./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product28.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_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/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_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/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_339ffcf4-3d67-471f-a59c-80cb4d857e03/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 25a137cac87a0e16e274f725e7bbd21e6c99dd9079b93c306fff086ae4fee1e1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:14:00,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:14:00,425 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:14:00,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:14:00,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:14:00,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:14:00,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:14:00,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:14:00,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:14:00,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:14:00,484 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:14:00,485 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:14:00,485 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:14:00,486 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:14:00,489 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:14:00,489 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:14:00,490 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:14:00,490 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:14:00,490 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:14:00,491 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:14:00,491 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:14:00,492 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:14:00,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:14:00,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:14:00,497 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:14:00,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:14:00,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:14:00,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:14:00,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:14:00,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:14:00,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:14:00,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:14:00,501 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:14:00,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:14:00,501 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:14:00,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:14:00,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:14:00,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:14:00,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:14:00,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:14:00,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:14:00,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:14:00,509 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:14:00,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:14:00,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:14:00,511 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:14:00,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:14:00,511 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_339ffcf4-3d67-471f-a59c-80cb4d857e03/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a137cac87a0e16e274f725e7bbd21e6c99dd9079b93c306fff086ae4fee1e1 [2024-11-09 06:14:00,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:14:00,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:14:00,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:14:00,926 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:14:00,927 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:14:00,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec1_product28.cil.c Unable to find full path for "g++" [2024-11-09 06:14:03,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:14:03,602 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:14:03,602 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c [2024-11-09 06:14:03,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/data/203f279be/baa26fa16e2d4241b424e08fdd45ad68/FLAG92b3912ae [2024-11-09 06:14:03,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/data/203f279be/baa26fa16e2d4241b424e08fdd45ad68 [2024-11-09 06:14:03,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:14:03,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:14:03,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:14:03,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:14:03,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:14:03,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:14:03" (1/1) ... [2024-11-09 06:14:03,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7134690b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:03, skipping insertion in model container [2024-11-09 06:14:03,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:14:03" (1/1) ... [2024-11-09 06:14:03,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:14:04,631 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_339ffcf4-3d67-471f-a59c-80cb4d857e03/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c[51091,51104] [2024-11-09 06:14:04,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:14:04,741 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:14:04,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-09 06:14:04,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1128] [2024-11-09 06:14:04,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1494] [2024-11-09 06:14:04,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1512] [2024-11-09 06:14:04,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1561] [2024-11-09 06:14:04,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1592] [2024-11-09 06:14:04,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1739] [2024-11-09 06:14:04,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2019] [2024-11-09 06:14:04,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2232] [2024-11-09 06:14:04,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2241] [2024-11-09 06:14:04,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2643] [2024-11-09 06:14:04,864 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_339ffcf4-3d67-471f-a59c-80cb4d857e03/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c[51091,51104] [2024-11-09 06:14:04,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:14:04,962 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:14:04,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04 WrapperNode [2024-11-09 06:14:04,963 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:14:04,964 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:14:04,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:14:04,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:14:04,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,116 INFO L138 Inliner]: procedures = 128, calls = 196, calls flagged for inlining = 55, calls inlined = 45, statements flattened = 858 [2024-11-09 06:14:05,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:14:05,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:14:05,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:14:05,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:14:05,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:14:05,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:14:05,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:14:05,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:14:05,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (1/1) ... [2024-11-09 06:14:05,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:14:05,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:14:05,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:14:05,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:14:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 06:14:05,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 06:14:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 06:14:05,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 06:14:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 06:14:05,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 06:14:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 06:14:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 06:14:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 06:14:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 06:14:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 06:14:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 06:14:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 06:14:05,312 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 06:14:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 06:14:05,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 06:14:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 06:14:05,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 06:14:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 06:14:05,313 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 06:14:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 06:14:05,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 06:14:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 06:14:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 06:14:05,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:14:05,314 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 06:14:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 06:14:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-09 06:14:05,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-09 06:14:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 06:14:05,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 06:14:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 06:14:05,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 06:14:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 06:14:05,316 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 06:14:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-09 06:14:05,317 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-09 06:14:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 06:14:05,317 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 06:14:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 06:14:05,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 06:14:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 06:14:05,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 06:14:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:14:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 06:14:05,319 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 06:14:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:14:05,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:14:05,574 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:14:05,577 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:14:06,835 INFO L? ?]: Removed 398 outVars from TransFormulas that were not future-live. [2024-11-09 06:14:06,836 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:14:07,524 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:14:07,524 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:14:07,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:14:07 BoogieIcfgContainer [2024-11-09 06:14:07,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:14:07,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:14:07,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:14:07,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:14:07,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:14:03" (1/3) ... [2024-11-09 06:14:07,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddc7439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:14:07, skipping insertion in model container [2024-11-09 06:14:07,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:04" (2/3) ... [2024-11-09 06:14:07,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddc7439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:14:07, skipping insertion in model container [2024-11-09 06:14:07,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:14:07" (3/3) ... [2024-11-09 06:14:07,533 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product28.cil.c [2024-11-09 06:14:07,551 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:14:07,551 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:14:07,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:14:07,626 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;@4242052b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:14:07,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:14:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 06:14:07,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 06:14:07,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:07,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:14:07,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:14:07,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:07,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1325782589, now seen corresponding path program 1 times [2024-11-09 06:14:07,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:14:07,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381775613] [2024-11-09 06:14:07,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:07,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:14:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:08,182 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 06:14:08,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:14:08,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381775613] [2024-11-09 06:14:08,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381775613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:14:08,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:14:08,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:14:08,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834000906] [2024-11-09 06:14:08,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:14:08,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:14:08,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:14:08,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:14:08,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:14:08,243 INFO L87 Difference]: Start difference. First operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:14:08,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:08,406 INFO L93 Difference]: Finished difference Result 277 states and 362 transitions. [2024-11-09 06:14:08,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:14:08,409 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2024-11-09 06:14:08,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:08,423 INFO L225 Difference]: With dead ends: 277 [2024-11-09 06:14:08,424 INFO L226 Difference]: Without dead ends: 177 [2024-11-09 06:14:08,428 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 06:14:08,434 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:08,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:14:08,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-09 06:14:08,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-09 06:14:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 107 states have internal predecessors, (136), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-09 06:14:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2024-11-09 06:14:08,511 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 235 transitions. Word has length 61 [2024-11-09 06:14:08,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:08,512 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 235 transitions. [2024-11-09 06:14:08,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:14:08,513 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 235 transitions. [2024-11-09 06:14:08,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 06:14:08,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:08,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:14:08,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:14:08,517 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:14:08,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1063800506, now seen corresponding path program 1 times [2024-11-09 06:14:08,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:14:08,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737350529] [2024-11-09 06:14:08,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:14:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:08,851 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 06:14:08,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:14:08,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737350529] [2024-11-09 06:14:08,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737350529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:14:08,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:14:08,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:14:08,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137867718] [2024-11-09 06:14:08,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:14:08,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:14:08,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:14:08,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:14:08,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:14:08,858 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:14:09,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:09,011 INFO L93 Difference]: Finished difference Result 273 states and 350 transitions. [2024-11-09 06:14:09,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:14:09,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2024-11-09 06:14:09,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:09,015 INFO L225 Difference]: With dead ends: 273 [2024-11-09 06:14:09,015 INFO L226 Difference]: Without dead ends: 179 [2024-11-09 06:14:09,016 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 06:14:09,018 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:09,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 411 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:14:09,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-09 06:14:09,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-09 06:14:09,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 109 states have internal predecessors, (138), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-09 06:14:09,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 237 transitions. [2024-11-09 06:14:09,038 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 237 transitions. Word has length 62 [2024-11-09 06:14:09,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:09,038 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 237 transitions. [2024-11-09 06:14:09,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:14:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 237 transitions. [2024-11-09 06:14:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:14:09,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:09,045 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, 1] [2024-11-09 06:14:09,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:14:09,049 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:14:09,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1275222841, now seen corresponding path program 1 times [2024-11-09 06:14:09,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:14:09,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633123780] [2024-11-09 06:14:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:09,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:14:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:09,211 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 06:14:09,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:14:09,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633123780] [2024-11-09 06:14:09,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633123780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:14:09,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:14:09,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:14:09,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833956131] [2024-11-09 06:14:09,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:14:09,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:14:09,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:14:09,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:14:09,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:14:09,216 INFO L87 Difference]: Start difference. First operand 179 states and 237 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:14:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:09,414 INFO L93 Difference]: Finished difference Result 388 states and 533 transitions. [2024-11-09 06:14:09,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:14:09,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2024-11-09 06:14:09,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:09,418 INFO L225 Difference]: With dead ends: 388 [2024-11-09 06:14:09,419 INFO L226 Difference]: Without dead ends: 227 [2024-11-09 06:14:09,420 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 06:14:09,422 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 57 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:09,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 417 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:14:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-09 06:14:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 222. [2024-11-09 06:14:09,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 138 states have (on average 1.3840579710144927) internal successors, (191), 141 states have internal predecessors, (191), 61 states have call successors, (61), 22 states have call predecessors, (61), 22 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:14:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 312 transitions. [2024-11-09 06:14:09,456 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 312 transitions. Word has length 67 [2024-11-09 06:14:09,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:09,459 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 312 transitions. [2024-11-09 06:14:09,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:14:09,460 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 312 transitions. [2024-11-09 06:14:09,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 06:14:09,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:09,463 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, 1, 1] [2024-11-09 06:14:09,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:14:09,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:14:09,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:09,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1994780118, now seen corresponding path program 1 times [2024-11-09 06:14:09,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:14:09,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931202187] [2024-11-09 06:14:09,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:09,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:14:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:09,752 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 06:14:09,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:14:09,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931202187] [2024-11-09 06:14:09,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931202187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:14:09,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157373078] [2024-11-09 06:14:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:09,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:14:09,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:14:09,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:14:09,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:14:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:10,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:14:10,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:10,313 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 06:14:10,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:10,454 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 06:14:10,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157373078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:10,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [28755438] [2024-11-09 06:14:10,496 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2024-11-09 06:14:10,496 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:14:10,500 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:14:10,508 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:14:10,509 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:14:46,357 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-09 06:14:46,672 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2024-11-09 06:14:46,925 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:15:55,253 WARN L286 SmtUtils]: Spent 11.50s on a formula simplification. DAG size of input: 462 DAG size of output: 462 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:16:03,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [28755438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:03,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:16:03,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 06:16:03,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244062600] [2024-11-09 06:16:03,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:03,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:16:03,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:03,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:16:03,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:16:03,392 INFO L87 Difference]: Start difference. First operand 222 states and 312 transitions. Second operand has 23 states, 15 states have (on average 2.4) internal successors, (36), 14 states have internal predecessors, (36), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 06:16:20,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:20,285 INFO L93 Difference]: Finished difference Result 458 states and 660 transitions. [2024-11-09 06:16:20,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 06:16:20,286 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.4) internal successors, (36), 14 states have internal predecessors, (36), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 68 [2024-11-09 06:16:20,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:20,289 INFO L225 Difference]: With dead ends: 458 [2024-11-09 06:16:20,289 INFO L226 Difference]: Without dead ends: 254 [2024-11-09 06:16:20,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 84.2s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2024-11-09 06:16:20,292 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 26 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:20,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2801 Invalid, 2027 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-09 06:16:20,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-09 06:16:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 245. [2024-11-09 06:16:20,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 160 states have (on average 1.4) internal successors, (224), 163 states have internal predecessors, (224), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:16:20,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 345 transitions. [2024-11-09 06:16:20,362 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 345 transitions. Word has length 68 [2024-11-09 06:16:20,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:20,363 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 345 transitions. [2024-11-09 06:16:20,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.4) internal successors, (36), 14 states have internal predecessors, (36), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 06:16:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 345 transitions. [2024-11-09 06:16:20,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 06:16:20,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:20,366 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:16:20,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:16:20,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:16:20,567 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:16:20,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:20,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1969210579, now seen corresponding path program 1 times [2024-11-09 06:16:20,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:20,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501003575] [2024-11-09 06:16:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:20,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:20,666 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 06:16:20,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:20,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501003575] [2024-11-09 06:16:20,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501003575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:20,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:20,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:16:20,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129733947] [2024-11-09 06:16:20,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:20,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:16:20,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:20,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:16:20,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:20,670 INFO L87 Difference]: Start difference. First operand 245 states and 345 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 06:16:20,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:20,859 INFO L93 Difference]: Finished difference Result 583 states and 854 transitions. [2024-11-09 06:16:20,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:16:20,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2024-11-09 06:16:20,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:20,864 INFO L225 Difference]: With dead ends: 583 [2024-11-09 06:16:20,864 INFO L226 Difference]: Without dead ends: 362 [2024-11-09 06:16:20,865 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 06:16:20,866 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 55 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:20,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 426 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:16:20,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-09 06:16:20,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 357. [2024-11-09 06:16:20,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 247 states have (on average 1.45748987854251) internal successors, (360), 250 states have internal predecessors, (360), 86 states have call successors, (86), 23 states have call predecessors, (86), 23 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-09 06:16:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 531 transitions. [2024-11-09 06:16:20,964 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 531 transitions. Word has length 73 [2024-11-09 06:16:20,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:20,965 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 531 transitions. [2024-11-09 06:16:20,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 06:16:20,966 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 531 transitions. [2024-11-09 06:16:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:16:20,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:20,971 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:16:20,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:16:20,971 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:16:20,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:20,972 INFO L85 PathProgramCache]: Analyzing trace with hash 993667399, now seen corresponding path program 1 times [2024-11-09 06:16:20,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:20,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076913101] [2024-11-09 06:16:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:20,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:21,164 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 06:16:21,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:21,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076913101] [2024-11-09 06:16:21,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076913101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:16:21,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555385572] [2024-11-09 06:16:21,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:21,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:16:21,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:16:21,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:16:21,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:16:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:21,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:16:21,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:16:21,555 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 06:16:21,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:16:21,637 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 06:16:21,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555385572] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:16:21,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [725143949] [2024-11-09 06:16:21,641 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-09 06:16:21,641 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:16:21,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:16:21,642 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:16:21,642 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:16:57,997 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-09 06:16:58,262 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 443 for LOIs [2024-11-09 06:16:59,567 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:17:24,057 WARN L286 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 443 DAG size of output: 443 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:17:35,087 WARN L286 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 467 DAG size of output: 463 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:18:17,345 WARN L286 SmtUtils]: Spent 10.47s on a formula simplification. DAG size of input: 464 DAG size of output: 464 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:18:37,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [725143949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:37,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:18:37,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 06:18:37,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901530647] [2024-11-09 06:18:37,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:37,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 06:18:37,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:37,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 06:18:37,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:18:37,176 INFO L87 Difference]: Start difference. First operand 357 states and 531 transitions. Second operand has 26 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-09 06:18:56,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:56,540 INFO L93 Difference]: Finished difference Result 724 states and 1103 transitions. [2024-11-09 06:18:56,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 06:18:56,542 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 74 [2024-11-09 06:18:56,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:56,544 INFO L225 Difference]: With dead ends: 724 [2024-11-09 06:18:56,544 INFO L226 Difference]: Without dead ends: 430 [2024-11-09 06:18:56,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 105.1s TimeCoverageRelationStatistics Valid=108, Invalid=948, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 06:18:56,546 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 62 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 2636 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:56,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 3004 Invalid, 2647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2636 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-09 06:18:56,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-09 06:18:56,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 371. [2024-11-09 06:18:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 259 states have (on average 1.4555984555984556) internal successors, (377), 262 states have internal predecessors, (377), 87 states have call successors, (87), 24 states have call predecessors, (87), 24 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-09 06:18:56,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 550 transitions. [2024-11-09 06:18:56,644 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 550 transitions. Word has length 74 [2024-11-09 06:18:56,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:56,645 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 550 transitions. [2024-11-09 06:18:56,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-09 06:18:56,646 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 550 transitions. [2024-11-09 06:18:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:18:56,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:56,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:56,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:18:56,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:56,849 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:18:56,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:56,849 INFO L85 PathProgramCache]: Analyzing trace with hash 496322076, now seen corresponding path program 1 times [2024-11-09 06:18:56,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:56,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607405859] [2024-11-09 06:18:56,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:56,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:57,032 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 06:18:57,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:57,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607405859] [2024-11-09 06:18:57,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607405859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:57,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993896389] [2024-11-09 06:18:57,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:57,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:57,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:57,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:57,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:18:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:57,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:18:57,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:57,399 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 06:18:57,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:18:57,481 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 06:18:57,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993896389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:18:57,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [54849861] [2024-11-09 06:18:57,484 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-09 06:18:57,484 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:18:57,485 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:18:57,485 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:18:57,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:20:14,257 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-09 06:20:14,484 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 489 for LOIs [2024-11-09 06:20:15,708 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 498 for LOIs [2024-11-09 06:20:16,799 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 434 for LOIs [2024-11-09 06:20:17,257 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2024-11-09 06:20:17,397 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:21:20,353 WARN L286 SmtUtils]: Spent 12.91s on a formula simplification. DAG size of input: 522 DAG size of output: 517 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:21:26,319 WARN L286 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 523 DAG size of output: 515 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:21:46,905 WARN L286 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 503 DAG size of output: 503 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:21:52,729 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 508 DAG size of output: 504 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:21:58,300 WARN L286 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 498 DAG size of output: 494 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:22:03,874 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 498 DAG size of output: 494 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:22:09,473 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 498 DAG size of output: 494 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:22:25,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [54849861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:22:25,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:22:25,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 06:22:25,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837849601] [2024-11-09 06:22:25,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:22:25,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 06:22:25,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:22:25,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 06:22:25,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:22:25,848 INFO L87 Difference]: Start difference. First operand 371 states and 550 transitions. Second operand has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-09 06:22:47,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:47,443 INFO L93 Difference]: Finished difference Result 747 states and 1136 transitions. [2024-11-09 06:22:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 06:22:47,443 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 77 [2024-11-09 06:22:47,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:47,447 INFO L225 Difference]: With dead ends: 747 [2024-11-09 06:22:47,447 INFO L226 Difference]: Without dead ends: 453 [2024-11-09 06:22:47,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 131.8s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:22:47,452 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 75 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 3526 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 3536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:47,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3434 Invalid, 3536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3526 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2024-11-09 06:22:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-09 06:22:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 407. [2024-11-09 06:22:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 289 states have (on average 1.4498269896193772) internal successors, (419), 292 states have internal predecessors, (419), 90 states have call successors, (90), 27 states have call predecessors, (90), 27 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-09 06:22:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 598 transitions. [2024-11-09 06:22:47,581 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 598 transitions. Word has length 77 [2024-11-09 06:22:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:47,581 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 598 transitions. [2024-11-09 06:22:47,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-09 06:22:47,582 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 598 transitions. [2024-11-09 06:22:47,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 06:22:47,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:47,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:47,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:22:47,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:22:47,785 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:22:47,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:47,786 INFO L85 PathProgramCache]: Analyzing trace with hash 345062509, now seen corresponding path program 1 times [2024-11-09 06:22:47,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:22:47,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947980214] [2024-11-09 06:22:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:47,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:22:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:47,996 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 06:22:47,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:22:47,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947980214] [2024-11-09 06:22:47,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947980214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:22:47,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276949116] [2024-11-09 06:22:47,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:48,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:22:48,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:22:48,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:22:48,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:22:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:48,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:22:48,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:22:48,371 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 06:22:48,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:22:48,454 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 06:22:48,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276949116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:22:48,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [226267269] [2024-11-09 06:22:48,458 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2024-11-09 06:22:48,458 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:22:48,459 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:22:48,459 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:22:48,459 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:23:30,374 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-09 06:23:30,529 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2024-11-09 06:23:30,648 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:24:31,434 WARN L286 SmtUtils]: Spent 10.45s on a formula simplification. DAG size of input: 462 DAG size of output: 462 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:24:52,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [226267269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:52,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:24:52,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2024-11-09 06:24:52,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452775408] [2024-11-09 06:24:52,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:52,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 06:24:52,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 06:24:52,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=951, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 06:24:52,142 INFO L87 Difference]: Start difference. First operand 407 states and 598 transitions. Second operand has 28 states, 20 states have (on average 2.2) internal successors, (44), 19 states have internal predecessors, (44), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 06:25:30,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:30,128 INFO L93 Difference]: Finished difference Result 749 states and 1127 transitions. [2024-11-09 06:25:30,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 06:25:30,129 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 20 states have (on average 2.2) internal successors, (44), 19 states have internal predecessors, (44), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 76 [2024-11-09 06:25:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:30,132 INFO L225 Difference]: With dead ends: 749 [2024-11-09 06:25:30,132 INFO L226 Difference]: Without dead ends: 455 [2024-11-09 06:25:30,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 110.6s TimeCoverageRelationStatistics Valid=152, Invalid=1408, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 06:25:30,134 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 44 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:30,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 2769 Invalid, 2364 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-09 06:25:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-09 06:25:30,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 427. [2024-11-09 06:25:30,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 309 states have (on average 1.4530744336569579) internal successors, (449), 312 states have internal predecessors, (449), 90 states have call successors, (90), 27 states have call predecessors, (90), 27 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-09 06:25:30,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 628 transitions. [2024-11-09 06:25:30,256 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 628 transitions. Word has length 76 [2024-11-09 06:25:30,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:30,257 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 628 transitions. [2024-11-09 06:25:30,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 20 states have (on average 2.2) internal successors, (44), 19 states have internal predecessors, (44), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 06:25:30,257 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 628 transitions. [2024-11-09 06:25:30,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 06:25:30,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:30,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:30,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:25:30,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:25:30,460 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:25:30,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:30,461 INFO L85 PathProgramCache]: Analyzing trace with hash 534293871, now seen corresponding path program 1 times [2024-11-09 06:25:30,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:25:30,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141696151] [2024-11-09 06:25:30,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:30,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:25:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:30,624 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 06:25:30,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:25:30,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141696151] [2024-11-09 06:25:30,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141696151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:25:30,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303755975] [2024-11-09 06:25:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:30,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:25:30,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:25:30,627 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:25:30,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:25:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:30,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:25:30,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:31,012 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 06:25:31,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:25:31,098 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 06:25:31,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303755975] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:25:31,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [482883025] [2024-11-09 06:25:31,101 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-09 06:25:31,102 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:25:31,103 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:25:31,103 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:25:31,103 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:26:08,070 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-09 06:26:08,227 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 443 for LOIs [2024-11-09 06:26:09,396 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:26:33,225 WARN L286 SmtUtils]: Spent 7.32s on a formula simplification. DAG size of input: 443 DAG size of output: 443 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:26:44,482 WARN L286 SmtUtils]: Spent 10.83s on a formula simplification. DAG size of input: 467 DAG size of output: 463 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:27:37,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [482883025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:37,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:27:37,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [5, 5, 5] total 32 [2024-11-09 06:27:37,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123047513] [2024-11-09 06:27:37,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:37,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 06:27:37,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:27:37,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 06:27:37,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2024-11-09 06:27:37,949 INFO L87 Difference]: Start difference. First operand 427 states and 628 transitions. Second operand has 27 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 states have internal predecessors, (40), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-09 06:27:59,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:59,212 INFO L93 Difference]: Finished difference Result 831 states and 1257 transitions. [2024-11-09 06:27:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:27:59,212 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 states have internal predecessors, (40), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 79 [2024-11-09 06:27:59,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:59,216 INFO L225 Difference]: With dead ends: 831 [2024-11-09 06:27:59,216 INFO L226 Difference]: Without dead ends: 497 [2024-11-09 06:27:59,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 208 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 96.7s TimeCoverageRelationStatistics Valid=129, Invalid=1131, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:27:59,219 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 112 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 3121 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 3173 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:59,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 3173 Invalid, 3137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3121 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-11-09 06:27:59,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-09 06:27:59,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 436. [2024-11-09 06:27:59,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 316 states have (on average 1.4430379746835442) internal successors, (456), 319 states have internal predecessors, (456), 91 states have call successors, (91), 28 states have call predecessors, (91), 28 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-09 06:27:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 637 transitions. [2024-11-09 06:27:59,369 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 637 transitions. Word has length 79 [2024-11-09 06:27:59,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:59,370 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 637 transitions. [2024-11-09 06:27:59,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 states have internal predecessors, (40), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-09 06:27:59,370 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 637 transitions. [2024-11-09 06:27:59,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 06:27:59,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:59,372 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:59,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:59,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:27:59,573 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:27:59,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:59,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2140036131, now seen corresponding path program 1 times [2024-11-09 06:27:59,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:27:59,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896607055] [2024-11-09 06:27:59,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:59,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:27:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 06:28:01,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:28:01,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896607055] [2024-11-09 06:28:01,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896607055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:28:01,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783426033] [2024-11-09 06:28:01,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:01,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:28:01,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:28:01,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:28:01,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339ffcf4-3d67-471f-a59c-80cb4d857e03/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:28:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:01,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:28:01,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:28:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:28:01,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:28:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:28:01,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783426033] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:28:01,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [988064623] [2024-11-09 06:28:01,797 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 06:28:01,797 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:28:01,798 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:28:01,798 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:28:01,798 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs