./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/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_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/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_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/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 14180d3cb690799ed57b4096de70e545e9154e30692708de4df58b96eb76a2f0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:47:59,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:47:59,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:48:00,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:48:00,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:48:00,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:48:00,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:48:00,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:48:00,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:48:00,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:48:00,034 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:48:00,034 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:48:00,035 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:48:00,035 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:48:00,036 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:48:00,036 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:48:00,036 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:48:00,036 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:48:00,037 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:48:00,037 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:48:00,037 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:48:00,041 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:48:00,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:48:00,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:48:00,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:48:00,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:48:00,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:48:00,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:48:00,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:48:00,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:48:00,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:48:00,045 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:48:00,045 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:48:00,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:48:00,046 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:48:00,046 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:48:00,046 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:48:00,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:48:00,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:48:00,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:48:00,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:48:00,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:48:00,049 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:48:00,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:48:00,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:48:00,049 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:48:00,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:48:00,050 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_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14180d3cb690799ed57b4096de70e545e9154e30692708de4df58b96eb76a2f0 [2024-11-09 04:48:00,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:48:00,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:48:00,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:48:00,377 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:48:00,378 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:48:00,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec8_product20.cil.c Unable to find full path for "g++" [2024-11-09 04:48:02,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:48:03,020 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:48:03,021 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/sv-benchmarks/c/product-lines/email_spec8_product20.cil.c [2024-11-09 04:48:03,055 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/data/928509247/0b6df6d43eda4512accdf1e8835a2edf/FLAGa5f4d2fe3 [2024-11-09 04:48:03,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/data/928509247/0b6df6d43eda4512accdf1e8835a2edf [2024-11-09 04:48:03,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:48:03,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:48:03,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:48:03,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:48:03,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:48:03,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:48:03" (1/1) ... [2024-11-09 04:48:03,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d51ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:03, skipping insertion in model container [2024-11-09 04:48:03,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:48:03" (1/1) ... [2024-11-09 04:48:03,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:48:03,614 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_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/sv-benchmarks/c/product-lines/email_spec8_product20.cil.c[19452,19465] [2024-11-09 04:48:03,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:48:03,988 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:48:04,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-09 04:48:04,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [414] [2024-11-09 04:48:04,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [432] [2024-11-09 04:48:04,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [844] [2024-11-09 04:48:04,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [853] [2024-11-09 04:48:04,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [1933] [2024-11-09 04:48:04,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1987] [2024-11-09 04:48:04,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2216] [2024-11-09 04:48:04,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2321] [2024-11-09 04:48:04,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2618] [2024-11-09 04:48:04,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2925] [2024-11-09 04:48:04,070 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_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/sv-benchmarks/c/product-lines/email_spec8_product20.cil.c[19452,19465] [2024-11-09 04:48:04,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:48:04,232 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:48:04,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04 WrapperNode [2024-11-09 04:48:04,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:48:04,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:48:04,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:48:04,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:48:04,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,386 INFO L138 Inliner]: procedures = 129, calls = 200, calls flagged for inlining = 56, calls inlined = 49, statements flattened = 965 [2024-11-09 04:48:04,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:48:04,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:48:04,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:48:04,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:48:04,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,474 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:48:04,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:48:04,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:48:04,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:48:04,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (1/1) ... [2024-11-09 04:48:04,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:48:04,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:04,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:48:04,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:48:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-09 04:48:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-09 04:48:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 04:48:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 04:48:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-09 04:48:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-09 04:48:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 04:48:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 04:48:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 04:48:04,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 04:48:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-09 04:48:04,574 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-09 04:48:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 04:48:04,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 04:48:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 04:48:04,575 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 04:48:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 04:48:04,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 04:48:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 04:48:04,576 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 04:48:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 04:48:04,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 04:48:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 04:48:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 04:48:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:48:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-09 04:48:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-09 04:48:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 04:48:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 04:48:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 04:48:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 04:48:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 04:48:04,579 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 04:48:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 04:48:04,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 04:48:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 04:48:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 04:48:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 04:48:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 04:48:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 04:48:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 04:48:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:48:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 04:48:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 04:48:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-09 04:48:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-09 04:48:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:48:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:48:04,817 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:48:04,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:48:06,140 INFO L? ?]: Removed 483 outVars from TransFormulas that were not future-live. [2024-11-09 04:48:06,143 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:48:06,981 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:48:06,981 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:48:06,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:48:06 BoogieIcfgContainer [2024-11-09 04:48:06,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:48:06,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:48:06,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:48:06,988 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:48:06,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:48:03" (1/3) ... [2024-11-09 04:48:06,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d760e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:48:06, skipping insertion in model container [2024-11-09 04:48:06,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:04" (2/3) ... [2024-11-09 04:48:06,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d760e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:48:06, skipping insertion in model container [2024-11-09 04:48:06,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:48:06" (3/3) ... [2024-11-09 04:48:06,991 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product20.cil.c [2024-11-09 04:48:07,010 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:48:07,010 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:48:07,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:48:07,085 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;@7eb512e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:48:07,085 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:48:07,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 108 states have internal predecessors, (138), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 04:48:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:48:07,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:07,103 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, 1] [2024-11-09 04:48:07,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:48:07,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:07,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1186256672, now seen corresponding path program 1 times [2024-11-09 04:48:07,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:07,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028972821] [2024-11-09 04:48:07,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:07,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:07,508 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 04:48:07,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:07,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028972821] [2024-11-09 04:48:07,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028972821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:07,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:07,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:48:07,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729010569] [2024-11-09 04:48:07,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:07,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:48:07,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:07,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:48:07,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:48:07,552 INFO L87 Difference]: Start difference. First operand has 181 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 108 states have internal predecessors, (138), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 04:48:07,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:07,744 INFO L93 Difference]: Finished difference Result 270 states and 363 transitions. [2024-11-09 04:48:07,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:48:07,747 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2024-11-09 04:48:07,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:07,763 INFO L225 Difference]: With dead ends: 270 [2024-11-09 04:48:07,764 INFO L226 Difference]: Without dead ends: 178 [2024-11-09 04:48:07,769 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 04:48:07,775 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:07,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:48:07,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-09 04:48:07,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-09 04:48:07,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 101 states have (on average 1.306930693069307) internal successors, (132), 105 states have internal predecessors, (132), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:48:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 239 transitions. [2024-11-09 04:48:07,859 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 239 transitions. Word has length 63 [2024-11-09 04:48:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:07,865 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 239 transitions. [2024-11-09 04:48:07,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 04:48:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 239 transitions. [2024-11-09 04:48:07,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 04:48:07,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:07,874 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, 1, 1] [2024-11-09 04:48:07,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:48:07,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:48:07,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:07,876 INFO L85 PathProgramCache]: Analyzing trace with hash -147704294, now seen corresponding path program 1 times [2024-11-09 04:48:07,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:07,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000865005] [2024-11-09 04:48:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:07,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:08,160 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 04:48:08,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:08,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000865005] [2024-11-09 04:48:08,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000865005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:08,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:08,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:48:08,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291131391] [2024-11-09 04:48:08,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:08,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:48:08,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:08,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:48:08,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:48:08,165 INFO L87 Difference]: Start difference. First operand 178 states and 239 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 04:48:08,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:08,310 INFO L93 Difference]: Finished difference Result 266 states and 348 transitions. [2024-11-09 04:48:08,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:48:08,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2024-11-09 04:48:08,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:08,314 INFO L225 Difference]: With dead ends: 266 [2024-11-09 04:48:08,314 INFO L226 Difference]: Without dead ends: 180 [2024-11-09 04:48:08,315 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 04:48:08,317 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:08,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:48:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-09 04:48:08,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-09 04:48:08,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:48:08,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 241 transitions. [2024-11-09 04:48:08,349 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 241 transitions. Word has length 64 [2024-11-09 04:48:08,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:08,349 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 241 transitions. [2024-11-09 04:48:08,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 04:48:08,350 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 241 transitions. [2024-11-09 04:48:08,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 04:48:08,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:08,355 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] [2024-11-09 04:48:08,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:48:08,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:48:08,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:08,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1944895004, now seen corresponding path program 1 times [2024-11-09 04:48:08,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:08,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191023128] [2024-11-09 04:48:08,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:08,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:08,519 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 04:48:08,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:08,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191023128] [2024-11-09 04:48:08,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191023128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:08,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:08,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:48:08,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678206664] [2024-11-09 04:48:08,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:08,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:48:08,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:08,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:48:08,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:48:08,522 INFO L87 Difference]: Start difference. First operand 180 states and 241 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 04:48:08,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:08,700 INFO L93 Difference]: Finished difference Result 395 states and 549 transitions. [2024-11-09 04:48:08,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:48:08,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2024-11-09 04:48:08,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:08,706 INFO L225 Difference]: With dead ends: 395 [2024-11-09 04:48:08,706 INFO L226 Difference]: Without dead ends: 233 [2024-11-09 04:48:08,712 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 04:48:08,713 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 59 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:08,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 413 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:48:08,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-09 04:48:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2024-11-09 04:48:08,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 137 states have (on average 1.3795620437956204) internal successors, (189), 141 states have internal predecessors, (189), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-09 04:48:08,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 324 transitions. [2024-11-09 04:48:08,780 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 324 transitions. Word has length 69 [2024-11-09 04:48:08,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:08,781 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 324 transitions. [2024-11-09 04:48:08,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 04:48:08,781 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 324 transitions. [2024-11-09 04:48:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:48:08,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:08,790 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] [2024-11-09 04:48:08,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:48:08,791 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:48:08,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2112960523, now seen corresponding path program 1 times [2024-11-09 04:48:08,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:08,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273431217] [2024-11-09 04:48:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:08,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:09,082 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 04:48:09,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:09,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273431217] [2024-11-09 04:48:09,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273431217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:48:09,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124604407] [2024-11-09 04:48:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:09,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:09,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:09,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:48:09,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:48:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:09,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:48:09,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:09,640 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 04:48:09,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:48:09,763 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 04:48:09,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124604407] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:48:09,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [656310206] [2024-11-09 04:48:09,794 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-09 04:48:09,794 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:48:09,798 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:48:09,806 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:48:09,809 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:48:45,431 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 04:48:45,614 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-09 04:48:45,843 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:49:48,570 WARN L286 SmtUtils]: Spent 10.61s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:50:01,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [656310206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:01,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:50:01,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 04:50:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005281725] [2024-11-09 04:50:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:01,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 04:50:01,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:01,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 04:50:01,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-11-09 04:50:01,236 INFO L87 Difference]: Start difference. First operand 228 states and 324 transitions. Second operand has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 04:50:19,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:19,120 INFO L93 Difference]: Finished difference Result 471 states and 686 transitions. [2024-11-09 04:50:19,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 04:50:19,121 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2024-11-09 04:50:19,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:19,125 INFO L225 Difference]: With dead ends: 471 [2024-11-09 04:50:19,126 INFO L226 Difference]: Without dead ends: 261 [2024-11-09 04:50:19,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 82.3s TimeCoverageRelationStatistics Valid=88, Invalid=782, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:50:19,129 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 2158 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:19,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2485 Invalid, 2169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2158 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2024-11-09 04:50:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-09 04:50:19,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 251. [2024-11-09 04:50:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 159 states have (on average 1.3962264150943395) internal successors, (222), 163 states have internal predecessors, (222), 68 states have call successors, (68), 23 states have call predecessors, (68), 23 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-09 04:50:19,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 357 transitions. [2024-11-09 04:50:19,210 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 357 transitions. Word has length 70 [2024-11-09 04:50:19,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:19,211 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 357 transitions. [2024-11-09 04:50:19,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 04:50:19,211 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 357 transitions. [2024-11-09 04:50:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 04:50:19,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:19,214 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, 1] [2024-11-09 04:50:19,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:50:19,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:50:19,415 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:50:19,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:19,416 INFO L85 PathProgramCache]: Analyzing trace with hash -2103506680, now seen corresponding path program 1 times [2024-11-09 04:50:19,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:19,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920298320] [2024-11-09 04:50:19,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:19,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:19,546 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 04:50:19,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:19,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920298320] [2024-11-09 04:50:19,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920298320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:19,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:19,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:50:19,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855059316] [2024-11-09 04:50:19,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:19,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:50:19,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:19,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:50:19,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:50:19,554 INFO L87 Difference]: Start difference. First operand 251 states and 357 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 04:50:19,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:19,839 INFO L93 Difference]: Finished difference Result 605 states and 894 transitions. [2024-11-09 04:50:19,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:50:19,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2024-11-09 04:50:19,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:19,847 INFO L225 Difference]: With dead ends: 605 [2024-11-09 04:50:19,847 INFO L226 Difference]: Without dead ends: 378 [2024-11-09 04:50:19,849 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 04:50:19,850 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 57 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:19,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 411 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:50:19,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-09 04:50:19,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 373. [2024-11-09 04:50:19,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 250 states have (on average 1.448) internal successors, (362), 254 states have internal predecessors, (362), 99 states have call successors, (99), 23 states have call predecessors, (99), 23 states have return successors, (98), 97 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-09 04:50:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 559 transitions. [2024-11-09 04:50:19,995 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 559 transitions. Word has length 75 [2024-11-09 04:50:19,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:19,996 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 559 transitions. [2024-11-09 04:50:19,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 04:50:19,996 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 559 transitions. [2024-11-09 04:50:19,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 04:50:19,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:19,999 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, 1, 1] [2024-11-09 04:50:19,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:50:19,999 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:50:20,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:20,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1847879538, now seen corresponding path program 1 times [2024-11-09 04:50:20,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:20,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112264035] [2024-11-09 04:50:20,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:20,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:20,182 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 04:50:20,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:20,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112264035] [2024-11-09 04:50:20,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112264035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:50:20,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194052260] [2024-11-09 04:50:20,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:20,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:50:20,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:50:20,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:50:20,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:50:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:20,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:50:20,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:20,626 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 04:50:20,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:50:20,718 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 04:50:20,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194052260] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:50:20,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1107682770] [2024-11-09 04:50:20,723 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-09 04:50:20,723 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:50:20,724 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:50:20,724 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:50:20,724 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:50:56,301 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 04:50:56,501 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 437 for LOIs [2024-11-09 04:50:57,773 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:51:22,226 WARN L286 SmtUtils]: Spent 7.70s on a formula simplification. DAG size of input: 437 DAG size of output: 438 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:51:33,795 WARN L286 SmtUtils]: Spent 11.14s on a formula simplification. DAG size of input: 461 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:52:16,411 WARN L286 SmtUtils]: Spent 10.65s on a formula simplification. DAG size of input: 454 DAG size of output: 454 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:52:31,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1107682770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:52:31,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:52:31,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 04:52:31,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115723310] [2024-11-09 04:52:31,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:52:31,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 04:52:31,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:52:31,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 04:52:31,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2024-11-09 04:52:31,541 INFO L87 Difference]: Start difference. First operand 373 states and 559 transitions. Second operand has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-09 04:52:50,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:52:50,968 INFO L93 Difference]: Finished difference Result 737 states and 1121 transitions. [2024-11-09 04:52:50,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 04:52:50,969 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2024-11-09 04:52:50,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:52:50,972 INFO L225 Difference]: With dead ends: 737 [2024-11-09 04:52:50,973 INFO L226 Difference]: Without dead ends: 427 [2024-11-09 04:52:50,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 101.6s TimeCoverageRelationStatistics Valid=106, Invalid=950, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 04:52:50,976 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 24 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 2284 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 2294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:52:50,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2486 Invalid, 2294 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2284 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2024-11-09 04:52:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-09 04:52:51,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 387. [2024-11-09 04:52:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 262 states have (on average 1.4465648854961832) internal successors, (379), 266 states have internal predecessors, (379), 100 states have call successors, (100), 24 states have call predecessors, (100), 24 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-09 04:52:51,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 578 transitions. [2024-11-09 04:52:51,100 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 578 transitions. Word has length 76 [2024-11-09 04:52:51,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:52:51,100 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 578 transitions. [2024-11-09 04:52:51,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-09 04:52:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 578 transitions. [2024-11-09 04:52:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 04:52:51,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:52:51,104 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, 1, 1] [2024-11-09 04:52:51,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:52:51,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:52:51,305 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:52:51,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:52:51,306 INFO L85 PathProgramCache]: Analyzing trace with hash 73608647, now seen corresponding path program 1 times [2024-11-09 04:52:51,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:52:51,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172952192] [2024-11-09 04:52:51,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:52:51,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:52:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:52:51,494 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 04:52:51,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:52:51,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172952192] [2024-11-09 04:52:51,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172952192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:52:51,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828120915] [2024-11-09 04:52:51,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:52:51,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:52:51,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:52:51,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:52:51,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:52:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:52:51,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:52:51,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:52:51,987 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 04:52:51,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:52:52,088 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 04:52:52,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828120915] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:52:52,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2120110283] [2024-11-09 04:52:52,093 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 04:52:52,093 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:52:52,094 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:52:52,094 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:52:52,094 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:53:49,414 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 04:53:49,588 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 483 for LOIs [2024-11-09 04:53:50,620 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 292 for LOIs [2024-11-09 04:53:50,961 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 220 for LOIs [2024-11-09 04:53:51,107 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-09 04:53:51,310 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:54:55,511 WARN L286 SmtUtils]: Spent 13.31s on a formula simplification. DAG size of input: 512 DAG size of output: 507 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:55:16,164 WARN L286 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 488 DAG size of output: 484 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:55:22,167 WARN L286 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 483 DAG size of output: 479 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:55:28,499 WARN L286 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 483 DAG size of output: 479 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:55:34,758 WARN L286 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 479 DAG size of output: 475 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:55:34,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2120110283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:55:34,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:55:34,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 04:55:34,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614087222] [2024-11-09 04:55:34,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:55:34,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 04:55:34,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:55:34,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 04:55:34,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1286, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 04:55:34,767 INFO L87 Difference]: Start difference. First operand 387 states and 578 transitions. Second operand has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-09 04:55:52,420 WARN L286 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 515 DAG size of output: 475 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:56:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:56:06,420 INFO L93 Difference]: Finished difference Result 789 states and 1208 transitions. [2024-11-09 04:56:06,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 04:56:06,421 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2024-11-09 04:56:06,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:56:06,425 INFO L225 Difference]: With dead ends: 789 [2024-11-09 04:56:06,426 INFO L226 Difference]: Without dead ends: 479 [2024-11-09 04:56:06,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 115.8s TimeCoverageRelationStatistics Valid=136, Invalid=1504, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 04:56:06,429 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 57 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 3631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:56:06,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3023 Invalid, 3631 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2024-11-09 04:56:06,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-09 04:56:06,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 423. [2024-11-09 04:56:06,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 292 states have (on average 1.4417808219178083) internal successors, (421), 296 states have internal predecessors, (421), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-09 04:56:06,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 626 transitions. [2024-11-09 04:56:06,592 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 626 transitions. Word has length 79 [2024-11-09 04:56:06,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:56:06,593 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 626 transitions. [2024-11-09 04:56:06,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-09 04:56:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 626 transitions. [2024-11-09 04:56:06,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 04:56:06,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:56:06,596 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, 1] [2024-11-09 04:56:06,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 04:56:06,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:56:06,801 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:56:06,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:56:06,801 INFO L85 PathProgramCache]: Analyzing trace with hash -752170837, now seen corresponding path program 1 times [2024-11-09 04:56:06,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:56:06,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535865779] [2024-11-09 04:56:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:56:06,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:56:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:56:06,952 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 04:56:06,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:56:06,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535865779] [2024-11-09 04:56:06,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535865779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:56:06,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837615021] [2024-11-09 04:56:06,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:56:06,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:56:06,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:56:06,955 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:56:06,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:56:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:56:07,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:56:07,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:56:07,399 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 04:56:07,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:56:07,500 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 04:56:07,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837615021] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:56:07,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [809674556] [2024-11-09 04:56:07,504 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-09 04:56:07,504 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:56:07,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:56:07,505 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:56:07,505 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:56:56,075 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 04:56:56,255 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-09 04:56:56,556 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:57:59,522 WARN L286 SmtUtils]: Spent 11.14s on a formula simplification. DAG size of input: 452 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:58:33,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [809674556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:58:33,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:58:33,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 04:58:33,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619412092] [2024-11-09 04:58:33,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:58:33,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 04:58:33,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:58:33,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 04:58:33,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2024-11-09 04:58:33,963 INFO L87 Difference]: Start difference. First operand 423 states and 626 transitions. Second operand has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 04:58:52,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:58:52,689 INFO L93 Difference]: Finished difference Result 782 states and 1185 transitions. [2024-11-09 04:58:52,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 04:58:52,690 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 78 [2024-11-09 04:58:52,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:58:52,696 INFO L225 Difference]: With dead ends: 782 [2024-11-09 04:58:52,697 INFO L226 Difference]: Without dead ends: 472 [2024-11-09 04:58:52,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 104.7s TimeCoverageRelationStatistics Valid=108, Invalid=1014, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 04:58:52,699 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 18 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:58:52,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2424 Invalid, 2319 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-09 04:58:52,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-09 04:58:52,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 443. [2024-11-09 04:58:52,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 312 states have (on average 1.4455128205128205) internal successors, (451), 316 states have internal predecessors, (451), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-09 04:58:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 656 transitions. [2024-11-09 04:58:52,882 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 656 transitions. Word has length 78 [2024-11-09 04:58:52,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:58:52,882 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 656 transitions. [2024-11-09 04:58:52,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 04:58:52,883 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 656 transitions. [2024-11-09 04:58:52,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 04:58:52,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:58:52,886 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, 1, 1] [2024-11-09 04:58:52,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 04:58:53,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:58:53,087 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:58:53,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:58:53,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1906174345, now seen corresponding path program 1 times [2024-11-09 04:58:53,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:58:53,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042028205] [2024-11-09 04:58:53,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:58:53,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:58:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:58:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 04:58:53,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:58:53,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042028205] [2024-11-09 04:58:53,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042028205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:58:53,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:58:53,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:58:53,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594570558] [2024-11-09 04:58:53,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:58:53,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:58:53,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:58:53,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:58:53,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:58:53,374 INFO L87 Difference]: Start difference. First operand 443 states and 656 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 04:58:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:58:53,699 INFO L93 Difference]: Finished difference Result 564 states and 804 transitions. [2024-11-09 04:58:53,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:58:53,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 81 [2024-11-09 04:58:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:58:53,704 INFO L225 Difference]: With dead ends: 564 [2024-11-09 04:58:53,704 INFO L226 Difference]: Without dead ends: 485 [2024-11-09 04:58:53,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 04:58:53,707 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 142 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:58:53,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 279 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:58:53,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-09 04:58:53,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 484. [2024-11-09 04:58:53,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 333 states have (on average 1.4234234234234233) internal successors, (474), 339 states have internal predecessors, (474), 115 states have call successors, (115), 37 states have call predecessors, (115), 35 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-09 04:58:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 702 transitions. [2024-11-09 04:58:53,887 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 702 transitions. Word has length 81 [2024-11-09 04:58:53,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:58:53,887 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 702 transitions. [2024-11-09 04:58:53,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 04:58:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 702 transitions. [2024-11-09 04:58:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 04:58:53,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:58:53,891 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:58:53,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 04:58:53,892 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:58:53,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:58:53,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1188920373, now seen corresponding path program 1 times [2024-11-09 04:58:53,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:58:53,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109376220] [2024-11-09 04:58:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:58:53,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:58:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:58:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 04:58:54,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:58:54,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109376220] [2024-11-09 04:58:54,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109376220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:58:54,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:58:54,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:58:54,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821444409] [2024-11-09 04:58:54,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:58:54,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 04:58:54,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:58:54,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 04:58:54,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:58:54,593 INFO L87 Difference]: Start difference. First operand 484 states and 702 transitions. Second operand has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 5 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-09 04:58:55,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:58:55,955 INFO L93 Difference]: Finished difference Result 923 states and 1319 transitions. [2024-11-09 04:58:55,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:58:55,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 5 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 126 [2024-11-09 04:58:55,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:58:55,963 INFO L225 Difference]: With dead ends: 923 [2024-11-09 04:58:55,963 INFO L226 Difference]: Without dead ends: 808 [2024-11-09 04:58:55,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:58:55,966 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 212 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:58:55,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1519 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 04:58:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-09 04:58:56,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 801. [2024-11-09 04:58:56,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 535 states have (on average 1.4373831775700934) internal successors, (769), 546 states have internal predecessors, (769), 204 states have call successors, (204), 65 states have call predecessors, (204), 61 states have return successors, (199), 195 states have call predecessors, (199), 199 states have call successors, (199) [2024-11-09 04:58:56,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1172 transitions. [2024-11-09 04:58:56,339 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1172 transitions. Word has length 126 [2024-11-09 04:58:56,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:58:56,341 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1172 transitions. [2024-11-09 04:58:56,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 5 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-09 04:58:56,341 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1172 transitions. [2024-11-09 04:58:56,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 04:58:56,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:58:56,348 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:58:56,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 04:58:56,349 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:58:56,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:58:56,349 INFO L85 PathProgramCache]: Analyzing trace with hash -483733505, now seen corresponding path program 1 times [2024-11-09 04:58:56,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:58:56,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286856684] [2024-11-09 04:58:56,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:58:56,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:58:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:58:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 04:58:56,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:58:56,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286856684] [2024-11-09 04:58:56,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286856684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:58:56,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:58:56,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:58:56,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256813766] [2024-11-09 04:58:56,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:58:56,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:58:56,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:58:56,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:58:56,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:58:56,848 INFO L87 Difference]: Start difference. First operand 801 states and 1172 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-09 04:58:57,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:58:57,896 INFO L93 Difference]: Finished difference Result 1094 states and 1523 transitions. [2024-11-09 04:58:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:58:57,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 121 [2024-11-09 04:58:57,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:58:57,905 INFO L225 Difference]: With dead ends: 1094 [2024-11-09 04:58:57,905 INFO L226 Difference]: Without dead ends: 916 [2024-11-09 04:58:57,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:58:57,908 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 197 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:58:57,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 410 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:58:57,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2024-11-09 04:58:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 908. [2024-11-09 04:58:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 591 states have (on average 1.4128595600676819) internal successors, (835), 610 states have internal predecessors, (835), 233 states have call successors, (233), 85 states have call predecessors, (233), 83 states have return successors, (231), 221 states have call predecessors, (231), 227 states have call successors, (231) [2024-11-09 04:58:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1299 transitions. [2024-11-09 04:58:58,334 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1299 transitions. Word has length 121 [2024-11-09 04:58:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:58:58,335 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1299 transitions. [2024-11-09 04:58:58,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-09 04:58:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1299 transitions. [2024-11-09 04:58:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 04:58:58,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:58:58,341 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:58:58,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 04:58:58,342 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:58:58,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:58:58,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2074778394, now seen corresponding path program 1 times [2024-11-09 04:58:58,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:58:58,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344028253] [2024-11-09 04:58:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:58:58,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:58:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:58:59,624 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 04:58:59,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:58:59,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344028253] [2024-11-09 04:58:59,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344028253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:58:59,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353472070] [2024-11-09 04:58:59,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:58:59,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:58:59,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:58:59,627 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:58:59,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 04:59:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:59:00,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:59:00,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:59:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-09 04:59:00,312 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:59:00,583 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 04:59:00,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353472070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:59:00,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [468912269] [2024-11-09 04:59:00,588 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2024-11-09 04:59:00,588 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:59:00,589 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:59:00,589 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:59:00,589 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:59:49,575 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 04:59:49,742 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 439 for LOIs [2024-11-09 04:59:51,101 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:00:18,155 WARN L286 SmtUtils]: Spent 9.29s on a formula simplification. DAG size of input: 439 DAG size of output: 439 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:00:29,922 WARN L286 SmtUtils]: Spent 11.01s on a formula simplification. DAG size of input: 463 DAG size of output: 458 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:01:24,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [468912269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:24,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:01:24,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [17, 5, 5] total 46 [2024-11-09 05:01:24,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356053665] [2024-11-09 05:01:24,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:24,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 05:01:24,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 05:01:24,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1889, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 05:01:24,537 INFO L87 Difference]: Start difference. First operand 908 states and 1299 transitions. Second operand has 27 states, 18 states have (on average 3.111111111111111) internal successors, (56), 17 states have internal predecessors, (56), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-09 05:01:39,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:39,862 INFO L93 Difference]: Finished difference Result 1786 states and 2601 transitions. [2024-11-09 05:01:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 05:01:39,863 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 3.111111111111111) internal successors, (56), 17 states have internal predecessors, (56), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 129 [2024-11-09 05:01:39,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:39,871 INFO L225 Difference]: With dead ends: 1786 [2024-11-09 05:01:39,871 INFO L226 Difference]: Without dead ends: 1011 [2024-11-09 05:01:39,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 97.1s TimeCoverageRelationStatistics Valid=188, Invalid=1974, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 05:01:39,875 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 78 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:39,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2777 Invalid, 2693 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2024-11-09 05:01:39,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2024-11-09 05:01:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 923. [2024-11-09 05:01:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 603 states have (on average 1.4145936981757876) internal successors, (853), 623 states have internal predecessors, (853), 235 states have call successors, (235), 86 states have call predecessors, (235), 84 states have return successors, (233), 222 states have call predecessors, (233), 229 states have call successors, (233) [2024-11-09 05:01:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1321 transitions. [2024-11-09 05:01:40,144 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1321 transitions. Word has length 129 [2024-11-09 05:01:40,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:40,145 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1321 transitions. [2024-11-09 05:01:40,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 3.111111111111111) internal successors, (56), 17 states have internal predecessors, (56), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-09 05:01:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1321 transitions. [2024-11-09 05:01:40,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 05:01:40,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:40,149 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:40,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:01:40,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:40,354 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:01:40,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:40,355 INFO L85 PathProgramCache]: Analyzing trace with hash -653505070, now seen corresponding path program 1 times [2024-11-09 05:01:40,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:40,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237198994] [2024-11-09 05:01:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:40,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 05:01:41,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:41,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237198994] [2024-11-09 05:01:41,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237198994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:41,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838533168] [2024-11-09 05:01:41,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:41,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:41,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:41,400 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:41,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae32fb6-a0ee-404c-a12c-cd2ad8baebca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:01:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:41,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:01:41,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:41,941 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-09 05:01:41,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:01:42,191 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 05:01:42,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838533168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:01:42,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1904860650] [2024-11-09 05:01:42,194 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2024-11-09 05:01:42,195 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:01:42,195 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:01:42,196 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:01:42,196 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs