./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fd6d1c71ba5dc2d3b9a29abb89e94ab4329c839d1f475ee44ea6eb34f32fbde --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:36,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:36,348 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:16:36,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:36,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:36,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:36,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:36,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:36,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:36,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:36,385 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:36,386 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:36,387 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:36,387 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:36,388 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:36,388 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:36,389 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:36,389 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:36,390 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:36,390 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:36,391 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:36,392 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:36,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:36,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:36,393 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:36,394 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:36,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:36,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:36,395 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:36,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:36,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:36,397 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:36,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:36,397 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:36,398 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:36,398 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:36,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:36,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:36,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:36,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:36,400 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:36,402 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:36,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:36,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:36,403 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:36,403 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:36,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:36,403 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_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd6d1c71ba5dc2d3b9a29abb89e94ab4329c839d1f475ee44ea6eb34f32fbde [2023-11-23 21:16:36,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:36,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:36,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:36,716 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:36,717 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:36,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec7_product25.cil.c [2023-11-23 21:16:39,935 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:40,282 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:40,283 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/sv-benchmarks/c/product-lines/email_spec7_product25.cil.c [2023-11-23 21:16:40,319 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/data/59d03a4bc/feaa55d1c2a94e4eb4491505c009896a/FLAG8369591f8 [2023-11-23 21:16:40,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/data/59d03a4bc/feaa55d1c2a94e4eb4491505c009896a [2023-11-23 21:16:40,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:40,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:40,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:40,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:40,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:40,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:40" (1/1) ... [2023-11-23 21:16:40,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60209cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:40, skipping insertion in model container [2023-11-23 21:16:40,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:40" (1/1) ... [2023-11-23 21:16:40,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:40,812 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/sv-benchmarks/c/product-lines/email_spec7_product25.cil.c[8804,8817] [2023-11-23 21:16:41,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:41,173 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:41,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2023-11-23 21:16:41,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [417] [2023-11-23 21:16:41,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [455] [2023-11-23 21:16:41,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [464] [2023-11-23 21:16:41,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [481] [2023-11-23 21:16:41,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [710] [2023-11-23 21:16:41,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [728] [2023-11-23 21:16:41,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1800] [2023-11-23 21:16:41,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2088] [2023-11-23 21:16:41,220 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2454] [2023-11-23 21:16:41,220 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2857] [2023-11-23 21:16:41,249 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/sv-benchmarks/c/product-lines/email_spec7_product25.cil.c[8804,8817] [2023-11-23 21:16:41,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:41,461 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:41,469 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:41,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41 WrapperNode [2023-11-23 21:16:41,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:41,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:41,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:41,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:41,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,600 INFO L138 Inliner]: procedures = 130, calls = 215, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1079 [2023-11-23 21:16:41,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:41,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:41,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:41,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:41,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:41,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:41,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:41,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:41,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (1/1) ... [2023-11-23 21:16:41,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:41,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:41,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:41,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-23 21:16:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-23 21:16:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-23 21:16:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-23 21:16:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-11-23 21:16:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-11-23 21:16:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:16:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:16:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:16:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:16:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 21:16:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 21:16:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:16:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:16:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-23 21:16:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-23 21:16:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:16:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:16:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:16:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 21:16:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 21:16:41,798 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:16:41,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:16:41,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:41,798 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-23 21:16:41,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-23 21:16:41,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-23 21:16:41,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-23 21:16:41,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:16:41,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:16:41,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:16:41,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:16:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:16:41,800 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:16:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:16:41,800 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:16:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:16:41,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:16:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:16:41,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:16:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:16:41,801 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:16:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-23 21:16:41,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-23 21:16:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:41,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:42,055 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:42,058 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:43,139 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:43,898 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:43,899 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:43,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:43 BoogieIcfgContainer [2023-11-23 21:16:43,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:43,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:43,904 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:43,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:43,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:40" (1/3) ... [2023-11-23 21:16:43,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555e3225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:43, skipping insertion in model container [2023-11-23 21:16:43,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:41" (2/3) ... [2023-11-23 21:16:43,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555e3225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:43, skipping insertion in model container [2023-11-23 21:16:43,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:43" (3/3) ... [2023-11-23 21:16:43,913 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product25.cil.c [2023-11-23 21:16:43,936 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:43,936 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:44,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:44,012 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69c01880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:44,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:44,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 106 states have internal predecessors, (136), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-23 21:16:44,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 21:16:44,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:44,037 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:44,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:44,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:44,045 INFO L85 PathProgramCache]: Analyzing trace with hash -117457629, now seen corresponding path program 1 times [2023-11-23 21:16:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:44,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642403293] [2023-11-23 21:16:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:44,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:16:44,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:44,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642403293] [2023-11-23 21:16:44,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642403293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:44,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:44,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:44,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013645252] [2023-11-23 21:16:44,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:44,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:16:44,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:44,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:16:44,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:16:44,515 INFO L87 Difference]: Start difference. First operand has 180 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 106 states have internal predecessors, (136), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2023-11-23 21:16:44,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:44,642 INFO L93 Difference]: Finished difference Result 268 states and 359 transitions. [2023-11-23 21:16:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:16:44,650 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 60 [2023-11-23 21:16:44,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:44,662 INFO L225 Difference]: With dead ends: 268 [2023-11-23 21:16:44,665 INFO L226 Difference]: Without dead ends: 177 [2023-11-23 21:16:44,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:16:44,679 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:44,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:44,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-23 21:16:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-23 21:16:44,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 103 states have internal predecessors, (130), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-23 21:16:44,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 237 transitions. [2023-11-23 21:16:44,793 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 237 transitions. Word has length 60 [2023-11-23 21:16:44,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:44,795 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 237 transitions. [2023-11-23 21:16:44,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2023-11-23 21:16:44,796 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 237 transitions. [2023-11-23 21:16:44,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 21:16:44,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:44,807 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:44,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:44,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:44,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:44,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1677285388, now seen corresponding path program 1 times [2023-11-23 21:16:44,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:44,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088705882] [2023-11-23 21:16:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:44,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:45,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:16:45,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:45,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088705882] [2023-11-23 21:16:45,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088705882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:45,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:45,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:45,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304341261] [2023-11-23 21:16:45,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:45,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:45,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:45,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:45,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:45,105 INFO L87 Difference]: Start difference. First operand 177 states and 237 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (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) [2023-11-23 21:16:45,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:45,221 INFO L93 Difference]: Finished difference Result 264 states and 344 transitions. [2023-11-23 21:16:45,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:45,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (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 61 [2023-11-23 21:16:45,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:45,226 INFO L225 Difference]: With dead ends: 264 [2023-11-23 21:16:45,226 INFO L226 Difference]: Without dead ends: 179 [2023-11-23 21:16:45,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:45,228 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:45,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 401 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:45,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-23 21:16:45,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-23 21:16:45,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 103 states have (on average 1.2815533980582525) internal successors, (132), 105 states have internal predecessors, (132), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-23 21:16:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2023-11-23 21:16:45,249 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 61 [2023-11-23 21:16:45,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:45,249 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2023-11-23 21:16:45,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (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) [2023-11-23 21:16:45,250 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2023-11-23 21:16:45,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-23 21:16:45,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:45,253 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:45,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:16:45,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:45,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:45,254 INFO L85 PathProgramCache]: Analyzing trace with hash 618162360, now seen corresponding path program 1 times [2023-11-23 21:16:45,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:45,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323268171] [2023-11-23 21:16:45,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:45,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:16:45,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:45,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323268171] [2023-11-23 21:16:45,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323268171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:45,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:45,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:45,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153523368] [2023-11-23 21:16:45,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:45,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:45,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:45,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:45,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:45,377 INFO L87 Difference]: Start difference. First operand 179 states and 239 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-11-23 21:16:45,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:45,493 INFO L93 Difference]: Finished difference Result 393 states and 545 transitions. [2023-11-23 21:16:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:45,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 66 [2023-11-23 21:16:45,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:45,497 INFO L225 Difference]: With dead ends: 393 [2023-11-23 21:16:45,497 INFO L226 Difference]: Without dead ends: 232 [2023-11-23 21:16:45,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:45,500 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 59 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:45,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 403 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:45,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-11-23 21:16:45,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 227. [2023-11-23 21:16:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 137 states have (on average 1.364963503649635) internal successors, (187), 139 states have internal predecessors, (187), 68 states have call successors, (68), 21 states have call predecessors, (68), 21 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-23 21:16:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 322 transitions. [2023-11-23 21:16:45,524 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 322 transitions. Word has length 66 [2023-11-23 21:16:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:45,525 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 322 transitions. [2023-11-23 21:16:45,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-11-23 21:16:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 322 transitions. [2023-11-23 21:16:45,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 21:16:45,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:45,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:45,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:16:45,529 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:45,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:45,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1080287190, now seen corresponding path program 1 times [2023-11-23 21:16:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:45,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80724837] [2023-11-23 21:16:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:16:45,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80724837] [2023-11-23 21:16:45,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80724837] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:16:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500857902] [2023-11-23 21:16:45,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:45,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:45,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:45,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:45,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d2538f-b822-462b-bd05-a7f213c16c1c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:16:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:46,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:16:46,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:16:46,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:16:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:16:46,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500857902] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:16:46,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1142461780] [2023-11-23 21:16:46,384 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2023-11-23 21:16:46,384 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:16:46,388 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:16:46,397 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:16:46,397 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs