./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ --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 5ce5fd5bda0c8594f52541a2ff1031f1544bc9165bf7645718c7801e066263fc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:48:11,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:48:11,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:48:11,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:48:11,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:48:11,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:48:11,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:48:11,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:48:11,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:48:11,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:48:11,438 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:48:11,439 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:48:11,439 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:48:11,441 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:48:11,442 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:48:11,442 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:48:11,443 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:48:11,443 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:48:11,444 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:48:11,444 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:48:11,445 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:48:11,445 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:48:11,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:48:11,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:48:11,447 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:48:11,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:48:11,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:48:11,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:48:11,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:48:11,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:48:11,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:48:11,451 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:48:11,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:48:11,452 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:48:11,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:48:11,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:48:11,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:11,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:48:11,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:48:11,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:48:11,454 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:48:11,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:48:11,455 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:48:11,455 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:48:11,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:48:11,456 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_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ce5fd5bda0c8594f52541a2ff1031f1544bc9165bf7645718c7801e066263fc [2023-11-19 04:48:11,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:48:11,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:48:11,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:48:11,764 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:48:11,765 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:48:11,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/email_spec0_product16.cil.c [2023-11-19 04:48:14,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:48:15,431 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:48:15,432 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c [2023-11-19 04:48:15,459 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/data/fd9c1aaaa/1770bd4c7ceb433f8830a9b2ada9b98d/FLAG0576552e2 [2023-11-19 04:48:15,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/data/fd9c1aaaa/1770bd4c7ceb433f8830a9b2ada9b98d [2023-11-19 04:48:15,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:48:15,484 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:48:15,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:15,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:48:15,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:48:15,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:15" (1/1) ... [2023-11-19 04:48:15,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f798312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:15, skipping insertion in model container [2023-11-19 04:48:15,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:15" (1/1) ... [2023-11-19 04:48:15,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:48:15,933 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_cdcbe8fe-0e9f-428b-978d-08346985dffc/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c[7449,7462] [2023-11-19 04:48:16,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:16,251 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:48:16,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-11-19 04:48:16,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [97] [2023-11-19 04:48:16,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [398] [2023-11-19 04:48:16,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [407] [2023-11-19 04:48:16,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [519] [2023-11-19 04:48:16,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [735] [2023-11-19 04:48:16,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1101] [2023-11-19 04:48:16,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2173] [2023-11-19 04:48:16,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2578] [2023-11-19 04:48:16,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2597] [2023-11-19 04:48:16,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2614] [2023-11-19 04:48:16,305 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_cdcbe8fe-0e9f-428b-978d-08346985dffc/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c[7449,7462] [2023-11-19 04:48:16,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:16,479 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:48:16,488 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:48:16,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16 WrapperNode [2023-11-19 04:48:16,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:16,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:16,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:48:16,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:48:16,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,563 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,656 INFO L138 Inliner]: procedures = 125, calls = 195, calls flagged for inlining = 55, calls inlined = 50, statements flattened = 981 [2023-11-19 04:48:16,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:16,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:48:16,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:48:16,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:48:16,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:48:16,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:48:16,779 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:48:16,779 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:48:16,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (1/1) ... [2023-11-19 04:48:16,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:16,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:16,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:48:16,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:48:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-19 04:48:16,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-19 04:48:16,877 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-19 04:48:16,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-19 04:48:16,877 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 04:48:16,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 04:48:16,878 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 04:48:16,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 04:48:16,880 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 04:48:16,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 04:48:16,880 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 04:48:16,880 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 04:48:16,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-19 04:48:16,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-19 04:48:16,882 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 04:48:16,882 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 04:48:16,885 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 04:48:16,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 04:48:16,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 04:48:16,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:48:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 04:48:16,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 04:48:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 04:48:16,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 04:48:16,887 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 04:48:16,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 04:48:16,888 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 04:48:16,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 04:48:16,888 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-19 04:48:16,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-19 04:48:16,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 04:48:16,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 04:48:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 04:48:16,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 04:48:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:48:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 04:48:16,889 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 04:48:16,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:48:16,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:48:17,135 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:48:17,138 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:48:18,107 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:48:18,766 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:48:18,766 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:48:18,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:18 BoogieIcfgContainer [2023-11-19 04:48:18,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:48:18,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:48:18,784 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:48:18,787 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:48:18,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:48:15" (1/3) ... [2023-11-19 04:48:18,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ed372d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:18, skipping insertion in model container [2023-11-19 04:48:18,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:16" (2/3) ... [2023-11-19 04:48:18,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ed372d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:18, skipping insertion in model container [2023-11-19 04:48:18,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:18" (3/3) ... [2023-11-19 04:48:18,791 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product16.cil.c [2023-11-19 04:48:18,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:48:18,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:48:18,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:48:18,889 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;@2546df92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:48:18,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:48:18,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 92 states have (on average 1.358695652173913) internal successors, (125), 96 states have internal predecessors, (125), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 04:48:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 04:48:18,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:18,913 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:48:18,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:48:18,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:18,921 INFO L85 PathProgramCache]: Analyzing trace with hash -528653064, now seen corresponding path program 1 times [2023-11-19 04:48:18,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:18,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286237968] [2023-11-19 04:48:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:18,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:48:19,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:19,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286237968] [2023-11-19 04:48:19,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286237968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:19,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:19,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:48:19,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789845490] [2023-11-19 04:48:19,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:19,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:48:19,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:19,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:48:19,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:48:19,419 INFO L87 Difference]: Start difference. First operand has 156 states, 92 states have (on average 1.358695652173913) internal successors, (125), 96 states have internal predecessors, (125), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:48:19,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:19,586 INFO L93 Difference]: Finished difference Result 229 states and 308 transitions. [2023-11-19 04:48:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:48:19,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 70 [2023-11-19 04:48:19,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:19,605 INFO L225 Difference]: With dead ends: 229 [2023-11-19 04:48:19,605 INFO L226 Difference]: Without dead ends: 153 [2023-11-19 04:48:19,610 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 [2023-11-19 04:48:19,614 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:19,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:48:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-19 04:48:19,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-11-19 04:48:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 93 states have internal predecessors, (119), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-19 04:48:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 208 transitions. [2023-11-19 04:48:19,691 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 208 transitions. Word has length 70 [2023-11-19 04:48:19,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:19,693 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 208 transitions. [2023-11-19 04:48:19,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:48:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 208 transitions. [2023-11-19 04:48:19,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-19 04:48:19,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:19,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:48:19,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:48:19,701 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:48:19,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:19,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1065174268, now seen corresponding path program 1 times [2023-11-19 04:48:19,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:19,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508582438] [2023-11-19 04:48:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:19,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:48:20,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:20,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508582438] [2023-11-19 04:48:20,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508582438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:20,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:20,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:48:20,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545370938] [2023-11-19 04:48:20,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:20,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:48:20,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:20,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:48:20,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:48:20,006 INFO L87 Difference]: Start difference. First operand 153 states and 208 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:48:20,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:20,139 INFO L93 Difference]: Finished difference Result 225 states and 296 transitions. [2023-11-19 04:48:20,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:48:20,140 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2023-11-19 04:48:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:20,142 INFO L225 Difference]: With dead ends: 225 [2023-11-19 04:48:20,143 INFO L226 Difference]: Without dead ends: 155 [2023-11-19 04:48:20,144 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 [2023-11-19 04:48:20,145 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:20,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:48:20,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-19 04:48:20,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-19 04:48:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 92 states have (on average 1.315217391304348) internal successors, (121), 95 states have internal predecessors, (121), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-19 04:48:20,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 210 transitions. [2023-11-19 04:48:20,174 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 210 transitions. Word has length 71 [2023-11-19 04:48:20,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:20,175 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 210 transitions. [2023-11-19 04:48:20,175 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:48:20,176 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 210 transitions. [2023-11-19 04:48:20,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 04:48:20,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:20,180 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:48:20,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:48:20,181 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:48:20,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:20,181 INFO L85 PathProgramCache]: Analyzing trace with hash 310801084, now seen corresponding path program 1 times [2023-11-19 04:48:20,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:20,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534247049] [2023-11-19 04:48:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:20,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:20,326 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:48:20,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:20,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534247049] [2023-11-19 04:48:20,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534247049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:20,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:20,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:48:20,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623510443] [2023-11-19 04:48:20,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:20,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:48:20,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:20,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:48:20,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:48:20,330 INFO L87 Difference]: Start difference. First operand 155 states and 210 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:48:20,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:20,425 INFO L93 Difference]: Finished difference Result 340 states and 479 transitions. [2023-11-19 04:48:20,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:48:20,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2023-11-19 04:48:20,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:20,429 INFO L225 Difference]: With dead ends: 340 [2023-11-19 04:48:20,429 INFO L226 Difference]: Without dead ends: 203 [2023-11-19 04:48:20,431 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 [2023-11-19 04:48:20,432 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 57 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:20,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 367 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:48:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-19 04:48:20,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 198. [2023-11-19 04:48:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 124 states have (on average 1.403225806451613) internal successors, (174), 127 states have internal predecessors, (174), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-19 04:48:20,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 285 transitions. [2023-11-19 04:48:20,471 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 285 transitions. Word has length 76 [2023-11-19 04:48:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:20,473 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 285 transitions. [2023-11-19 04:48:20,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:48:20,473 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 285 transitions. [2023-11-19 04:48:20,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-19 04:48:20,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:20,481 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:48:20,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:48:20,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:48:20,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:20,483 INFO L85 PathProgramCache]: Analyzing trace with hash -870075984, now seen corresponding path program 1 times [2023-11-19 04:48:20,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:20,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492356292] [2023-11-19 04:48:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:20,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:20,714 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:48:20,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:20,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492356292] [2023-11-19 04:48:20,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492356292] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:48:20,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829833023] [2023-11-19 04:48:20,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:20,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:48:20,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:20,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:48:20,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdcbe8fe-0e9f-428b-978d-08346985dffc/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:48:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:21,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:48:21,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:48:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:48:21,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:48:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:48:21,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829833023] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:48:21,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2144712380] [2023-11-19 04:48:21,240 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2023-11-19 04:48:21,240 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:48:21,244 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:48:21,249 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:48:21,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:49:03,098 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-11-19 04:49:03,265 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-11-19 04:49:03,463 INFO L180 IcfgInterpreter]: Interpretation finished