./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product30.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_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/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_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/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_add9b1bc-4b5d-48d2-933a-251803bb6e8b/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 e4fb36b23f327758af91661b12ca1735faf7949901dbd5c1543c17ea0384ceb9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:13:35,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:13:35,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:13:35,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:13:35,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:13:35,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:13:35,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:13:35,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:13:35,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:13:35,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:13:35,697 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:13:35,698 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:13:35,698 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:13:35,699 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:13:35,702 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:13:35,703 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:13:35,705 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:13:35,709 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:13:35,710 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:13:35,710 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:13:35,713 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:13:35,713 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:13:35,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:13:35,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:13:35,716 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:13:35,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:13:35,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:13:35,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:13:35,718 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:13:35,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:13:35,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:13:35,720 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:13:35,720 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:13:35,721 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:13:35,721 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:13:35,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:13:35,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:35,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:13:35,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:13:35,723 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:13:35,723 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:13:35,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:13:35,724 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:13:35,724 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:13:35,725 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:13:35,725 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_add9b1bc-4b5d-48d2-933a-251803bb6e8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4fb36b23f327758af91661b12ca1735faf7949901dbd5c1543c17ea0384ceb9 [2023-11-19 05:13:36,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:13:36,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:13:36,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:13:36,122 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:13:36,122 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:13:36,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/email_spec11_product30.cil.c [2023-11-19 05:13:39,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:13:39,641 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:13:39,641 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/sv-benchmarks/c/product-lines/email_spec11_product30.cil.c [2023-11-19 05:13:39,667 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/data/e48c9778b/92b022a712054e75a9d25317105325a1/FLAG57695f0b6 [2023-11-19 05:13:39,780 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/data/e48c9778b/92b022a712054e75a9d25317105325a1 [2023-11-19 05:13:39,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:13:39,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:13:39,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:39,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:13:39,799 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:13:39,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:39" (1/1) ... [2023-11-19 05:13:39,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a5ac7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:39, skipping insertion in model container [2023-11-19 05:13:39,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:39" (1/1) ... [2023-11-19 05:13:39,881 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:13:40,449 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_add9b1bc-4b5d-48d2-933a-251803bb6e8b/sv-benchmarks/c/product-lines/email_spec11_product30.cil.c[29507,29520] [2023-11-19 05:13:40,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:40,566 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:13:40,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2023-11-19 05:13:40,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [443] [2023-11-19 05:13:40,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [668] [2023-11-19 05:13:40,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [685] [2023-11-19 05:13:40,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [705] [2023-11-19 05:13:40,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1104] [2023-11-19 05:13:40,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1240] [2023-11-19 05:13:40,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1278] [2023-11-19 05:13:40,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1560] [2023-11-19 05:13:40,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1569] [2023-11-19 05:13:40,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1935] [2023-11-19 05:13:40,686 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_add9b1bc-4b5d-48d2-933a-251803bb6e8b/sv-benchmarks/c/product-lines/email_spec11_product30.cil.c[29507,29520] [2023-11-19 05:13:40,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:40,818 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:13:40,824 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:13:40,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40 WrapperNode [2023-11-19 05:13:40,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:40,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:40,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:13:40,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:13:40,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:40,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:40,946 INFO L138 Inliner]: procedures = 131, calls = 217, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 913 [2023-11-19 05:13:40,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:40,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:13:40,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:13:40,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:13:40,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:40,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:40,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:40,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:40,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:40,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:41,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:41,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:41,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:13:41,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:13:41,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:13:41,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:13:41,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (1/1) ... [2023-11-19 05:13:41,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:41,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:41,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:13:41,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:13:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-19 05:13:41,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-19 05:13:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-19 05:13:41,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-19 05:13:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-19 05:13:41,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-19 05:13:41,102 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 05:13:41,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 05:13:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 05:13:41,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 05:13:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 05:13:41,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 05:13:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 05:13:41,103 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 05:13:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-19 05:13:41,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-19 05:13:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-19 05:13:41,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-19 05:13:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 05:13:41,104 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 05:13:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 05:13:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 05:13:41,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 05:13:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 05:13:41,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 05:13:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:13:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-19 05:13:41,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-19 05:13:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-19 05:13:41,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-19 05:13:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 05:13:41,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 05:13:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 05:13:41,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 05:13:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 05:13:41,107 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 05:13:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-19 05:13:41,107 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-19 05:13:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 05:13:41,107 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 05:13:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-19 05:13:41,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-19 05:13:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 05:13:41,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 05:13:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 05:13:41,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 05:13:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:13:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 05:13:41,108 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 05:13:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:13:41,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:13:41,342 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:13:41,344 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:13:42,128 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:13:42,772 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:13:42,772 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:13:42,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:42 BoogieIcfgContainer [2023-11-19 05:13:42,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:13:42,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:13:42,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:13:42,796 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:13:42,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:13:39" (1/3) ... [2023-11-19 05:13:42,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e4811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:42, skipping insertion in model container [2023-11-19 05:13:42,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:40" (2/3) ... [2023-11-19 05:13:42,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e4811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:42, skipping insertion in model container [2023-11-19 05:13:42,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:42" (3/3) ... [2023-11-19 05:13:42,801 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product30.cil.c [2023-11-19 05:13:42,825 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:13:42,825 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:13:42,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:13:42,924 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;@1458ecf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:13:42,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:13:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 109 states have (on average 1.3302752293577982) internal successors, (145), 113 states have internal predecessors, (145), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-19 05:13:42,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 05:13:42,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:42,962 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:42,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:42,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:42,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1578373108, now seen corresponding path program 1 times [2023-11-19 05:13:42,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:42,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795881862] [2023-11-19 05:13:42,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:42,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 05:13:43,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:43,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795881862] [2023-11-19 05:13:43,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795881862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:43,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:43,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:13:43,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962407165] [2023-11-19 05:13:43,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:43,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:13:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:43,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:13:43,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:13:43,650 INFO L87 Difference]: Start difference. First operand has 186 states, 109 states have (on average 1.3302752293577982) internal successors, (145), 113 states have internal predecessors, (145), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:13:43,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:43,881 INFO L93 Difference]: Finished difference Result 289 states and 376 transitions. [2023-11-19 05:13:43,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:13:43,885 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2023-11-19 05:13:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:43,903 INFO L225 Difference]: With dead ends: 289 [2023-11-19 05:13:43,905 INFO L226 Difference]: Without dead ends: 183 [2023-11-19 05:13:43,912 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 05:13:43,917 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:43,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:13:43,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-19 05:13:44,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-19 05:13:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 107 states have (on average 1.2990654205607477) internal successors, (139), 110 states have internal predecessors, (139), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-19 05:13:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 242 transitions. [2023-11-19 05:13:44,013 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 242 transitions. Word has length 88 [2023-11-19 05:13:44,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:44,016 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 242 transitions. [2023-11-19 05:13:44,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:13:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 242 transitions. [2023-11-19 05:13:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 05:13:44,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:44,027 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:44,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:13:44,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:44,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:44,029 INFO L85 PathProgramCache]: Analyzing trace with hash -892754081, now seen corresponding path program 1 times [2023-11-19 05:13:44,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:44,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980514315] [2023-11-19 05:13:44,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:44,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:44,440 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 05:13:44,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:44,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980514315] [2023-11-19 05:13:44,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980514315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:44,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:44,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:13:44,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548713067] [2023-11-19 05:13:44,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:44,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:44,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:44,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:44,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:13:44,446 INFO L87 Difference]: Start difference. First operand 183 states and 242 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:13:44,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:44,650 INFO L93 Difference]: Finished difference Result 285 states and 364 transitions. [2023-11-19 05:13:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:13:44,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2023-11-19 05:13:44,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:44,655 INFO L225 Difference]: With dead ends: 285 [2023-11-19 05:13:44,655 INFO L226 Difference]: Without dead ends: 185 [2023-11-19 05:13:44,657 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 05:13:44,659 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:44,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 417 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:13:44,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-19 05:13:44,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-11-19 05:13:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 112 states have internal predecessors, (141), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-19 05:13:44,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 244 transitions. [2023-11-19 05:13:44,686 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 244 transitions. Word has length 89 [2023-11-19 05:13:44,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:44,686 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 244 transitions. [2023-11-19 05:13:44,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:13:44,687 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 244 transitions. [2023-11-19 05:13:44,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 05:13:44,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:44,691 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:44,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:13:44,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:44,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:44,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1578330512, now seen corresponding path program 1 times [2023-11-19 05:13:44,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:44,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082185538] [2023-11-19 05:13:44,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:44,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:44,895 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 05:13:44,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:44,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082185538] [2023-11-19 05:13:44,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082185538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:44,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:44,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:13:44,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780595365] [2023-11-19 05:13:44,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:44,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:44,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:44,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:44,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:13:44,904 INFO L87 Difference]: Start difference. First operand 185 states and 244 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:13:45,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:45,088 INFO L93 Difference]: Finished difference Result 400 states and 547 transitions. [2023-11-19 05:13:45,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:13:45,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 94 [2023-11-19 05:13:45,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:45,092 INFO L225 Difference]: With dead ends: 400 [2023-11-19 05:13:45,093 INFO L226 Difference]: Without dead ends: 233 [2023-11-19 05:13:45,095 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 05:13:45,097 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 57 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:45,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 417 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:13:45,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-19 05:13:45,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2023-11-19 05:13:45,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 141 states have (on average 1.375886524822695) internal successors, (194), 144 states have internal predecessors, (194), 63 states have call successors, (63), 23 states have call predecessors, (63), 23 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-19 05:13:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 319 transitions. [2023-11-19 05:13:45,128 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 319 transitions. Word has length 94 [2023-11-19 05:13:45,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:45,129 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 319 transitions. [2023-11-19 05:13:45,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:13:45,130 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 319 transitions. [2023-11-19 05:13:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 05:13:45,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:45,133 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:45,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:13:45,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:45,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:45,134 INFO L85 PathProgramCache]: Analyzing trace with hash -294591937, now seen corresponding path program 1 times [2023-11-19 05:13:45,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:45,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343525834] [2023-11-19 05:13:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:45,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 05:13:45,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:45,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343525834] [2023-11-19 05:13:45,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343525834] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:13:45,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677224551] [2023-11-19 05:13:45,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:45,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:13:45,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:45,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:13:45,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add9b1bc-4b5d-48d2-933a-251803bb6e8b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:13:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:45,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:13:45,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 05:13:46,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 05:13:46,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677224551] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:13:46,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [290007283] [2023-11-19 05:13:46,143 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2023-11-19 05:13:46,144 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:13:46,152 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:13:46,158 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:13:46,158 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:14:32,429 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-11-19 05:14:32,617 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-11-19 05:14:32,828 INFO L180 IcfgInterpreter]: Interpretation finished