./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product26.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_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/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_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/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_2ffdd10c-9489-45ea-be07-e01b54011993/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 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:47:17,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:47:17,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:47:17,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:47:17,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:47:17,315 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:47:17,316 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:47:17,316 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:47:17,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:47:17,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:47:17,319 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:47:17,319 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:47:17,320 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:47:17,321 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:47:17,321 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:47:17,322 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:47:17,322 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:47:17,323 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:47:17,323 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:47:17,324 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:47:17,325 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:47:17,325 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:47:17,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:47:17,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:47:17,327 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:47:17,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:47:17,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:47:17,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:47:17,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:47:17,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:47:17,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:47:17,352 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:47:17,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:47:17,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:47:17,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:47:17,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:47:17,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:17,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:47:17,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:47:17,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:47:17,355 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:47:17,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:47:17,356 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:47:17,356 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:47:17,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:47:17,357 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_2ffdd10c-9489-45ea-be07-e01b54011993/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 [2023-11-19 04:47:17,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:47:17,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:47:17,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:47:17,629 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:47:17,629 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:47:17,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2023-11-19 04:47:20,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:47:21,100 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:47:21,101 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2023-11-19 04:47:21,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/data/dcc59d09d/6a50f7b69ad44491be34ce1a6c7afd04/FLAGbe85acd15 [2023-11-19 04:47:21,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/data/dcc59d09d/6a50f7b69ad44491be34ce1a6c7afd04 [2023-11-19 04:47:21,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:47:21,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:47:21,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:21,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:47:21,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:47:21,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:21" (1/1) ... [2023-11-19 04:47:21,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8a56d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:21, skipping insertion in model container [2023-11-19 04:47:21,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:21" (1/1) ... [2023-11-19 04:47:21,243 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:47:21,868 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_2ffdd10c-9489-45ea-be07-e01b54011993/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2023-11-19 04:47:22,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:22,061 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:47:22,071 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-19 04:47:22,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [392] [2023-11-19 04:47:22,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [504] [2023-11-19 04:47:22,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [855] [2023-11-19 04:47:22,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [890] [2023-11-19 04:47:22,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1112] [2023-11-19 04:47:22,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1121] [2023-11-19 04:47:22,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2181] [2023-11-19 04:47:22,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [2198] [2023-11-19 04:47:22,076 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2226] [2023-11-19 04:47:22,076 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2629] [2023-11-19 04:47:22,108 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_2ffdd10c-9489-45ea-be07-e01b54011993/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2023-11-19 04:47:22,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:22,199 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:47:22,207 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:47:22,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22 WrapperNode [2023-11-19 04:47:22,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:22,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:22,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:47:22,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:47:22,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,331 INFO L138 Inliner]: procedures = 131, calls = 225, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1105 [2023-11-19 04:47:22,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:22,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:47:22,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:47:22,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:47:22,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:47:22,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:47:22,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:47:22,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:47:22,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (1/1) ... [2023-11-19 04:47:22,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:22,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:47:22,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:47:22,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:47:22,581 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-19 04:47:22,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-19 04:47:22,581 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-19 04:47:22,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-19 04:47:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-19 04:47:22,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-19 04:47:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-19 04:47:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-19 04:47:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 04:47:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 04:47:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-19 04:47:22,585 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-19 04:47:22,586 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 04:47:22,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 04:47:22,586 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 04:47:22,586 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 04:47:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-19 04:47:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-19 04:47:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 04:47:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 04:47:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 04:47:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 04:47:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 04:47:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-19 04:47:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-19 04:47:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 04:47:22,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 04:47:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:47:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-19 04:47:22,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-19 04:47:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 04:47:22,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 04:47:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 04:47:22,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 04:47:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 04:47:22,591 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 04:47:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 04:47:22,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 04:47:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-19 04:47:22,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-19 04:47:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 04:47:22,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 04:47:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 04:47:22,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 04:47:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:47:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 04:47:22,592 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 04:47:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-19 04:47:22,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-19 04:47:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:47:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:47:22,849 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:47:22,851 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:47:23,806 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:47:24,548 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:47:24,548 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:47:24,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:24 BoogieIcfgContainer [2023-11-19 04:47:24,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:47:24,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:47:24,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:47:24,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:47:24,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:47:21" (1/3) ... [2023-11-19 04:47:24,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ac82c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:24, skipping insertion in model container [2023-11-19 04:47:24,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:22" (2/3) ... [2023-11-19 04:47:24,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ac82c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:24, skipping insertion in model container [2023-11-19 04:47:24,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:24" (3/3) ... [2023-11-19 04:47:24,568 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2023-11-19 04:47:24,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:47:24,589 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:47:24,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:47:24,659 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;@74020115, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:47:24,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:47:24,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-19 04:47:24,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 04:47:24,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:24,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:24,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:24,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash 240088237, now seen corresponding path program 1 times [2023-11-19 04:47:24,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:24,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622483433] [2023-11-19 04:47:24,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:24,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:47:25,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:25,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622483433] [2023-11-19 04:47:25,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622483433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:25,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:25,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:47:25,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836364841] [2023-11-19 04:47:25,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:25,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:47:25,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:25,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:47:25,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:47:25,202 INFO L87 Difference]: Start difference. First operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 04:47:25,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:25,370 INFO L93 Difference]: Finished difference Result 308 states and 417 transitions. [2023-11-19 04:47:25,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:47:25,372 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2023-11-19 04:47:25,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:25,388 INFO L225 Difference]: With dead ends: 308 [2023-11-19 04:47:25,388 INFO L226 Difference]: Without dead ends: 197 [2023-11-19 04:47:25,398 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 04:47:25,405 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:25,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-19 04:47:25,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2023-11-19 04:47:25,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 115 states have internal predecessors, (143), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-19 04:47:25,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 266 transitions. [2023-11-19 04:47:25,495 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 266 transitions. Word has length 63 [2023-11-19 04:47:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:25,496 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 266 transitions. [2023-11-19 04:47:25,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 04:47:25,497 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 266 transitions. [2023-11-19 04:47:25,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 04:47:25,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:25,502 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:25,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:47:25,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:25,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:25,503 INFO L85 PathProgramCache]: Analyzing trace with hash 919550111, now seen corresponding path program 1 times [2023-11-19 04:47:25,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:25,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011217907] [2023-11-19 04:47:25,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:25,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:47:25,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:25,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011217907] [2023-11-19 04:47:25,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011217907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:25,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:25,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:47:25,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686715856] [2023-11-19 04:47:25,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:25,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:47:25,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:25,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:47:25,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:25,711 INFO L87 Difference]: Start difference. First operand 197 states and 266 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 04:47:25,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:25,828 INFO L93 Difference]: Finished difference Result 304 states and 402 transitions. [2023-11-19 04:47:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:47:25,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2023-11-19 04:47:25,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:25,832 INFO L225 Difference]: With dead ends: 304 [2023-11-19 04:47:25,832 INFO L226 Difference]: Without dead ends: 199 [2023-11-19 04:47:25,833 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 04:47:25,835 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:25,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:25,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-19 04:47:25,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2023-11-19 04:47:25,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 117 states have internal predecessors, (145), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-19 04:47:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 268 transitions. [2023-11-19 04:47:25,887 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 268 transitions. Word has length 64 [2023-11-19 04:47:25,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:25,888 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 268 transitions. [2023-11-19 04:47:25,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 04:47:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 268 transitions. [2023-11-19 04:47:25,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 04:47:25,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:25,899 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:25,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:47:25,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:25,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:25,906 INFO L85 PathProgramCache]: Analyzing trace with hash -341330821, now seen corresponding path program 1 times [2023-11-19 04:47:25,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:25,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222792396] [2023-11-19 04:47:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:25,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:47:26,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:26,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222792396] [2023-11-19 04:47:26,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222792396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:26,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:26,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:47:26,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967969227] [2023-11-19 04:47:26,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:26,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:47:26,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:26,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:47:26,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:26,117 INFO L87 Difference]: Start difference. First operand 199 states and 268 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 04:47:26,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:26,286 INFO L93 Difference]: Finished difference Result 433 states and 603 transitions. [2023-11-19 04:47:26,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:47:26,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2023-11-19 04:47:26,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:26,290 INFO L225 Difference]: With dead ends: 433 [2023-11-19 04:47:26,290 INFO L226 Difference]: Without dead ends: 252 [2023-11-19 04:47:26,295 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 04:47:26,298 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 59 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:26,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 464 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-19 04:47:26,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2023-11-19 04:47:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 151 states have internal predecessors, (200), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-19 04:47:26,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 351 transitions. [2023-11-19 04:47:26,346 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 351 transitions. Word has length 69 [2023-11-19 04:47:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:26,348 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 351 transitions. [2023-11-19 04:47:26,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 04:47:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 351 transitions. [2023-11-19 04:47:26,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 04:47:26,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:26,356 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:26,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:47:26,356 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:26,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1392267279, now seen corresponding path program 1 times [2023-11-19 04:47:26,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:26,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686521295] [2023-11-19 04:47:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:26,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:26,615 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:47:26,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:26,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686521295] [2023-11-19 04:47:26,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686521295] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:47:26,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852023006] [2023-11-19 04:47:26,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:26,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:47:26,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:47:26,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:47:26,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffdd10c-9489-45ea-be07-e01b54011993/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:47:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:26,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:47:26,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:47:27,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:47:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:47:27,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852023006] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:47:27,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [743450712] [2023-11-19 04:47:27,166 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-11-19 04:47:27,167 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:47:27,170 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:47:27,176 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:47:27,176 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:48:17,922 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-11-19 04:48:18,097 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-11-19 04:48:18,328 INFO L180 IcfgInterpreter]: Interpretation finished