./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5711b4c0ea669ac051f0ad97dbc3a1a473a1622b7d95c937325001ba5ca1073b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:41,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:41,184 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:18:41,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:41,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:41,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:41,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:41,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:41,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:41,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:41,227 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:41,228 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:41,229 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:41,230 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:41,235 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:41,236 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:41,237 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:41,239 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:41,240 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:41,241 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:41,242 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:41,242 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:41,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:41,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:41,245 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:18:41,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:41,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:18:41,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:41,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:41,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:41,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:41,251 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:18:41,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:41,252 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:41,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:41,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:41,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:41,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:41,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:41,254 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:41,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:41,255 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:41,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:41,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:41,257 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:41,257 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:41,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:41,258 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_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5711b4c0ea669ac051f0ad97dbc3a1a473a1622b7d95c937325001ba5ca1073b [2023-11-23 21:18:41,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:41,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:41,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:41,661 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:41,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:41,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c [2023-11-23 21:18:45,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:45,656 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:45,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c [2023-11-23 21:18:45,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/data/c94a7bb73/013a9f5989be4d849870d9539a785d8b/FLAG0daabe7bb [2023-11-23 21:18:45,720 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/data/c94a7bb73/013a9f5989be4d849870d9539a785d8b [2023-11-23 21:18:45,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:45,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:45,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:45,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:45,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:45,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b0ec61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45, skipping insertion in model container [2023-11-23 21:18:45,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,938 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:46,343 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_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c[32699,32712] [2023-11-23 21:18:46,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:46,579 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:46,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-11-23 21:18:46,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [97] [2023-11-23 21:18:46,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1177] [2023-11-23 21:18:46,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1484] [2023-11-23 21:18:46,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1493] [2023-11-23 21:18:46,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1641] [2023-11-23 21:18:46,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2046] [2023-11-23 21:18:46,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2073] [2023-11-23 21:18:46,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2090] [2023-11-23 21:18:46,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2456] [2023-11-23 21:18:46,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2675] [2023-11-23 21:18:46,656 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_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c[32699,32712] [2023-11-23 21:18:46,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:46,777 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:46,786 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:46,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46 WrapperNode [2023-11-23 21:18:46,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:46,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:46,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:46,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:46,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:46,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:46,917 INFO L138 Inliner]: procedures = 134, calls = 237, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 997 [2023-11-23 21:18:46,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:46,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:46,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:46,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:46,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:46,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:46,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:46,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:46,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:46,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:46,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:47,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:47,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:47,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:47,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:47,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:47,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (1/1) ... [2023-11-23 21:18:47,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:47,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:47,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:47,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-23 21:18:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-23 21:18:47,154 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-23 21:18:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-23 21:18:47,156 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 21:18:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 21:18:47,157 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-23 21:18:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-23 21:18:47,157 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 21:18:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 21:18:47,159 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:18:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:18:47,160 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-23 21:18:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-23 21:18:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:18:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:18:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 21:18:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 21:18:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:18:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:18:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 21:18:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 21:18:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-23 21:18:47,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-23 21:18:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:18:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:18:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:18:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 21:18:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 21:18:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:18:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:18:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-23 21:18:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-23 21:18:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-23 21:18:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-23 21:18:47,170 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-23 21:18:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-23 21:18:47,170 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:18:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:18:47,171 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:18:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:18:47,171 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:18:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:18:47,172 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-23 21:18:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-23 21:18:47,173 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:18:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:18:47,175 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 21:18:47,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 21:18:47,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:18:47,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:18:47,176 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:18:47,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:18:47,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:18:47,177 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:18:47,177 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:18:47,177 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-23 21:18:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-23 21:18:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:47,528 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:47,534 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:48,736 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:49,577 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:49,577 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:18:49,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:49 BoogieIcfgContainer [2023-11-23 21:18:49,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:49,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:49,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:49,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:49,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:45" (1/3) ... [2023-11-23 21:18:49,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afabe5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:49, skipping insertion in model container [2023-11-23 21:18:49,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:46" (2/3) ... [2023-11-23 21:18:49,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afabe5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:49, skipping insertion in model container [2023-11-23 21:18:49,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:49" (3/3) ... [2023-11-23 21:18:49,592 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product32.cil.c [2023-11-23 21:18:49,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:49,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:18:49,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:49,682 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;@3acab285, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:49,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:18:49,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 129 states have internal predecessors, (162), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-23 21:18:49,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 21:18:49,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:49,711 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, 1, 1, 1, 1, 1] [2023-11-23 21:18:49,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:49,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:49,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1776042197, now seen corresponding path program 1 times [2023-11-23 21:18:49,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:49,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801349256] [2023-11-23 21:18:49,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:49,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 21:18:50,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801349256] [2023-11-23 21:18:50,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801349256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:50,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:50,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:18:50,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142312344] [2023-11-23 21:18:50,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:50,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:18:50,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:50,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:18:50,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:18:50,261 INFO L87 Difference]: Start difference. First operand has 219 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 129 states have internal predecessors, (162), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 21:18:50,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:50,459 INFO L93 Difference]: Finished difference Result 346 states and 455 transitions. [2023-11-23 21:18:50,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:18:50,462 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 75 [2023-11-23 21:18:50,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:50,511 INFO L225 Difference]: With dead ends: 346 [2023-11-23 21:18:50,512 INFO L226 Difference]: Without dead ends: 216 [2023-11-23 21:18:50,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:18:50,527 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:50,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:18:50,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-23 21:18:50,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2023-11-23 21:18:50,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 122 states have (on average 1.278688524590164) internal successors, (156), 126 states have internal predecessors, (156), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-23 21:18:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 285 transitions. [2023-11-23 21:18:50,626 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 285 transitions. Word has length 75 [2023-11-23 21:18:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:50,628 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 285 transitions. [2023-11-23 21:18:50,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 21:18:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 285 transitions. [2023-11-23 21:18:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 21:18:50,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:50,643 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, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:50,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:18:50,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:50,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:50,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2013946182, now seen corresponding path program 1 times [2023-11-23 21:18:50,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:50,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023167002] [2023-11-23 21:18:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:50,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:50,924 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 21:18:50,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:50,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023167002] [2023-11-23 21:18:50,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023167002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:50,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:50,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:50,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751252800] [2023-11-23 21:18:50,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:50,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:50,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:50,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:50,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:50,930 INFO L87 Difference]: Start difference. First operand 216 states and 285 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 21:18:51,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:51,139 INFO L93 Difference]: Finished difference Result 342 states and 440 transitions. [2023-11-23 21:18:51,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:51,140 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2023-11-23 21:18:51,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:51,143 INFO L225 Difference]: With dead ends: 342 [2023-11-23 21:18:51,144 INFO L226 Difference]: Without dead ends: 218 [2023-11-23 21:18:51,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:51,147 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 0 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:51,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 489 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:18:51,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-11-23 21:18:51,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2023-11-23 21:18:51,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 128 states have internal predecessors, (158), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-23 21:18:51,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2023-11-23 21:18:51,199 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 76 [2023-11-23 21:18:51,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:51,200 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2023-11-23 21:18:51,200 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 21:18:51,201 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2023-11-23 21:18:51,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 21:18:51,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:51,203 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:51,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:18:51,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:51,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:51,205 INFO L85 PathProgramCache]: Analyzing trace with hash -24004915, now seen corresponding path program 1 times [2023-11-23 21:18:51,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:51,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715909420] [2023-11-23 21:18:51,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:51,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 21:18:51,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:51,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715909420] [2023-11-23 21:18:51,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715909420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:51,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:51,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:51,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212902291] [2023-11-23 21:18:51,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:51,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:51,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:51,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:51,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:51,413 INFO L87 Difference]: Start difference. First operand 218 states and 287 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 21:18:51,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:51,661 INFO L93 Difference]: Finished difference Result 471 states and 641 transitions. [2023-11-23 21:18:51,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:51,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2023-11-23 21:18:51,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:51,672 INFO L225 Difference]: With dead ends: 471 [2023-11-23 21:18:51,672 INFO L226 Difference]: Without dead ends: 271 [2023-11-23 21:18:51,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:51,683 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 59 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:51,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 501 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:18:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-11-23 21:18:51,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 266. [2023-11-23 21:18:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 162 states have internal predecessors, (213), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-23 21:18:51,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 370 transitions. [2023-11-23 21:18:51,723 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 370 transitions. Word has length 81 [2023-11-23 21:18:51,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:51,724 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 370 transitions. [2023-11-23 21:18:51,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 21:18:51,724 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 370 transitions. [2023-11-23 21:18:51,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-23 21:18:51,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:51,727 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:51,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:18:51,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:51,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:51,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1675372619, now seen corresponding path program 1 times [2023-11-23 21:18:51,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:51,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289982400] [2023-11-23 21:18:51,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:51,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 21:18:52,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:52,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289982400] [2023-11-23 21:18:52,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289982400] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:18:52,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178925007] [2023-11-23 21:18:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:52,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:18:52,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:52,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:18:52,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5ccc8-8d82-431d-b7cc-97deeea5b048/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:18:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:52,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:18:52,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:18:52,700 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 21:18:52,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:18:52,812 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 21:18:52,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178925007] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:18:52,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [427821175] [2023-11-23 21:18:52,841 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2023-11-23 21:18:52,841 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:18:52,847 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:18:52,853 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:18:52,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:19:40,541 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-11-23 21:19:40,759 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-11-23 21:19:41,013 INFO L180 IcfgInterpreter]: Interpretation finished