./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product22.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_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/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_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/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_4b9e68cc-232b-465c-8604-513ff7a26475/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 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:31:20,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:31:20,731 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:31:20,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:31:20,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:31:20,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:31:20,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:31:20,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:31:20,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:31:20,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:31:20,768 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:31:20,769 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:31:20,769 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:31:20,770 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:31:20,770 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:31:20,771 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:31:20,771 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:31:20,772 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:31:20,776 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:31:20,777 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:31:20,777 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:31:20,778 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:31:20,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:31:20,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:31:20,780 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:31:20,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:31:20,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:31:20,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:31:20,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:31:20,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:31:20,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:31:20,784 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:31:20,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:31:20,795 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:31:20,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:31:20,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:31:20,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:31:20,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:31:20,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:31:20,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:31:20,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:31:20,798 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:31:20,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:31:20,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:31:20,799 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:31:20,799 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:31:20,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:31:20,800 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_4b9e68cc-232b-465c-8604-513ff7a26475/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d [2023-11-23 20:31:21,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:31:21,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:31:21,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:31:21,175 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:31:21,175 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:31:21,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2023-11-23 20:31:24,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:31:24,959 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:31:24,960 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2023-11-23 20:31:24,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/data/9bb5bc8a0/6448f655618b4c578da337eadf4772f2/FLAG491afec8a [2023-11-23 20:31:24,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/data/9bb5bc8a0/6448f655618b4c578da337eadf4772f2 [2023-11-23 20:31:25,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:31:25,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:31:25,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:31:25,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:31:25,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:31:25,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:31:25" (1/1) ... [2023-11-23 20:31:25,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6673e5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:25, skipping insertion in model container [2023-11-23 20:31:25,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:31:25" (1/1) ... [2023-11-23 20:31:25,094 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:31:25,717 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_4b9e68cc-232b-465c-8604-513ff7a26475/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c[33239,33252] [2023-11-23 20:31:25,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:31:25,886 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:31:25,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-11-23 20:31:25,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [414] [2023-11-23 20:31:25,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [538] [2023-11-23 20:31:25,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [767] [2023-11-23 20:31:25,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [784] [2023-11-23 20:31:25,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1189] [2023-11-23 20:31:25,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1227] [2023-11-23 20:31:25,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1257] [2023-11-23 20:31:25,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1557] [2023-11-23 20:31:25,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1566] [2023-11-23 20:31:25,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2637] [2023-11-23 20:31:25,950 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_4b9e68cc-232b-465c-8604-513ff7a26475/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c[33239,33252] [2023-11-23 20:31:25,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:31:26,096 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:31:26,104 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:31:26,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26 WrapperNode [2023-11-23 20:31:26,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:31:26,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:31:26,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:31:26,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:31:26,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,207 INFO L138 Inliner]: procedures = 128, calls = 206, calls flagged for inlining = 59, calls inlined = 54, statements flattened = 1027 [2023-11-23 20:31:26,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:31:26,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:31:26,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:31:26,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:31:26,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:31:26,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:31:26,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:31:26,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:31:26,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (1/1) ... [2023-11-23 20:31:26,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:31:26,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:31:26,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:31:26,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:31:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 20:31:26,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 20:31:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 20:31:26,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 20:31:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 20:31:26,404 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 20:31:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 20:31:26,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 20:31:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 20:31:26,405 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 20:31:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 20:31:26,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 20:31:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 20:31:26,407 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 20:31:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 20:31:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 20:31:26,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 20:31:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-23 20:31:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-23 20:31:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 20:31:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 20:31:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:31:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 20:31:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 20:31:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 20:31:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 20:31:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 20:31:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 20:31:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 20:31:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 20:31:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 20:31:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 20:31:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 20:31:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 20:31:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 20:31:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 20:31:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:31:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 20:31:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 20:31:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:31:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:31:26,684 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:31:26,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:31:27,524 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:31:28,120 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:31:28,120 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:31:28,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:31:28 BoogieIcfgContainer [2023-11-23 20:31:28,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:31:28,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:31:28,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:31:28,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:31:28,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:31:25" (1/3) ... [2023-11-23 20:31:28,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae14203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:31:28, skipping insertion in model container [2023-11-23 20:31:28,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:26" (2/3) ... [2023-11-23 20:31:28,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae14203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:31:28, skipping insertion in model container [2023-11-23 20:31:28,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:31:28" (3/3) ... [2023-11-23 20:31:28,132 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product22.cil.c [2023-11-23 20:31:28,155 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:31:28,155 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:31:28,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:31:28,219 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;@7733ed92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:31:28,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:31:28,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-23 20:31:28,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:31:28,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:31:28,239 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] [2023-11-23 20:31:28,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:31:28,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:31:28,245 INFO L85 PathProgramCache]: Analyzing trace with hash 926281624, now seen corresponding path program 1 times [2023-11-23 20:31:28,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:31:28,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460174681] [2023-11-23 20:31:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:31:28,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:31:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:31:28,673 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:31:28,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:31:28,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460174681] [2023-11-23 20:31:28,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460174681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:31:28,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:31:28,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:31:28,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967022118] [2023-11-23 20:31:28,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:31:28,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:31:28,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:31:28,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:31:28,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:31:28,727 INFO L87 Difference]: Start difference. First operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:31:28,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:31:28,893 INFO L93 Difference]: Finished difference Result 257 states and 348 transitions. [2023-11-23 20:31:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:31:28,895 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2023-11-23 20:31:28,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:31:28,917 INFO L225 Difference]: With dead ends: 257 [2023-11-23 20:31:28,917 INFO L226 Difference]: Without dead ends: 167 [2023-11-23 20:31:28,926 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 20:31:28,931 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:31:28,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:31:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-23 20:31:29,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2023-11-23 20:31:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 98 states have (on average 1.316326530612245) internal successors, (129), 101 states have internal predecessors, (129), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 20:31:29,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 228 transitions. [2023-11-23 20:31:29,018 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 228 transitions. Word has length 56 [2023-11-23 20:31:29,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:31:29,022 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 228 transitions. [2023-11-23 20:31:29,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:31:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 228 transitions. [2023-11-23 20:31:29,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:31:29,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:31:29,034 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] [2023-11-23 20:31:29,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:31:29,034 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:31:29,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:31:29,035 INFO L85 PathProgramCache]: Analyzing trace with hash 688856738, now seen corresponding path program 1 times [2023-11-23 20:31:29,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:31:29,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693428815] [2023-11-23 20:31:29,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:31:29,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:31:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:31:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:31:29,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:31:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693428815] [2023-11-23 20:31:29,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693428815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:31:29,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:31:29,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:31:29,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57774836] [2023-11-23 20:31:29,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:31:29,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:31:29,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:31:29,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:31:29,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:31:29,400 INFO L87 Difference]: Start difference. First operand 167 states and 228 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:31:29,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:31:29,554 INFO L93 Difference]: Finished difference Result 253 states and 336 transitions. [2023-11-23 20:31:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:31:29,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2023-11-23 20:31:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:31:29,557 INFO L225 Difference]: With dead ends: 253 [2023-11-23 20:31:29,558 INFO L226 Difference]: Without dead ends: 169 [2023-11-23 20:31:29,559 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 20:31:29,560 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:31:29,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:31:29,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-23 20:31:29,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2023-11-23 20:31:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 100 states have (on average 1.31) internal successors, (131), 103 states have internal predecessors, (131), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 20:31:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 230 transitions. [2023-11-23 20:31:29,594 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 230 transitions. Word has length 57 [2023-11-23 20:31:29,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:31:29,595 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 230 transitions. [2023-11-23 20:31:29,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:31:29,595 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 230 transitions. [2023-11-23 20:31:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 20:31:29,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:31:29,598 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] [2023-11-23 20:31:29,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:31:29,598 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:31:29,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:31:29,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1482941739, now seen corresponding path program 1 times [2023-11-23 20:31:29,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:31:29,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105977634] [2023-11-23 20:31:29,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:31:29,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:31:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:31:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:31:29,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:31:29,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105977634] [2023-11-23 20:31:29,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105977634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:31:29,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:31:29,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:31:29,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218897116] [2023-11-23 20:31:29,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:31:29,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:31:29,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:31:29,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:31:29,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:31:29,781 INFO L87 Difference]: Start difference. First operand 169 states and 230 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:31:29,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:31:29,914 INFO L93 Difference]: Finished difference Result 368 states and 519 transitions. [2023-11-23 20:31:29,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:31:29,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2023-11-23 20:31:29,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:31:29,923 INFO L225 Difference]: With dead ends: 368 [2023-11-23 20:31:29,923 INFO L226 Difference]: Without dead ends: 217 [2023-11-23 20:31:29,928 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 20:31:29,929 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 57 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:31:29,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 395 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:31:29,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-23 20:31:29,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 212. [2023-11-23 20:31:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 132 states have (on average 1.393939393939394) internal successors, (184), 135 states have internal predecessors, (184), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-23 20:31:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2023-11-23 20:31:29,963 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 62 [2023-11-23 20:31:29,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:31:29,965 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2023-11-23 20:31:29,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:31:29,966 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2023-11-23 20:31:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 20:31:29,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:31:29,972 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] [2023-11-23 20:31:29,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:31:29,973 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:31:29,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:31:29,974 INFO L85 PathProgramCache]: Analyzing trace with hash 2056183195, now seen corresponding path program 1 times [2023-11-23 20:31:29,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:31:29,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193570752] [2023-11-23 20:31:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:31:29,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:31:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:31:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:31:30,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:31:30,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193570752] [2023-11-23 20:31:30,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193570752] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:31:30,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497755006] [2023-11-23 20:31:30,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:31:30,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:31:30,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:31:30,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:31:30,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9e68cc-232b-465c-8604-513ff7a26475/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:31:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:31:30,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:31:30,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:31:30,633 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:31:30,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:31:30,721 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:31:30,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497755006] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:31:30,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [300021290] [2023-11-23 20:31:30,752 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2023-11-23 20:31:30,753 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 20:31:30,758 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 20:31:30,764 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 20:31:30,764 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 20:32:17,409 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-11-23 20:32:17,597 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2023-11-23 20:32:17,859 INFO L180 IcfgInterpreter]: Interpretation finished