./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5 --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 f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:39:10,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:39:10,315 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:39:10,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:39:10,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:39:10,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:39:10,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:39:10,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:39:10,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:39:10,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:39:10,358 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:39:10,358 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:39:10,359 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:39:10,360 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:39:10,360 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:39:10,361 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:39:10,362 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:39:10,362 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:39:10,363 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:39:10,364 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:39:10,364 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:39:10,365 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:39:10,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:39:10,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:39:10,367 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:39:10,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:39:10,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:39:10,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:39:10,369 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:39:10,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:39:10,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:39:10,371 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:39:10,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:39:10,372 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:39:10,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:39:10,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:39:10,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:39:10,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:39:10,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:39:10,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:39:10,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:39:10,374 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:39:10,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:39:10,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:39:10,375 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:39:10,376 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:39:10,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:39:10,376 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_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 [2023-11-21 19:39:10,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:39:10,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:39:10,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:39:10,717 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:39:10,718 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:39:10,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2023-11-21 19:39:14,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:39:14,653 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:39:14,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2023-11-21 19:39:14,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/data/191f47c4d/d1f770edfaf7465dbdfdb57d6f6c825e/FLAGf2de37a09 [2023-11-21 19:39:14,723 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/data/191f47c4d/d1f770edfaf7465dbdfdb57d6f6c825e [2023-11-21 19:39:14,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:39:14,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:39:14,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:39:14,738 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:39:14,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:39:14,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:39:14" (1/1) ... [2023-11-21 19:39:14,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccbf210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:14, skipping insertion in model container [2023-11-21 19:39:14,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:39:14" (1/1) ... [2023-11-21 19:39:14,855 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:39:15,166 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_b4f6869c-204f-4905-a4eb-10771a8b842c/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2023-11-21 19:39:15,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:39:15,846 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:39:15,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-11-21 19:39:15,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [273] [2023-11-21 19:39:15,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [282] [2023-11-21 19:39:15,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [582] [2023-11-21 19:39:15,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [599] [2023-11-21 19:39:15,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1003] [2023-11-21 19:39:15,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1107] [2023-11-21 19:39:15,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2181] [2023-11-21 19:39:15,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2219] [2023-11-21 19:39:15,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2265] [2023-11-21 19:39:15,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2540] [2023-11-21 19:39:15,889 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_b4f6869c-204f-4905-a4eb-10771a8b842c/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2023-11-21 19:39:16,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:39:16,083 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:39:16,093 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:39:16,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16 WrapperNode [2023-11-21 19:39:16,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:39:16,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:39:16,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:39:16,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:39:16,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,232 INFO L138 Inliner]: procedures = 126, calls = 203, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 874 [2023-11-21 19:39:16,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:39:16,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:39:16,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:39:16,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:39:16,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:39:16,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:39:16,338 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:39:16,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:39:16,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (1/1) ... [2023-11-21 19:39:16,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:39:16,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:39:16,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:39:16,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:39:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-21 19:39:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-21 19:39:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-21 19:39:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-21 19:39:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-21 19:39:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-21 19:39:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-21 19:39:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-21 19:39:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-21 19:39:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-21 19:39:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-21 19:39:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-21 19:39:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-21 19:39:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-21 19:39:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-21 19:39:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-21 19:39:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-21 19:39:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-21 19:39:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-21 19:39:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-21 19:39:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-21 19:39:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:39:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-21 19:39:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-21 19:39:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-21 19:39:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-21 19:39:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-21 19:39:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-21 19:39:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-21 19:39:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-21 19:39:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-21 19:39:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-21 19:39:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-21 19:39:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-21 19:39:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-21 19:39:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-21 19:39:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-21 19:39:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-21 19:39:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:39:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-21 19:39:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-21 19:39:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:39:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:39:16,753 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:39:16,757 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:39:17,812 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:39:18,544 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:39:18,545 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:39:18,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:39:18 BoogieIcfgContainer [2023-11-21 19:39:18,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:39:18,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:39:18,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:39:18,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:39:18,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:39:14" (1/3) ... [2023-11-21 19:39:18,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e25209e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:39:18, skipping insertion in model container [2023-11-21 19:39:18,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:16" (2/3) ... [2023-11-21 19:39:18,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e25209e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:39:18, skipping insertion in model container [2023-11-21 19:39:18,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:39:18" (3/3) ... [2023-11-21 19:39:18,563 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2023-11-21 19:39:18,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:39:18,589 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:39:18,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:39:18,684 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;@6c2f4ee6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:39:18,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:39:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-21 19:39:18,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-21 19:39:18,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:39:18,716 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] [2023-11-21 19:39:18,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:39:18,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:39:18,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1587889573, now seen corresponding path program 1 times [2023-11-21 19:39:18,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:39:18,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726115922] [2023-11-21 19:39:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:39:18,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:39:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:39:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 19:39:19,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:39:19,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726115922] [2023-11-21 19:39:19,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726115922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:39:19,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:39:19,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:39:19,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513290941] [2023-11-21 19:39:19,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:39:19,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 19:39:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:39:19,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 19:39:19,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:39:19,484 INFO L87 Difference]: Start difference. First operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-21 19:39:19,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:39:19,674 INFO L93 Difference]: Finished difference Result 243 states and 322 transitions. [2023-11-21 19:39:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:39:19,677 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 72 [2023-11-21 19:39:19,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:39:19,698 INFO L225 Difference]: With dead ends: 243 [2023-11-21 19:39:19,698 INFO L226 Difference]: Without dead ends: 160 [2023-11-21 19:39:19,706 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 [2023-11-21 19:39:19,712 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:39:19,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:39:19,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-21 19:39:19,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-21 19:39:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 97 states have internal predecessors, (124), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-21 19:39:19,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 215 transitions. [2023-11-21 19:39:19,791 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 215 transitions. Word has length 72 [2023-11-21 19:39:19,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:39:19,798 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 215 transitions. [2023-11-21 19:39:19,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-21 19:39:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 215 transitions. [2023-11-21 19:39:19,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-21 19:39:19,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:39:19,805 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] [2023-11-21 19:39:19,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:39:19,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:39:19,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:39:19,807 INFO L85 PathProgramCache]: Analyzing trace with hash -676987060, now seen corresponding path program 1 times [2023-11-21 19:39:19,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:39:19,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351582814] [2023-11-21 19:39:19,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:39:19,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:39:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:39:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 19:39:20,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:39:20,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351582814] [2023-11-21 19:39:20,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351582814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:39:20,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:39:20,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:39:20,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040944069] [2023-11-21 19:39:20,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:39:20,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:39:20,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:39:20,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:39:20,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:39:20,127 INFO L87 Difference]: Start difference. First operand 160 states and 215 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-21 19:39:20,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:39:20,328 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2023-11-21 19:39:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:39:20,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 73 [2023-11-21 19:39:20,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:39:20,336 INFO L225 Difference]: With dead ends: 239 [2023-11-21 19:39:20,339 INFO L226 Difference]: Without dead ends: 162 [2023-11-21 19:39:20,341 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 [2023-11-21 19:39:20,346 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:39:20,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 371 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:39:20,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-21 19:39:20,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-11-21 19:39:20,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 96 states have (on average 1.3125) internal successors, (126), 99 states have internal predecessors, (126), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-21 19:39:20,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 217 transitions. [2023-11-21 19:39:20,387 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 217 transitions. Word has length 73 [2023-11-21 19:39:20,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:39:20,388 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 217 transitions. [2023-11-21 19:39:20,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-21 19:39:20,388 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2023-11-21 19:39:20,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-21 19:39:20,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:39:20,394 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] [2023-11-21 19:39:20,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:39:20,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:39:20,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:39:20,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1781198222, now seen corresponding path program 1 times [2023-11-21 19:39:20,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:39:20,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726961718] [2023-11-21 19:39:20,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:39:20,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:39:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:39:20,656 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 19:39:20,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:39:20,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726961718] [2023-11-21 19:39:20,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726961718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:39:20,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:39:20,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:39:20,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653091470] [2023-11-21 19:39:20,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:39:20,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:39:20,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:39:20,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:39:20,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:39:20,661 INFO L87 Difference]: Start difference. First operand 162 states and 217 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-21 19:39:20,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:39:20,781 INFO L93 Difference]: Finished difference Result 354 states and 493 transitions. [2023-11-21 19:39:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:39:20,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2023-11-21 19:39:20,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:39:20,786 INFO L225 Difference]: With dead ends: 354 [2023-11-21 19:39:20,787 INFO L226 Difference]: Without dead ends: 210 [2023-11-21 19:39:20,789 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 [2023-11-21 19:39:20,791 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 57 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:39:20,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 381 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:39:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-21 19:39:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2023-11-21 19:39:20,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.3984375) internal successors, (179), 131 states have internal predecessors, (179), 57 states have call successors, (57), 19 states have call predecessors, (57), 19 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-21 19:39:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 292 transitions. [2023-11-21 19:39:20,822 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 292 transitions. Word has length 78 [2023-11-21 19:39:20,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:39:20,823 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 292 transitions. [2023-11-21 19:39:20,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-21 19:39:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2023-11-21 19:39:20,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-21 19:39:20,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:39:20,830 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] [2023-11-21 19:39:20,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:39:20,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:39:20,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:39:20,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2070974351, now seen corresponding path program 1 times [2023-11-21 19:39:20,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:39:20,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666621712] [2023-11-21 19:39:20,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:39:20,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:39:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:39:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 19:39:21,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:39:21,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666621712] [2023-11-21 19:39:21,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666621712] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:39:21,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136562063] [2023-11-21 19:39:21,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:39:21,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:39:21,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:39:21,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:39:21,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6869c-204f-4905-a4eb-10771a8b842c/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:39:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:39:21,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:39:21,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:39:21,703 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 19:39:21,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:39:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 19:39:21,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136562063] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:39:21,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1837032551] [2023-11-21 19:39:21,860 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2023-11-21 19:39:21,860 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 19:39:21,870 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 19:39:21,877 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 19:39:21,878 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-21 19:40:11,780 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-11-21 19:40:12,040 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs