./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product19.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_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/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_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/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_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/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 195d502e207cba6e22b4d3a0f1eab4288ed491325552159482eaed582ac159e0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:10,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:10,292 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:16:10,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:10,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:10,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:10,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:10,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:10,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:10,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:10,355 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:10,356 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:10,356 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:10,358 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:10,358 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:10,359 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:10,359 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:10,360 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:10,360 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:10,361 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:10,362 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:10,363 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:10,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:10,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:10,365 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:10,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:10,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:10,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:10,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:10,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:10,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:10,369 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:10,369 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:10,369 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:10,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:10,370 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:10,370 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:10,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:10,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:10,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:10,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:10,371 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:10,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:10,372 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:10,372 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:10,372 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:10,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:10,373 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_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 195d502e207cba6e22b4d3a0f1eab4288ed491325552159482eaed582ac159e0 [2023-11-23 21:16:10,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:10,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:10,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:10,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:10,692 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:10,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec27_product19.cil.c [2023-11-23 21:16:13,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:14,151 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:14,152 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/sv-benchmarks/c/product-lines/email_spec27_product19.cil.c [2023-11-23 21:16:14,184 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/data/fd43ad05e/446a9842e62b4c5eacd024688f73d99b/FLAGb1c194a86 [2023-11-23 21:16:14,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/data/fd43ad05e/446a9842e62b4c5eacd024688f73d99b [2023-11-23 21:16:14,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:14,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:14,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:14,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:14,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:14,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:14" (1/1) ... [2023-11-23 21:16:14,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e46c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:14, skipping insertion in model container [2023-11-23 21:16:14,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:14" (1/1) ... [2023-11-23 21:16:14,314 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:14,787 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_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/sv-benchmarks/c/product-lines/email_spec27_product19.cil.c[17762,17775] [2023-11-23 21:16:15,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:15,050 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:15,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-11-23 21:16:15,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [414] [2023-11-23 21:16:15,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [461] [2023-11-23 21:16:15,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [499] [2023-11-23 21:16:15,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [799] [2023-11-23 21:16:15,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [808] [2023-11-23 21:16:15,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1024] [2023-11-23 21:16:15,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1129] [2023-11-23 21:16:15,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1146] [2023-11-23 21:16:15,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2217] [2023-11-23 21:16:15,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2621] [2023-11-23 21:16:15,121 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_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/sv-benchmarks/c/product-lines/email_spec27_product19.cil.c[17762,17775] [2023-11-23 21:16:15,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:15,280 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:15,289 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:15,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15 WrapperNode [2023-11-23 21:16:15,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:15,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:15,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:15,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:15,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,404 INFO L138 Inliner]: procedures = 127, calls = 200, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 959 [2023-11-23 21:16:15,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:15,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:15,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:15,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:15,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,466 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:15,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:15,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:15,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:15,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:15,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:15,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:15,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:15,608 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:16:15,608 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:16:15,609 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:16:15,609 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:16:15,609 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 21:16:15,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 21:16:15,609 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:16:15,610 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:16:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-23 21:16:15,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-23 21:16:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:16:15,610 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:16:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:16:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 21:16:15,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 21:16:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:16:15,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:16:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-23 21:16:15,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-23 21:16:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:16:15,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:16:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:16:15,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:16:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:16:15,613 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:16:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-11-23 21:16:15,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-11-23 21:16:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-23 21:16:15,613 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-23 21:16:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:16:15,614 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:16:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:16:15,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:16:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:16:15,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:16:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:16:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:16:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:15,823 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:15,826 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:16,820 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:17,479 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:17,479 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:17,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:17 BoogieIcfgContainer [2023-11-23 21:16:17,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:17,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:17,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:17,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:17,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:14" (1/3) ... [2023-11-23 21:16:17,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a3318c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:17, skipping insertion in model container [2023-11-23 21:16:17,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15" (2/3) ... [2023-11-23 21:16:17,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a3318c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:17, skipping insertion in model container [2023-11-23 21:16:17,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:17" (3/3) ... [2023-11-23 21:16:17,496 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product19.cil.c [2023-11-23 21:16:17,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:17,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:17,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:17,588 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;@4941208c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:17,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 97 states have (on average 1.3402061855670102) internal successors, (130), 99 states have internal predecessors, (130), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-23 21:16:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 21:16:17,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:17,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:17,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:17,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:17,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2018826549, now seen corresponding path program 1 times [2023-11-23 21:16:17,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:17,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361156688] [2023-11-23 21:16:17,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:17,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:18,124 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 21:16:18,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:18,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361156688] [2023-11-23 21:16:18,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361156688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:18,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:18,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:18,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537284426] [2023-11-23 21:16:18,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:18,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:16:18,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:16:18,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:16:18,200 INFO L87 Difference]: Start difference. First operand has 163 states, 97 states have (on average 1.3402061855670102) internal successors, (130), 99 states have internal predecessors, (130), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 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 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:16:18,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:18,374 INFO L93 Difference]: Finished difference Result 243 states and 322 transitions. [2023-11-23 21:16:18,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:16:18,377 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 68 [2023-11-23 21:16:18,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:18,389 INFO L225 Difference]: With dead ends: 243 [2023-11-23 21:16:18,389 INFO L226 Difference]: Without dead ends: 160 [2023-11-23 21:16:18,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:16:18,399 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:18,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:18,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-23 21:16:18,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-23 21:16:18,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 95 states have (on average 1.305263157894737) internal successors, (124), 96 states have internal predecessors, (124), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-23 21:16:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 215 transitions. [2023-11-23 21:16:18,462 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 215 transitions. Word has length 68 [2023-11-23 21:16:18,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:18,464 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 215 transitions. [2023-11-23 21:16:18,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:16:18,464 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 215 transitions. [2023-11-23 21:16:18,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 21:16:18,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:18,470 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:18,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:18,470 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:18,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:18,471 INFO L85 PathProgramCache]: Analyzing trace with hash -636432653, now seen corresponding path program 1 times [2023-11-23 21:16:18,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:18,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948836186] [2023-11-23 21:16:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:18,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:18,743 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 21:16:18,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:18,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948836186] [2023-11-23 21:16:18,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948836186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:18,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:18,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:18,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247447262] [2023-11-23 21:16:18,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:18,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:18,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:18,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:18,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:18,749 INFO L87 Difference]: Start difference. First operand 160 states and 215 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:16:18,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:18,865 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2023-11-23 21:16:18,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:18,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 69 [2023-11-23 21:16:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:18,869 INFO L225 Difference]: With dead ends: 239 [2023-11-23 21:16:18,869 INFO L226 Difference]: Without dead ends: 162 [2023-11-23 21:16:18,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:18,872 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:18,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 369 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:18,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-23 21:16:18,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-11-23 21:16:18,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 98 states have internal predecessors, (126), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-23 21:16:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 217 transitions. [2023-11-23 21:16:18,893 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 217 transitions. Word has length 69 [2023-11-23 21:16:18,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:18,894 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 217 transitions. [2023-11-23 21:16:18,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:16:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2023-11-23 21:16:18,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 21:16:18,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:18,900 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:18,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:16:18,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:18,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:18,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1673250766, now seen corresponding path program 1 times [2023-11-23 21:16:18,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:18,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119147157] [2023-11-23 21:16:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:18,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:19,080 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 21:16:19,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:19,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119147157] [2023-11-23 21:16:19,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119147157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:19,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:19,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:19,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790496739] [2023-11-23 21:16:19,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:19,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:19,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:19,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:19,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:19,086 INFO L87 Difference]: Start difference. First operand 162 states and 217 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:16:19,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:19,235 INFO L93 Difference]: Finished difference Result 354 states and 493 transitions. [2023-11-23 21:16:19,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:19,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2023-11-23 21:16:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:19,241 INFO L225 Difference]: With dead ends: 354 [2023-11-23 21:16:19,241 INFO L226 Difference]: Without dead ends: 210 [2023-11-23 21:16:19,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:19,249 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 57 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:19,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 373 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:19,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-23 21:16:19,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2023-11-23 21:16:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 129 states have (on average 1.3875968992248062) internal successors, (179), 130 states have internal predecessors, (179), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-23 21:16:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 292 transitions. [2023-11-23 21:16:19,274 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 292 transitions. Word has length 74 [2023-11-23 21:16:19,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:19,274 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 292 transitions. [2023-11-23 21:16:19,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:16:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2023-11-23 21:16:19,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 21:16:19,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:19,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:19,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:16:19,278 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:19,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:19,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1708785742, now seen corresponding path program 1 times [2023-11-23 21:16:19,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:19,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077502207] [2023-11-23 21:16:19,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:19,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:19,473 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 21:16:19,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:19,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077502207] [2023-11-23 21:16:19,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077502207] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:16:19,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848970365] [2023-11-23 21:16:19,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:19,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:19,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:19,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:19,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad0bfbc-fc3e-4bec-9f69-19f072912edb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:16:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:19,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:16:19,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:19,900 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 21:16:19,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:16:19,986 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 21:16:19,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848970365] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:16:19,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [112761234] [2023-11-23 21:16:20,010 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2023-11-23 21:16:20,012 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:16:20,017 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:16:20,023 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:16:20,023 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:17:04,862 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-11-23 21:17:05,038 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-11-23 21:17:05,236 INFO L180 IcfgInterpreter]: Interpretation finished