./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product31.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_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/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_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/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_377fd7e3-437a-4782-a75c-d56fa842a7d2/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 d51a9662ec11e877bdc62fbff8cdf19fcc101bb2b0234c411e7900fe51bd7f38 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:08,709 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:08,819 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:18:08,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:08,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:08,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:08,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:08,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:08,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:08,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:08,872 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:08,873 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:08,873 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:08,875 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:08,876 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:08,876 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:08,877 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:08,877 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:08,878 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:08,878 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:08,879 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:08,879 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:08,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:08,881 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:08,882 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:18:08,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:08,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:18:08,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:08,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:08,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:08,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:08,885 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:18:08,886 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:08,886 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:08,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:08,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:08,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:08,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:08,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:08,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:08,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:08,889 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:08,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:08,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:08,890 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:08,890 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:08,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:08,891 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_377fd7e3-437a-4782-a75c-d56fa842a7d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d51a9662ec11e877bdc62fbff8cdf19fcc101bb2b0234c411e7900fe51bd7f38 [2023-11-23 21:18:09,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:09,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:09,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:09,234 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:09,234 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:09,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec27_product31.cil.c [2023-11-23 21:18:12,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:13,053 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:13,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/sv-benchmarks/c/product-lines/email_spec27_product31.cil.c [2023-11-23 21:18:13,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/data/b4c5d5099/a2545bd37dbc4dbfb69a41ef70538e9e/FLAG470562888 [2023-11-23 21:18:13,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/data/b4c5d5099/a2545bd37dbc4dbfb69a41ef70538e9e [2023-11-23 21:18:13,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:13,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:13,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:13,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:13,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:13,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:13" (1/1) ... [2023-11-23 21:18:13,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1377c66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:13, skipping insertion in model container [2023-11-23 21:18:13,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:13" (1/1) ... [2023-11-23 21:18:13,403 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:14,106 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_377fd7e3-437a-4782-a75c-d56fa842a7d2/sv-benchmarks/c/product-lines/email_spec27_product31.cil.c[61351,61364] [2023-11-23 21:18:14,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:14,164 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:14,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-23 21:18:14,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [363] [2023-11-23 21:18:14,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [398] [2023-11-23 21:18:14,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [810] [2023-11-23 21:18:14,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1882] [2023-11-23 21:18:14,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2098] [2023-11-23 21:18:14,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2130] [2023-11-23 21:18:14,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2496] [2023-11-23 21:18:14,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2513] [2023-11-23 21:18:14,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2869] [2023-11-23 21:18:14,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2878] [2023-11-23 21:18:14,328 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_377fd7e3-437a-4782-a75c-d56fa842a7d2/sv-benchmarks/c/product-lines/email_spec27_product31.cil.c[61351,61364] [2023-11-23 21:18:14,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:14,390 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:14,398 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:14,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14 WrapperNode [2023-11-23 21:18:14,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:14,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:14,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:14,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:14,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,538 INFO L138 Inliner]: procedures = 131, calls = 219, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1020 [2023-11-23 21:18:14,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:14,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:14,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:14,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:14,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,605 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:14,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:14,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:14,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:14,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (1/1) ... [2023-11-23 21:18:14,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:14,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:14,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:14,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:14,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-23 21:18:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-23 21:18:14,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 21:18:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 21:18:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 21:18:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 21:18:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:18:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:18:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:18:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:18:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 21:18:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 21:18:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:18:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:18:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 21:18:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 21:18:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-23 21:18:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-23 21:18:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:18:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:18:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:18:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 21:18:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 21:18:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:18:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:18:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-23 21:18:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-23 21:18:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-23 21:18:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-23 21:18:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:18:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:18:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:18:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:18:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:18:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:18:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-11-23 21:18:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-11-23 21:18:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-23 21:18:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-23 21:18:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:18:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:18:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 21:18:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 21:18:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:18:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:18:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:18:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:18:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:18:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:18:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:18:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:15,025 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:15,029 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:16,028 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:16,644 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:16,644 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:18:16,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:16 BoogieIcfgContainer [2023-11-23 21:18:16,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:16,649 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:16,649 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:16,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:16,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:13" (1/3) ... [2023-11-23 21:18:16,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edf5a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:16, skipping insertion in model container [2023-11-23 21:18:16,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:14" (2/3) ... [2023-11-23 21:18:16,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edf5a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:16, skipping insertion in model container [2023-11-23 21:18:16,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:16" (3/3) ... [2023-11-23 21:18:16,660 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product31.cil.c [2023-11-23 21:18:16,682 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:16,682 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:18:16,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:16,758 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;@4a0066d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:16,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:18:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 124 states have internal predecessors, (157), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-23 21:18:16,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 21:18:16,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:16,782 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:16,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:16,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:16,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1695681660, now seen corresponding path program 1 times [2023-11-23 21:18:16,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:16,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237300126] [2023-11-23 21:18:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:16,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:18:17,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:17,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237300126] [2023-11-23 21:18:17,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237300126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:17,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:17,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:18:17,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823293844] [2023-11-23 21:18:17,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:17,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:18:17,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:17,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:18:17,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:18:17,392 INFO L87 Difference]: Start difference. First operand has 207 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 124 states have internal predecessors, (157), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:18:17,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:17,589 INFO L93 Difference]: Finished difference Result 331 states and 436 transitions. [2023-11-23 21:18:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:18:17,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 92 [2023-11-23 21:18:17,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:17,613 INFO L225 Difference]: With dead ends: 331 [2023-11-23 21:18:17,613 INFO L226 Difference]: Without dead ends: 204 [2023-11-23 21:18:17,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:18:17,628 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:17,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:18:17,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-23 21:18:17,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-11-23 21:18:17,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 121 states have internal predecessors, (151), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-23 21:18:17,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 272 transitions. [2023-11-23 21:18:17,715 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 272 transitions. Word has length 92 [2023-11-23 21:18:17,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:17,718 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 272 transitions. [2023-11-23 21:18:17,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:18:17,719 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 272 transitions. [2023-11-23 21:18:17,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 21:18:17,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:17,725 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:17,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:18:17,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:17,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:17,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1860417923, now seen corresponding path program 1 times [2023-11-23 21:18:17,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:17,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047960631] [2023-11-23 21:18:17,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:17,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:18:18,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:18,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047960631] [2023-11-23 21:18:18,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047960631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:18,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:18,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:18,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689319944] [2023-11-23 21:18:18,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:18,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:18,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:18,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:18,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:18,094 INFO L87 Difference]: Start difference. First operand 204 states and 272 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:18:18,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:18,297 INFO L93 Difference]: Finished difference Result 327 states and 424 transitions. [2023-11-23 21:18:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:18,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 93 [2023-11-23 21:18:18,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:18,304 INFO L225 Difference]: With dead ends: 327 [2023-11-23 21:18:18,304 INFO L226 Difference]: Without dead ends: 206 [2023-11-23 21:18:18,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:18,314 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:18,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:18:18,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-11-23 21:18:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2023-11-23 21:18:18,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 120 states have (on average 1.275) internal successors, (153), 123 states have internal predecessors, (153), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-23 21:18:18,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 274 transitions. [2023-11-23 21:18:18,360 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 274 transitions. Word has length 93 [2023-11-23 21:18:18,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:18,361 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 274 transitions. [2023-11-23 21:18:18,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:18:18,362 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2023-11-23 21:18:18,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 21:18:18,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:18,372 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:18,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:18:18,373 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:18,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:18,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1845426013, now seen corresponding path program 1 times [2023-11-23 21:18:18,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:18,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59823855] [2023-11-23 21:18:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:18,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:18:18,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:18,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59823855] [2023-11-23 21:18:18,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59823855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:18,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:18,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:18,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366828256] [2023-11-23 21:18:18,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:18,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:18,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:18,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:18,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:18,562 INFO L87 Difference]: Start difference. First operand 206 states and 274 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:18:18,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:18,699 INFO L93 Difference]: Finished difference Result 442 states and 607 transitions. [2023-11-23 21:18:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:18,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2023-11-23 21:18:18,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:18,704 INFO L225 Difference]: With dead ends: 442 [2023-11-23 21:18:18,704 INFO L226 Difference]: Without dead ends: 254 [2023-11-23 21:18:18,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:18,707 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 57 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:18,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 463 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:18:18,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-23 21:18:18,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 249. [2023-11-23 21:18:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 152 states have (on average 1.355263157894737) internal successors, (206), 155 states have internal predecessors, (206), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2023-11-23 21:18:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 349 transitions. [2023-11-23 21:18:18,735 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 349 transitions. Word has length 98 [2023-11-23 21:18:18,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:18,736 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 349 transitions. [2023-11-23 21:18:18,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:18:18,737 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 349 transitions. [2023-11-23 21:18:18,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-23 21:18:18,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:18,740 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:18,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:18:18,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:18,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:18,741 INFO L85 PathProgramCache]: Analyzing trace with hash -983719986, now seen corresponding path program 1 times [2023-11-23 21:18:18,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:18,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497517035] [2023-11-23 21:18:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:18,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:18:19,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:19,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497517035] [2023-11-23 21:18:19,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497517035] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:18:19,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818450382] [2023-11-23 21:18:19,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:19,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:18:19,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:19,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:18:19,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_377fd7e3-437a-4782-a75c-d56fa842a7d2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:18:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:19,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:18:19,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:18:19,699 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:18:19,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:18:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:18:19,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818450382] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:18:19,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2120018798] [2023-11-23 21:18:19,836 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2023-11-23 21:18:19,837 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:18:19,841 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:18:19,848 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:18:19,848 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:19:09,534 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-11-23 21:19:09,798 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-11-23 21:19:10,016 INFO L180 IcfgInterpreter]: Interpretation finished