./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ --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 f589c9222141e642cc5dd52da93380b476d19c138575c9f6da35a3e335e5e2df --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:12:24,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:12:24,779 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:12:24,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:12:24,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:12:24,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:12:24,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:12:24,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:12:24,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:12:24,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:12:24,826 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:12:24,827 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:12:24,827 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:12:24,828 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:12:24,829 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:12:24,829 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:12:24,830 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:12:24,830 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:12:24,831 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:12:24,831 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:12:24,832 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:12:24,833 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:12:24,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:12:24,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:12:24,834 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:12:24,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:12:24,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:12:24,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:12:24,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:12:24,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:12:24,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:12:24,846 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:12:24,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:12:24,846 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:12:24,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:12:24,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:12:24,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:24,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:12:24,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:12:24,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:12:24,848 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:12:24,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:12:24,849 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:12:24,849 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:12:24,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:12:24,850 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_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f589c9222141e642cc5dd52da93380b476d19c138575c9f6da35a3e335e5e2df [2023-11-19 04:12:25,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:12:25,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:12:25,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:12:25,143 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:12:25,144 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:12:25,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c [2023-11-19 04:12:28,198 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:12:28,601 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:12:28,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c [2023-11-19 04:12:28,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/data/925be0829/3bb3785a2c3748808c9b06b38b039f1f/FLAG0cda8e9b4 [2023-11-19 04:12:28,657 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/data/925be0829/3bb3785a2c3748808c9b06b38b039f1f [2023-11-19 04:12:28,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:12:28,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:12:28,670 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:28,670 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:12:28,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:12:28,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:28" (1/1) ... [2023-11-19 04:12:28,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635a9840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:28, skipping insertion in model container [2023-11-19 04:12:28,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:28" (1/1) ... [2023-11-19 04:12:28,774 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:12:28,995 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_47fab156-17eb-440a-be98-2576218c1153/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c[1934,1947] [2023-11-19 04:12:29,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:29,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:12:29,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-11-19 04:12:29,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [66] [2023-11-19 04:12:29,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [75] [2023-11-19 04:12:29,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1155] [2023-11-19 04:12:29,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [1582] [2023-11-19 04:12:29,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1628] [2023-11-19 04:12:29,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1857] [2023-11-19 04:12:29,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2145] [2023-11-19 04:12:29,480 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2180] [2023-11-19 04:12:29,480 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2546] [2023-11-19 04:12:29,480 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2945] [2023-11-19 04:12:29,485 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_47fab156-17eb-440a-be98-2576218c1153/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c[1934,1947] [2023-11-19 04:12:29,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:29,712 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:12:29,720 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:12:29,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29 WrapperNode [2023-11-19 04:12:29,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:29,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:29,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:12:29,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:12:29,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:29,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:29,859 INFO L138 Inliner]: procedures = 135, calls = 235, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1107 [2023-11-19 04:12:29,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:29,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:12:29,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:12:29,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:12:29,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:29,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:29,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:29,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:29,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:29,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:29,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:29,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:30,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:12:30,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:12:30,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:12:30,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:12:30,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (1/1) ... [2023-11-19 04:12:30,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:30,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:30,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:12:30,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:12:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-19 04:12:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-19 04:12:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-19 04:12:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-19 04:12:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-19 04:12:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-19 04:12:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 04:12:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 04:12:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 04:12:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 04:12:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 04:12:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 04:12:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 04:12:30,106 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 04:12:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-19 04:12:30,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-19 04:12:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-19 04:12:30,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-19 04:12:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 04:12:30,108 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 04:12:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 04:12:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 04:12:30,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 04:12:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-19 04:12:30,110 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-19 04:12:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 04:12:30,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 04:12:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:12:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-19 04:12:30,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-19 04:12:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-19 04:12:30,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-19 04:12:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 04:12:30,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 04:12:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 04:12:30,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 04:12:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 04:12:30,112 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 04:12:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-19 04:12:30,113 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-19 04:12:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 04:12:30,113 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 04:12:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-19 04:12:30,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-19 04:12:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 04:12:30,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 04:12:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 04:12:30,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 04:12:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:12:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 04:12:30,115 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 04:12:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:12:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:12:30,378 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:12:30,382 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:12:31,465 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:12:32,092 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:12:32,092 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:12:32,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:32 BoogieIcfgContainer [2023-11-19 04:12:32,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:12:32,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:12:32,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:12:32,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:12:32,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:12:28" (1/3) ... [2023-11-19 04:12:32,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2112ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:32, skipping insertion in model container [2023-11-19 04:12:32,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:29" (2/3) ... [2023-11-19 04:12:32,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2112ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:32, skipping insertion in model container [2023-11-19 04:12:32,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:32" (3/3) ... [2023-11-19 04:12:32,108 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product33.cil.c [2023-11-19 04:12:32,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:12:32,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:12:32,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:12:32,197 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;@5b1e837c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:12:32,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:12:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 125 states have (on average 1.304) internal successors, (163), 129 states have internal predecessors, (163), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-19 04:12:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 04:12:32,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:32,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:32,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:32,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:32,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1957498850, now seen corresponding path program 1 times [2023-11-19 04:12:32,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:32,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878914578] [2023-11-19 04:12:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:32,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:32,757 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:12:32,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:32,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878914578] [2023-11-19 04:12:32,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878914578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:32,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:32,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:12:32,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080890442] [2023-11-19 04:12:32,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:32,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:12:32,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:32,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:12:32,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:12:32,832 INFO L87 Difference]: Start difference. First operand has 216 states, 125 states have (on average 1.304) internal successors, (163), 129 states have internal predecessors, (163), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:12:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:33,111 INFO L93 Difference]: Finished difference Result 349 states and 464 transitions. [2023-11-19 04:12:33,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:12:33,114 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 80 [2023-11-19 04:12:33,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:33,139 INFO L225 Difference]: With dead ends: 349 [2023-11-19 04:12:33,139 INFO L226 Difference]: Without dead ends: 213 [2023-11-19 04:12:33,152 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 [2023-11-19 04:12:33,167 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:33,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:12:33,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-19 04:12:33,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2023-11-19 04:12:33,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 126 states have internal predecessors, (157), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-19 04:12:33,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 286 transitions. [2023-11-19 04:12:33,304 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 286 transitions. Word has length 80 [2023-11-19 04:12:33,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:33,307 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 286 transitions. [2023-11-19 04:12:33,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:12:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 286 transitions. [2023-11-19 04:12:33,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 04:12:33,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:33,325 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:33,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:12:33,326 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:33,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:33,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2039151093, now seen corresponding path program 1 times [2023-11-19 04:12:33,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:33,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590429904] [2023-11-19 04:12:33,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:33,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:12:33,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:33,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590429904] [2023-11-19 04:12:33,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590429904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:33,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:33,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:12:33,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655665490] [2023-11-19 04:12:33,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:33,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:12:33,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:33,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:12:33,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:12:33,672 INFO L87 Difference]: Start difference. First operand 213 states and 286 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:12:33,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:33,823 INFO L93 Difference]: Finished difference Result 345 states and 452 transitions. [2023-11-19 04:12:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:12:33,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 81 [2023-11-19 04:12:33,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:33,829 INFO L225 Difference]: With dead ends: 345 [2023-11-19 04:12:33,829 INFO L226 Difference]: Without dead ends: 215 [2023-11-19 04:12:33,830 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 [2023-11-19 04:12:33,832 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:33,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:12:33,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-19 04:12:33,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-11-19 04:12:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 125 states have (on average 1.272) internal successors, (159), 128 states have internal predecessors, (159), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-19 04:12:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 288 transitions. [2023-11-19 04:12:33,860 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 288 transitions. Word has length 81 [2023-11-19 04:12:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:33,861 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 288 transitions. [2023-11-19 04:12:33,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:12:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 288 transitions. [2023-11-19 04:12:33,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 04:12:33,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:33,864 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] [2023-11-19 04:12:33,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:12:33,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:33,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash 499302186, now seen corresponding path program 1 times [2023-11-19 04:12:33,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:33,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360779231] [2023-11-19 04:12:33,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:33,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:12:34,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:34,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360779231] [2023-11-19 04:12:34,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360779231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:34,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:34,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:12:34,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926607742] [2023-11-19 04:12:34,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:34,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:12:34,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:34,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:12:34,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:12:34,092 INFO L87 Difference]: Start difference. First operand 215 states and 288 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:12:34,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:34,286 INFO L93 Difference]: Finished difference Result 460 states and 635 transitions. [2023-11-19 04:12:34,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:12:34,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2023-11-19 04:12:34,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:34,293 INFO L225 Difference]: With dead ends: 460 [2023-11-19 04:12:34,293 INFO L226 Difference]: Without dead ends: 263 [2023-11-19 04:12:34,300 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 [2023-11-19 04:12:34,304 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 57 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:34,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 490 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:12:34,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-11-19 04:12:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 258. [2023-11-19 04:12:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.3503184713375795) internal successors, (212), 160 states have internal predecessors, (212), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-19 04:12:34,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 363 transitions. [2023-11-19 04:12:34,361 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 363 transitions. Word has length 86 [2023-11-19 04:12:34,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:34,364 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 363 transitions. [2023-11-19 04:12:34,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:12:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 363 transitions. [2023-11-19 04:12:34,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 04:12:34,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:34,370 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] [2023-11-19 04:12:34,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:12:34,370 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:34,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1661818993, now seen corresponding path program 1 times [2023-11-19 04:12:34,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:34,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319965152] [2023-11-19 04:12:34,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:34,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:34,755 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:12:34,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:34,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319965152] [2023-11-19 04:12:34,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319965152] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:12:34,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102126444] [2023-11-19 04:12:34,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:34,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:12:34,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:34,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:12:34,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47fab156-17eb-440a-be98-2576218c1153/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:12:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:35,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:12:35,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:12:35,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:12:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:12:35,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102126444] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:12:35,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1242695564] [2023-11-19 04:12:35,492 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2023-11-19 04:12:35,492 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:12:35,496 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:12:35,501 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:12:35,502 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:13:24,968 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-11-19 04:13:25,188 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs