./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2 --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 4aad45d78970842948dd8f2d4a23b330a7c7a053ef8846b1af27e637f96c3ae7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:33,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:34,047 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:24:34,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:34,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:34,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:34,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:34,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:34,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:34,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:34,107 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:34,107 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:34,108 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:34,109 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:24:34,113 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:34,114 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:34,114 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:24:34,114 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:24:34,115 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:34,115 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:24:34,115 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:24:34,116 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:24:34,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:34,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:34,117 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:34,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:24:34,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:34,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:34,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:34,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:34,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:34,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:34,119 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:34,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:34,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:34,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:34,121 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:34,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:34,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:34,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:34,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:34,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:34,126 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:24:34,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:24:34,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:34,127 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:34,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:34,128 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_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aad45d78970842948dd8f2d4a23b330a7c7a053ef8846b1af27e637f96c3ae7 [2024-11-02 12:24:34,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:34,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:34,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:34,538 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:34,539 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:34,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c Unable to find full path for "g++" [2024-11-02 12:24:36,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:37,045 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:37,046 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c [2024-11-02 12:24:37,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/data/48e6f63a9/d7d3b3fa7d134445af40ed2602f46992/FLAG6cc907c17 [2024-11-02 12:24:37,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/data/48e6f63a9/d7d3b3fa7d134445af40ed2602f46992 [2024-11-02 12:24:37,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:37,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:37,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:37,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:37,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:37,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:37" (1/1) ... [2024-11-02 12:24:37,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c41d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:37, skipping insertion in model container [2024-11-02 12:24:37,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:37" (1/1) ... [2024-11-02 12:24:37,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:38,103 WARN L251 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_b27eece6-95d7-4e2d-89c3-17d8f091a696/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c[63576,63589] [2024-11-02 12:24:38,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:38,129 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:38,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-02 12:24:38,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [66] [2024-11-02 12:24:38,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [432] [2024-11-02 12:24:38,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [550] [2024-11-02 12:24:38,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [900] [2024-11-02 12:24:38,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1301] [2024-11-02 12:24:38,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [1613] [2024-11-02 12:24:38,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1641] [2024-11-02 12:24:38,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1860] [2024-11-02 12:24:38,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1895] [2024-11-02 12:24:38,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2957] [2024-11-02 12:24:38,262 WARN L251 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_b27eece6-95d7-4e2d-89c3-17d8f091a696/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c[63576,63589] [2024-11-02 12:24:38,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:38,340 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:38,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38 WrapperNode [2024-11-02 12:24:38,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:38,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:38,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:38,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:38,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,462 INFO L138 Inliner]: procedures = 130, calls = 200, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1066 [2024-11-02 12:24:38,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:38,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:38,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:38,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:38,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:38,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:38,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:38,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:38,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (1/1) ... [2024-11-02 12:24:38,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:38,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:38,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:38,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-02 12:24:38,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-02 12:24:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-02 12:24:38,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-02 12:24:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-02 12:24:38,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-02 12:24:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2024-11-02 12:24:38,660 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2024-11-02 12:24:38,660 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:24:38,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:24:38,661 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:24:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:24:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 12:24:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 12:24:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:24:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:24:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 12:24:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 12:24:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:24:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:24:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:24:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:24:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:24:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:24:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 12:24:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 12:24:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-02 12:24:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-02 12:24:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:24:38,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:24:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:24:38,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:24:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:24:38,672 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:24:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:24:38,672 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:24:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:24:38,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:24:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:24:38,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:24:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:24:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:24:38,674 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:24:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-02 12:24:38,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-02 12:24:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:38,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:39,021 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:39,028 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:40,528 INFO L? ?]: Removed 541 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:40,528 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:41,520 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:41,521 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:24:41,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:41 BoogieIcfgContainer [2024-11-02 12:24:41,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:41,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:41,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:41,529 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:41,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:37" (1/3) ... [2024-11-02 12:24:41,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb88576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:41, skipping insertion in model container [2024-11-02 12:24:41,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:38" (2/3) ... [2024-11-02 12:24:41,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb88576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:41, skipping insertion in model container [2024-11-02 12:24:41,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:41" (3/3) ... [2024-11-02 12:24:41,533 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product25.cil.c [2024-11-02 12:24:41,555 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:41,555 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:41,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:41,666 INFO L333 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, 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;@32f867e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:41,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 110 states have internal predecessors, (141), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-02 12:24:41,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-02 12:24:41,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:41,691 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:41,692 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:41,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:41,700 INFO L85 PathProgramCache]: Analyzing trace with hash 667904341, now seen corresponding path program 1 times [2024-11-02 12:24:41,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:41,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796447843] [2024-11-02 12:24:41,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:41,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:42,137 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:24:42,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:42,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796447843] [2024-11-02 12:24:42,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796447843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:42,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:42,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:24:42,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011264418] [2024-11-02 12:24:42,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:42,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:24:42,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:42,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:24:42,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:24:42,179 INFO L87 Difference]: Start difference. First operand has 187 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 110 states have internal predecessors, (141), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:24:42,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:42,331 INFO L93 Difference]: Finished difference Result 282 states and 377 transitions. [2024-11-02 12:24:42,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:24:42,337 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2024-11-02 12:24:42,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:42,351 INFO L225 Difference]: With dead ends: 282 [2024-11-02 12:24:42,351 INFO L226 Difference]: Without dead ends: 184 [2024-11-02 12:24:42,357 INFO L431 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 [2024-11-02 12:24:42,361 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:42,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:24:42,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-02 12:24:42,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-02 12:24:42,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 105 states have (on average 1.2857142857142858) internal successors, (135), 107 states have internal predecessors, (135), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-02 12:24:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 246 transitions. [2024-11-02 12:24:42,428 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 246 transitions. Word has length 65 [2024-11-02 12:24:42,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:42,429 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 246 transitions. [2024-11-02 12:24:42,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:24:42,430 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 246 transitions. [2024-11-02 12:24:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-02 12:24:42,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:42,438 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:42,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:24:42,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:42,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:42,439 INFO L85 PathProgramCache]: Analyzing trace with hash 487121133, now seen corresponding path program 1 times [2024-11-02 12:24:42,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:42,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332037660] [2024-11-02 12:24:42,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:42,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:24:42,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:42,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332037660] [2024-11-02 12:24:42,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332037660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:42,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:42,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:24:42,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935373004] [2024-11-02 12:24:42,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:42,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:24:42,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:42,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:24:42,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:42,802 INFO L87 Difference]: Start difference. First operand 184 states and 246 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:24:43,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:43,013 INFO L93 Difference]: Finished difference Result 278 states and 362 transitions. [2024-11-02 12:24:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:24:43,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2024-11-02 12:24:43,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:43,019 INFO L225 Difference]: With dead ends: 278 [2024-11-02 12:24:43,020 INFO L226 Difference]: Without dead ends: 186 [2024-11-02 12:24:43,024 INFO L431 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 [2024-11-02 12:24:43,025 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:43,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 417 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:24:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-02 12:24:43,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2024-11-02 12:24:43,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-02 12:24:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 248 transitions. [2024-11-02 12:24:43,050 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 248 transitions. Word has length 66 [2024-11-02 12:24:43,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:43,051 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 248 transitions. [2024-11-02 12:24:43,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:24:43,052 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 248 transitions. [2024-11-02 12:24:43,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-02 12:24:43,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:43,055 INFO L215 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] [2024-11-02 12:24:43,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:24:43,056 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:43,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash -341734870, now seen corresponding path program 1 times [2024-11-02 12:24:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:43,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834549913] [2024-11-02 12:24:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:43,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:24:43,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:43,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834549913] [2024-11-02 12:24:43,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834549913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:43,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:43,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:24:43,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724109086] [2024-11-02 12:24:43,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:43,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:24:43,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:43,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:24:43,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:43,258 INFO L87 Difference]: Start difference. First operand 186 states and 248 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:24:43,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:43,489 INFO L93 Difference]: Finished difference Result 407 states and 563 transitions. [2024-11-02 12:24:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:24:43,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 71 [2024-11-02 12:24:43,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:43,493 INFO L225 Difference]: With dead ends: 407 [2024-11-02 12:24:43,493 INFO L226 Difference]: Without dead ends: 239 [2024-11-02 12:24:43,498 INFO L431 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 [2024-11-02 12:24:43,500 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 59 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:43,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 417 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:24:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-02 12:24:43,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 234. [2024-11-02 12:24:43,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 141 states have (on average 1.3617021276595744) internal successors, (192), 143 states have internal predecessors, (192), 70 states have call successors, (70), 22 states have call predecessors, (70), 22 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-02 12:24:43,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 331 transitions. [2024-11-02 12:24:43,544 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 331 transitions. Word has length 71 [2024-11-02 12:24:43,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:43,545 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 331 transitions. [2024-11-02 12:24:43,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:24:43,545 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 331 transitions. [2024-11-02 12:24:43,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-02 12:24:43,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:43,549 INFO L215 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] [2024-11-02 12:24:43,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:24:43,549 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:43,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:43,550 INFO L85 PathProgramCache]: Analyzing trace with hash -542013129, now seen corresponding path program 1 times [2024-11-02 12:24:43,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:43,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708057849] [2024-11-02 12:24:43,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:43,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:24:43,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:43,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708057849] [2024-11-02 12:24:43,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708057849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:24:43,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230116429] [2024-11-02 12:24:43,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:43,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:24:43,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:43,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:24:43,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27eece6-95d7-4e2d-89c3-17d8f091a696/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:24:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:44,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:24:44,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:24:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:24:44,463 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:24:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:24:44,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230116429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:24:44,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1133743401] [2024-11-02 12:24:44,619 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-02 12:24:44,620 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:24:44,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:24:44,631 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:24:44,632 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs