./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/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_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/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_65ce2bf8-62f5-4924-8acb-37c324cc51bf/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 f422b02f04909f595cd81c18f65f163bde7189dd9d2c25d22c48d8d4d89787b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:08:53,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:08:53,869 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:08:53,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:08:53,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:08:53,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:08:53,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:08:53,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:08:53,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:08:53,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:08:53,931 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:08:53,932 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:08:53,932 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:08:53,934 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:08:53,935 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:08:53,935 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:08:53,935 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:08:53,936 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:08:53,936 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:08:53,937 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:08:53,937 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:08:53,938 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:08:53,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:08:53,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:08:53,940 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:08:53,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:08:53,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:08:53,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:08:53,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:08:53,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:08:53,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:08:53,943 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:08:53,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:08:53,944 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:08:53,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:08:53,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:08:53,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:08:53,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:08:53,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:08:53,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:08:53,946 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:08:53,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:08:53,947 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:08:53,947 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:08:53,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:08:53,948 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_65ce2bf8-62f5-4924-8acb-37c324cc51bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f422b02f04909f595cd81c18f65f163bde7189dd9d2c25d22c48d8d4d89787b5 [2023-11-19 05:08:54,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:08:54,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:08:54,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:08:54,265 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:08:54,266 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:08:54,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2023-11-19 05:08:57,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:08:57,824 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:08:57,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2023-11-19 05:08:57,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/data/58f20f580/45b8d94938194b1c8c927ede43508c20/FLAG138802057 [2023-11-19 05:08:57,878 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/data/58f20f580/45b8d94938194b1c8c927ede43508c20 [2023-11-19 05:08:57,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:08:57,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:08:57,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:08:57,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:08:57,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:08:57,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:57" (1/1) ... [2023-11-19 05:08:57,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f44473e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:57, skipping insertion in model container [2023-11-19 05:08:57,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:57" (1/1) ... [2023-11-19 05:08:57,981 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:08:58,337 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_65ce2bf8-62f5-4924-8acb-37c324cc51bf/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2023-11-19 05:08:58,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:08:58,505 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:08:58,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2023-11-19 05:08:58,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2023-11-19 05:08:58,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [826] [2023-11-19 05:08:58,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [875] [2023-11-19 05:08:58,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1044] [2023-11-19 05:08:58,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1242] [2023-11-19 05:08:58,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1251] [2023-11-19 05:08:58,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2325] [2023-11-19 05:08:58,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2342] [2023-11-19 05:08:58,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2581] [2023-11-19 05:08:58,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2601] [2023-11-19 05:08:58,600 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_65ce2bf8-62f5-4924-8acb-37c324cc51bf/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2023-11-19 05:08:58,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:08:58,710 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:08:58,718 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:08:58,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58 WrapperNode [2023-11-19 05:08:58,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:08:58,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:08:58,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:08:58,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:08:58,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,814 INFO L138 Inliner]: procedures = 113, calls = 154, calls flagged for inlining = 41, calls inlined = 36, statements flattened = 709 [2023-11-19 05:08:58,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:08:58,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:08:58,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:08:58,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:08:58,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:08:58,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:08:58,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:08:58,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:08:58,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (1/1) ... [2023-11-19 05:08:58,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:08:58,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:08:58,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:08:58,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:08:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-19 05:08:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-19 05:08:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-19 05:08:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-19 05:08:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 05:08:58,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 05:08:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-19 05:08:58,993 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-19 05:08:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 05:08:58,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 05:08:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 05:08:58,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 05:08:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 05:08:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 05:08:58,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 05:08:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-19 05:08:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-19 05:08:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 05:08:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 05:08:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:08:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-19 05:08:59,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-19 05:08:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 05:08:59,001 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 05:08:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 05:08:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 05:08:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 05:08:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 05:08:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:08:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-19 05:08:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-19 05:08:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:08:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:08:59,297 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:08:59,303 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:09:00,194 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:09:00,668 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:09:00,669 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:09:00,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:00 BoogieIcfgContainer [2023-11-19 05:09:00,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:09:00,688 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:09:00,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:09:00,692 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:09:00,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:08:57" (1/3) ... [2023-11-19 05:09:00,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abab4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:00, skipping insertion in model container [2023-11-19 05:09:00,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:58" (2/3) ... [2023-11-19 05:09:00,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abab4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:00, skipping insertion in model container [2023-11-19 05:09:00,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:00" (3/3) ... [2023-11-19 05:09:00,698 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product36.cil.c [2023-11-19 05:09:00,720 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:09:00,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:09:00,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:09:00,802 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;@328eceb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:09:00,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:09:00,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 78 states have internal predecessors, (106), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 05:09:00,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 05:09:00,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:00,823 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:09:00,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:09:00,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:00,830 INFO L85 PathProgramCache]: Analyzing trace with hash 444061353, now seen corresponding path program 1 times [2023-11-19 05:09:00,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:09:00,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410171238] [2023-11-19 05:09:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:00,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:09:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:09:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 05:09:01,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:09:01,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410171238] [2023-11-19 05:09:01,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410171238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:09:01,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:09:01,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:09:01,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464428539] [2023-11-19 05:09:01,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:09:01,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:09:01,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:09:01,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:09:01,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:09:01,291 INFO L87 Difference]: Start difference. First operand has 122 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 78 states have internal predecessors, (106), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:09:01,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:09:01,407 INFO L93 Difference]: Finished difference Result 201 states and 271 transitions. [2023-11-19 05:09:01,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:09:01,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2023-11-19 05:09:01,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:09:01,421 INFO L225 Difference]: With dead ends: 201 [2023-11-19 05:09:01,421 INFO L226 Difference]: Without dead ends: 119 [2023-11-19 05:09:01,426 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 05:09:01,430 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:09:01,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:09:01,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-19 05:09:01,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-11-19 05:09:01,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 73 states have (on average 1.36986301369863) internal successors, (100), 75 states have internal predecessors, (100), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 05:09:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 161 transitions. [2023-11-19 05:09:01,485 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 161 transitions. Word has length 49 [2023-11-19 05:09:01,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:09:01,487 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 161 transitions. [2023-11-19 05:09:01,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:09:01,488 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 161 transitions. [2023-11-19 05:09:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 05:09:01,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:01,492 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:09:01,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:09:01,492 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:09:01,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:01,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1607980163, now seen corresponding path program 1 times [2023-11-19 05:09:01,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:09:01,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121645846] [2023-11-19 05:09:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:01,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:09:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:09:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 05:09:01,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:09:01,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121645846] [2023-11-19 05:09:01,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121645846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:09:01,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:09:01,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:09:01,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835355655] [2023-11-19 05:09:01,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:09:01,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:09:01,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:09:01,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:09:01,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:09:01,711 INFO L87 Difference]: Start difference. First operand 119 states and 161 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:09:01,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:09:01,804 INFO L93 Difference]: Finished difference Result 197 states and 256 transitions. [2023-11-19 05:09:01,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:09:01,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 50 [2023-11-19 05:09:01,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:09:01,807 INFO L225 Difference]: With dead ends: 197 [2023-11-19 05:09:01,807 INFO L226 Difference]: Without dead ends: 121 [2023-11-19 05:09:01,808 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 05:09:01,810 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:09:01,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:09:01,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-19 05:09:01,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-19 05:09:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 75 states have (on average 1.36) internal successors, (102), 77 states have internal predecessors, (102), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 05:09:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 163 transitions. [2023-11-19 05:09:01,827 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 163 transitions. Word has length 50 [2023-11-19 05:09:01,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:09:01,828 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 163 transitions. [2023-11-19 05:09:01,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:09:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 163 transitions. [2023-11-19 05:09:01,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 05:09:01,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:01,831 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 05:09:01,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:09:01,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:09:01,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:01,832 INFO L85 PathProgramCache]: Analyzing trace with hash -985633491, now seen corresponding path program 1 times [2023-11-19 05:09:01,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:09:01,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451655989] [2023-11-19 05:09:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:01,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:09:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:09:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 05:09:02,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:09:02,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451655989] [2023-11-19 05:09:02,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451655989] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:09:02,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546221893] [2023-11-19 05:09:02,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:02,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:09:02,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:02,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:09:02,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ce2bf8-62f5-4924-8acb-37c324cc51bf/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:09:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:09:02,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:09:02,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:09:02,483 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 05:09:02,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:09:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 05:09:02,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546221893] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:09:02,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1163642952] [2023-11-19 05:09:02,568 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2023-11-19 05:09:02,569 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:09:02,574 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:09:02,579 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:09:02,580 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:09:26,958 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2023-11-19 05:09:27,167 INFO L180 IcfgInterpreter]: Interpretation finished