./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product27.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_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/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_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/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_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/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 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:23:51,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:23:51,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:23:51,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:23:51,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:23:51,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:23:51,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:23:51,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:23:51,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:23:51,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:23:51,636 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:23:51,636 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:23:51,637 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:23:51,639 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:23:51,639 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:23:51,640 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:23:51,641 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:23:51,641 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:23:51,642 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:23:51,642 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:23:51,642 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:23:51,648 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:23:51,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:23:51,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:23:51,650 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:23:51,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:23:51,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:23:51,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:23:51,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:23:51,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:23:51,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:23:51,652 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:23:51,653 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:23:51,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:23:51,668 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:23:51,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:23:51,669 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:23:51,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:23:51,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:51,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:23:51,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:23:51,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:23:51,671 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:23:51,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:23:51,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:23:51,672 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:23:51,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:23:51,673 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_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f [2024-11-02 11:23:51,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:23:52,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:23:52,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:23:52,025 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:23:52,026 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:23:52,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c Unable to find full path for "g++" [2024-11-02 11:23:54,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:23:54,768 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:23:54,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c [2024-11-02 11:23:54,790 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/data/8ce7cb377/f384985dc44a4b55806ba2ab71974b35/FLAG2fabaa323 [2024-11-02 11:23:54,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/data/8ce7cb377/f384985dc44a4b55806ba2ab71974b35 [2024-11-02 11:23:54,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:23:54,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:23:54,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:54,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:23:54,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:23:54,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:54" (1/1) ... [2024-11-02 11:23:54,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c56529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:54, skipping insertion in model container [2024-11-02 11:23:54,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:54" (1/1) ... [2024-11-02 11:23:54,893 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:23:55,419 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_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2024-11-02 11:23:55,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:55,651 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:23:55,663 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-02 11:23:55,667 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1128] [2024-11-02 11:23:55,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1525] [2024-11-02 11:23:55,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1534] [2024-11-02 11:23:55,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1572] [2024-11-02 11:23:55,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1670] [2024-11-02 11:23:55,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1980] [2024-11-02 11:23:55,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2346] [2024-11-02 11:23:55,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2568] [2024-11-02 11:23:55,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2585] [2024-11-02 11:23:55,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2604] [2024-11-02 11:23:55,748 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_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2024-11-02 11:23:55,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:55,894 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:23:55,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55 WrapperNode [2024-11-02 11:23:55,895 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:55,896 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:55,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:23:55,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:23:55,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:55,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,026 INFO L138 Inliner]: procedures = 133, calls = 207, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1129 [2024-11-02 11:23:56,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:56,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:23:56,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:23:56,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:23:56,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:23:56,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:23:56,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:23:56,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:23:56,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (1/1) ... [2024-11-02 11:23:56,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:56,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:56,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:23:56,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:23:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-02 11:23:56,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-02 11:23:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-02 11:23:56,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-02 11:23:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 11:23:56,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 11:23:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-02 11:23:56,185 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-02 11:23:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 11:23:56,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 11:23:56,187 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 11:23:56,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 11:23:56,187 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 11:23:56,187 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 11:23:56,188 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 11:23:56,188 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 11:23:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 11:23:56,190 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 11:23:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 11:23:56,190 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 11:23:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-02 11:23:56,190 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-02 11:23:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 11:23:56,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 11:23:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:23:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 11:23:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 11:23:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-02 11:23:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-02 11:23:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 11:23:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 11:23:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 11:23:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 11:23:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 11:23:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 11:23:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 11:23:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 11:23:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 11:23:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 11:23:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 11:23:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 11:23:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:23:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 11:23:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 11:23:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-02 11:23:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-02 11:23:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:23:56,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:23:56,436 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:23:56,438 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:23:57,638 INFO L? ?]: Removed 567 outVars from TransFormulas that were not future-live. [2024-11-02 11:23:57,638 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:23:58,546 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:23:58,547 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:23:58,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:58 BoogieIcfgContainer [2024-11-02 11:23:58,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:23:58,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:23:58,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:23:58,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:23:58,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:23:54" (1/3) ... [2024-11-02 11:23:58,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256549c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:58, skipping insertion in model container [2024-11-02 11:23:58,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:55" (2/3) ... [2024-11-02 11:23:58,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256549c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:58, skipping insertion in model container [2024-11-02 11:23:58,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:58" (3/3) ... [2024-11-02 11:23:58,560 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product27.cil.c [2024-11-02 11:23:58,579 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:23:58,579 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:23:58,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:23:58,677 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;@47e52f08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:23:58,677 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:23:58,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-02 11:23:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-02 11:23:58,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:58,702 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, 1] [2024-11-02 11:23:58,702 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:58,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2066820473, now seen corresponding path program 1 times [2024-11-02 11:23:58,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:58,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136879845] [2024-11-02 11:23:58,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:58,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:59,273 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 11:23:59,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:59,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136879845] [2024-11-02 11:23:59,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136879845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:59,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:59,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:59,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644708012] [2024-11-02 11:23:59,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:59,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:23:59,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:59,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:23:59,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:23:59,307 INFO L87 Difference]: Start difference. First operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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 11:23:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:59,499 INFO L93 Difference]: Finished difference Result 290 states and 389 transitions. [2024-11-02 11:23:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:23:59,506 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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 67 [2024-11-02 11:23:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:59,520 INFO L225 Difference]: With dead ends: 290 [2024-11-02 11:23:59,521 INFO L226 Difference]: Without dead ends: 188 [2024-11-02 11:23:59,527 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 11:23:59,533 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:59,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:23:59,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-02 11:23:59,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-11-02 11:23:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-02 11:23:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 252 transitions. [2024-11-02 11:23:59,596 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 252 transitions. Word has length 67 [2024-11-02 11:23:59,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:59,598 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 252 transitions. [2024-11-02 11:23:59,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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 11:23:59,598 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 252 transitions. [2024-11-02 11:23:59,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-02 11:23:59,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:59,602 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, 1, 1] [2024-11-02 11:23:59,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:23:59,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:59,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:59,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1263466955, now seen corresponding path program 1 times [2024-11-02 11:23:59,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:59,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495400313] [2024-11-02 11:23:59,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:59,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:59,895 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 11:23:59,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:59,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495400313] [2024-11-02 11:23:59,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495400313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:59,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:59,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:23:59,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693088882] [2024-11-02 11:23:59,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:59,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:23:59,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:59,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:23:59,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:23:59,904 INFO L87 Difference]: Start difference. First operand 188 states and 252 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 11:24:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:00,106 INFO L93 Difference]: Finished difference Result 286 states and 374 transitions. [2024-11-02 11:24:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:24:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 68 [2024-11-02 11:24:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:00,112 INFO L225 Difference]: With dead ends: 286 [2024-11-02 11:24:00,112 INFO L226 Difference]: Without dead ends: 190 [2024-11-02 11:24:00,116 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 11:24:00,117 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:24:00,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:24:00,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-02 11:24:00,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-02 11:24:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.275229357798165) internal successors, (139), 111 states have internal predecessors, (139), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-02 11:24:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 254 transitions. [2024-11-02 11:24:00,151 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 254 transitions. Word has length 68 [2024-11-02 11:24:00,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:00,152 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 254 transitions. [2024-11-02 11:24:00,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 11:24:00,154 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2024-11-02 11:24:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-02 11:24:00,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:00,158 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, 1] [2024-11-02 11:24:00,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:24:00,162 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:24:00,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:00,163 INFO L85 PathProgramCache]: Analyzing trace with hash -489009909, now seen corresponding path program 1 times [2024-11-02 11:24:00,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:00,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831955307] [2024-11-02 11:24:00,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:00,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:00,400 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 11:24:00,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:00,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831955307] [2024-11-02 11:24:00,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831955307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:24:00,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:24:00,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:24:00,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027052177] [2024-11-02 11:24:00,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:24:00,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:24:00,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:24:00,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:24:00,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:24:00,404 INFO L87 Difference]: Start difference. First operand 190 states and 254 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (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 11:24:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:00,598 INFO L93 Difference]: Finished difference Result 415 states and 575 transitions. [2024-11-02 11:24:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:24:00,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (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 73 [2024-11-02 11:24:00,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:00,602 INFO L225 Difference]: With dead ends: 415 [2024-11-02 11:24:00,602 INFO L226 Difference]: Without dead ends: 243 [2024-11-02 11:24:00,603 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 11:24:00,604 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 59 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:24:00,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 433 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:24:00,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-02 11:24:00,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 238. [2024-11-02 11:24:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 143 states have (on average 1.3566433566433567) internal successors, (194), 145 states have internal predecessors, (194), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-02 11:24:00,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 337 transitions. [2024-11-02 11:24:00,628 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 337 transitions. Word has length 73 [2024-11-02 11:24:00,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:00,629 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 337 transitions. [2024-11-02 11:24:00,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (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 11:24:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 337 transitions. [2024-11-02 11:24:00,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-02 11:24:00,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:00,632 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, 1, 1] [2024-11-02 11:24:00,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 11:24:00,633 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:24:00,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:00,633 INFO L85 PathProgramCache]: Analyzing trace with hash 2139746153, now seen corresponding path program 1 times [2024-11-02 11:24:00,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:00,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422382290] [2024-11-02 11:24:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:00,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:00,837 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 11:24:00,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:00,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422382290] [2024-11-02 11:24:00,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422382290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:24:00,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457152520] [2024-11-02 11:24:00,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:00,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:24:00,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:24:00,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:24:00,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56cbc6a3-3b55-4c39-8d88-cad9cb7a7e6e/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:24:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:01,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 11:24:01,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:24:01,399 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 11:24:01,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:24:01,536 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 11:24:01,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457152520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:24:01,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [391401792] [2024-11-02 11:24:01,567 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-02 11:24:01,567 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:24:01,572 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 11:24:01,578 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 11:24:01,579 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs