./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product31.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_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/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_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/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_013480bc-823c-4b4d-b80d-309b361377ac/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 28cb2c1915c61c386f3394fd53d16960f7cb856128220666f501d4f4a00b7894 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:29:24,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:29:24,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:29:24,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:29:24,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:29:24,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:29:24,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:29:24,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:29:24,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:29:24,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:29:24,920 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:29:24,921 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:29:24,921 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:29:24,921 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:29:24,922 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:29:24,922 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:29:24,926 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:29:24,926 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:29:24,927 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:29:24,927 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:29:24,928 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:29:24,928 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:29:24,929 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:29:24,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:29:24,929 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:29:24,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:29:24,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:29:24,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:29:24,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:29:24,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:29:24,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:29:24,939 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:29:24,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:29:24,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:29:24,940 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:29:24,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:29:24,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:29:24,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:29:24,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:29:24,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:29:24,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:29:24,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:29:24,945 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:29:24,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:29:24,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:29:24,946 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:29:24,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:29:24,946 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_013480bc-823c-4b4d-b80d-309b361377ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28cb2c1915c61c386f3394fd53d16960f7cb856128220666f501d4f4a00b7894 [2024-11-02 12:29:25,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:29:25,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:29:25,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:29:25,291 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:29:25,291 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:29:25,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c Unable to find full path for "g++" [2024-11-02 12:29:27,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:29:27,530 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:29:27,531 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c [2024-11-02 12:29:27,568 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/data/8fabde85d/159ef4d240f74e709f230ee69e5e3537/FLAGa403a44d0 [2024-11-02 12:29:27,590 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/data/8fabde85d/159ef4d240f74e709f230ee69e5e3537 [2024-11-02 12:29:27,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:29:27,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:29:27,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:29:27,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:29:27,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:29:27,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:29:27" (1/1) ... [2024-11-02 12:29:27,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9543e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:27, skipping insertion in model container [2024-11-02 12:29:27,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:29:27" (1/1) ... [2024-11-02 12:29:27,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:29:28,422 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_013480bc-823c-4b4d-b80d-309b361377ac/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c[56976,56989] [2024-11-02 12:29:28,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:29:28,486 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:29:28,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-02 12:29:28,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [66] [2024-11-02 12:29:28,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [115] [2024-11-02 12:29:28,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [527] [2024-11-02 12:29:28,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [752] [2024-11-02 12:29:28,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1118] [2024-11-02 12:29:28,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2198] [2024-11-02 12:29:28,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2565] [2024-11-02 12:29:28,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2574] [2024-11-02 12:29:28,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [2849] [2024-11-02 12:29:28,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2891] [2024-11-02 12:29:28,612 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_013480bc-823c-4b4d-b80d-309b361377ac/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c[56976,56989] [2024-11-02 12:29:28,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:29:28,685 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:29:28,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28 WrapperNode [2024-11-02 12:29:28,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:29:28,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:29:28,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:29:28,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:29:28,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:28,781 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:28,906 INFO L138 Inliner]: procedures = 132, calls = 207, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1043 [2024-11-02 12:29:28,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:29:28,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:29:28,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:29:28,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:29:28,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:28,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:28,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:28,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:28,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:28,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:28,995 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:29,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:29,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:29:29,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:29:29,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:29:29,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:29:29,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (1/1) ... [2024-11-02 12:29:29,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:29:29,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:29,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:29:29,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:29:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-02 12:29:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-02 12:29:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-02 12:29:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-02 12:29:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-02 12:29:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-02 12:29:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:29:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:29:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:29:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:29:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 12:29:29,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 12:29:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:29:29,108 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:29:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-02 12:29:29,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-02 12:29:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 12:29:29,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 12:29:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:29:29,110 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:29:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:29:29,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:29:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:29:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:29:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:29:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 12:29:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 12:29:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-02 12:29:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-02 12:29:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:29:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:29:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:29:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:29:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:29:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:29:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-02 12:29:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-02 12:29:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:29:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:29:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-02 12:29:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-02 12:29:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:29:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:29:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:29:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:29:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:29:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:29:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:29:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:29:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:29:29,341 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:29:29,344 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:29:30,576 INFO L? ?]: Removed 479 outVars from TransFormulas that were not future-live. [2024-11-02 12:29:30,576 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:29:31,296 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:29:31,297 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:29:31,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:29:31 BoogieIcfgContainer [2024-11-02 12:29:31,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:29:31,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:29:31,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:29:31,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:29:31,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:29:27" (1/3) ... [2024-11-02 12:29:31,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632302cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:29:31, skipping insertion in model container [2024-11-02 12:29:31,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:28" (2/3) ... [2024-11-02 12:29:31,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632302cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:29:31, skipping insertion in model container [2024-11-02 12:29:31,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:29:31" (3/3) ... [2024-11-02 12:29:31,312 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product31.cil.c [2024-11-02 12:29:31,333 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:29:31,334 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:29:31,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:29:31,458 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;@4204442d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:29:31,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:29:31,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-02 12:29:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-02 12:29:31,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:31,479 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:31,480 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:29:31,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:31,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1237510001, now seen corresponding path program 1 times [2024-11-02 12:29:31,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:31,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814975878] [2024-11-02 12:29:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:31,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:29:32,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:32,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814975878] [2024-11-02 12:29:32,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814975878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:32,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:32,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:29:32,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563834059] [2024-11-02 12:29:32,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:32,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:29:32,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:29:32,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:29:32,077 INFO L87 Difference]: Start difference. First operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:29:32,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:32,242 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2024-11-02 12:29:32,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:29:32,248 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2024-11-02 12:29:32,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:32,263 INFO L225 Difference]: With dead ends: 319 [2024-11-02 12:29:32,264 INFO L226 Difference]: Without dead ends: 198 [2024-11-02 12:29:32,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:29:32,280 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:32,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:29:32,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-02 12:29:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-02 12:29:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 118 states have internal predecessors, (148), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-02 12:29:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2024-11-02 12:29:32,365 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 64 [2024-11-02 12:29:32,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:32,367 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2024-11-02 12:29:32,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:29:32,367 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2024-11-02 12:29:32,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-02 12:29:32,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:32,373 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:32,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:29:32,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:29:32,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:32,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1784462243, now seen corresponding path program 1 times [2024-11-02 12:29:32,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:32,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137640392] [2024-11-02 12:29:32,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:32,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:32,670 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:29:32,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:32,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137640392] [2024-11-02 12:29:32,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137640392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:32,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:32,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:29:32,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089454255] [2024-11-02 12:29:32,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:32,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:29:32,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:32,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:29:32,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:32,678 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:29:32,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:32,898 INFO L93 Difference]: Finished difference Result 315 states and 410 transitions. [2024-11-02 12:29:32,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:29:32,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2024-11-02 12:29:32,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:32,903 INFO L225 Difference]: With dead ends: 315 [2024-11-02 12:29:32,905 INFO L226 Difference]: Without dead ends: 200 [2024-11-02 12:29:32,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:32,908 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:32,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 455 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:29:32,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-02 12:29:32,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-11-02 12:29:32,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-02 12:29:32,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2024-11-02 12:29:32,946 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 65 [2024-11-02 12:29:32,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:32,947 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2024-11-02 12:29:32,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:29:32,947 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2024-11-02 12:29:32,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-02 12:29:32,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:32,950 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, 1, 1] [2024-11-02 12:29:32,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:29:32,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:29:32,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:32,952 INFO L85 PathProgramCache]: Analyzing trace with hash -642308911, now seen corresponding path program 1 times [2024-11-02 12:29:32,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:32,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713829914] [2024-11-02 12:29:32,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:32,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:33,144 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:29:33,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:33,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713829914] [2024-11-02 12:29:33,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713829914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:33,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:33,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:29:33,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453995514] [2024-11-02 12:29:33,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:33,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:29:33,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:33,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:29:33,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:33,149 INFO L87 Difference]: Start difference. First operand 200 states and 267 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:29:33,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:33,320 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2024-11-02 12:29:33,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:29:33,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2024-11-02 12:29:33,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:33,325 INFO L225 Difference]: With dead ends: 430 [2024-11-02 12:29:33,325 INFO L226 Difference]: Without dead ends: 248 [2024-11-02 12:29:33,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:33,328 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 57 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:33,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 462 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:29:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-02 12:29:33,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 243. [2024-11-02 12:29:33,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 152 states have internal predecessors, (203), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-02 12:29:33,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 342 transitions. [2024-11-02 12:29:33,355 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 342 transitions. Word has length 70 [2024-11-02 12:29:33,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:33,356 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 342 transitions. [2024-11-02 12:29:33,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:29:33,357 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 342 transitions. [2024-11-02 12:29:33,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-02 12:29:33,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:33,361 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, 1, 1, 1] [2024-11-02 12:29:33,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:29:33,361 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:29:33,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:33,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1105581160, now seen corresponding path program 1 times [2024-11-02 12:29:33,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:33,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191796367] [2024-11-02 12:29:33,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:33,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:33,716 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:29:33,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:33,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191796367] [2024-11-02 12:29:33,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191796367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:29:33,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466484301] [2024-11-02 12:29:33,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:33,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:33,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:33,721 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:33,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013480bc-823c-4b4d-b80d-309b361377ac/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:29:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:34,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:29:34,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:29:34,322 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:29:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:29:34,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466484301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:29:34,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1176477178] [2024-11-02 12:29:34,503 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-02 12:29:34,503 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:29:34,507 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:29:34,513 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:29:34,514 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs