./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product18.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_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/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_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/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_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/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 f70ac21a1decd51d5f9571a5be4450629a9ca28f5aa1158e9564f33ba44bf6ef --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:31:54,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:31:54,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:31:54,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:31:54,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:31:54,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:31:54,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:31:54,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:31:54,244 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:31:54,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:31:54,245 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:31:54,245 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:31:54,246 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:31:54,246 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:31:54,247 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:31:54,248 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:31:54,250 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:31:54,251 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:31:54,252 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:31:54,252 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:31:54,252 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:31:54,257 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:31:54,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:31:54,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:31:54,258 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:31:54,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:31:54,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:31:54,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:31:54,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:31:54,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:31:54,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:31:54,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:31:54,260 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:31:54,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:31:54,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:31:54,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:31:54,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:31:54,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:31:54,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:31:54,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:31:54,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:31:54,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:31:54,264 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:31:54,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:31:54,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:31:54,265 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:31:54,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:31:54,265 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_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70ac21a1decd51d5f9571a5be4450629a9ca28f5aa1158e9564f33ba44bf6ef [2024-11-02 12:31:54,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:31:54,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:31:54,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:31:54,599 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:31:54,600 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:31:54,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec7_product18.cil.c Unable to find full path for "g++" [2024-11-02 12:31:56,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:31:57,147 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:31:57,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c [2024-11-02 12:31:57,168 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/data/c4c2c4870/270ce85e8f8645918ceb04fd2f66ce32/FLAG4d5a06670 [2024-11-02 12:31:57,413 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/data/c4c2c4870/270ce85e8f8645918ceb04fd2f66ce32 [2024-11-02 12:31:57,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:31:57,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:31:57,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:31:57,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:31:57,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:31:57,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:31:57" (1/1) ... [2024-11-02 12:31:57,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b057a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:57, skipping insertion in model container [2024-11-02 12:31:57,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:31:57" (1/1) ... [2024-11-02 12:31:57,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:31:58,204 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_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c[45803,45816] [2024-11-02 12:31:58,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:31:58,359 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:31:58,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-02 12:31:58,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [66] [2024-11-02 12:31:58,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] [2024-11-02 12:31:58,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [481] [2024-11-02 12:31:58,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1561] [2024-11-02 12:31:58,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1973] [2024-11-02 12:31:58,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1982] [2024-11-02 12:31:58,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2274] [2024-11-02 12:31:58,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2373] [2024-11-02 12:31:58,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2658] [2024-11-02 12:31:58,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [2874] [2024-11-02 12:31:58,462 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_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c[45803,45816] [2024-11-02 12:31:58,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:31:58,528 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:31:58,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58 WrapperNode [2024-11-02 12:31:58,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:31:58,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:31:58,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:31:58,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:31:58,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,653 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 59, calls inlined = 50, statements flattened = 906 [2024-11-02 12:31:58,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:31:58,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:31:58,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:31:58,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:31:58,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:31:58,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:31:58,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:31:58,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:31:58,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:31:58,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:58,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:31:58,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:31:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:31:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:31:58,889 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:31:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:31:58,890 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 12:31:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 12:31:58,890 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:31:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:31:58,891 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 12:31:58,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 12:31:58,893 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:31:58,894 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:31:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:31:58,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:31:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:31:58,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:31:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:31:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 12:31:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 12:31:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:31:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:31:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:31:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:31:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:31:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:31:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:31:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:31:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:31:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:31:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:31:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:31:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:31:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:31:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:31:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:31:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:31:59,160 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:31:59,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:32:00,292 INFO L? ?]: Removed 393 outVars from TransFormulas that were not future-live. [2024-11-02 12:32:00,292 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:32:01,013 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:32:01,015 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:32:01,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:01 BoogieIcfgContainer [2024-11-02 12:32:01,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:32:01,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:32:01,019 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:32:01,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:32:01,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:31:57" (1/3) ... [2024-11-02 12:32:01,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfe5364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:01, skipping insertion in model container [2024-11-02 12:32:01,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (2/3) ... [2024-11-02 12:32:01,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfe5364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:01, skipping insertion in model container [2024-11-02 12:32:01,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:01" (3/3) ... [2024-11-02 12:32:01,027 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product18.cil.c [2024-11-02 12:32:01,045 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:32:01,046 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:32:01,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:32:01,142 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;@2d98ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:32:01,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:32:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-02 12:32:01,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-02 12:32:01,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:01,164 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] [2024-11-02 12:32:01,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:32:01,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:01,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1708299839, now seen corresponding path program 1 times [2024-11-02 12:32:01,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:01,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686288387] [2024-11-02 12:32:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:01,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:01,643 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 12:32:01,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:01,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686288387] [2024-11-02 12:32:01,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686288387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:01,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:01,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:32:01,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084681283] [2024-11-02 12:32:01,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:01,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:32:01,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:01,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:32:01,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:32:01,681 INFO L87 Difference]: Start difference. First operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:32:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:01,794 INFO L93 Difference]: Finished difference Result 201 states and 266 transitions. [2024-11-02 12:32:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:32:01,797 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 53 [2024-11-02 12:32:01,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:01,810 INFO L225 Difference]: With dead ends: 201 [2024-11-02 12:32:01,811 INFO L226 Difference]: Without dead ends: 139 [2024-11-02 12:32:01,815 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 12:32:01,818 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:01,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:32:01,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-02 12:32:01,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-02 12:32:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 85 states have internal predecessors, (112), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-02 12:32:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 187 transitions. [2024-11-02 12:32:01,886 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 187 transitions. Word has length 53 [2024-11-02 12:32:01,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:01,891 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 187 transitions. [2024-11-02 12:32:01,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:32:01,892 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 187 transitions. [2024-11-02 12:32:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-02 12:32:01,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:01,896 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] [2024-11-02 12:32:01,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:32:01,896 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:32:01,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:01,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1575758557, now seen corresponding path program 1 times [2024-11-02 12:32:01,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:01,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119852414] [2024-11-02 12:32:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:01,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:02,197 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 12:32:02,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:02,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119852414] [2024-11-02 12:32:02,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119852414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:02,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:02,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:32:02,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522838866] [2024-11-02 12:32:02,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:02,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:32:02,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:02,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:32:02,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:32:02,202 INFO L87 Difference]: Start difference. First operand 139 states and 187 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:32:02,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:02,342 INFO L93 Difference]: Finished difference Result 197 states and 254 transitions. [2024-11-02 12:32:02,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:32:02,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 54 [2024-11-02 12:32:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:02,345 INFO L225 Difference]: With dead ends: 197 [2024-11-02 12:32:02,345 INFO L226 Difference]: Without dead ends: 141 [2024-11-02 12:32:02,346 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 12:32:02,347 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:02,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:32:02,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-02 12:32:02,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-02 12:32:02,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 87 states have internal predecessors, (114), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-02 12:32:02,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 189 transitions. [2024-11-02 12:32:02,366 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 189 transitions. Word has length 54 [2024-11-02 12:32:02,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:02,367 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 189 transitions. [2024-11-02 12:32:02,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:32:02,367 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 189 transitions. [2024-11-02 12:32:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-02 12:32:02,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:02,370 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] [2024-11-02 12:32:02,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:32:02,370 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:32:02,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:02,371 INFO L85 PathProgramCache]: Analyzing trace with hash -3087512, now seen corresponding path program 1 times [2024-11-02 12:32:02,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:02,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762644973] [2024-11-02 12:32:02,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:02,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:02,494 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 12:32:02,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:02,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762644973] [2024-11-02 12:32:02,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762644973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:02,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:02,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:32:02,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698151009] [2024-11-02 12:32:02,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:02,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:32:02,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:02,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:32:02,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:32:02,497 INFO L87 Difference]: Start difference. First operand 141 states and 189 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:32:02,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:02,607 INFO L93 Difference]: Finished difference Result 312 states and 437 transitions. [2024-11-02 12:32:02,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:32:02,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 59 [2024-11-02 12:32:02,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:02,610 INFO L225 Difference]: With dead ends: 312 [2024-11-02 12:32:02,610 INFO L226 Difference]: Without dead ends: 189 [2024-11-02 12:32:02,611 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 12:32:02,613 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 57 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:02,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 333 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:32:02,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-02 12:32:02,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 184. [2024-11-02 12:32:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 118 states have (on average 1.4152542372881356) internal successors, (167), 119 states have internal predecessors, (167), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-02 12:32:02,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 264 transitions. [2024-11-02 12:32:02,651 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 264 transitions. Word has length 59 [2024-11-02 12:32:02,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:02,652 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 264 transitions. [2024-11-02 12:32:02,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:32:02,652 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 264 transitions. [2024-11-02 12:32:02,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-02 12:32:02,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:02,660 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] [2024-11-02 12:32:02,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:32:02,661 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:32:02,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1537237601, now seen corresponding path program 1 times [2024-11-02 12:32:02,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:02,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413815037] [2024-11-02 12:32:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:02,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:02,911 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 12:32:02,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:02,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413815037] [2024-11-02 12:32:02,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413815037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:32:02,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239473398] [2024-11-02 12:32:02,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:02,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:32:02,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:32:02,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:32:02,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e1fc46-8733-4a22-b62d-5fd297c1e0a1/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:32:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:03,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:32:03,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:32:03,464 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 12:32:03,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:32:03,585 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 12:32:03,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239473398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:32:03,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [269797130] [2024-11-02 12:32:03,606 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2024-11-02 12:32:03,606 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:32:03,610 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:32:03,615 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:32:03,616 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs