./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:28:05,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:28:05,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:28:05,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:28:05,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:28:05,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:28:05,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:28:05,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:28:05,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:28:05,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:28:05,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:28:05,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:28:05,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:28:05,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:28:05,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:28:05,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:28:05,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:28:05,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:28:05,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:28:05,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:28:05,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:28:05,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:28:05,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:28:05,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:28:05,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:28:05,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:28:05,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:28:05,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:28:05,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:28:05,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:28:05,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:28:05,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:28:05,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:28:05,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:28:05,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:28:05,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:28:05,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:28:05,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:28:05,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:28:05,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:28:05,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:28:05,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:28:05,434 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:28:05,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:28:05,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:28:05,439 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:28:05,439 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:28:05,439 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:28:05,440 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:28:05,440 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:28:05,443 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:28:05,444 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:28:05,444 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:28:05,444 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:28:05,444 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:28:05,445 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:28:05,445 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:28:05,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:28:05,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:28:05,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:28:05,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:28:05,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:28:05,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:28:05,448 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:28:05,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:28:05,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:28:05,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:28:05,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:28:05,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:28:05,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:28:05,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:28:05,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:28:05,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:28:05,451 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:28:05,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:28:05,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:28:05,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:28:05,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:28:05,453 INFO L138 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_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-11-03 05:28:05,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:28:05,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:28:05,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:28:05,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:28:05,757 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:28:05,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-03 05:28:05,835 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data/1b7bd3b34/d807a0ae70f54b6a8b771d9a9bcf5270/FLAGfd2437e1d [2021-11-03 05:28:06,955 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:28:06,956 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-03 05:28:07,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data/1b7bd3b34/d807a0ae70f54b6a8b771d9a9bcf5270/FLAGfd2437e1d [2021-11-03 05:28:07,307 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data/1b7bd3b34/d807a0ae70f54b6a8b771d9a9bcf5270 [2021-11-03 05:28:07,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:28:07,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:28:07,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:28:07,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:28:07,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:28:07,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:28:07" (1/1) ... [2021-11-03 05:28:07,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49874fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:07, skipping insertion in model container [2021-11-03 05:28:07,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:28:07" (1/1) ... [2021-11-03 05:28:07,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:28:07,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:28:08,259 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-03 05:28:08,260 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-03 05:28:08,824 WARN L228 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_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-03 05:28:09,264 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,264 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,265 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,265 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,270 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,271 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,271 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,272 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,396 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,398 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,414 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,425 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,441 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,448 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,449 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,450 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,485 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,486 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,502 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,530 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,531 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,538 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,542 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,542 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,552 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,561 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,563 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,569 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,577 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,578 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,651 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,663 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,670 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,678 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,706 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,750 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,759 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,761 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,787 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,787 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:09,874 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,020 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,035 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,061 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,063 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,063 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,068 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,070 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,070 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,076 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,077 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,078 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,078 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,080 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,080 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:28:10,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:28:10,209 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 05:28:10,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@626a9ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:10, skipping insertion in model container [2021-11-03 05:28:10,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:28:10,211 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:28:10,214 INFO L168 Benchmark]: Toolchain (without parser) took 2900.77 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 73.6 MB in the beginning and 64.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:28:10,215 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory was 82.1 MB in the beginning and 82.0 MB in the end (delta: 64.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:28:10,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2898.31 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 73.6 MB in the beginning and 64.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:28:10,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory was 82.1 MB in the beginning and 82.0 MB in the end (delta: 64.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2898.31 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 73.6 MB in the beginning and 64.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6617]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:28:12,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:28:12,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:28:12,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:28:12,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:28:12,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:28:12,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:28:12,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:28:12,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:28:12,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:28:12,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:28:12,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:28:12,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:28:12,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:28:12,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:28:12,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:28:12,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:28:12,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:28:12,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:28:12,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:28:12,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:28:12,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:28:12,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:28:12,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:28:12,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:28:12,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:28:12,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:28:12,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:28:12,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:28:12,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:28:12,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:28:12,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:28:12,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:28:12,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:28:12,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:28:12,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:28:12,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:28:12,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:28:12,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:28:12,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:28:12,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:28:12,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:28:12,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:28:12,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:28:12,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:28:12,813 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:28:12,813 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:28:12,813 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:28:12,813 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:28:12,814 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:28:12,814 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:28:12,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:28:12,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:28:12,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:28:12,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:28:12,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:28:12,818 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:28:12,818 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:28:12,818 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:28:12,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:28:12,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:28:12,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:28:12,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:28:12,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:28:12,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:28:12,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:28:12,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:28:12,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:28:12,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:28:12,821 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:28:12,821 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:28:12,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:28:12,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:28:12,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:28:12,822 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-11-03 05:28:13,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:28:13,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:28:13,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:28:13,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:28:13,228 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:28:13,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-03 05:28:13,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data/301462777/58675a2904074ed2b2d38906db326efc/FLAG5f048f9d9 [2021-11-03 05:28:14,351 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:28:14,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-03 05:28:14,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data/301462777/58675a2904074ed2b2d38906db326efc/FLAG5f048f9d9 [2021-11-03 05:28:14,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/data/301462777/58675a2904074ed2b2d38906db326efc [2021-11-03 05:28:14,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:28:14,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:28:14,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:28:14,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:28:14,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:28:14,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:28:14" (1/1) ... [2021-11-03 05:28:14,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f3ed1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:14, skipping insertion in model container [2021-11-03 05:28:14,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:28:14" (1/1) ... [2021-11-03 05:28:14,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:28:14,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:28:15,734 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-03 05:28:15,735 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-03 05:28:16,366 WARN L228 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_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-03 05:28:17,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:28:17,788 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:28:17,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:28:17,993 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-03 05:28:17,994 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-03 05:28:18,013 WARN L228 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_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-03 05:28:18,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:28:18,350 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:28:18,583 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-03 05:28:18,584 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-03 05:28:18,593 WARN L228 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_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-03 05:28:19,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:28:19,219 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:28:19,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19 WrapperNode [2021-11-03 05:28:19,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:28:19,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:28:19,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:28:19,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:28:19,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:19,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:19,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:28:19,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:28:19,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:28:19,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:28:19,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:19,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:19,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:19,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:20,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:20,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:20,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:20,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:28:20,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:28:20,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:28:20,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:28:20,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (1/1) ... [2021-11-03 05:28:20,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:28:20,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:28:20,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:28:20,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:28:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:28:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:28:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:28:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:28:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:28:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:28:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2021-11-03 05:28:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2021-11-03 05:28:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2021-11-03 05:28:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2021-11-03 05:28:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-03 05:28:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:28:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 05:28:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2021-11-03 05:28:20,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2021-11-03 05:28:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:28:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2021-11-03 05:28:20,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2021-11-03 05:28:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-03 05:28:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:28:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:28:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:28:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:28:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:28:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:28:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:28:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:28:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:28:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2021-11-03 05:28:20,684 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2021-11-03 05:28:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:28:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:28:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:28:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:28:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-03 05:28:20,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-03 05:28:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:28:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:28:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 05:28:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:28:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:28:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 05:28:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 05:28:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:28:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2021-11-03 05:28:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2021-11-03 05:28:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:28:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2021-11-03 05:28:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2021-11-03 05:28:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:28:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:28:56,868 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 05:29:11,383 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !(0bv64 != ~bvadd64(lec_addr_delete_~____ptr___0~4.base, lec_addr_delete_~____ptr___0~4.offset));lec_addr_delete_~tmp___2~14.base, lec_addr_delete_~tmp___2~14.offset := 0bv64, 0bv64;lec_addr_delete_~entry~10.base, lec_addr_delete_~entry~10.offset := lec_addr_delete_~tmp___2~14.base, lec_addr_delete_~tmp___2~14.offset; [2021-11-03 05:29:11,384 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume 0bv64 != ~bvadd64(lec_addr_delete_~____ptr___0~4.base, lec_addr_delete_~____ptr___0~4.offset);lec_addr_delete_~__mptr___0~5.base, lec_addr_delete_~__mptr___0~5.offset := lec_addr_delete_~____ptr___0~4.base, lec_addr_delete_~____ptr___0~4.offset;lec_addr_delete_~tmp___2~14.base, lec_addr_delete_~tmp___2~14.offset := lec_addr_delete_~__mptr___0~5.base, lec_addr_delete_~__mptr___0~5.offset; [2021-11-03 05:31:21,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:31:21,561 INFO L299 CfgBuilder]: Removed 1924 assume(true) statements. [2021-11-03 05:31:21,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:31:21 BoogieIcfgContainer [2021-11-03 05:31:21,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:31:21,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:31:21,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:31:21,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:31:21,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:28:14" (1/3) ... [2021-11-03 05:31:21,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36adae49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:31:21, skipping insertion in model container [2021-11-03 05:31:21,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:28:19" (2/3) ... [2021-11-03 05:31:21,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36adae49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:31:21, skipping insertion in model container [2021-11-03 05:31:21,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:31:21" (3/3) ... [2021-11-03 05:31:21,575 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-03 05:31:21,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:31:21,581 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-03 05:31:21,636 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:31:21,642 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:31:21,642 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-03 05:31:21,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 2379 states, 2323 states have (on average 1.4860094705122686) internal successors, (3452), 2341 states have internal predecessors, (3452), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-03 05:31:21,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 05:31:21,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:31:21,742 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:31:21,742 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:31:21,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:31:21,748 INFO L85 PathProgramCache]: Analyzing trace with hash 636787877, now seen corresponding path program 1 times [2021-11-03 05:31:21,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:31:21,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065981493] [2021-11-03 05:31:21,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:31:21,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:31:21,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:31:21,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:31:21,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:31:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:31:35,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 2788 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:31:35,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:31:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:31:36,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:31:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:31:36,502 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:31:36,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065981493] [2021-11-03 05:31:36,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065981493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:31:36,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:31:36,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:31:36,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549005942] [2021-11-03 05:31:36,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:31:36,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:31:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:31:36,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:31:36,528 INFO L87 Difference]: Start difference. First operand has 2379 states, 2323 states have (on average 1.4860094705122686) internal successors, (3452), 2341 states have internal predecessors, (3452), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:31:37,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:31:37,592 INFO L93 Difference]: Finished difference Result 6954 states and 10351 transitions. [2021-11-03 05:31:37,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:31:37,594 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-03 05:31:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:31:37,635 INFO L225 Difference]: With dead ends: 6954 [2021-11-03 05:31:37,635 INFO L226 Difference]: Without dead ends: 4533 [2021-11-03 05:31:37,651 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:31:37,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2021-11-03 05:31:37,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4509. [2021-11-03 05:31:37,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4509 states, 4416 states have (on average 1.4698822463768115) internal successors, (6491), 4437 states have internal predecessors, (6491), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2021-11-03 05:31:37,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4509 states to 4509 states and 6613 transitions. [2021-11-03 05:31:37,905 INFO L78 Accepts]: Start accepts. Automaton has 4509 states and 6613 transitions. Word has length 37 [2021-11-03 05:31:37,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:31:37,905 INFO L470 AbstractCegarLoop]: Abstraction has 4509 states and 6613 transitions. [2021-11-03 05:31:37,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:31:37,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4509 states and 6613 transitions. [2021-11-03 05:31:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 05:31:37,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:31:37,911 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:31:37,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:31:38,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:31:38,127 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION === [lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:31:38,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:31:38,128 INFO L85 PathProgramCache]: Analyzing trace with hash 400817735, now seen corresponding path program 1 times [2021-11-03 05:31:38,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:31:38,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55648693] [2021-11-03 05:31:38,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:31:38,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:31:38,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:31:38,153 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:31:38,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:31:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:31:51,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 2868 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:31:51,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:31:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:31:52,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:31:53,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:31:53,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:31:53,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55648693] [2021-11-03 05:31:53,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55648693] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:31:53,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:31:53,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:31:53,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382555627] [2021-11-03 05:31:53,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:31:53,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:31:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:31:53,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:31:53,313 INFO L87 Difference]: Start difference. First operand 4509 states and 6613 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:00,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:00,706 INFO L93 Difference]: Finished difference Result 17782 states and 26495 transitions. [2021-11-03 05:32:00,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:32:00,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-03 05:32:00,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:00,799 INFO L225 Difference]: With dead ends: 17782 [2021-11-03 05:32:00,799 INFO L226 Difference]: Without dead ends: 13327 [2021-11-03 05:32:00,825 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:00,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13327 states. [2021-11-03 05:32:01,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13327 to 13271. [2021-11-03 05:32:01,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13271 states, 13028 states have (on average 1.4663033466380104) internal successors, (19103), 13057 states have internal predecessors, (19103), 175 states have call successors, (175), 54 states have call predecessors, (175), 54 states have return successors, (411), 183 states have call predecessors, (411), 175 states have call successors, (411) [2021-11-03 05:32:01,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13271 states to 13271 states and 19689 transitions. [2021-11-03 05:32:01,318 INFO L78 Accepts]: Start accepts. Automaton has 13271 states and 19689 transitions. Word has length 45 [2021-11-03 05:32:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:01,319 INFO L470 AbstractCegarLoop]: Abstraction has 13271 states and 19689 transitions. [2021-11-03 05:32:01,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:01,319 INFO L276 IsEmpty]: Start isEmpty. Operand 13271 states and 19689 transitions. [2021-11-03 05:32:01,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 05:32:01,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:01,324 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:01,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:01,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:01,537 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION === [lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:32:01,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:01,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1639119721, now seen corresponding path program 1 times [2021-11-03 05:32:01,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:01,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563475013] [2021-11-03 05:32:01,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:01,546 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:01,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:01,547 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:01,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:32:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:14,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 2870 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:32:14,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:15,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:32:15,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:16,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:32:16,553 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:16,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563475013] [2021-11-03 05:32:16,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563475013] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:16,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:16,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:32:16,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412297352] [2021-11-03 05:32:16,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:32:16,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:16,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:32:16,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:16,556 INFO L87 Difference]: Start difference. First operand 13271 states and 19689 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:23,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:23,651 INFO L93 Difference]: Finished difference Result 52746 states and 80969 transitions. [2021-11-03 05:32:23,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:32:23,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-03 05:32:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:23,864 INFO L225 Difference]: With dead ends: 52746 [2021-11-03 05:32:23,865 INFO L226 Difference]: Without dead ends: 39529 [2021-11-03 05:32:23,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:24,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39529 states. [2021-11-03 05:32:25,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39529 to 39473. [2021-11-03 05:32:25,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39473 states, 38796 states have (on average 1.462289926796577) internal successors, (56731), 38833 states have internal predecessors, (56731), 501 states have call successors, (501), 162 states have call predecessors, (501), 162 states have return successors, (2765), 549 states have call predecessors, (2765), 501 states have call successors, (2765) [2021-11-03 05:32:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39473 states to 39473 states and 59997 transitions. [2021-11-03 05:32:25,807 INFO L78 Accepts]: Start accepts. Automaton has 39473 states and 59997 transitions. Word has length 46 [2021-11-03 05:32:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:25,808 INFO L470 AbstractCegarLoop]: Abstraction has 39473 states and 59997 transitions. [2021-11-03 05:32:25,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:25,810 INFO L276 IsEmpty]: Start isEmpty. Operand 39473 states and 59997 transitions. [2021-11-03 05:32:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 05:32:25,814 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:25,814 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:25,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:26,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:26,034 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION === [lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:32:26,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash -217693832, now seen corresponding path program 1 times [2021-11-03 05:32:26,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:26,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7429860] [2021-11-03 05:32:26,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:26,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:26,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:26,049 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:26,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:32:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:39,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 2872 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:32:39,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:32:40,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:32:41,226 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:41,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7429860] [2021-11-03 05:32:41,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7429860] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:41,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:41,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:32:41,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507204315] [2021-11-03 05:32:41,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:32:41,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:41,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:32:41,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:41,228 INFO L87 Difference]: Start difference. First operand 39473 states and 59997 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:50,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:50,697 INFO L93 Difference]: Finished difference Result 157362 states and 257383 transitions. [2021-11-03 05:32:50,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:32:50,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-03 05:32:50,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:51,919 INFO L225 Difference]: With dead ends: 157362 [2021-11-03 05:32:51,919 INFO L226 Difference]: Without dead ends: 117943 [2021-11-03 05:32:52,226 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:52,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117943 states. [2021-11-03 05:32:56,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117943 to 117887. [2021-11-03 05:32:56,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117887 states, 115956 states have (on average 1.4585791162164958) internal successors, (169131), 115969 states have internal predecessors, (169131), 1431 states have call successors, (1431), 486 states have call predecessors, (1431), 486 states have return successors, (18571), 1647 states have call predecessors, (18571), 1431 states have call successors, (18571) [2021-11-03 05:32:57,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117887 states to 117887 states and 189133 transitions. [2021-11-03 05:32:57,720 INFO L78 Accepts]: Start accepts. Automaton has 117887 states and 189133 transitions. Word has length 47 [2021-11-03 05:32:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:57,720 INFO L470 AbstractCegarLoop]: Abstraction has 117887 states and 189133 transitions. [2021-11-03 05:32:57,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 117887 states and 189133 transitions. [2021-11-03 05:32:57,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-03 05:32:57,723 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:57,723 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:57,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:57,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:57,927 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION === [lec_arp_updateErr0ASSERT_VIOLATIONERROR_FUNCTION, send_to_lecdErr0ASSERT_VIOLATIONERROR_FUNCTION, lec_atm_sendErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:32:57,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:57,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1980233144, now seen corresponding path program 1 times [2021-11-03 05:32:57,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:57,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976935216] [2021-11-03 05:32:57,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:57,935 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:57,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:57,936 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:57,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9f5031b-382d-44b7-ab7a-d8d23b53ddd7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:33:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:11,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 2874 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:33:11,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:12,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:12,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:13,364 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:13,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976935216] [2021-11-03 05:33:13,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976935216] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:13,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:13,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:33:13,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724633494] [2021-11-03 05:33:13,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:33:13,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:13,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:33:13,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:33:13,368 INFO L87 Difference]: Start difference. First operand 117887 states and 189133 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:32,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:32,398 INFO L93 Difference]: Finished difference Result 470522 states and 876809 transitions. [2021-11-03 05:33:32,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:33:32,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-03 05:33:32,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:34,994 INFO L225 Difference]: With dead ends: 470522 [2021-11-03 05:33:34,994 INFO L226 Difference]: Without dead ends: 352689 [2021-11-03 05:33:36,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:33:37,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352689 states.