./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--net--fddi--skfp--skfp.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--net--fddi--skfp--skfp.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ae1b193bf427d83a3f1f53fad81176ea90d119b11231d4362e4eda124174609f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:24:05,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:24:05,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:24:05,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:24:05,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:24:05,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:24:05,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:24:05,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:24:05,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:24:05,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:24:05,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:24:05,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:24:05,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:24:05,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:24:05,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:24:05,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:24:05,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:24:05,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:24:05,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:24:05,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:24:05,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:24:05,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:24:05,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:24:05,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:24:05,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:24:05,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:24:05,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:24:05,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:24:05,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:24:06,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:24:06,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:24:06,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:24:06,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:24:06,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:24:06,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:24:06,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:24:06,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:24:06,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:24:06,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:24:06,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:24:06,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:24:06,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:24:06,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:24:06,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:24:06,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:24:06,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:24:06,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:24:06,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:24:06,062 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:24:06,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:24:06,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:24:06,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:24:06,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:24:06,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:24:06,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:24:06,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:24:06,065 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:24:06,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:24:06,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:24:06,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:24:06,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:24:06,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:24:06,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:24:06,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:24:06,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:24:06,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:24:06,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:24:06,068 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:24:06,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:24:06,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:24:06,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:24:06,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae1b193bf427d83a3f1f53fad81176ea90d119b11231d4362e4eda124174609f [2021-11-22 15:24:06,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:24:06,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:24:06,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:24:06,429 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:24:06,432 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:24:06,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--net--fddi--skfp--skfp.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-22 15:24:06,526 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/data/a9c2c2fe8/3cd490f04afc4ba2b118cb6213bdc1b6/FLAGacb4f78ac [2021-11-22 15:24:07,971 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:24:07,972 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--net--fddi--skfp--skfp.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-22 15:24:08,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/data/a9c2c2fe8/3cd490f04afc4ba2b118cb6213bdc1b6/FLAGacb4f78ac [2021-11-22 15:24:08,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e08fcb5-2ca4-40a5-9005-953c4c224455/bin/uautomizer-w2VwFs6gM0/data/a9c2c2fe8/3cd490f04afc4ba2b118cb6213bdc1b6 [2021-11-22 15:24:08,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:24:08,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:24:08,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:24:08,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:24:08,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:24:08,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:24:08" (1/1) ... [2021-11-22 15:24:08,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4700b2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:24:08, skipping insertion in model container [2021-11-22 15:24:08,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:24:08" (1/1) ... [2021-11-22 15:24:08,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:24:08,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:24:15,858 WARN L230 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_5e08fcb5-2ca4-40a5-9005-953c4c224455/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--net--fddi--skfp--skfp.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[553420,553433] [2021-11-22 15:24:16,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:24:16,120 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:24:17,251 WARN L230 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_5e08fcb5-2ca4-40a5-9005-953c4c224455/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--net--fddi--skfp--skfp.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[553420,553433] [2021-11-22 15:24:17,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:24:17,524 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:24:17,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:24:17 WrapperNode [2021-11-22 15:24:17,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:24:17,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:24:17,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:24:17,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:24:17,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:24:17" (1/1) ... [2021-11-22 15:24:17,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:24:17" (1/1) ...