./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.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_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/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_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/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_0f9591a2-a970-40e9-aed4-397d3d914c32/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 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:48:33,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:48:33,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:48:33,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:48:33,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:48:33,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:48:33,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:48:33,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:48:33,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:48:33,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:48:33,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:48:33,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:48:33,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:48:33,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:48:33,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:48:33,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:48:33,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:48:33,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:48:33,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:48:33,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:48:33,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:48:33,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:48:33,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:48:33,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:48:33,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:48:33,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:48:33,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:48:33,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:48:33,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:48:33,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:48:33,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:48:33,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:48:33,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:48:33,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:48:33,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:48:33,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:48:33,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:48:33,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:48:33,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:48:33,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:48:33,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:48:33,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 14:48:33,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:48:33,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:48:33,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:48:33,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:48:33,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:48:33,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:48:33,258 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:48:33,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:48:33,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:48:33,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:48:33,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:48:33,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:48:33,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:48:33,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:48:33,261 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:48:33,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:48:33,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:48:33,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:48:33,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:48:33,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:48:33,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:48:33,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:48:33,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:48:33,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:48:33,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:48:33,264 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:48:33,264 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:48:33,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:48:33,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:48:33,265 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_0f9591a2-a970-40e9-aed4-397d3d914c32/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 [2021-11-22 14:48:33,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:48:33,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:48:33,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:48:33,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:48:33,544 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:48:33,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-22 14:48:33,605 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/data/a8d958c53/a68338a53e764eb2969dcc84a2cae15d/FLAG3e60fe217 [2021-11-22 14:48:34,786 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:48:34,787 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-22 14:48:34,859 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/data/a8d958c53/a68338a53e764eb2969dcc84a2cae15d/FLAG3e60fe217 [2021-11-22 14:48:34,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/data/a8d958c53/a68338a53e764eb2969dcc84a2cae15d [2021-11-22 14:48:34,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:48:34,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:48:34,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:48:34,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:48:35,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:48:35,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:34" (1/1) ... [2021-11-22 14:48:35,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4963279a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:35, skipping insertion in model container [2021-11-22 14:48:35,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:34" (1/1) ... [2021-11-22 14:48:35,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:48:35,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:48:40,348 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_0f9591a2-a970-40e9-aed4-397d3d914c32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2021-11-22 14:48:40,351 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_0f9591a2-a970-40e9-aed4-397d3d914c32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2021-11-22 14:48:40,352 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_0f9591a2-a970-40e9-aed4-397d3d914c32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2021-11-22 14:48:40,353 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_0f9591a2-a970-40e9-aed4-397d3d914c32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2021-11-22 14:48:40,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:48:40,494 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:48:41,177 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_0f9591a2-a970-40e9-aed4-397d3d914c32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2021-11-22 14:48:41,178 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_0f9591a2-a970-40e9-aed4-397d3d914c32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2021-11-22 14:48:41,179 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_0f9591a2-a970-40e9-aed4-397d3d914c32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2021-11-22 14:48:41,179 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_0f9591a2-a970-40e9-aed4-397d3d914c32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2021-11-22 14:48:41,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:48:41,610 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:48:41,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41 WrapperNode [2021-11-22 14:48:41,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:48:41,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:48:41,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:48:41,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:48:41,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:41,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:45,317 INFO L137 Inliner]: procedures = 544, calls = 3955, calls flagged for inlining = 1403, calls inlined = 11258, statements flattened = 114737 [2021-11-22 14:48:45,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:48:45,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:48:45,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:48:45,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:48:45,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:45,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:46,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:46,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:48,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:49,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:49,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:50,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:48:50,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:48:50,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:48:50,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:48:50,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (1/1) ... [2021-11-22 14:48:50,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:48:50,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:48:50,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:48:50,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f9591a2-a970-40e9-aed4-397d3d914c32/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:48:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:48:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 14:48:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 14:48:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:48:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:48:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:48:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 14:48:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 14:48:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:48:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 14:48:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 14:48:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:48:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 14:48:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 14:48:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:48:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:48:51,625 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:48:51,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:54:21,931 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-22 14:54:21,932 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-22 14:54:21,932 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-22 14:54:21,933 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-22 14:54:21,933 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-22 14:54:21,936 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-22 14:54:21,946 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:54:22,068 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:54:22,069 INFO L301 CfgBuilder]: Removed 46 assume(true) statements. [2021-11-22 14:54:22,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:54:22 BoogieIcfgContainer [2021-11-22 14:54:22,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:54:22,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:54:22,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:54:22,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:54:22,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:48:34" (1/3) ... [2021-11-22 14:54:22,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65feaafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:54:22, skipping insertion in model container [2021-11-22 14:54:22,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:41" (2/3) ... [2021-11-22 14:54:22,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65feaafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:54:22, skipping insertion in model container [2021-11-22 14:54:22,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:54:22" (3/3) ... [2021-11-22 14:54:22,105 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-22 14:54:22,112 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:54:22,112 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-22 14:54:22,258 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:54:22,275 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=PETRI_NET, 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 [2021-11-22 14:54:22,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-22 14:54:22,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 21268 states, 21234 states have (on average 1.289582744654799) internal successors, (27383), 21267 states have internal predecessors, (27383), 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) [2021-11-22 14:54:22,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-22 14:54:22,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:54:22,649 INFO L514 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, 1, 1, 1, 1] [2021-11-22 14:54:22,649 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-22 14:54:22,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:54:22,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1834529168, now seen corresponding path program 1 times [2021-11-22 14:54:22,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:54:22,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565223397] [2021-11-22 14:54:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:54:22,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:54:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:54:23,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:54:23,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:54:23,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565223397] [2021-11-22 14:54:23,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565223397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:54:23,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:54:23,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:54:23,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13005018] [2021-11-22 14:54:23,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:54:23,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:54:23,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:54:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:54:24,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:54:24,087 INFO L87 Difference]: Start difference. First operand has 21268 states, 21234 states have (on average 1.289582744654799) internal successors, (27383), 21267 states have internal predecessors, (27383), 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) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-22 14:54:26,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 14:54:28,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:54:28,859 INFO L93 Difference]: Finished difference Result 62841 states and 80618 transitions. [2021-11-22 14:54:28,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:54:28,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2021-11-22 14:54:28,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:54:29,218 INFO L225 Difference]: With dead ends: 62841 [2021-11-22 14:54:29,219 INFO L226 Difference]: Without dead ends: 41053 [2021-11-22 14:54:29,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:54:29,304 INFO L933 BasicCegarLoop]: 26550 mSDtfsCounter, 26320 mSDsluCounter, 26506 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26320 SdHoareTripleChecker+Valid, 53056 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-22 14:54:29,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26320 Valid, 53056 Invalid, 14 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-22 14:54:29,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41053 states.