./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G --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 ef3ce825b6667e16bfc4665f699fd391a0ee0a69894a82ad8db779b4c9f29246 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:11:39,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:11:39,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:11:39,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:11:39,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:11:39,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:11:39,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:11:39,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:11:39,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:11:39,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:11:39,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:11:39,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:11:39,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:11:39,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:11:39,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:11:39,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:11:39,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:11:39,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:11:39,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:11:39,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:11:39,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:11:39,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:11:39,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:11:39,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:11:39,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:11:39,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:11:39,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:11:39,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:11:39,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:11:39,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:11:39,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:11:39,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:11:39,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:11:39,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:11:39,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:11:39,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:11:39,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:11:39,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:11:39,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:11:39,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:11:39,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:11:39,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 13:11:39,878 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:11:39,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:11:39,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:11:39,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:11:39,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:11:39,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:11:39,893 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:11:39,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:11:39,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:11:39,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:11:39,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:11:39,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:11:39,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:11:39,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:11:39,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:11:39,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:11:39,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:11:39,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:11:39,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:11:39,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:11:39,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:11:39,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:11:39,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:11:39,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:11:39,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:11:39,899 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:11:39,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:11:39,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:11:39,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:11:39,901 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_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef3ce825b6667e16bfc4665f699fd391a0ee0a69894a82ad8db779b4c9f29246 [2021-11-23 13:11:40,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:11:40,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:11:40,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:11:40,237 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:11:40,238 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:11:40,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 13:11:40,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/data/ea35072dd/d827538dfe85480f97d5333cd38494ea/FLAG32258124f [2021-11-23 13:11:41,659 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:11:41,660 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 13:11:41,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/data/ea35072dd/d827538dfe85480f97d5333cd38494ea/FLAG32258124f [2021-11-23 13:11:42,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/data/ea35072dd/d827538dfe85480f97d5333cd38494ea [2021-11-23 13:11:42,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:11:42,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:11:42,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:11:42,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:11:42,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:11:42,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:42" (1/1) ... [2021-11-23 13:11:42,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62506700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:42, skipping insertion in model container [2021-11-23 13:11:42,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:42" (1/1) ... [2021-11-23 13:11:42,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:11:42,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:11:51,875 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_6340d675-1509-416c-844f-63157344c2c0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i[831475,831488] [2021-11-23 13:11:51,879 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_6340d675-1509-416c-844f-63157344c2c0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i[831641,831654] [2021-11-23 13:11:51,879 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_6340d675-1509-416c-844f-63157344c2c0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i[831805,831818] [2021-11-23 13:11:51,880 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_6340d675-1509-416c-844f-63157344c2c0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i[831970,831983] [2021-11-23 13:11:51,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:11:52,006 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:11:53,110 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_6340d675-1509-416c-844f-63157344c2c0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i[831475,831488] [2021-11-23 13:11:53,112 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_6340d675-1509-416c-844f-63157344c2c0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i[831641,831654] [2021-11-23 13:11:53,113 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_6340d675-1509-416c-844f-63157344c2c0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i[831805,831818] [2021-11-23 13:11:53,114 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_6340d675-1509-416c-844f-63157344c2c0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i[831970,831983] [2021-11-23 13:11:53,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:11:53,543 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:11:53,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53 WrapperNode [2021-11-23 13:11:53,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:11:53,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:11:53,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:11:53,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:11:53,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:11:53,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:11:57,607 INFO L137 Inliner]: procedures = 732, calls = 7609, calls flagged for inlining = 1794, calls inlined = 12411, statements flattened = 151694 [2021-11-23 13:11:57,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:11:57,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:11:57,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:11:57,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:11:57,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:11:57,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:11:58,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:11:58,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:12:01,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:12:01,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:12:02,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:12:02,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:12:02,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:12:02,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:12:02,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:12:02,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (1/1) ... [2021-11-23 13:12:02,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:12:02,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:12:02,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:12:02,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6340d675-1509-416c-844f-63157344c2c0/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:12:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_close [2021-11-23 13:12:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_close [2021-11-23 13:12:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_sw_reset [2021-11-23 13:12:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_sw_reset [2021-11-23 13:12:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open_vpaths [2021-11-23 13:12:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open_vpaths [2021-11-23 13:12:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_unregister [2021-11-23 13:12:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_unregister [2021-11-23 13:12:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_register [2021-11-23 13:12:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_register [2021-11-23 13:12:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_13_6 [2021-11-23 13:12:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_13_6 [2021-11-23 13:12:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_29 [2021-11-23 13:12:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_29 [2021-11-23 13:12:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:12:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 13:12:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 13:12:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 13:12:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_probe [2021-11-23 13:12:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_probe [2021-11-23 13:12:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 13:12:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:12:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset_all_vpaths [2021-11-23 13:12:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset_all_vpaths [2021-11-23 13:12:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:12:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-23 13:12:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-23 13:12:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:12:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:12:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 13:12:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:12:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:12:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_27 [2021-11-23 13:12:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_27 [2021-11-23 13:12:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_create [2021-11-23 13:12:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_create [2021-11-23 13:12:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 13:12:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 13:12:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 13:12:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure do_vxge_close [2021-11-23 13:12:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure do_vxge_close [2021-11-23 13:12:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:12:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:12:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 13:12:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_open [2021-11-23 13:12:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_open [2021-11-23 13:12:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_replenish [2021-11-23 13:12:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_replenish [2021-11-23 13:12:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:12:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_recover_from_reset [2021-11-23 13:12:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_recover_from_reset [2021-11-23 13:12:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open [2021-11-23 13:12:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open [2021-11-23 13:12:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_18_2 [2021-11-23 13:12:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_18_2 [2021-11-23 13:12:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_reset [2021-11-23 13:12:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_reset [2021-11-23 13:12:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 13:12:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 13:12:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:12:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 13:12:06,372 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:12:06,374 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:20:50,461 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 13:20:50,461 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-23 13:20:50,461 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 13:20:50,462 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 13:20:50,463 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 13:20:50,463 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 13:20:50,469 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 13:21:00,105 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:21:00,244 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:21:00,245 INFO L301 CfgBuilder]: Removed 252 assume(true) statements. [2021-11-23 13:21:00,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:21:00 BoogieIcfgContainer [2021-11-23 13:21:00,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:21:00,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:21:00,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:21:00,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:21:00,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:11:42" (1/3) ... [2021-11-23 13:21:00,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3748c69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:21:00, skipping insertion in model container [2021-11-23 13:21:00,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:53" (2/3) ... [2021-11-23 13:21:00,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3748c69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:21:00, skipping insertion in model container [2021-11-23 13:21:00,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:21:00" (3/3) ... [2021-11-23 13:21:00,282 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 13:21:00,289 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:21:00,290 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-23 13:21:00,452 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:21:00,461 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 [2021-11-23 13:21:00,461 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-23 13:21:01,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 26734 states, 26650 states have (on average 1.3219136960600375) internal successors, (35229), 26658 states have internal predecessors, (35229), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-23 13:21:01,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 13:21:01,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:21:01,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:21:01,165 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-23 13:21:01,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:21:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1587083706, now seen corresponding path program 1 times [2021-11-23 13:21:01,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:21:01,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831657776] [2021-11-23 13:21:01,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:21:01,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:21:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:21:02,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:21:02,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:21:02,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831657776] [2021-11-23 13:21:02,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831657776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:21:02,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:21:02,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:21:02,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072080435] [2021-11-23 13:21:02,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:21:02,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:21:02,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:21:03,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:21:03,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:21:03,074 INFO L87 Difference]: Start difference. First operand has 26734 states, 26650 states have (on average 1.3219136960600375) internal successors, (35229), 26658 states have internal predecessors, (35229), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-23 13:21:05,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []