./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 23:39:04,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:39:04,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:39:04,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:39:04,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:39:04,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:39:04,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:39:04,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:39:04,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:39:04,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:39:04,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:39:04,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:39:04,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:39:04,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:39:04,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:39:04,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:39:04,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:39:04,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:39:04,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:39:04,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:39:04,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:39:04,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:39:04,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:39:04,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:39:04,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:39:04,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:39:04,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:39:04,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:39:04,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:39:04,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:39:04,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:39:04,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:39:04,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:39:04,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:39:04,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:39:04,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:39:04,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:39:04,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:39:04,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:39:04,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:39:04,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:39:04,224 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 23:39:04,237 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:39:04,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:39:04,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:39:04,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:39:04,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:39:04,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:39:04,239 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:39:04,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:39:04,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:39:04,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:39:04,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:39:04,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:39:04,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:39:04,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:39:04,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:39:04,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:39:04,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:39:04,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:39:04,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:39:04,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:39:04,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:39:04,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:39:04,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:39:04,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:39:04,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:39:04,242 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:39:04,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:39:04,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:39:04,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:39:04,243 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2021-11-02 23:39:04,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:39:04,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:39:04,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:39:04,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:39:04,443 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:39:04,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-02 23:39:04,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec39fa398/75139b5438324910b3561f541c04b7b9/FLAGb2a36d8e1 [2021-11-02 23:39:05,176 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:39:05,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-02 23:39:05,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec39fa398/75139b5438324910b3561f541c04b7b9/FLAGb2a36d8e1 [2021-11-02 23:39:05,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec39fa398/75139b5438324910b3561f541c04b7b9 [2021-11-02 23:39:05,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:39:05,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:39:05,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:39:05,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:39:05,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:39:05,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:39:05" (1/1) ... [2021-11-02 23:39:05,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3161ef33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:05, skipping insertion in model container [2021-11-02 23:39:05,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:39:05" (1/1) ... [2021-11-02 23:39:05,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:39:05,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:39:08,233 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-02 23:39:08,235 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-02 23:39:08,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:39:08,261 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:39:08,856 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-02 23:39:08,856 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-02 23:39:08,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:39:09,031 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:39:09,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09 WrapperNode [2021-11-02 23:39:09,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:39:09,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:39:09,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:39:09,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:39:09,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:09,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:15,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:39:15,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:39:15,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:39:15,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:39:15,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:15,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:16,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:16,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:18,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:18,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:18,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:19,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:39:19,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:39:19,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:39:19,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:39:19,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (1/1) ... [2021-11-02 23:39:19,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:39:19,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 23:39:19,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:39:19,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:39:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-02 23:39:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-02 23:39:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-02 23:39:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-02 23:39:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:39:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 23:39:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 23:39:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:39:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-02 23:39:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-02 23:39:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:39:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:39:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 23:39:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 23:39:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:39:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:39:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 23:39:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 23:39:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:39:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-02 23:39:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-02 23:39:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:39:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:39:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:39:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:39:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 23:39:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 23:39:33,970 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-02 23:39:33,971 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-02 23:39:33,971 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-02 23:39:33,971 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-02 23:39:33,971 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-02 23:39:33,971 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-02 23:39:33,971 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-02 23:39:33,971 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-02 23:39:33,972 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-02 23:39:33,972 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-02 23:39:33,972 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-02 23:39:33,981 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-02 23:39:33,981 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-02 23:39:33,982 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#14: havoc lmc_proto_type_#t~mem1372.base, lmc_proto_type_#t~mem1372.offset; [2021-11-02 23:39:33,982 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#10: havoc lmc_proto_type_#t~mem1372.base, lmc_proto_type_#t~mem1372.offset; [2021-11-02 23:39:34,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:39:34,071 INFO L299 CfgBuilder]: Removed 40644 assume(true) statements. [2021-11-02 23:39:34,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:39:34 BoogieIcfgContainer [2021-11-02 23:39:34,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:39:34,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:39:34,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:39:34,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:39:34,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:39:05" (1/3) ... [2021-11-02 23:39:34,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47477210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:39:34, skipping insertion in model container [2021-11-02 23:39:34,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:39:09" (2/3) ... [2021-11-02 23:39:34,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47477210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:39:34, skipping insertion in model container [2021-11-02 23:39:34,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:39:34" (3/3) ... [2021-11-02 23:39:34,101 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-02 23:39:34,104 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:39:34,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-02 23:39:34,205 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:39:34,210 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 [2021-11-02 23:39:34,210 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-02 23:39:34,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 31582 states, 31532 states have (on average 1.2500317138145376) internal successors, (39416), 31548 states have internal predecessors, (39416), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-02 23:39:34,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-02 23:39:34,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:39:34,770 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, 1, 1, 1, 1, 1] [2021-11-02 23:39:34,771 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-02 23:39:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:39:34,775 INFO L85 PathProgramCache]: Analyzing trace with hash 398559688, now seen corresponding path program 1 times [2021-11-02 23:39:34,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:39:34,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28499896] [2021-11-02 23:39:34,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:39:34,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:39:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:39:35,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:39:35,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:39:35,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28499896] [2021-11-02 23:39:35,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28499896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:39:35,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:39:35,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:39:35,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453459671] [2021-11-02 23:39:35,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:39:35,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:39:35,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:39:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:39:35,391 INFO L87 Difference]: Start difference. First operand has 31582 states, 31532 states have (on average 1.2500317138145376) internal successors, (39416), 31548 states have internal predecessors, (39416), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-02 23:39:37,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:45:46,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:45:46,358 INFO L93 Difference]: Finished difference Result 88699 states and 110945 transitions. [2021-11-02 23:45:46,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:45:46,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2021-11-02 23:45:46,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:45:46,663 INFO L225 Difference]: With dead ends: 88699 [2021-11-02 23:45:46,664 INFO L226 Difference]: Without dead ends: 56933 [2021-11-02 23:45:46,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:45:46,805 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 32139 mSDsluCounter, 39375 mSDsCounter, 0 mSdLazyCounter, 84476 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 316112.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32139 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 84498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 453.06ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 84476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 363807.66ms IncrementalHoareTripleChecker+Time [2021-11-02 23:45:46,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32139 Valid, 485 Invalid, 84498 Unknown, 0 Unchecked, 453.06ms Time], IncrementalHoareTripleChecker [21 Valid, 84476 Invalid, 1 Unknown, 0 Unchecked, 363807.66ms Time] [2021-11-02 23:45:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56933 states. [2021-11-02 23:45:48,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56933 to 56911. [2021-11-02 23:45:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56911 states, 56832 states have (on average 1.2471846846846846) internal successors, (70880), 56852 states have internal predecessors, (70880), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-02 23:45:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56911 states to 56911 states and 70988 transitions. [2021-11-02 23:45:48,334 INFO L78 Accepts]: Start accepts. Automaton has 56911 states and 70988 transitions. Word has length 82 [2021-11-02 23:45:48,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:45:48,336 INFO L470 AbstractCegarLoop]: Abstraction has 56911 states and 70988 transitions. [2021-11-02 23:45:48,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-02 23:45:48,337 INFO L276 IsEmpty]: Start isEmpty. Operand 56911 states and 70988 transitions. [2021-11-02 23:45:48,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-02 23:45:48,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:45:48,373 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:45:48,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:45:48,374 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-02 23:45:48,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:45:48,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1038599362, now seen corresponding path program 1 times [2021-11-02 23:45:48,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:45:48,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397306889] [2021-11-02 23:45:48,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:45:48,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:45:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:45:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:45:48,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:45:48,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397306889] [2021-11-02 23:45:48,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397306889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:45:48,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:45:48,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:45:48,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206543901] [2021-11-02 23:45:48,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:45:48,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:45:48,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:45:48,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:45:48,675 INFO L87 Difference]: Start difference. First operand 56911 states and 70988 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-02 23:45:50,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15