./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.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 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:04:10,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:04:10,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:04:10,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:04:10,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:04:10,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:04:10,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:04:10,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:04:10,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:04:10,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:04:10,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:04:10,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:04:10,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:04:10,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:04:10,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:04:10,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:04:10,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:04:10,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:04:10,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:04:10,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:04:10,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:04:10,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:04:10,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:04:10,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:04:10,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:04:10,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:04:10,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:04:10,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:04:10,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:04:10,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:04:10,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:04:10,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:04:10,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:04:10,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:04:10,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:04:10,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:04:10,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:04:10,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:04:10,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:04:10,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:04:10,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:04:10,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:04:10,526 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:04:10,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:04:10,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:04:10,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:04:10,527 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:04:10,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:04:10,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:04:10,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:04:10,528 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:04:10,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:04:10,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:04:10,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:04:10,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:04:10,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:04:10,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:04:10,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:04:10,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:04:10,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:04:10,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:04:10,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:04:10,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:04:10,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:04:10,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:04:10,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:04:10,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:04:10,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:04:10,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:04:10,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:04:10,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:04:10,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:04:10,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:04:10,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2021-12-16 04:04:10,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:04:10,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:04:10,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:04:10,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:04:10,754 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:04:10,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-12-16 04:04:10,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/250c57ad1/0bbc155951624fc5b9ce26abadac9575/FLAGf250abb08 [2021-12-16 04:04:11,414 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:04:11,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-12-16 04:04:11,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/250c57ad1/0bbc155951624fc5b9ce26abadac9575/FLAGf250abb08 [2021-12-16 04:04:11,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/250c57ad1/0bbc155951624fc5b9ce26abadac9575 [2021-12-16 04:04:11,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:04:11,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:04:11,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:04:11,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:04:11,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:04:11,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:04:11" (1/1) ... [2021-12-16 04:04:11,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7477fddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:11, skipping insertion in model container [2021-12-16 04:04:11,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:04:11" (1/1) ... [2021-12-16 04:04:11,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:04:11,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:04:12,294 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-12-16 04:04:12,295 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2021-12-16 04:04:12,559 WARN L230 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2021-12-16 04:04:13,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:04:13,201 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:04:13,293 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-12-16 04:04:13,294 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2021-12-16 04:04:13,302 WARN L230 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2021-12-16 04:04:13,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:04:13,549 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:04:13,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13 WrapperNode [2021-12-16 04:04:13,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:04:13,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:04:13,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:04:13,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:04:13,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,719 INFO L137 Inliner]: procedures = 219, calls = 1605, calls flagged for inlining = 116, calls inlined = 113, statements flattened = 3091 [2021-12-16 04:04:13,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:04:13,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:04:13,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:04:13,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:04:13,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:04:13,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:04:13,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:04:13,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:04:13,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (1/1) ... [2021-12-16 04:04:13,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:04:13,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:04:13,993 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) [2021-12-16 04:04:14,011 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 [2021-12-16 04:04:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:04:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:04:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:04:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:04:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-16 04:04:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-16 04:04:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:04:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:04:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:04:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:04:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-16 04:04:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-16 04:04:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:04:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:04:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 04:04:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 04:04:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:04:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:04:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:04:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:04:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 04:04:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 04:04:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-16 04:04:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-16 04:04:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-16 04:04:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-16 04:04:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:04:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2021-12-16 04:04:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2021-12-16 04:04:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:04:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 04:04:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 04:04:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:04:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:04:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:04:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-16 04:04:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-16 04:04:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:04:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2021-12-16 04:04:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2021-12-16 04:04:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-16 04:04:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-16 04:04:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2021-12-16 04:04:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2021-12-16 04:04:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 04:04:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 04:04:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-16 04:04:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-16 04:04:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 04:04:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 04:04:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2021-12-16 04:04:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2021-12-16 04:04:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2021-12-16 04:04:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2021-12-16 04:04:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 04:04:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 04:04:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2021-12-16 04:04:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2021-12-16 04:04:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:04:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 04:04:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 04:04:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2021-12-16 04:04:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2021-12-16 04:04:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2021-12-16 04:04:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2021-12-16 04:04:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 04:04:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 04:04:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:04:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-16 04:04:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-16 04:04:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-16 04:04:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-16 04:04:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:04:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2021-12-16 04:04:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2021-12-16 04:04:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 04:04:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 04:04:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 04:04:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 04:04:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2021-12-16 04:04:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2021-12-16 04:04:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:04:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:04:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-16 04:04:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-16 04:04:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-16 04:04:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-16 04:04:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:04:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 04:04:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 04:04:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-16 04:04:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-16 04:04:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-16 04:04:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-16 04:04:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:04:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:04:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:04:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-16 04:04:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-16 04:04:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2021-12-16 04:04:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2021-12-16 04:04:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:04:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2021-12-16 04:04:14,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2021-12-16 04:04:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 04:04:14,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 04:04:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:04:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2021-12-16 04:04:14,039 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2021-12-16 04:04:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-16 04:04:14,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-16 04:04:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2021-12-16 04:04:14,039 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2021-12-16 04:04:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2021-12-16 04:04:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2021-12-16 04:04:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2021-12-16 04:04:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2021-12-16 04:04:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 04:04:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 04:04:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 04:04:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 04:04:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-16 04:04:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-16 04:04:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:04:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2021-12-16 04:04:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2021-12-16 04:04:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-16 04:04:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-16 04:04:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:04:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:04:14,531 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:04:14,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:04:14,920 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:04:25,277 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:04:25,287 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:04:25,287 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:04:25,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:04:25 BoogieIcfgContainer [2021-12-16 04:04:25,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:04:25,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:04:25,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:04:25,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:04:25,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:04:11" (1/3) ... [2021-12-16 04:04:25,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26574041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:04:25, skipping insertion in model container [2021-12-16 04:04:25,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:13" (2/3) ... [2021-12-16 04:04:25,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26574041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:04:25, skipping insertion in model container [2021-12-16 04:04:25,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:04:25" (3/3) ... [2021-12-16 04:04:25,294 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-12-16 04:04:25,298 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:04:25,298 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:04:25,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:04:25,331 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 [2021-12-16 04:04:25,332 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:04:25,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 1148 states, 811 states have (on average 1.3218249075215782) internal successors, (1072), 834 states have internal predecessors, (1072), 279 states have call successors, (279), 57 states have call predecessors, (279), 56 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) [2021-12-16 04:04:25,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 04:04:25,366 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:04:25,367 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:04:25,367 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:04:25,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:04:25,371 INFO L85 PathProgramCache]: Analyzing trace with hash -359999737, now seen corresponding path program 1 times [2021-12-16 04:04:25,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:04:25,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126713804] [2021-12-16 04:04:25,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:04:25,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:04:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:04:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:04:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:04:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 04:04:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 04:04:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-16 04:04:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:04:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 04:04:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 04:04:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:04:25,899 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 04:04:25,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:04:25,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126713804] [2021-12-16 04:04:25,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126713804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:04:25,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:04:25,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 04:04:25,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251637348] [2021-12-16 04:04:25,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:04:25,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 04:04:25,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:04:25,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 04:04:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:04:25,930 INFO L87 Difference]: Start difference. First operand has 1148 states, 811 states have (on average 1.3218249075215782) internal successors, (1072), 834 states have internal predecessors, (1072), 279 states have call successors, (279), 57 states have call predecessors, (279), 56 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-16 04:04:28,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:04:31,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:04:38,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:04:40,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:04:42,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:04:44,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:04:46,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:04:53,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:04:56,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:04:58,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:00,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:02,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:04,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:09,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:05:09,055 INFO L93 Difference]: Finished difference Result 3715 states and 5491 transitions. [2021-12-16 04:05:09,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 04:05:09,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 93 [2021-12-16 04:05:09,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:05:09,094 INFO L225 Difference]: With dead ends: 3715 [2021-12-16 04:05:09,094 INFO L226 Difference]: Without dead ends: 2532 [2021-12-16 04:05:09,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2021-12-16 04:05:09,112 INFO L933 BasicCegarLoop]: 1530 mSDtfsCounter, 3728 mSDsluCounter, 4146 mSDsCounter, 0 mSdLazyCounter, 5364 mSolverCounterSat, 2865 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4023 SdHoareTripleChecker+Valid, 5676 SdHoareTripleChecker+Invalid, 8239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2865 IncrementalHoareTripleChecker+Valid, 5364 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:05:09,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4023 Valid, 5676 Invalid, 8239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2865 Valid, 5364 Invalid, 10 Unknown, 0 Unchecked, 42.6s Time] [2021-12-16 04:05:09,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2021-12-16 04:05:09,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 2245. [2021-12-16 04:05:09,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 1591 states have (on average 1.3092394720301697) internal successors, (2083), 1621 states have internal predecessors, (2083), 542 states have call successors, (542), 112 states have call predecessors, (542), 111 states have return successors, (543), 541 states have call predecessors, (543), 541 states have call successors, (543) [2021-12-16 04:05:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3168 transitions. [2021-12-16 04:05:09,378 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3168 transitions. Word has length 93 [2021-12-16 04:05:09,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:05:09,379 INFO L470 AbstractCegarLoop]: Abstraction has 2245 states and 3168 transitions. [2021-12-16 04:05:09,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-16 04:05:09,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3168 transitions. [2021-12-16 04:05:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 04:05:09,390 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:05:09,390 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:05:09,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:05:09,391 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:05:09,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:05:09,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1343295556, now seen corresponding path program 1 times [2021-12-16 04:05:09,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:05:09,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368520218] [2021-12-16 04:05:09,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:05:09,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:05:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:05:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:05:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:05:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:05:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 04:05:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 04:05:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:05:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 04:05:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 04:05:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 04:05:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:05:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 04:05:09,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:05:09,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368520218] [2021-12-16 04:05:09,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368520218] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:05:09,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:05:09,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 04:05:09,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721501739] [2021-12-16 04:05:09,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:05:09,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 04:05:09,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:05:09,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 04:05:09,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:05:09,654 INFO L87 Difference]: Start difference. First operand 2245 states and 3168 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 04:05:12,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:14,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:15,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:17,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:05:21,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []