./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 ae007674 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-dev-ae00767 [2021-12-28 04:02:22,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:02:22,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:02:22,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:02:22,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:02:22,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:02:22,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:02:22,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:02:22,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:02:22,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:02:22,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:02:22,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:02:22,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:02:22,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:02:22,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:02:22,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:02:22,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:02:22,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:02:22,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:02:22,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:02:22,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:02:22,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:02:22,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:02:22,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:02:22,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:02:22,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:02:22,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:02:22,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:02:22,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:02:22,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:02:22,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:02:22,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:02:22,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:02:22,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:02:22,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:02:22,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:02:22,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:02:22,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:02:22,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:02:22,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:02:22,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:02:22,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:02:22,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:02:22,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:02:22,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:02:22,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:02:22,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:02:22,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:02:22,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:02:22,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:02:22,228 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:02:22,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:02:22,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:02:22,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:02:22,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:02:22,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:02:22,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:02:22,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:02:22,230 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:02:22,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:02:22,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:02:22,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:02:22,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:02:22,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:02:22,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:02:22,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:02:22,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:02:22,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:02:22,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:02:22,232 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:02:22,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:02:22,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:02:22,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2021-12-28 04:02:22,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:02:22,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:02:22,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:02:22,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:02:22,516 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:02:22,517 INFO L432 ainManager$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 [2021-12-28 04:02:22,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d688755/d022b81cb95949aabf63c997d69dbe76/FLAG394bceed9 [2021-12-28 04:02:23,227 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:02:23,229 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 [2021-12-28 04:02:23,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d688755/d022b81cb95949aabf63c997d69dbe76/FLAG394bceed9 [2021-12-28 04:02:23,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d688755/d022b81cb95949aabf63c997d69dbe76 [2021-12-28 04:02:23,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:02:23,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:02:23,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:02:23,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:02:23,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:02:23,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:02:23" (1/1) ... [2021-12-28 04:02:23,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fd25a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:23, skipping insertion in model container [2021-12-28 04:02:23,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:02:23" (1/1) ... [2021-12-28 04:02:23,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:02:23,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:02:23,935 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-12-28 04:02:23,935 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] [2021-12-28 04:02:24,280 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] [2021-12-28 04:02:25,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:02:25,075 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:02:25,212 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-12-28 04:02:25,212 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] [2021-12-28 04:02:25,222 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] [2021-12-28 04:02:25,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:02:25,521 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:02:25,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25 WrapperNode [2021-12-28 04:02:25,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:02:25,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:02:25,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:02:25,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:02:25,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,693 INFO L137 Inliner]: procedures = 219, calls = 1605, calls flagged for inlining = 116, calls inlined = 113, statements flattened = 3091 [2021-12-28 04:02:25,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:02:25,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:02:25,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:02:25,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:02:25,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:02:25,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:02:25,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:02:25,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:02:25,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (1/1) ... [2021-12-28 04:02:25,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:02:25,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:02:25,929 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) [2021-12-28 04:02:25,947 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 [2021-12-28 04:02:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:02:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:02:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:02:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:02:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 04:02:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 04:02:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:02:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:02:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:02:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:02:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-28 04:02:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-28 04:02:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:02:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:02:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:02:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:02:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:02:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:02:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:02:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:02:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 04:02:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 04:02:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-28 04:02:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-28 04:02:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-28 04:02:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-28 04:02:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:02:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2021-12-28 04:02:25,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2021-12-28 04:02:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:02:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:02:25,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:02:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:02:25,963 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:02:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:02:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-28 04:02:25,964 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-28 04:02:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:02:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2021-12-28 04:02:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2021-12-28 04:02:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-28 04:02:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-28 04:02:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2021-12-28 04:02:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2021-12-28 04:02:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 04:02:25,966 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 04:02:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-28 04:02:25,966 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-28 04:02:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 04:02:25,966 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 04:02:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2021-12-28 04:02:25,967 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2021-12-28 04:02:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2021-12-28 04:02:25,967 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2021-12-28 04:02:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:02:25,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:02:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2021-12-28 04:02:25,968 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2021-12-28 04:02:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:02:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 04:02:25,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 04:02:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2021-12-28 04:02:25,969 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2021-12-28 04:02:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2021-12-28 04:02:25,969 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2021-12-28 04:02:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:02:25,969 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:02:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:02:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-28 04:02:25,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-28 04:02:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-28 04:02:25,970 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-28 04:02:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:02:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2021-12-28 04:02:25,971 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2021-12-28 04:02:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 04:02:25,971 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 04:02:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:02:25,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:02:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2021-12-28 04:02:25,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2021-12-28 04:02:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:02:25,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:02:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-28 04:02:25,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-28 04:02:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-28 04:02:25,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-28 04:02:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:02:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 04:02:25,973 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 04:02:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-28 04:02:25,973 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-28 04:02:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-28 04:02:25,974 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-28 04:02:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:02:25,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:02:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:02:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-28 04:02:25,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-28 04:02:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2021-12-28 04:02:25,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2021-12-28 04:02:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:02:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2021-12-28 04:02:25,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2021-12-28 04:02:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 04:02:25,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 04:02:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:02:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2021-12-28 04:02:25,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2021-12-28 04:02:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 04:02:25,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 04:02:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2021-12-28 04:02:25,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2021-12-28 04:02:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2021-12-28 04:02:25,977 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2021-12-28 04:02:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2021-12-28 04:02:25,979 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2021-12-28 04:02:25,979 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 04:02:25,979 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 04:02:25,979 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:02:25,980 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:02:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-28 04:02:25,981 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-28 04:02:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:02:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2021-12-28 04:02:25,984 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2021-12-28 04:02:25,985 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-28 04:02:25,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-28 04:02:25,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:02:25,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:02:26,531 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:02:26,534 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:02:26,900 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:02:37,256 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:02:37,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:02:37,273 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:02:37,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:02:37 BoogieIcfgContainer [2021-12-28 04:02:37,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:02:37,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:02:37,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:02:37,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:02:37,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:02:23" (1/3) ... [2021-12-28 04:02:37,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d9585e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:02:37, skipping insertion in model container [2021-12-28 04:02:37,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:02:25" (2/3) ... [2021-12-28 04:02:37,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d9585e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:02:37, skipping insertion in model container [2021-12-28 04:02:37,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:02:37" (3/3) ... [2021-12-28 04:02:37,282 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 [2021-12-28 04:02:37,286 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:02:37,286 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:02:37,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:02:37,338 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 [2021-12-28 04:02:37,339 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:02:37,378 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) [2021-12-28 04:02:37,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-28 04:02:37,395 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:02:37,396 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] [2021-12-28 04:02:37,397 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:02:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:02:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash -359999737, now seen corresponding path program 1 times [2021-12-28 04:02:37,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:02:37,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764599752] [2021-12-28 04:02:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:02:37,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:02:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:37,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:02:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:37,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:02:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:37,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:02:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:37,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 04:02:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:37,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 04:02:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:37,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 04:02:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:37,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:02:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:37,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 04:02:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:37,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 04:02:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:02:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 04:02:38,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:02:38,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764599752] [2021-12-28 04:02:38,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764599752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:02:38,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:02:38,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:02:38,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698354435] [2021-12-28 04:02:38,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:02:38,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:02:38,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:02:38,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:02:38,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:02:38,084 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) [2021-12-28 04:02:49,816 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 [] [2021-12-28 04:02:51,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:02:53,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:02:55,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:02:58,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:04,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:06,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:10,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:12,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:14,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:16,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:18,773 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 [] [2021-12-28 04:03:23,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:03:23,257 INFO L93 Difference]: Finished difference Result 3715 states and 5491 transitions. [2021-12-28 04:03:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:03:23,260 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 [2021-12-28 04:03:23,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:03:23,290 INFO L225 Difference]: With dead ends: 3715 [2021-12-28 04:03:23,291 INFO L226 Difference]: Without dead ends: 2532 [2021-12-28 04:03:23,305 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 [2021-12-28 04:03:23,312 INFO L933 BasicCegarLoop]: 1530 mSDtfsCounter, 3728 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 6511 mSolverCounterSat, 2865 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4023 SdHoareTripleChecker+Valid, 4527 SdHoareTripleChecker+Invalid, 9388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2865 IncrementalHoareTripleChecker+Valid, 6511 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.5s IncrementalHoareTripleChecker+Time [2021-12-28 04:03:23,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4023 Valid, 4527 Invalid, 9388 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2865 Valid, 6511 Invalid, 12 Unknown, 0 Unchecked, 44.5s Time] [2021-12-28 04:03:23,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2021-12-28 04:03:23,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 2245. [2021-12-28 04:03:23,488 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) [2021-12-28 04:03:23,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3168 transitions. [2021-12-28 04:03:23,506 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3168 transitions. Word has length 93 [2021-12-28 04:03:23,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:03:23,506 INFO L470 AbstractCegarLoop]: Abstraction has 2245 states and 3168 transitions. [2021-12-28 04:03:23,506 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) [2021-12-28 04:03:23,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3168 transitions. [2021-12-28 04:03:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-28 04:03:23,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:03:23,518 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] [2021-12-28 04:03:23,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:03:23,518 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:03:23,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:03:23,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1343295556, now seen corresponding path program 1 times [2021-12-28 04:03:23,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:03:23,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773298290] [2021-12-28 04:03:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:03:23,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:03:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:03:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:03:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:03:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:03:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 04:03:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 04:03:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:03:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 04:03:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 04:03:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 04:03:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:23,811 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 04:03:23,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:03:23,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773298290] [2021-12-28 04:03:23,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773298290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:03:23,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:03:23,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:03:23,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413077885] [2021-12-28 04:03:23,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:03:23,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:03:23,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:03:23,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:03:23,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:03:23,814 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) [2021-12-28 04:03:26,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:28,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:30,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:33,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []