./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:50:04,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:50:04,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:50:04,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:50:04,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:50:04,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:50:04,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:50:04,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:50:04,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:50:04,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:50:04,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:50:04,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:50:04,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:50:04,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:50:04,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:50:04,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:50:04,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:50:04,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:50:04,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:50:04,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:50:04,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:50:04,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:50:04,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:50:04,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:50:04,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:50:04,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:50:04,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:50:04,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:50:04,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:50:04,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:50:04,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:50:04,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:50:04,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:50:04,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:50:04,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:50:04,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:50:04,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:50:04,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:50:04,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:50:04,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:50:04,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:50:04,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:50:04,534 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:50:04,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:50:04,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:50:04,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:50:04,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:50:04,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:50:04,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:50:04,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:50:04,536 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:50:04,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:50:04,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:50:04,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:50:04,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:50:04,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:50:04,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:50:04,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:50:04,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:50:04,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:50:04,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:50:04,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:50:04,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:50:04,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:50:04,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:50:04,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:50:04,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:50:04,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:50:04,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:50:04,539 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:50:04,539 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:50:04,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:50:04,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:50:04,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2021-12-14 17:50:04,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:50:04,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:50:04,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:50:04,780 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:50:04,781 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:50:04,782 INFO L432 ainManager$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 [2021-12-14 17:50:04,843 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/696d769db/b7c758970cac4739ae330c0276df3002/FLAGc789ef077 [2021-12-14 17:50:05,507 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:50:05,508 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 [2021-12-14 17:50:05,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/696d769db/b7c758970cac4739ae330c0276df3002/FLAGc789ef077 [2021-12-14 17:50:05,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/696d769db/b7c758970cac4739ae330c0276df3002 [2021-12-14 17:50:05,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:50:05,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:50:05,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:50:05,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:50:05,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:50:05,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:50:05" (1/1) ... [2021-12-14 17:50:05,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595a93ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:05, skipping insertion in model container [2021-12-14 17:50:05,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:50:05" (1/1) ... [2021-12-14 17:50:05,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:50:05,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:50:06,250 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-12-14 17:50:06,250 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] [2021-12-14 17:50:06,370 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] [2021-12-14 17:50:06,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:50:06,940 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:50:07,041 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-12-14 17:50:07,043 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] [2021-12-14 17:50:07,051 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] [2021-12-14 17:50:07,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:50:07,307 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:50:07,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07 WrapperNode [2021-12-14 17:50:07,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:50:07,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:50:07,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:50:07,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:50:07,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,513 INFO L137 Inliner]: procedures = 219, calls = 1605, calls flagged for inlining = 116, calls inlined = 113, statements flattened = 3091 [2021-12-14 17:50:07,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:50:07,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:50:07,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:50:07,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:50:07,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:50:07,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:50:07,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:50:07,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:50:07,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (1/1) ... [2021-12-14 17:50:07,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:50:07,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:50:07,706 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) [2021-12-14 17:50:07,712 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 [2021-12-14 17:50:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:50:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:50:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:50:07,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:50:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 17:50:07,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 17:50:07,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 17:50:07,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 17:50:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:50:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:50:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 17:50:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 17:50:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:50:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:50:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 17:50:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 17:50:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:50:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:50:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:50:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:50:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 17:50:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 17:50:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-14 17:50:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-14 17:50:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 17:50:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 17:50:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:50:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2021-12-14 17:50:07,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2021-12-14 17:50:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:50:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 17:50:07,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 17:50:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:50:07,751 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:50:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:50:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-14 17:50:07,751 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-14 17:50:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:50:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2021-12-14 17:50:07,751 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2021-12-14 17:50:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-14 17:50:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-14 17:50:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2021-12-14 17:50:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2021-12-14 17:50:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 17:50:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 17:50:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-14 17:50:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-14 17:50:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 17:50:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 17:50:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2021-12-14 17:50:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2021-12-14 17:50:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2021-12-14 17:50:07,754 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2021-12-14 17:50:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:50:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:50:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2021-12-14 17:50:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2021-12-14 17:50:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:50:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:50:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:50:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2021-12-14 17:50:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2021-12-14 17:50:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2021-12-14 17:50:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2021-12-14 17:50:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 17:50:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 17:50:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:50:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-14 17:50:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-14 17:50:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 17:50:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 17:50:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:50:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2021-12-14 17:50:07,759 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2021-12-14 17:50:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 17:50:07,759 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 17:50:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 17:50:07,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 17:50:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2021-12-14 17:50:07,759 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2021-12-14 17:50:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 17:50:07,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 17:50:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-14 17:50:07,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-14 17:50:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-14 17:50:07,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-14 17:50:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:50:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 17:50:07,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 17:50:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-14 17:50:07,761 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-14 17:50:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-14 17:50:07,762 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-14 17:50:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:50:07,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:50:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:50:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-14 17:50:07,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-14 17:50:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2021-12-14 17:50:07,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2021-12-14 17:50:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:50:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2021-12-14 17:50:07,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2021-12-14 17:50:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 17:50:07,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 17:50:07,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:50:07,765 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2021-12-14 17:50:07,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2021-12-14 17:50:07,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-14 17:50:07,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-14 17:50:07,766 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2021-12-14 17:50:07,766 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2021-12-14 17:50:07,766 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2021-12-14 17:50:07,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2021-12-14 17:50:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2021-12-14 17:50:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2021-12-14 17:50:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 17:50:07,769 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 17:50:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:50:07,770 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:50:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-14 17:50:07,770 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-14 17:50:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:50:07,774 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2021-12-14 17:50:07,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2021-12-14 17:50:07,774 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-14 17:50:07,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-14 17:50:07,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:50:07,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:50:08,355 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:50:08,357 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:50:08,901 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:50:18,203 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:50:18,213 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:50:18,214 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:50:18,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:50:18 BoogieIcfgContainer [2021-12-14 17:50:18,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:50:18,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:50:18,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:50:18,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:50:18,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:50:05" (1/3) ... [2021-12-14 17:50:18,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c07ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:50:18, skipping insertion in model container [2021-12-14 17:50:18,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:07" (2/3) ... [2021-12-14 17:50:18,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c07ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:50:18, skipping insertion in model container [2021-12-14 17:50:18,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:50:18" (3/3) ... [2021-12-14 17:50:18,222 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 [2021-12-14 17:50:18,225 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:50:18,226 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:50:18,304 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:50:18,309 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 [2021-12-14 17:50:18,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:50:18,393 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) [2021-12-14 17:50:18,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-14 17:50:18,426 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:50:18,427 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] [2021-12-14 17:50:18,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:50:18,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:50:18,444 INFO L85 PathProgramCache]: Analyzing trace with hash -359999737, now seen corresponding path program 1 times [2021-12-14 17:50:18,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:50:18,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107375238] [2021-12-14 17:50:18,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:50:18,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:50:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:50:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:50:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:50:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 17:50:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 17:50:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 17:50:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:50:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 17:50:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 17:50:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:18,972 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-14 17:50:18,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:50:18,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107375238] [2021-12-14 17:50:18,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107375238] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:50:18,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:50:18,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 17:50:18,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704831914] [2021-12-14 17:50:18,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:50:18,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 17:50:18,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:50:18,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 17:50:18,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:50:18,996 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) [2021-12-14 17:50:27,736 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 [] [2021-12-14 17:50:29,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:31,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:33,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:35,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:40,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:42,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:44,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:49,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:51,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:53,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:55,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:57,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:51:00,692 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 [] [2021-12-14 17:51:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:51:02,914 INFO L93 Difference]: Finished difference Result 3715 states and 5491 transitions. [2021-12-14 17:51:02,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 17:51:02,916 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 [2021-12-14 17:51:02,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:51:02,950 INFO L225 Difference]: With dead ends: 3715 [2021-12-14 17:51:02,951 INFO L226 Difference]: Without dead ends: 2532 [2021-12-14 17:51:02,961 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 [2021-12-14 17:51:02,968 INFO L933 BasicCegarLoop]: 1530 mSDtfsCounter, 3728 mSDsluCounter, 4146 mSDsCounter, 0 mSdLazyCounter, 5376 mSolverCounterSat, 2861 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4022 SdHoareTripleChecker+Valid, 5676 SdHoareTripleChecker+Invalid, 8251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2861 IncrementalHoareTripleChecker+Valid, 5376 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:51:02,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4022 Valid, 5676 Invalid, 8251 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2861 Valid, 5376 Invalid, 14 Unknown, 0 Unchecked, 43.4s Time] [2021-12-14 17:51:02,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2021-12-14 17:51:03,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 2245. [2021-12-14 17:51:03,165 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) [2021-12-14 17:51:03,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3168 transitions. [2021-12-14 17:51:03,181 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3168 transitions. Word has length 93 [2021-12-14 17:51:03,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:51:03,182 INFO L470 AbstractCegarLoop]: Abstraction has 2245 states and 3168 transitions. [2021-12-14 17:51:03,182 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) [2021-12-14 17:51:03,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3168 transitions. [2021-12-14 17:51:03,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-14 17:51:03,192 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:51:03,192 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] [2021-12-14 17:51:03,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:51:03,193 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:51:03,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:51:03,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1343295556, now seen corresponding path program 1 times [2021-12-14 17:51:03,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:51:03,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015393739] [2021-12-14 17:51:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:51:03,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:51:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:51:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:51:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:51:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:51:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 17:51:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 17:51:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:51:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 17:51:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 17:51:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 17:51:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:51:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-14 17:51:03,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:51:03,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015393739] [2021-12-14 17:51:03,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015393739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:51:03,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:51:03,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 17:51:03,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355111850] [2021-12-14 17:51:03,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:51:03,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 17:51:03,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:51:03,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 17:51:03,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:51:03,479 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) [2021-12-14 17:51:13,213 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 [] [2021-12-14 17:51:15,244 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 []