./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 e19ca921 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-e19ca92 [2021-12-22 14:44:14,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:44:14,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:44:14,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:44:14,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:44:14,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:44:14,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:44:14,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:44:14,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:44:14,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:44:14,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:44:14,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:44:14,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:44:14,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:44:14,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:44:14,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:44:14,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:44:14,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:44:14,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:44:14,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:44:14,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:44:14,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:44:14,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:44:14,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:44:14,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:44:14,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:44:14,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:44:14,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:44:14,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:44:14,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:44:14,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:44:14,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:44:14,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:44:14,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:44:14,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:44:14,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:44:14,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:44:14,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:44:14,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:44:14,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:44:14,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:44:14,493 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:44:14,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:44:14,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:44:14,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:44:14,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:44:14,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:44:14,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:44:14,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:44:14,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:44:14,517 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:44:14,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:44:14,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:44:14,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:44:14,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:44:14,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:44:14,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:44:14,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:44:14,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:44:14,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:44:14,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:44:14,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:44:14,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:44:14,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:44:14,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:44:14,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:44:14,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:44:14,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:44:14,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:44:14,521 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:44:14,521 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:44:14,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:44:14,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:44:14,522 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2021-12-22 14:44:14,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:44:14,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:44:14,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:44:14,853 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:44:14,853 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:44:14,855 INFO L432 ainManager$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 [2021-12-22 14:44:14,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e028bd119/7123269597ba4d17afac2812ed9f4dd0/FLAG9f5c9274d [2021-12-22 14:44:15,713 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:44:15,713 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 [2021-12-22 14:44:15,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e028bd119/7123269597ba4d17afac2812ed9f4dd0/FLAG9f5c9274d [2021-12-22 14:44:16,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e028bd119/7123269597ba4d17afac2812ed9f4dd0 [2021-12-22 14:44:16,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:44:16,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:44:16,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:44:16,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:44:16,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:44:16,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:44:16" (1/1) ... [2021-12-22 14:44:16,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200dcd71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:16, skipping insertion in model container [2021-12-22 14:44:16,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:44:16" (1/1) ... [2021-12-22 14:44:16,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:44:16,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:44:16,894 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-12-22 14:44:16,894 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] [2021-12-22 14:44:17,197 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] [2021-12-22 14:44:18,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:44:18,309 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:44:18,448 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-12-22 14:44:18,450 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] [2021-12-22 14:44:18,461 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] [2021-12-22 14:44:18,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:44:18,745 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:44:18,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18 WrapperNode [2021-12-22 14:44:18,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:44:18,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:44:18,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:44:18,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:44:18,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:18,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:19,057 INFO L137 Inliner]: procedures = 219, calls = 1605, calls flagged for inlining = 116, calls inlined = 113, statements flattened = 3091 [2021-12-22 14:44:19,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:44:19,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:44:19,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:44:19,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:44:19,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:19,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:19,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:19,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:19,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:19,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:19,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:19,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:44:19,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:44:19,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:44:19,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:44:19,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (1/1) ... [2021-12-22 14:44:19,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:44:19,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:44:19,416 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) [2021-12-22 14:44:19,428 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 [2021-12-22 14:44:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:44:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:44:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:44:19,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:44:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 14:44:19,455 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 14:44:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 14:44:19,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 14:44:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:44:19,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:44:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 14:44:19,456 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 14:44:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:44:19,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:44:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 14:44:19,457 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 14:44:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:44:19,457 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:44:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:44:19,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:44:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 14:44:19,457 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 14:44:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-22 14:44:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-22 14:44:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 14:44:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 14:44:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:44:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2021-12-22 14:44:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2021-12-22 14:44:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:44:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-22 14:44:19,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-22 14:44:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:44:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:44:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:44:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-22 14:44:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-22 14:44:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:44:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2021-12-22 14:44:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2021-12-22 14:44:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-22 14:44:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-22 14:44:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2021-12-22 14:44:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2021-12-22 14:44:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 14:44:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 14:44:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-22 14:44:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-22 14:44:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 14:44:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 14:44:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2021-12-22 14:44:19,463 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2021-12-22 14:44:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2021-12-22 14:44:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2021-12-22 14:44:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:44:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:44:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2021-12-22 14:44:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2021-12-22 14:44:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:44:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:44:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:44:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2021-12-22 14:44:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2021-12-22 14:44:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2021-12-22 14:44:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2021-12-22 14:44:19,467 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 14:44:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 14:44:19,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:44:19,467 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-22 14:44:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-22 14:44:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-22 14:44:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-22 14:44:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:44:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2021-12-22 14:44:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2021-12-22 14:44:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 14:44:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 14:44:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 14:44:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 14:44:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2021-12-22 14:44:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2021-12-22 14:44:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 14:44:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 14:44:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 14:44:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 14:44:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-22 14:44:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-22 14:44:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:44:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 14:44:19,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 14:44:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-22 14:44:19,471 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-22 14:44:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-22 14:44:19,472 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-22 14:44:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:44:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:44:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:44:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-22 14:44:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-22 14:44:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2021-12-22 14:44:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2021-12-22 14:44:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:44:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2021-12-22 14:44:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2021-12-22 14:44:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 14:44:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 14:44:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:44:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2021-12-22 14:44:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2021-12-22 14:44:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-22 14:44:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-22 14:44:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2021-12-22 14:44:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2021-12-22 14:44:19,476 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2021-12-22 14:44:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2021-12-22 14:44:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2021-12-22 14:44:19,479 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2021-12-22 14:44:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:44:19,479 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:44:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:44:19,481 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:44:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-22 14:44:19,481 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-22 14:44:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:44:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2021-12-22 14:44:19,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2021-12-22 14:44:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-22 14:44:19,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-22 14:44:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:44:19,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:44:20,177 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:44:20,179 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:44:20,504 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:44:33,343 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:44:33,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:44:33,366 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:44:33,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:44:33 BoogieIcfgContainer [2021-12-22 14:44:33,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:44:33,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:44:33,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:44:33,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:44:33,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:44:16" (1/3) ... [2021-12-22 14:44:33,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cdfd3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:44:33, skipping insertion in model container [2021-12-22 14:44:33,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:18" (2/3) ... [2021-12-22 14:44:33,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cdfd3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:44:33, skipping insertion in model container [2021-12-22 14:44:33,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:44:33" (3/3) ... [2021-12-22 14:44:33,380 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 [2021-12-22 14:44:33,385 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:44:33,385 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:44:33,445 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:44:33,452 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 [2021-12-22 14:44:33,452 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:44:33,502 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) [2021-12-22 14:44:33,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-22 14:44:33,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:44:33,535 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] [2021-12-22 14:44:33,536 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:44:33,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:44:33,542 INFO L85 PathProgramCache]: Analyzing trace with hash -359999737, now seen corresponding path program 1 times [2021-12-22 14:44:33,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:44:33,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052836478] [2021-12-22 14:44:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:44:33,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:44:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:44:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:44:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:44:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-22 14:44:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-22 14:44:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 14:44:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:44:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:44:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 14:44:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 14:44:34,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:44:34,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052836478] [2021-12-22 14:44:34,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052836478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:44:34,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:44:34,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 14:44:34,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554422721] [2021-12-22 14:44:34,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:44:34,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:44:34,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:44:34,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:44:34,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:44:34,288 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) [2021-12-22 14:44:38,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:44:40,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:44:42,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:44:49,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:44:51,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:44:53,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:44:55,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:44:57,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:45:03,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:45:04,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:45:07,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:45:12,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:45:14,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:45:16,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:45:18,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:45:20,572 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 []