./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8a86e259c83ba45b1c49d177e1b075e49ba00372 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:51:15,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:51:15,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:51:15,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:51:15,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:51:15,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:51:15,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:51:15,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:51:15,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:51:15,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:51:15,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:51:15,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:51:15,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:51:15,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:51:15,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:51:15,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:51:15,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:51:15,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:51:15,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:51:15,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:51:15,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:51:15,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:51:15,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:51:15,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:51:15,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:51:15,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:51:15,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:51:15,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:51:15,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:51:15,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:51:15,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:51:15,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:51:15,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:51:15,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:51:15,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:51:15,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:51:15,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:51:15,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:51:15,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:51:15,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:51:15,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:51:15,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2019-11-26 02:51:15,556 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:51:15,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:51:15,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:51:15,558 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:51:15,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:51:15,558 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:51:15,558 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:51:15,559 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:51:15,559 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:51:15,559 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:51:15,559 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:51:15,559 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:51:15,560 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:51:15,560 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:51:15,560 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:51:15,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:51:15,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:51:15,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:51:15,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:51:15,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:51:15,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:51:15,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:51:15,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:51:15,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:51:15,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:51:15,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:51:15,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:51:15,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:51:15,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:51:15,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:51:15,564 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:51:15,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:51:15,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:51:15,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:51:15,565 INFO L138 SettingsManager]: * To the following directory=dump/ [2019-11-26 02:51:15,565 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 8a86e259c83ba45b1c49d177e1b075e49ba00372 [2019-11-26 02:51:15,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:51:15,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:51:15,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:51:15,718 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:51:15,718 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:51:15,719 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-11-26 02:51:15,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/data/c5cf7845b/965c1b38cd8543af8eec7e61324eb8b8/FLAGf3a1a90a2 [2019-11-26 02:51:16,432 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:51:16,433 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-11-26 02:51:16,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/data/c5cf7845b/965c1b38cd8543af8eec7e61324eb8b8/FLAGf3a1a90a2 [2019-11-26 02:51:16,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/data/c5cf7845b/965c1b38cd8543af8eec7e61324eb8b8 [2019-11-26 02:51:16,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:51:16,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:51:16,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:51:16,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:51:16,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:51:16,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:51:16" (1/1) ... [2019-11-26 02:51:16,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e9f74a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:16, skipping insertion in model container [2019-11-26 02:51:16,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:51:16" (1/1) ... [2019-11-26 02:51:16,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:51:16,707 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:51:17,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:51:17,824 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:51:17,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:51:18,076 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:51:18,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18 WrapperNode [2019-11-26 02:51:18,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:51:18,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:51:18,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:51:18,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:51:18,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... [2019-11-26 02:51:18,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... [2019-11-26 02:51:18,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:51:18,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:51:18,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:51:18,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:51:18,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... [2019-11-26 02:51:18,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... [2019-11-26 02:51:18,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... [2019-11-26 02:51:18,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... [2019-11-26 02:51:18,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... [2019-11-26 02:51:18,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... [2019-11-26 02:51:18,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... [2019-11-26 02:51:18,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:51:18,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:51:18,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:51:18,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:51:18,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:51:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:51:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:51:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:51:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-26 02:51:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:51:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-26 02:51:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:51:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:51:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:51:20,880 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:51:20,880 INFO L284 CfgBuilder]: Removed 127 assume(true) statements. [2019-11-26 02:51:20,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:20 BoogieIcfgContainer [2019-11-26 02:51:20,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:51:20,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:51:20,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:51:20,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:51:20,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:51:16" (1/3) ... [2019-11-26 02:51:20,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23855d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:51:20, skipping insertion in model container [2019-11-26 02:51:20,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:18" (2/3) ... [2019-11-26 02:51:20,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23855d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:51:20, skipping insertion in model container [2019-11-26 02:51:20,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:20" (3/3) ... [2019-11-26 02:51:20,892 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-11-26 02:51:20,903 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:51:20,910 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-26 02:51:20,919 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-26 02:51:20,947 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:51:20,948 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:51:20,948 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:51:20,948 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:51:20,948 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:51:20,948 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:51:20,948 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:51:20,949 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:51:20,969 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-11-26 02:51:20,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:51:20,981 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:20,981 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:20,982 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:20,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:20,988 INFO L82 PathProgramCache]: Analyzing trace with hash 361954066, now seen corresponding path program 1 times [2019-11-26 02:51:20,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:20,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321785571] [2019-11-26 02:51:21,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:21,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:21,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321785571] [2019-11-26 02:51:21,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:21,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:51:21,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316472448] [2019-11-26 02:51:21,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:21,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:21,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:21,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:21,564 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-11-26 02:51:21,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:21,687 INFO L93 Difference]: Finished difference Result 217 states and 356 transitions. [2019-11-26 02:51:21,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:21,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-26 02:51:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:21,708 INFO L225 Difference]: With dead ends: 217 [2019-11-26 02:51:21,708 INFO L226 Difference]: Without dead ends: 121 [2019-11-26 02:51:21,713 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:21,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-26 02:51:21,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 108. [2019-11-26 02:51:21,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-26 02:51:21,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 173 transitions. [2019-11-26 02:51:21,777 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 173 transitions. Word has length 16 [2019-11-26 02:51:21,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:21,778 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 173 transitions. [2019-11-26 02:51:21,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 173 transitions. [2019-11-26 02:51:21,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-26 02:51:21,781 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:21,781 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:21,781 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:21,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:21,782 INFO L82 PathProgramCache]: Analyzing trace with hash 737021437, now seen corresponding path program 1 times [2019-11-26 02:51:21,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:21,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878213802] [2019-11-26 02:51:21,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:22,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878213802] [2019-11-26 02:51:22,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:22,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:51:22,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225559545] [2019-11-26 02:51:22,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:51:22,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:22,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:51:22,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:51:22,027 INFO L87 Difference]: Start difference. First operand 108 states and 173 transitions. Second operand 7 states. [2019-11-26 02:51:22,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:22,465 INFO L93 Difference]: Finished difference Result 337 states and 544 transitions. [2019-11-26 02:51:22,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-26 02:51:22,465 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-11-26 02:51:22,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:22,468 INFO L225 Difference]: With dead ends: 337 [2019-11-26 02:51:22,468 INFO L226 Difference]: Without dead ends: 237 [2019-11-26 02:51:22,470 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:51:22,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2019-11-26 02:51:22,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 225. [2019-11-26 02:51:22,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-11-26 02:51:22,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 370 transitions. [2019-11-26 02:51:22,497 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 370 transitions. Word has length 18 [2019-11-26 02:51:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:22,497 INFO L462 AbstractCegarLoop]: Abstraction has 225 states and 370 transitions. [2019-11-26 02:51:22,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:51:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 370 transitions. [2019-11-26 02:51:22,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-26 02:51:22,498 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:22,499 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:22,499 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:22,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:22,500 INFO L82 PathProgramCache]: Analyzing trace with hash -288471169, now seen corresponding path program 1 times [2019-11-26 02:51:22,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:22,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225926246] [2019-11-26 02:51:22,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:22,666 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225926246] [2019-11-26 02:51:22,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:22,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:51:22,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010966458] [2019-11-26 02:51:22,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:22,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:22,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:22,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:22,667 INFO L87 Difference]: Start difference. First operand 225 states and 370 transitions. Second operand 3 states. [2019-11-26 02:51:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:22,679 INFO L93 Difference]: Finished difference Result 225 states and 370 transitions. [2019-11-26 02:51:22,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:22,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-11-26 02:51:22,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:22,688 INFO L225 Difference]: With dead ends: 225 [2019-11-26 02:51:22,690 INFO L226 Difference]: Without dead ends: 223 [2019-11-26 02:51:22,691 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2019-11-26 02:51:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2019-11-26 02:51:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-11-26 02:51:22,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 368 transitions. [2019-11-26 02:51:22,723 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 368 transitions. Word has length 21 [2019-11-26 02:51:22,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:22,724 INFO L462 AbstractCegarLoop]: Abstraction has 223 states and 368 transitions. [2019-11-26 02:51:22,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 368 transitions. [2019-11-26 02:51:22,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 02:51:22,725 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:22,726 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:22,729 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:22,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:22,730 INFO L82 PathProgramCache]: Analyzing trace with hash -352665122, now seen corresponding path program 1 times [2019-11-26 02:51:22,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:22,730 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355052088] [2019-11-26 02:51:22,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:22,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:22,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355052088] [2019-11-26 02:51:22,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:22,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:51:22,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118391069] [2019-11-26 02:51:22,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:22,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:22,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:22,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:22,869 INFO L87 Difference]: Start difference. First operand 223 states and 368 transitions. Second operand 3 states. [2019-11-26 02:51:22,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:22,878 INFO L93 Difference]: Finished difference Result 223 states and 368 transitions. [2019-11-26 02:51:22,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:22,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-26 02:51:22,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:22,880 INFO L225 Difference]: With dead ends: 223 [2019-11-26 02:51:22,880 INFO L226 Difference]: Without dead ends: 221 [2019-11-26 02:51:22,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:22,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2019-11-26 02:51:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2019-11-26 02:51:22,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-11-26 02:51:22,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 366 transitions. [2019-11-26 02:51:22,895 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 366 transitions. Word has length 22 [2019-11-26 02:51:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:22,895 INFO L462 AbstractCegarLoop]: Abstraction has 221 states and 366 transitions. [2019-11-26 02:51:22,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:22,896 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 366 transitions. [2019-11-26 02:51:22,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-26 02:51:22,897 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:22,897 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:22,897 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:22,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:22,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1952289641, now seen corresponding path program 1 times [2019-11-26 02:51:22,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:22,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949028546] [2019-11-26 02:51:22,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:23,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949028546] [2019-11-26 02:51:23,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:23,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:51:23,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877548857] [2019-11-26 02:51:23,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:23,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:23,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:23,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:23,032 INFO L87 Difference]: Start difference. First operand 221 states and 366 transitions. Second operand 3 states. [2019-11-26 02:51:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:23,042 INFO L93 Difference]: Finished difference Result 221 states and 366 transitions. [2019-11-26 02:51:23,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:23,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-26 02:51:23,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:23,044 INFO L225 Difference]: With dead ends: 221 [2019-11-26 02:51:23,044 INFO L226 Difference]: Without dead ends: 219 [2019-11-26 02:51:23,045 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-11-26 02:51:23,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2019-11-26 02:51:23,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-11-26 02:51:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 364 transitions. [2019-11-26 02:51:23,057 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 364 transitions. Word has length 23 [2019-11-26 02:51:23,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:23,057 INFO L462 AbstractCegarLoop]: Abstraction has 219 states and 364 transitions. [2019-11-26 02:51:23,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:23,057 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 364 transitions. [2019-11-26 02:51:23,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 02:51:23,059 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:23,060 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:23,061 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:23,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:23,061 INFO L82 PathProgramCache]: Analyzing trace with hash 391443272, now seen corresponding path program 1 times [2019-11-26 02:51:23,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:23,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69546678] [2019-11-26 02:51:23,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:23,205 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69546678] [2019-11-26 02:51:23,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:23,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:51:23,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334555876] [2019-11-26 02:51:23,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:23,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:23,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:23,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:23,207 INFO L87 Difference]: Start difference. First operand 219 states and 364 transitions. Second operand 3 states. [2019-11-26 02:51:23,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:23,241 INFO L93 Difference]: Finished difference Result 563 states and 940 transitions. [2019-11-26 02:51:23,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:23,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-26 02:51:23,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:23,246 INFO L225 Difference]: With dead ends: 563 [2019-11-26 02:51:23,247 INFO L226 Difference]: Without dead ends: 383 [2019-11-26 02:51:23,248 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:23,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-11-26 02:51:23,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 345. [2019-11-26 02:51:23,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-11-26 02:51:23,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 576 transitions. [2019-11-26 02:51:23,270 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 576 transitions. Word has length 24 [2019-11-26 02:51:23,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:23,271 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 576 transitions. [2019-11-26 02:51:23,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 576 transitions. [2019-11-26 02:51:23,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-26 02:51:23,275 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:23,275 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-26 02:51:23,279 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:23,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:23,279 INFO L82 PathProgramCache]: Analyzing trace with hash -2044526845, now seen corresponding path program 1 times [2019-11-26 02:51:23,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:23,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021146925] [2019-11-26 02:51:23,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:51:23,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021146925] [2019-11-26 02:51:23,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:23,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:51:23,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857725763] [2019-11-26 02:51:23,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:51:23,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:23,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:51:23,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:51:23,464 INFO L87 Difference]: Start difference. First operand 345 states and 576 transitions. Second operand 4 states. [2019-11-26 02:51:23,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:23,535 INFO L93 Difference]: Finished difference Result 921 states and 1546 transitions. [2019-11-26 02:51:23,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:51:23,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-26 02:51:23,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:23,542 INFO L225 Difference]: With dead ends: 921 [2019-11-26 02:51:23,542 INFO L226 Difference]: Without dead ends: 619 [2019-11-26 02:51:23,544 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:51:23,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-11-26 02:51:23,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 348. [2019-11-26 02:51:23,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-26 02:51:23,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 577 transitions. [2019-11-26 02:51:23,571 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 577 transitions. Word has length 30 [2019-11-26 02:51:23,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:23,571 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 577 transitions. [2019-11-26 02:51:23,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:51:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 577 transitions. [2019-11-26 02:51:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:51:23,575 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:23,575 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-26 02:51:23,576 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:23,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:23,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1673814540, now seen corresponding path program 1 times [2019-11-26 02:51:23,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:23,578 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085044635] [2019-11-26 02:51:23,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:51:23,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085044635] [2019-11-26 02:51:23,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:23,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:51:23,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116765953] [2019-11-26 02:51:23,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:23,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:23,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:23,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:23,697 INFO L87 Difference]: Start difference. First operand 348 states and 577 transitions. Second operand 3 states. [2019-11-26 02:51:23,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:23,797 INFO L93 Difference]: Finished difference Result 651 states and 1080 transitions. [2019-11-26 02:51:23,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:23,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-11-26 02:51:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:23,800 INFO L225 Difference]: With dead ends: 651 [2019-11-26 02:51:23,800 INFO L226 Difference]: Without dead ends: 346 [2019-11-26 02:51:23,801 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:23,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2019-11-26 02:51:23,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 345. [2019-11-26 02:51:23,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-11-26 02:51:23,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 571 transitions. [2019-11-26 02:51:23,828 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 571 transitions. Word has length 31 [2019-11-26 02:51:23,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:23,829 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 571 transitions. [2019-11-26 02:51:23,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:23,829 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 571 transitions. [2019-11-26 02:51:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-26 02:51:23,830 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:23,830 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 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] [2019-11-26 02:51:23,830 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:23,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:23,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1624332707, now seen corresponding path program 1 times [2019-11-26 02:51:23,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:23,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018429021] [2019-11-26 02:51:23,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:51:24,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018429021] [2019-11-26 02:51:24,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:24,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:51:24,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786982576] [2019-11-26 02:51:24,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:51:24,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:24,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:51:24,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:51:24,135 INFO L87 Difference]: Start difference. First operand 345 states and 571 transitions. Second operand 4 states. [2019-11-26 02:51:24,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:24,193 INFO L93 Difference]: Finished difference Result 460 states and 768 transitions. [2019-11-26 02:51:24,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:51:24,194 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-11-26 02:51:24,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:24,195 INFO L225 Difference]: With dead ends: 460 [2019-11-26 02:51:24,195 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:51:24,196 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:51:24,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:51:24,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:51:24,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:51:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:51:24,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-11-26 02:51:24,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:24,199 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:51:24,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:51:24,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:51:24,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:51:24,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:51:25,074 INFO L444 ceAbstractionStarter]: For program point L6014(line 6014) no Hoare annotation was computed. [2019-11-26 02:51:25,074 INFO L444 ceAbstractionStarter]: For program point L6113(line 6113) no Hoare annotation was computed. [2019-11-26 02:51:25,074 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-11-26 02:51:25,074 INFO L444 ceAbstractionStarter]: For program point L6114(lines 6114 6150) no Hoare annotation was computed. [2019-11-26 02:51:25,074 INFO L444 ceAbstractionStarter]: For program point L6015(lines 6015 6030) no Hoare annotation was computed. [2019-11-26 02:51:25,074 INFO L444 ceAbstractionStarter]: For program point L6181(line 6181) no Hoare annotation was computed. [2019-11-26 02:51:25,075 INFO L444 ceAbstractionStarter]: For program point L6842(lines 6842 6845) no Hoare annotation was computed. [2019-11-26 02:51:25,075 INFO L440 ceAbstractionStarter]: At program point L6908(lines 1 7019) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,075 INFO L440 ceAbstractionStarter]: At program point L6842-1(lines 6842 6845) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,075 INFO L444 ceAbstractionStarter]: For program point L6050(line 6050) no Hoare annotation was computed. [2019-11-26 02:51:25,075 INFO L444 ceAbstractionStarter]: For program point L6051(lines 6051 6111) no Hoare annotation was computed. [2019-11-26 02:51:25,075 INFO L444 ceAbstractionStarter]: For program point L6018(line 6018) no Hoare annotation was computed. [2019-11-26 02:51:25,075 INFO L444 ceAbstractionStarter]: For program point L6117(line 6117) no Hoare annotation was computed. [2019-11-26 02:51:25,076 INFO L440 ceAbstractionStarter]: At program point L6118(lines 6118 6123) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,076 INFO L440 ceAbstractionStarter]: At program point L6019(lines 6019 6023) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,076 INFO L440 ceAbstractionStarter]: At program point L6086(line 6086) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,076 INFO L444 ceAbstractionStarter]: For program point L6152(line 6152) no Hoare annotation was computed. [2019-11-26 02:51:25,076 INFO L444 ceAbstractionStarter]: For program point L6318(line 6318) no Hoare annotation was computed. [2019-11-26 02:51:25,076 INFO L444 ceAbstractionStarter]: For program point L6318-4(line 6318) no Hoare annotation was computed. [2019-11-26 02:51:25,076 INFO L444 ceAbstractionStarter]: For program point L6318-3(line 6318) no Hoare annotation was computed. [2019-11-26 02:51:25,076 INFO L444 ceAbstractionStarter]: For program point L6318-2(line 6318) no Hoare annotation was computed. [2019-11-26 02:51:25,076 INFO L444 ceAbstractionStarter]: For program point L6318-1(line 6318) no Hoare annotation was computed. [2019-11-26 02:51:25,077 INFO L440 ceAbstractionStarter]: At program point L6054(line 6054) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,077 INFO L444 ceAbstractionStarter]: For program point L6153(lines 6153 6168) no Hoare annotation was computed. [2019-11-26 02:51:25,077 INFO L444 ceAbstractionStarter]: For program point L6318-5(line 6318) no Hoare annotation was computed. [2019-11-26 02:51:25,077 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-11-26 02:51:25,077 INFO L444 ceAbstractionStarter]: For program point L6188(line 6188) no Hoare annotation was computed. [2019-11-26 02:51:25,077 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-11-26 02:51:25,077 INFO L444 ceAbstractionStarter]: For program point L6189(lines 6189 6204) no Hoare annotation was computed. [2019-11-26 02:51:25,077 INFO L440 ceAbstractionStarter]: At program point L6156(line 6156) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,077 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-11-26 02:51:25,077 INFO L444 ceAbstractionStarter]: For program point L6025(line 6025) no Hoare annotation was computed. [2019-11-26 02:51:25,078 INFO L444 ceAbstractionStarter]: For program point L6125(line 6125) no Hoare annotation was computed. [2019-11-26 02:51:25,078 INFO L444 ceAbstractionStarter]: For program point L6951(lines 6950 6968) no Hoare annotation was computed. [2019-11-26 02:51:25,078 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-11-26 02:51:25,078 INFO L440 ceAbstractionStarter]: At program point L6126(lines 6126 6143) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,078 INFO L440 ceAbstractionStarter]: At program point L6192(line 6192) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,078 INFO L444 ceAbstractionStarter]: For program point L6128-2(lines 6126 6142) no Hoare annotation was computed. [2019-11-26 02:51:25,078 INFO L440 ceAbstractionStarter]: At program point L6096(line 6096) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,078 INFO L444 ceAbstractionStarter]: For program point L6955(lines 6950 6968) no Hoare annotation was computed. [2019-11-26 02:51:25,078 INFO L444 ceAbstractionStarter]: For program point L6163(line 6163) no Hoare annotation was computed. [2019-11-26 02:51:25,078 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:51:25,079 INFO L440 ceAbstractionStarter]: At program point L6329(lines 6329 6332) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,079 INFO L440 ceAbstractionStarter]: At program point L6065(line 6065) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,079 INFO L444 ceAbstractionStarter]: For program point L6032(line 6032) no Hoare annotation was computed. [2019-11-26 02:51:25,079 INFO L444 ceAbstractionStarter]: For program point L6033(lines 6033 6048) no Hoare annotation was computed. [2019-11-26 02:51:25,079 INFO L444 ceAbstractionStarter]: For program point L6199(line 6199) no Hoare annotation was computed. [2019-11-26 02:51:25,079 INFO L444 ceAbstractionStarter]: For program point L6959(lines 6950 6968) no Hoare annotation was computed. [2019-11-26 02:51:25,079 INFO L440 ceAbstractionStarter]: At program point L6036(line 6036) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,079 INFO L440 ceAbstractionStarter]: At program point L5838(lines 5838 5841) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_lock~0)) (.cse1 (= 1 ~ldv_mutex_i_mutex_of_inode~0)) (.cse2 (= 1 ~ldv_mutex_mutex_of_device~0)) (.cse3 (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|))) (or (and .cse0 (= 1 ~ldv_mutex_udev~0) (<= (+ ULTIMATE.start_m5632_recover_~r~0 1) 0) .cse1 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| 1) 0) .cse2 .cse3) (and (<= 0 ULTIMATE.start_m5632_recover_~r~0) .cse0 .cse1 .cse2 (= 2 ~ldv_mutex_udev~0) (= 0 |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res|) .cse3))) [2019-11-26 02:51:25,079 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:51:25,080 INFO L444 ceAbstractionStarter]: For program point L6170(line 6170) no Hoare annotation was computed. [2019-11-26 02:51:25,080 INFO L447 ceAbstractionStarter]: At program point L6963(lines 6948 6969) the Hoare annotation is: true [2019-11-26 02:51:25,085 INFO L444 ceAbstractionStarter]: For program point L6171(lines 6171 6186) no Hoare annotation was computed. [2019-11-26 02:51:25,085 INFO L440 ceAbstractionStarter]: At program point L6139(lines 6951 6954) the Hoare annotation is: (and (not (= ~ldv_state_variable_0~0 3)) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1)) [2019-11-26 02:51:25,085 INFO L444 ceAbstractionStarter]: For program point L6106(line 6106) no Hoare annotation was computed. [2019-11-26 02:51:25,086 INFO L440 ceAbstractionStarter]: At program point L6932(lines 6932 6938) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,086 INFO L444 ceAbstractionStarter]: For program point L6206(line 6206) no Hoare annotation was computed. [2019-11-26 02:51:25,086 INFO L440 ceAbstractionStarter]: At program point L6174(line 6174) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,086 INFO L444 ceAbstractionStarter]: For program point L6043(line 6043) no Hoare annotation was computed. [2019-11-26 02:51:25,087 INFO L440 ceAbstractionStarter]: At program point L6209(lines 5988 6214) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-11-26 02:51:25,087 INFO L440 ceAbstractionStarter]: At program point L-1-2(line -1) the Hoare annotation is: (and (not (= ~ldv_state_variable_0~0 3)) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1)) [2019-11-26 02:51:25,087 INFO L440 ceAbstractionStarter]: At program point L-1-5(line -1) the Hoare annotation is: (and (not (= ~ldv_state_variable_0~0 3)) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1)) [2019-11-26 02:51:25,088 INFO L444 ceAbstractionStarter]: For program point L6903-1(lines 6903 6906) no Hoare annotation was computed. [2019-11-26 02:51:25,088 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-11-26 02:51:25,088 INFO L444 ceAbstractionStarter]: For program point L6903(lines 6903 6906) no Hoare annotation was computed. [2019-11-26 02:51:25,088 INFO L440 ceAbstractionStarter]: At program point L-1-8(line -1) the Hoare annotation is: (and (not (= ~ldv_state_variable_0~0 3)) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1)) [2019-11-26 02:51:25,088 INFO L440 ceAbstractionStarter]: At program point L-1-11(line -1) the Hoare annotation is: (and (not (= ~ldv_state_variable_0~0 3)) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1)) [2019-11-26 02:51:25,088 INFO L440 ceAbstractionStarter]: At program point L-1-14(line -1) the Hoare annotation is: (and (not (= ~ldv_state_variable_0~0 3)) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1)) [2019-11-26 02:51:25,089 INFO L440 ceAbstractionStarter]: At program point L-1-17(line -1) the Hoare annotation is: (and (not (= ~ldv_state_variable_0~0 3)) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1)) [2019-11-26 02:51:25,089 INFO L440 ceAbstractionStarter]: At program point L-1-20(line -1) the Hoare annotation is: (and (not (= ~ldv_state_variable_0~0 3)) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1)) [2019-11-26 02:51:25,089 INFO L440 ceAbstractionStarter]: At program point L-1-23(line -1) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,089 INFO L440 ceAbstractionStarter]: At program point L6937(lines 6926 6940) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_lock~0)) (.cse1 (= 1 ~ldv_mutex_i_mutex_of_inode~0)) (.cse2 (= 1 ~ldv_mutex_mutex_of_device~0)) (.cse3 (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|))) (or (and .cse0 .cse1 .cse2 (= 2 ~ldv_mutex_udev~0) (= 0 |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res|) .cse3) (and .cse0 (= 1 ~ldv_mutex_udev~0) .cse1 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| 1) 0) .cse2 .cse3))) [2019-11-26 02:51:25,089 INFO L447 ceAbstractionStarter]: At program point L5781-2(lines 5780 5783) the Hoare annotation is: true [2019-11-26 02:51:25,090 INFO L447 ceAbstractionStarter]: At program point L5781-3(lines 5780 5783) the Hoare annotation is: true [2019-11-26 02:51:25,090 INFO L447 ceAbstractionStarter]: At program point L5781(lines 5780 5783) the Hoare annotation is: true [2019-11-26 02:51:25,090 INFO L447 ceAbstractionStarter]: At program point L5781-1(lines 5780 5783) the Hoare annotation is: true [2019-11-26 02:51:25,090 INFO L447 ceAbstractionStarter]: At program point L5781-6(lines 5780 5783) the Hoare annotation is: true [2019-11-26 02:51:25,091 INFO L447 ceAbstractionStarter]: At program point L5781-7(lines 5780 5783) the Hoare annotation is: true [2019-11-26 02:51:25,091 INFO L447 ceAbstractionStarter]: At program point L5781-4(lines 5780 5783) the Hoare annotation is: true [2019-11-26 02:51:25,091 INFO L447 ceAbstractionStarter]: At program point L5781-5(lines 5780 5783) the Hoare annotation is: true [2019-11-26 02:51:25,091 INFO L447 ceAbstractionStarter]: At program point L5781-8(lines 5780 5783) the Hoare annotation is: true [2019-11-26 02:51:25,091 INFO L440 ceAbstractionStarter]: At program point L6079(line 6079) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (or (not (= ULTIMATE.start_main_~tmp___5~0 ~ldv_state_variable_0~0)) |ULTIMATE.start_main_#t~switch54|)) [2019-11-26 02:51:25,091 INFO L444 ceAbstractionStarter]: For program point L6145(line 6145) no Hoare annotation was computed. [2019-11-26 02:51:25,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:51:25 BoogieIcfgContainer [2019-11-26 02:51:25,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:51:25,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:51:25,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:51:25,182 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:51:25,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:20" (3/4) ... [2019-11-26 02:51:25,186 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:51:25,229 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 102 nodes and edges [2019-11-26 02:51:25,242 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2019-11-26 02:51:25,245 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:51:25,247 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:51:25,250 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:51:25,296 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_lock && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux)) || (((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && \result + 1 <= 0) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux)) [2019-11-26 02:51:25,303 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && r + 1 <= 0) && 1 == ldv_mutex_i_mutex_of_inode) && \result + 1 <= 0) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux)) || ((((((0 <= r && 1 == ldv_mutex_lock) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux)) [2019-11-26 02:51:25,771 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1d186646-461f-419a-a9f2-b4df6190703d/bin/utaipan/witness.graphml [2019-11-26 02:51:25,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:51:25,773 INFO L168 Benchmark]: Toolchain (without parser) took 9180.15 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 386.9 MB). Free memory was 939.2 MB in the beginning and 1.3 GB in the end (delta: -406.8 MB). Peak memory consumption was 311.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:25,775 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:25,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1483.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -115.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:25,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:25,777 INFO L168 Benchmark]: Boogie Preprocessor took 95.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:25,780 INFO L168 Benchmark]: RCFGBuilder took 2600.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 973.1 MB in the end (delta: 60.2 MB). Peak memory consumption was 167.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:25,780 INFO L168 Benchmark]: TraceAbstraction took 4295.29 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 973.1 MB in the beginning and 1.0 GB in the end (delta: -63.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:25,781 INFO L168 Benchmark]: Witness Printer took 589.88 ms. Allocated memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: 159.4 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -309.7 MB). Peak memory consumption was 180.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:25,783 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1483.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -115.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 109.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 95.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2600.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 973.1 MB in the end (delta: 60.2 MB). Peak memory consumption was 167.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4295.29 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 973.1 MB in the beginning and 1.0 GB in the end (delta: -63.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Witness Printer took 589.88 ms. Allocated memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: 159.4 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -309.7 MB). Peak memory consumption was 180.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 6156]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 5988]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5838]: Loop Invariant Derived loop invariant: ((((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && r + 1 <= 0) && 1 == ldv_mutex_i_mutex_of_inode) && \result + 1 <= 0) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux)) || ((((((0 <= r && 1 == ldv_mutex_lock) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((((!(ldv_state_variable_0 == 3) && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_lock == 1 - InvariantResult [Line: 6079]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 6842]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 6926]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_lock && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux)) || (((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && \result + 1 <= 0) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux)) - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6019]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((((!(ldv_state_variable_0 == 3) && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_lock == 1 - InvariantResult [Line: 6065]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 6054]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 6118]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 6096]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((((!(ldv_state_variable_0 == 3) && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_lock == 1 - InvariantResult [Line: 6036]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 6932]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 6948]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((((!(ldv_state_variable_0 == 3) && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_lock == 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((((!(ldv_state_variable_0 == 3) && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_lock == 1 - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6329]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 6126]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((((!(ldv_state_variable_0 == 3) && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_lock == 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_0 == 1) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6086]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 6951]: Loop Invariant Derived loop invariant: (((!(ldv_state_variable_0 == 3) && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_lock == 1 - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6192]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((((!(ldv_state_variable_0 == 3) && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_lock == 1 - InvariantResult [Line: 6174]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && (!(tmp___5 == ldv_state_variable_0) || aux-switch (tmp___5) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_6 == 1) { m5632_recover(ldvarg0); ldv_state_variable_6 = 1; } else { } goto ldv_45168; default: ldv_stop(); } ldv_45168: ; } else { } goto ldv_45170; case 1: ; if (ldv_state_variable_4 != 0) { tmp___7 = __VERIFIER_nondet_int(); switch (tmp___7) { case 0: ; if (ldv_state_variable_4 == 1) { always_connected(ldvarg1); ldv_state_variable_4 = 1; } else { } goto ldv_45173; default: ldv_stop(); } ldv_45173: ; } else { } goto ldv_45170; case 2: ; if (ldv_state_variable_1 != 0) { tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { ldv_retval_2 = usbnet_probe(cdc_subset_driver_group1, (struct usb_device_id const *)ldvarg3); if (ldv_retval_2 == 0) { ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_45177; case 1: ; if (ldv_state_variable_1 == 3 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_1 == 2 && usb_counter == 0) { usbnet_disconnect(cdc_subset_driver_group1); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_45177; case 2: ; if (ldv_state_variable_1 == 2) { usbnet_suspend(cdc_subset_driver_group1, ldvarg2); ldv_state_variable_1 = 3; } else { } goto ldv_45177; case 3: ; if (ldv_state_variable_1 == 3) { ldv_retval_1 = usbnet_resume(cdc_subset_driver_group1); if (ldv_retval_1 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; case 4: ; if (ldv_state_variable_1 == 3) { ldv_retval_0 = ldv_reset_resume_1(); if (ldv_retval_0 == 0) { ldv_state_variable_1 = 2; } else { } } else { } goto ldv_45177; default: ldv_stop(); } ldv_45177: ; } else { } goto ldv_45170; case 3: ; if (ldv_state_variable_0 != 0) { tmp___9 = __VERIFIER_nondet_int(); switch (tmp___9) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { cdc_subset_driver_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_45186; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_3 = cdc_subset_driver_init(); if (ldv_retval_3 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_state_variable_2 = 1; ldv_state_variable_3 = 1; ldv_state_variable_4 = 1; ldv_state_variable_6 = 1; } else { } if (ldv_retval_3 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_45186; default: ldv_stop(); } ldv_45186: ; } else { } goto ldv_45170; case 4: ; if (ldv_state_variable_3 != 0) { tmp___10 = __VERIFIER_nondet_int(); switch (tmp___10) { case 0: ; if (ldv_state_variable_3 == 1) { always_connected(ldvarg4); ldv_state_variable_3 = 1; } else { } goto ldv_45191; default: ldv_stop(); } ldv_45191: ; } else { } goto ldv_45170; case 5: ; if (ldv_state_variable_2 != 0) { tmp___11 = __VERIFIER_nondet_int(); switch (tmp___11) { case 0: ; if (ldv_state_variable_2 == 1) { always_connected(ldvarg5); ldv_state_variable_2 = 1; } else { } goto ldv_45195; default: ldv_stop(); } ldv_45195: ; } else { } goto ldv_45170; case 6: ; if (ldv_state_variable_5 != 0) { tmp___12 = __VERIFIER_nondet_int(); switch (tmp___12) { case 0: ; if (ldv_state_variable_5 == 1) { always_connected(ldvarg6); ldv_state_variable_5 = 1; } else { } goto ldv_45199; default: ldv_stop(); } ldv_45199: ; } else { } goto ldv_45170; default: ldv_stop(); }-aux) - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 6 error locations. Result: SAFE, OverallTime: 4.1s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, HoareTripleCheckerStatistics: 1197 SDtfs, 1323 SDslu, 1118 SDs, 0 SdLazy, 126 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 335 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 38 PreInvPairs, 165 NumberOfFragments, 608 HoareAnnotationTreeSize, 38 FomulaSimplifications, 6220 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 38 FomulaSimplificationsInter, 97 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 223 NumberOfCodeBlocks, 223 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 10123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 15/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...