./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-commit-tester/m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-commit-tester/m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d5417a05becbb9d46edf6af50ad8bf51bbb8a1b7 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-commit-tester/m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d5417a05becbb9d46edf6af50ad8bf51bbb8a1b7 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-13 07:05:31,418 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 07:05:31,420 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 07:05:31,431 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 07:05:31,432 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 07:05:31,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 07:05:31,435 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 07:05:31,437 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 07:05:31,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 07:05:31,440 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 07:05:31,441 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 07:05:31,441 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 07:05:31,442 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 07:05:31,443 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 07:05:31,445 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 07:05:31,446 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 07:05:31,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 07:05:31,449 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 07:05:31,451 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 07:05:31,453 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 07:05:31,454 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 07:05:31,456 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 07:05:31,459 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 07:05:31,459 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 07:05:31,459 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 07:05:31,461 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 07:05:31,462 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 07:05:31,463 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 07:05:31,464 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 07:05:31,466 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 07:05:31,466 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 07:05:31,467 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 07:05:31,467 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 07:05:31,468 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 07:05:31,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 07:05:31,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 07:05:31,470 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-01-13 07:05:31,486 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 07:05:31,487 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 07:05:31,488 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 07:05:31,488 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 07:05:31,489 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 07:05:31,489 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 07:05:31,489 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 07:05:31,489 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 07:05:31,489 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-13 07:05:31,490 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 07:05:31,490 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-13 07:05:31,490 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-13 07:05:31,490 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 07:05:31,490 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-13 07:05:31,490 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 07:05:31,492 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 07:05:31,492 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 07:05:31,492 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 07:05:31,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 07:05:31,493 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 07:05:31,493 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 07:05:31,493 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-13 07:05:31,493 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 07:05:31,493 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 07:05:31,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-13 07:05:31,494 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-13 07:05:31,495 INFO L133 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5417a05becbb9d46edf6af50ad8bf51bbb8a1b7 [2019-01-13 07:05:31,531 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 07:05:31,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 07:05:31,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 07:05:31,550 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 07:05:31,551 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 07:05:31,552 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-commit-tester/m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-13 07:05:31,610 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff034bedd/e99ba504782140039b8fc0b5459788ae/FLAGe080b596d [2019-01-13 07:05:32,344 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 07:05:32,345 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-commit-tester/m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-13 07:05:32,386 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff034bedd/e99ba504782140039b8fc0b5459788ae/FLAGe080b596d [2019-01-13 07:05:32,439 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff034bedd/e99ba504782140039b8fc0b5459788ae [2019-01-13 07:05:32,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 07:05:32,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-13 07:05:32,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 07:05:32,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 07:05:32,455 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 07:05:32,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 07:05:32" (1/1) ... [2019-01-13 07:05:32,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f7ebfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:32, skipping insertion in model container [2019-01-13 07:05:32,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 07:05:32" (1/1) ... [2019-01-13 07:05:32,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 07:05:32,587 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 07:05:33,902 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 07:05:33,919 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 07:05:34,232 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 07:05:34,379 INFO L195 MainTranslator]: Completed translation [2019-01-13 07:05:34,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34 WrapperNode [2019-01-13 07:05:34,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 07:05:34,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-13 07:05:34,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-13 07:05:34,382 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-13 07:05:34,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... [2019-01-13 07:05:34,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... [2019-01-13 07:05:34,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-13 07:05:34,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 07:05:34,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 07:05:34,602 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 07:05:34,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... [2019-01-13 07:05:34,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... [2019-01-13 07:05:34,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... [2019-01-13 07:05:34,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... [2019-01-13 07:05:34,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... [2019-01-13 07:05:34,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... [2019-01-13 07:05:34,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... [2019-01-13 07:05:34,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 07:05:34,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 07:05:34,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 07:05:34,739 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 07:05:34,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-13 07:05:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-13 07:05:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 07:05:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 07:05:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-13 07:05:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 07:05:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-13 07:05:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-13 07:05:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 07:05:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 07:05:36,406 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 07:05:36,406 INFO L286 CfgBuilder]: Removed 99 assue(true) statements. [2019-01-13 07:05:36,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 07:05:36 BoogieIcfgContainer [2019-01-13 07:05:36,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 07:05:36,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 07:05:36,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 07:05:36,412 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 07:05:36,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 07:05:32" (1/3) ... [2019-01-13 07:05:36,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c68df2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 07:05:36, skipping insertion in model container [2019-01-13 07:05:36,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:34" (2/3) ... [2019-01-13 07:05:36,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c68df2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 07:05:36, skipping insertion in model container [2019-01-13 07:05:36,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 07:05:36" (3/3) ... [2019-01-13 07:05:36,416 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-13 07:05:36,426 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 07:05:36,434 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-13 07:05:36,451 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-13 07:05:36,480 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 07:05:36,480 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 07:05:36,481 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-13 07:05:36,481 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 07:05:36,481 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 07:05:36,481 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 07:05:36,481 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 07:05:36,481 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 07:05:36,482 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 07:05:36,495 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-01-13 07:05:36,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-13 07:05:36,501 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 07:05:36,502 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 07:05:36,504 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 07:05:36,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 07:05:36,509 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-01-13 07:05:36,510 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 07:05:36,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 07:05:36,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 07:05:36,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 07:05:36,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 07:05:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 07:05:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 07:05:36,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 07:05:36,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-13 07:05:36,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-13 07:05:36,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-13 07:05:36,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 07:05:36,906 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-01-13 07:05:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 07:05:37,083 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-01-13 07:05:37,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-13 07:05:37,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-01-13 07:05:37,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 07:05:37,102 INFO L225 Difference]: With dead ends: 211 [2019-01-13 07:05:37,102 INFO L226 Difference]: Without dead ends: 132 [2019-01-13 07:05:37,107 INFO L631 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 [2019-01-13 07:05:37,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-01-13 07:05:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-01-13 07:05:37,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-01-13 07:05:37,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-01-13 07:05:37,165 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-01-13 07:05:37,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 07:05:37,166 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-01-13 07:05:37,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-13 07:05:37,166 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-01-13 07:05:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-01-13 07:05:37,168 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 07:05:37,169 INFO L402 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, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 07:05:37,169 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 07:05:37,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 07:05:37,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-01-13 07:05:37,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 07:05:37,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 07:05:37,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 07:05:37,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 07:05:37,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 07:05:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 07:05:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-01-13 07:05:37,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 07:05:37,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 07:05:37,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 07:05:37,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 07:05:37,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 07:05:37,431 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 4 states. [2019-01-13 07:05:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 07:05:37,535 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-01-13 07:05:37,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-13 07:05:37,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-01-13 07:05:37,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 07:05:37,538 INFO L225 Difference]: With dead ends: 258 [2019-01-13 07:05:37,539 INFO L226 Difference]: Without dead ends: 132 [2019-01-13 07:05:37,540 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-13 07:05:37,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-01-13 07:05:37,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-01-13 07:05:37,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-01-13 07:05:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-01-13 07:05:37,566 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-01-13 07:05:37,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 07:05:37,567 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-01-13 07:05:37,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 07:05:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-01-13 07:05:37,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-01-13 07:05:37,569 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 07:05:37,569 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 07:05:37,570 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 07:05:37,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 07:05:37,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-01-13 07:05:37,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 07:05:37,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 07:05:37,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 07:05:37,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 07:05:37,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 07:05:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 07:05:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 07:05:38,348 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-13 07:05:38,484 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,485 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,487 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,495 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,496 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,497 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,501 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,503 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,504 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,504 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,505 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,506 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,507 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,507 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,510 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,511 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,511 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,512 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,513 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,513 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,519 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,519 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,520 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,520 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,521 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,524 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,533 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,533 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,534 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,535 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,536 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,537 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,587 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,587 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,591 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,592 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,592 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:38,593 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:38,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 07:05:38 BoogieIcfgContainer [2019-01-13 07:05:38,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 07:05:38,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 07:05:38,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 07:05:38,625 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 07:05:38,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 07:05:36" (3/4) ... [2019-01-13 07:05:38,632 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-13 07:05:38,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 07:05:38,633 INFO L168 Benchmark]: Toolchain (without parser) took 6188.28 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 255.9 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -273.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 07:05:38,635 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 07:05:38,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1932.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -117.3 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:38,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 220.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:38,638 INFO L168 Benchmark]: Boogie Preprocessor took 135.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 07:05:38,639 INFO L168 Benchmark]: RCFGBuilder took 1671.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.8 MB in the end (delta: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:38,640 INFO L168 Benchmark]: TraceAbstraction took 2215.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 97.5 MB). Free memory was 973.8 MB in the beginning and 1.2 GB in the end (delta: -245.4 MB). Peak memory consumption was 187.4 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:38,642 INFO L168 Benchmark]: Witness Printer took 7.04 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 07:05:38,649 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1932.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -117.3 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 220.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 135.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1671.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.8 MB in the end (delta: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2215.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 97.5 MB). Free memory was 973.8 MB in the beginning and 1.2 GB in the end (delta: -245.4 MB). Peak memory consumption was 187.4 MB. Max. memory is 11.5 GB. * Witness Printer took 7.04 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4280]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4170. Possible FailurePath: [L3633] static int major ; [L3634] static int index ; [L3959-L3960] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4158-L4159] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4160-L4163] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4164-L4165] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4187] struct virtio_device_id const __mod_virtio_device_table ; [L4192] int LDV_IN_INTERRUPT ; [L4333] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4195] struct block_device *var_group1 ; [L4196] fmode_t var_virtblk_ioctl_5_p1 ; [L4197] unsigned int var_virtblk_ioctl_5_p2 ; [L4198] unsigned long var_virtblk_ioctl_5_p3 ; [L4199] struct hd_geometry *var_group2 ; [L4200] int tmp ; [L4201] int tmp___0 ; [L4202] int tmp___1 ; [L4204] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4168] int tmp ; [L4170] CALL, EXPR register_blkdev(0U, "virtblk") [L4523] return __VERIFIER_nondet_int(); [L4170] major = register_blkdev(0U, "virtblk") [L4171] COND FALSE !(major < 0) [L4527] return __VERIFIER_nondet_int(); [L4175] tmp = register_virtio_driver(& virtio_blk) [L4176] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4207] tmp = init() [L4208] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4229] tmp___1 = __VERIFIER_nondet_int() [L4230] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4214] tmp___0 = __VERIFIER_nondet_int() [L4216] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L3897] struct gendisk *disk ; [L3898] struct virtio_blk *vblk ; [L3899] void *usr_data ; [L3900] char id_str[20U] ; [L3901] int err ; [L3902] int tmp ; [L3903] bool tmp___0 ; [L3904] int tmp___1 ; [L3905] int tmp___2 ; [L3907] EXPR bdev->bd_disk [L3907] disk = bdev->bd_disk [L3908] EXPR disk->private_data [L3908] vblk = (struct virtio_blk *)disk->private_data [L3909] COND TRUE cmd == 1447184708U [L3910] usr_data = (void *)data [L3864] struct virtio_blk *vblk ; [L3865] struct request *req ; [L3866] struct bio *bio ; [L3867] long tmp ; [L3868] long tmp___0 ; [L3869] long tmp___1 ; [L3870] long tmp___2 ; [L3871] int tmp___3 ; [L3873] EXPR disk->private_data [L3873] vblk = (struct virtio_blk *)disk->private_data [L3874] EXPR vblk->disk [L3874] EXPR (vblk->disk)->queue [L4561] return __VERIFIER_nondet_pointer(); [L4414] return (struct bio *)external_alloc(); [L3874] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4259] long tmp ; [L4292] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4261] tmp = ldv_is_err(ptr) [L4262] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L3875] tmp___0 = IS_ERR((void const *)bio) [L3876] COND FALSE !(tmp___0 != 0L) [L3881] EXPR vblk->disk [L3881] EXPR (vblk->disk)->queue [L4268] ldv_func_ret_type___3 ldv_func_res ; [L4269] struct request *tmp ; [L4561] return __VERIFIER_nondet_pointer(); [L4432] return (struct request *)external_alloc(); [L4271] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4272] ldv_func_res = tmp [L4336] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4338] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4342] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4343] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4274] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L3881] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4259] long tmp ; [L4292] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4261] tmp = ldv_is_err(ptr) [L4262] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L3882] tmp___2 = IS_ERR((void const *)req) [L3883] COND FALSE !(tmp___2 != 0L) [L3889] req->cmd_type = 7 [L3890] EXPR vblk->disk [L3890] EXPR (vblk->disk)->queue [L3890] EXPR vblk->disk [L4424] return __VERIFIER_nondet_int(); [L3890] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3891] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L3911] err = virtblk_get_id(disk, (char *)(& id_str)) [L3912] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L3920] return (err); [L3920] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4229] tmp___1 = __VERIFIER_nondet_int() [L4230] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4370] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] [L4280] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551624:18446744073709551628}, features={6:0}, id_table={-5:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. UNSAFE Result, 2.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 202 SDtfs, 88 SDslu, 258 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1841 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-0ed9222-m [2019-01-13 07:05:41,057 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 07:05:41,058 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 07:05:41,073 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 07:05:41,074 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 07:05:41,075 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 07:05:41,076 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 07:05:41,078 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 07:05:41,080 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 07:05:41,081 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 07:05:41,082 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 07:05:41,082 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 07:05:41,083 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 07:05:41,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 07:05:41,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 07:05:41,087 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 07:05:41,088 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 07:05:41,089 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 07:05:41,092 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 07:05:41,094 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 07:05:41,095 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 07:05:41,097 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 07:05:41,099 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 07:05:41,100 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 07:05:41,100 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 07:05:41,101 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 07:05:41,102 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 07:05:41,104 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 07:05:41,104 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 07:05:41,105 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 07:05:41,106 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 07:05:41,107 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 07:05:41,107 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 07:05:41,107 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 07:05:41,109 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 07:05:41,109 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 07:05:41,110 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-01-13 07:05:41,137 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 07:05:41,137 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 07:05:41,138 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 07:05:41,138 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 07:05:41,139 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 07:05:41,139 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 07:05:41,139 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 07:05:41,139 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-13 07:05:41,139 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 07:05:41,140 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-13 07:05:41,144 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-13 07:05:41,144 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-13 07:05:41,144 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-13 07:05:41,144 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 07:05:41,145 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-13 07:05:41,145 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 07:05:41,145 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 07:05:41,145 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 07:05:41,145 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 07:05:41,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 07:05:41,148 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 07:05:41,148 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 07:05:41,148 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-13 07:05:41,148 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-13 07:05:41,148 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 07:05:41,149 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-13 07:05:41,149 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-13 07:05:41,150 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-13 07:05:41,150 INFO L133 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5417a05becbb9d46edf6af50ad8bf51bbb8a1b7 [2019-01-13 07:05:41,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 07:05:41,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 07:05:41,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 07:05:41,219 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 07:05:41,219 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 07:05:41,220 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-commit-tester/m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-13 07:05:41,292 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c92a25646/7ad12bc0e8ae4ad5b3c48ddb0e94e379/FLAGf66e368de [2019-01-13 07:05:42,017 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 07:05:42,020 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-commit-tester/m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-13 07:05:42,054 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c92a25646/7ad12bc0e8ae4ad5b3c48ddb0e94e379/FLAGf66e368de [2019-01-13 07:05:42,109 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c92a25646/7ad12bc0e8ae4ad5b3c48ddb0e94e379 [2019-01-13 07:05:42,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 07:05:42,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-13 07:05:42,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 07:05:42,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 07:05:42,119 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 07:05:42,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 07:05:42" (1/1) ... [2019-01-13 07:05:42,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4bc97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:42, skipping insertion in model container [2019-01-13 07:05:42,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 07:05:42" (1/1) ... [2019-01-13 07:05:42,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 07:05:42,253 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 07:05:43,706 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 07:05:43,750 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 07:05:44,179 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 07:05:44,301 INFO L195 MainTranslator]: Completed translation [2019-01-13 07:05:44,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44 WrapperNode [2019-01-13 07:05:44,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 07:05:44,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-13 07:05:44,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-13 07:05:44,304 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-13 07:05:44,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... [2019-01-13 07:05:44,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... [2019-01-13 07:05:44,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-13 07:05:44,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 07:05:44,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 07:05:44,460 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 07:05:44,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... [2019-01-13 07:05:44,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... [2019-01-13 07:05:44,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... [2019-01-13 07:05:44,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... [2019-01-13 07:05:44,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... [2019-01-13 07:05:44,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... [2019-01-13 07:05:44,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... [2019-01-13 07:05:44,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 07:05:44,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 07:05:44,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 07:05:44,562 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 07:05:44,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-13 07:05:44,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-01-13 07:05:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-01-13 07:05:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-01-13 07:05:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 07:05:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-13 07:05:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-01-13 07:05:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-01-13 07:05:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 07:05:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-13 07:05:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-13 07:05:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-01-13 07:05:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-01-13 07:05:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 07:05:44,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 07:05:46,570 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 07:05:46,571 INFO L286 CfgBuilder]: Removed 99 assue(true) statements. [2019-01-13 07:05:46,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 07:05:46 BoogieIcfgContainer [2019-01-13 07:05:46,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 07:05:46,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 07:05:46,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 07:05:46,578 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 07:05:46,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 07:05:42" (1/3) ... [2019-01-13 07:05:46,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d0e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 07:05:46, skipping insertion in model container [2019-01-13 07:05:46,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 07:05:44" (2/3) ... [2019-01-13 07:05:46,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d0e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 07:05:46, skipping insertion in model container [2019-01-13 07:05:46,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 07:05:46" (3/3) ... [2019-01-13 07:05:46,583 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-13 07:05:46,593 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 07:05:46,601 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-13 07:05:46,619 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-13 07:05:46,652 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 07:05:46,653 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 07:05:46,653 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-13 07:05:46,653 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 07:05:46,654 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 07:05:46,654 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 07:05:46,654 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 07:05:46,655 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 07:05:46,655 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 07:05:46,672 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-01-13 07:05:46,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-13 07:05:46,678 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 07:05:46,679 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 07:05:46,681 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 07:05:46,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 07:05:46,687 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-01-13 07:05:46,692 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-13 07:05:46,693 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-13 07:05:46,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 07:05:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 07:05:46,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 07:05:46,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 07:05:46,885 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2019-01-13 07:05:46,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 07:05:46,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-13 07:05:46,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-13 07:05:46,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-13 07:05:46,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 07:05:46,914 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-01-13 07:05:47,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 07:05:47,042 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-01-13 07:05:47,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-13 07:05:47,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-01-13 07:05:47,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 07:05:47,060 INFO L225 Difference]: With dead ends: 211 [2019-01-13 07:05:47,060 INFO L226 Difference]: Without dead ends: 132 [2019-01-13 07:05:47,064 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 07:05:47,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-01-13 07:05:47,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-01-13 07:05:47,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-01-13 07:05:47,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-01-13 07:05:47,118 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-01-13 07:05:47,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 07:05:47,118 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-01-13 07:05:47,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-13 07:05:47,119 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-01-13 07:05:47,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-01-13 07:05:47,122 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 07:05:47,122 INFO L402 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, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 07:05:47,123 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 07:05:47,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 07:05:47,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-01-13 07:05:47,125 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-13 07:05:47,125 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-13 07:05:47,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 07:05:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 07:05:47,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 07:05:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-01-13 07:05:47,711 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-13 07:05:47,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 07:05:47,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 07:05:47,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 07:05:47,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 07:05:47,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 07:05:47,723 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 4 states. [2019-01-13 07:05:47,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 07:05:47,799 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-01-13 07:05:47,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-13 07:05:47,804 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-01-13 07:05:47,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 07:05:47,807 INFO L225 Difference]: With dead ends: 258 [2019-01-13 07:05:47,807 INFO L226 Difference]: Without dead ends: 132 [2019-01-13 07:05:47,811 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-13 07:05:47,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-01-13 07:05:47,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-01-13 07:05:47,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-01-13 07:05:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-01-13 07:05:47,847 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-01-13 07:05:47,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 07:05:47,847 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-01-13 07:05:47,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 07:05:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-01-13 07:05:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-01-13 07:05:47,850 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 07:05:47,851 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 07:05:47,851 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 07:05:47,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 07:05:47,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-01-13 07:05:47,853 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-13 07:05:47,853 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-13 07:05:47,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 07:05:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 07:05:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 07:05:52,768 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-13 07:05:52,897 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,904 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,905 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,905 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,912 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,912 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,913 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,913 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,917 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,918 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,925 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,925 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,927 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,928 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,930 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,930 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,931 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,931 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,935 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,936 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,939 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,939 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,940 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,940 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,941 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,941 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,946 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,947 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,948 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,948 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,949 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,951 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,952 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,953 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,954 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,958 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,959 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-13 07:05:52,963 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-13 07:05:52,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 07:05:52 BoogieIcfgContainer [2019-01-13 07:05:52,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 07:05:52,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 07:05:52,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 07:05:52,984 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 07:05:52,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 07:05:46" (3/4) ... [2019-01-13 07:05:52,990 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-13 07:05:52,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 07:05:52,992 INFO L168 Benchmark]: Toolchain (without parser) took 10878.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 940.5 MB in the beginning and 800.8 MB in the end (delta: 139.7 MB). Peak memory consumption was 267.6 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:52,996 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 07:05:52,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2187.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 940.5 MB in the beginning and 1.0 GB in the end (delta: -85.0 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:52,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 155.88 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:53,001 INFO L168 Benchmark]: Boogie Preprocessor took 101.97 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:53,002 INFO L168 Benchmark]: RCFGBuilder took 2010.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 944.2 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:53,004 INFO L168 Benchmark]: TraceAbstraction took 6409.39 ms. Allocated memory is still 1.2 GB. Free memory was 944.2 MB in the beginning and 800.8 MB in the end (delta: 143.4 MB). Peak memory consumption was 143.4 MB. Max. memory is 11.5 GB. [2019-01-13 07:05:53,006 INFO L168 Benchmark]: Witness Printer took 7.40 ms. Allocated memory is still 1.2 GB. Free memory is still 800.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 07:05:53,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 2187.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 940.5 MB in the beginning and 1.0 GB in the end (delta: -85.0 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 155.88 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 101.97 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2010.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 944.2 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6409.39 ms. Allocated memory is still 1.2 GB. Free memory was 944.2 MB in the beginning and 800.8 MB in the end (delta: 143.4 MB). Peak memory consumption was 143.4 MB. Max. memory is 11.5 GB. * Witness Printer took 7.40 ms. Allocated memory is still 1.2 GB. Free memory is still 800.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4280]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4170. Possible FailurePath: [L3633] static int major ; [L3634] static int index ; [L3959-L3960] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4158-L4159] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4160-L4163] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4164-L4165] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4187] struct virtio_device_id const __mod_virtio_device_table ; [L4192] int LDV_IN_INTERRUPT ; [L4333] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4195] struct block_device *var_group1 ; [L4196] fmode_t var_virtblk_ioctl_5_p1 ; [L4197] unsigned int var_virtblk_ioctl_5_p2 ; [L4198] unsigned long var_virtblk_ioctl_5_p3 ; [L4199] struct hd_geometry *var_group2 ; [L4200] int tmp ; [L4201] int tmp___0 ; [L4202] int tmp___1 ; [L4204] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4168] int tmp ; [L4170] CALL, EXPR register_blkdev(0U, "virtblk") [L4523] return __VERIFIER_nondet_int(); [L4170] major = register_blkdev(0U, "virtblk") [L4171] COND FALSE !(major < 0) [L4527] return __VERIFIER_nondet_int(); [L4175] tmp = register_virtio_driver(& virtio_blk) [L4176] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4207] tmp = init() [L4208] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4229] tmp___1 = __VERIFIER_nondet_int() [L4230] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4214] tmp___0 = __VERIFIER_nondet_int() [L4216] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L3897] struct gendisk *disk ; [L3898] struct virtio_blk *vblk ; [L3899] void *usr_data ; [L3900] char id_str[20U] ; [L3901] int err ; [L3902] int tmp ; [L3903] bool tmp___0 ; [L3904] int tmp___1 ; [L3905] int tmp___2 ; [L3907] EXPR bdev->bd_disk [L3907] disk = bdev->bd_disk [L3908] EXPR disk->private_data [L3908] vblk = (struct virtio_blk *)disk->private_data [L3909] COND TRUE cmd == 1447184708U [L3910] usr_data = (void *)data [L3864] struct virtio_blk *vblk ; [L3865] struct request *req ; [L3866] struct bio *bio ; [L3867] long tmp ; [L3868] long tmp___0 ; [L3869] long tmp___1 ; [L3870] long tmp___2 ; [L3871] int tmp___3 ; [L3873] EXPR disk->private_data [L3873] vblk = (struct virtio_blk *)disk->private_data [L3874] EXPR vblk->disk [L3874] EXPR (vblk->disk)->queue [L4561] return __VERIFIER_nondet_pointer(); [L4414] return (struct bio *)external_alloc(); [L3874] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4259] long tmp ; [L4292] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4261] tmp = ldv_is_err(ptr) [L4262] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L3875] tmp___0 = IS_ERR((void const *)bio) [L3876] COND FALSE !(tmp___0 != 0L) [L3881] EXPR vblk->disk [L3881] EXPR (vblk->disk)->queue [L4268] ldv_func_ret_type___3 ldv_func_res ; [L4269] struct request *tmp ; [L4561] return __VERIFIER_nondet_pointer(); [L4432] return (struct request *)external_alloc(); [L4271] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4272] ldv_func_res = tmp [L4336] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4338] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4342] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4343] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4274] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L3881] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4259] long tmp ; [L4292] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4261] tmp = ldv_is_err(ptr) [L4262] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L3882] tmp___2 = IS_ERR((void const *)req) [L3883] COND FALSE !(tmp___2 != 0L) [L3889] req->cmd_type = 7 [L3890] EXPR vblk->disk [L3890] EXPR (vblk->disk)->queue [L3890] EXPR vblk->disk [L4424] return __VERIFIER_nondet_int(); [L3890] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3891] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L3911] err = virtblk_get_id(disk, (char *)(& id_str)) [L3912] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L3920] return (err); [L3920] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4229] tmp___1 = __VERIFIER_nondet_int() [L4230] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4370] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] [L4280] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={67110320:0}, id_table={67110069:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={147:0}, virtio_blk={1205:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. UNSAFE Result, 6.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 202 SDtfs, 88 SDslu, 258 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1693 SizeOfPredicates, 3 NumberOfNonLiveVariables, 497 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...