./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 [2019-01-15 11:38:48,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-15 11:38:48,951 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-15 11:38:48,971 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-15 11:38:48,972 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-15 11:38:48,973 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-15 11:38:48,975 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-15 11:38:48,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-15 11:38:48,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-15 11:38:48,983 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-15 11:38:48,985 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-15 11:38:48,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-15 11:38:48,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-15 11:38:48,989 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-15 11:38:48,990 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-15 11:38:48,994 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-15 11:38:48,996 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-15 11:38:49,001 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-15 11:38:49,010 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-15 11:38:49,013 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-15 11:38:49,017 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-15 11:38:49,018 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-15 11:38:49,023 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-15 11:38:49,024 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-15 11:38:49,024 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-15 11:38:49,025 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-15 11:38:49,026 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-15 11:38:49,026 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-15 11:38:49,030 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-15 11:38:49,033 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-15 11:38:49,035 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-15 11:38:49,037 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-15 11:38:49,037 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-15 11:38:49,037 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-15 11:38:49,039 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-15 11:38:49,040 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-15 11:38:49,041 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-01-15 11:38:49,062 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-15 11:38:49,063 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-15 11:38:49,064 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-15 11:38:49,068 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-15 11:38:49,068 INFO L133 SettingsManager]: * Use SBE=true [2019-01-15 11:38:49,068 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-15 11:38:49,069 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-15 11:38:49,069 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-15 11:38:49,069 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-15 11:38:49,069 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-15 11:38:49,069 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-15 11:38:49,069 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-15 11:38:49,070 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-15 11:38:49,071 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-15 11:38:49,071 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-15 11:38:49,072 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-15 11:38:49,072 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-15 11:38:49,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-15 11:38:49,072 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-15 11:38:49,072 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-15 11:38:49,072 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-15 11:38:49,073 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-15 11:38:49,073 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-15 11:38:49,073 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-15 11:38:49,073 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-15 11:38:49,073 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 [2019-01-15 11:38:49,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-15 11:38:49,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-15 11:38:49,124 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-15 11:38:49,126 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-15 11:38:49,126 INFO L276 PluginConnector]: CDTParser initialized [2019-01-15 11:38:49,127 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-commit-tester/m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-15 11:38:49,187 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0bfed32/464a2d8461434901a0ca3bea55869638/FLAG22f08f190 [2019-01-15 11:38:49,974 INFO L307 CDTParser]: Found 1 translation units. [2019-01-15 11:38:49,975 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-commit-tester/m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-15 11:38:50,015 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0bfed32/464a2d8461434901a0ca3bea55869638/FLAG22f08f190 [2019-01-15 11:38:50,518 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0bfed32/464a2d8461434901a0ca3bea55869638 [2019-01-15 11:38:50,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-15 11:38:50,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-15 11:38:50,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-15 11:38:50,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-15 11:38:50,529 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-15 11:38:50,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.01 11:38:50" (1/1) ... [2019-01-15 11:38:50,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0c601b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:50, skipping insertion in model container [2019-01-15 11:38:50,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.01 11:38:50" (1/1) ... [2019-01-15 11:38:50,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-15 11:38:50,654 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-15 11:38:52,141 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-15 11:38:52,157 INFO L191 MainTranslator]: Completed pre-run [2019-01-15 11:38:52,470 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-15 11:38:52,587 INFO L195 MainTranslator]: Completed translation [2019-01-15 11:38:52,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52 WrapperNode [2019-01-15 11:38:52,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-15 11:38:52,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-15 11:38:52,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-15 11:38:52,590 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-15 11:38:52,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (1/1) ... [2019-01-15 11:38:52,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (1/1) ... [2019-01-15 11:38:52,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-15 11:38:52,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-15 11:38:52,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-15 11:38:52,785 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-15 11:38:52,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (1/1) ... [2019-01-15 11:38:52,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (1/1) ... [2019-01-15 11:38:52,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (1/1) ... [2019-01-15 11:38:52,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (1/1) ... [2019-01-15 11:38:52,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (1/1) ... [2019-01-15 11:38:52,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (1/1) ... [2019-01-15 11:38:52,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (1/1) ... [2019-01-15 11:38:52,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-15 11:38:52,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-15 11:38:52,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-15 11:38:52,927 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-15 11:38:52,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (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 [2019-01-15 11:38:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-15 11:38:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-15 11:38:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-15 11:38:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-15 11:38:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-15 11:38:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-15 11:38:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-15 11:38:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-15 11:38:53,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-15 11:38:54,535 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-15 11:38:54,536 INFO L286 CfgBuilder]: Removed 99 assue(true) statements. [2019-01-15 11:38:54,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.01 11:38:54 BoogieIcfgContainer [2019-01-15 11:38:54,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-15 11:38:54,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-15 11:38:54,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-15 11:38:54,543 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-15 11:38:54,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.01 11:38:50" (1/3) ... [2019-01-15 11:38:54,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bfa196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.01 11:38:54, skipping insertion in model container [2019-01-15 11:38:54,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:38:52" (2/3) ... [2019-01-15 11:38:54,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bfa196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.01 11:38:54, skipping insertion in model container [2019-01-15 11:38:54,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.01 11:38:54" (3/3) ... [2019-01-15 11:38:54,548 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-15 11:38:54,556 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-15 11:38:54,564 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-15 11:38:54,582 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-15 11:38:54,611 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-15 11:38:54,612 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-15 11:38:54,612 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-15 11:38:54,612 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-15 11:38:54,612 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-15 11:38:54,612 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-15 11:38:54,613 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-15 11:38:54,613 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-15 11:38:54,613 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-15 11:38:54,630 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-01-15 11:38:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-15 11:38:54,637 INFO L394 BasicCegarLoop]: Found error trace [2019-01-15 11:38:54,638 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-15 11:38:54,640 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-15 11:38:54,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-15 11:38:54,645 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-01-15 11:38:54,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-15 11:38:54,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-15 11:38:54,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-15 11:38:54,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-15 11:38:54,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-15 11:38:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-15 11:38:54,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-15 11:38:54,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-15 11:38:54,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-15 11:38:54,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-15 11:38:54,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-15 11:38:54,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-15 11:38:54,997 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-01-15 11:38:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-15 11:38:55,083 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-01-15 11:38:55,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-15 11:38:55,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-01-15 11:38:55,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-15 11:38:55,100 INFO L225 Difference]: With dead ends: 211 [2019-01-15 11:38:55,101 INFO L226 Difference]: Without dead ends: 132 [2019-01-15 11:38:55,104 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 [2019-01-15 11:38:55,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-01-15 11:38:55,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-01-15 11:38:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-01-15 11:38:55,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-01-15 11:38:55,161 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-01-15 11:38:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-15 11:38:55,162 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-01-15 11:38:55,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-15 11:38:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-01-15 11:38:55,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-01-15 11:38:55,164 INFO L394 BasicCegarLoop]: Found error trace [2019-01-15 11:38:55,165 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] [2019-01-15 11:38:55,165 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-15 11:38:55,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-15 11:38:55,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-01-15 11:38:55,166 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-15 11:38:55,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-15 11:38:55,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-15 11:38:55,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-15 11:38:55,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-15 11:38:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-15 11:38:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-01-15 11:38:55,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-15 11:38:55,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-15 11:38:55,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-15 11:38:55,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-15 11:38:55,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-15 11:38:55,501 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 4 states. [2019-01-15 11:38:55,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-15 11:38:55,610 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-01-15 11:38:55,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-15 11:38:55,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-01-15 11:38:55,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-15 11:38:55,615 INFO L225 Difference]: With dead ends: 258 [2019-01-15 11:38:55,618 INFO L226 Difference]: Without dead ends: 132 [2019-01-15 11:38:55,620 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-15 11:38:55,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-01-15 11:38:55,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-01-15 11:38:55,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-01-15 11:38:55,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-01-15 11:38:55,661 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-01-15 11:38:55,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-15 11:38:55,661 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-01-15 11:38:55,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-15 11:38:55,662 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-01-15 11:38:55,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-01-15 11:38:55,664 INFO L394 BasicCegarLoop]: Found error trace [2019-01-15 11:38:55,665 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] [2019-01-15 11:38:55,665 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-15 11:38:55,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-15 11:38:55,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-01-15 11:38:55,666 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-15 11:38:55,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-15 11:38:55,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-15 11:38:55,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-15 11:38:55,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-15 11:38:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-15 11:38:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-15 11:38:56,391 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-15 11:38:56,511 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,515 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,526 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,527 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,527 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,529 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,529 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,530 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,531 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,531 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,532 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,533 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,539 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,540 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,540 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,541 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,541 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,544 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,547 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,548 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,548 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,549 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,551 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,551 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,554 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,555 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,556 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,556 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,558 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,559 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,560 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,560 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,560 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,561 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,561 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,563 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,564 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,565 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:38:56,565 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:38:56,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.01 11:38:56 BoogieIcfgContainer [2019-01-15 11:38:56,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-15 11:38:56,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-15 11:38:56,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-15 11:38:56,586 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-15 11:38:56,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.01 11:38:54" (3/4) ... [2019-01-15 11:38:56,593 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-15 11:38:56,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-15 11:38:56,594 INFO L168 Benchmark]: Toolchain (without parser) took 6071.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 945.7 MB in the beginning and 775.3 MB in the end (delta: 170.4 MB). Peak memory consumption was 293.6 MB. Max. memory is 11.5 GB. [2019-01-15 11:38:56,597 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. [2019-01-15 11:38:56,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2063.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 945.7 MB in the beginning and 1.0 GB in the end (delta: -74.1 MB). Peak memory consumption was 69.6 MB. Max. memory is 11.5 GB. [2019-01-15 11:38:56,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.22 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. [2019-01-15 11:38:56,602 INFO L168 Benchmark]: Boogie Preprocessor took 138.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-15 11:38:56,603 INFO L168 Benchmark]: RCFGBuilder took 1614.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 943.9 MB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. [2019-01-15 11:38:56,604 INFO L168 Benchmark]: TraceAbstraction took 2046.22 ms. Allocated memory is still 1.2 GB. Free memory was 943.9 MB in the beginning and 775.3 MB in the end (delta: 168.6 MB). Peak memory consumption was 168.6 MB. Max. memory is 11.5 GB. [2019-01-15 11:38:56,606 INFO L168 Benchmark]: Witness Printer took 7.35 ms. Allocated memory is still 1.2 GB. Free memory is still 775.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-15 11:38:56,611 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 2063.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 945.7 MB in the beginning and 1.0 GB in the end (delta: -74.1 MB). Peak memory consumption was 69.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 194.22 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 138.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1614.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 943.9 MB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2046.22 ms. Allocated memory is still 1.2 GB. Free memory was 943.9 MB in the beginning and 775.3 MB in the end (delta: 168.6 MB). Peak memory consumption was 168.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.35 ms. Allocated memory is still 1.2 GB. Free memory is still 775.3 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!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 - 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!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!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 * 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, 1.9s 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, 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 [2019-01-15 11:38:59,063 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-15 11:38:59,064 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-15 11:38:59,081 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-15 11:38:59,082 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-15 11:38:59,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-15 11:38:59,087 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-15 11:38:59,089 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-15 11:38:59,091 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-15 11:38:59,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-15 11:38:59,094 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-15 11:38:59,095 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-15 11:38:59,096 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-15 11:38:59,097 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-15 11:38:59,100 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-15 11:38:59,102 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-15 11:38:59,103 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-15 11:38:59,112 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-15 11:38:59,117 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-15 11:38:59,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-15 11:38:59,123 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-15 11:38:59,127 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-15 11:38:59,131 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-15 11:38:59,131 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-15 11:38:59,132 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-15 11:38:59,134 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-15 11:38:59,135 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-15 11:38:59,136 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-15 11:38:59,139 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-15 11:38:59,141 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-15 11:38:59,141 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-15 11:38:59,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-15 11:38:59,144 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-15 11:38:59,144 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-15 11:38:59,145 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-15 11:38:59,146 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-15 11:38:59,146 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-01-15 11:38:59,173 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-15 11:38:59,173 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-15 11:38:59,176 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-15 11:38:59,176 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-15 11:38:59,176 INFO L133 SettingsManager]: * Use SBE=true [2019-01-15 11:38:59,177 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-15 11:38:59,177 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-15 11:38:59,178 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-15 11:38:59,178 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-15 11:38:59,178 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-15 11:38:59,178 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-15 11:38:59,178 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-15 11:38:59,178 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-15 11:38:59,179 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-15 11:38:59,179 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-15 11:38:59,179 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-15 11:38:59,179 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-15 11:38:59,179 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-15 11:38:59,179 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-15 11:38:59,181 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-15 11:38:59,181 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-15 11:38:59,181 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-15 11:38:59,182 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-15 11:38:59,182 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-15 11:38:59,182 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-15 11:38:59,182 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-15 11:38:59,182 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-15 11:38:59,182 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 [2019-01-15 11:38:59,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-15 11:38:59,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-15 11:38:59,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-15 11:38:59,260 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-15 11:38:59,261 INFO L276 PluginConnector]: CDTParser initialized [2019-01-15 11:38:59,261 INFO L418 ainManager$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 [2019-01-15 11:38:59,315 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea75c037/8b728eb43edd4bb58056051e3bff004a/FLAGc5f5e1e0a [2019-01-15 11:38:59,983 INFO L307 CDTParser]: Found 1 translation units. [2019-01-15 11:38:59,983 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 [2019-01-15 11:39:00,017 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea75c037/8b728eb43edd4bb58056051e3bff004a/FLAGc5f5e1e0a [2019-01-15 11:39:00,105 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea75c037/8b728eb43edd4bb58056051e3bff004a [2019-01-15 11:39:00,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-15 11:39:00,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-15 11:39:00,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-15 11:39:00,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-15 11:39:00,118 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-15 11:39:00,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.01 11:39:00" (1/1) ... [2019-01-15 11:39:00,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cef0fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:00, skipping insertion in model container [2019-01-15 11:39:00,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.01 11:39:00" (1/1) ... [2019-01-15 11:39:00,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-15 11:39:00,241 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-15 11:39:01,524 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-15 11:39:01,560 INFO L191 MainTranslator]: Completed pre-run [2019-01-15 11:39:01,850 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-15 11:39:01,985 INFO L195 MainTranslator]: Completed translation [2019-01-15 11:39:01,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01 WrapperNode [2019-01-15 11:39:01,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-15 11:39:01,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-15 11:39:01,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-15 11:39:01,990 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-15 11:39:02,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (1/1) ... [2019-01-15 11:39:02,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (1/1) ... [2019-01-15 11:39:02,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-15 11:39:02,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-15 11:39:02,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-15 11:39:02,171 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-15 11:39:02,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (1/1) ... [2019-01-15 11:39:02,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (1/1) ... [2019-01-15 11:39:02,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (1/1) ... [2019-01-15 11:39:02,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (1/1) ... [2019-01-15 11:39:02,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (1/1) ... [2019-01-15 11:39:02,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (1/1) ... [2019-01-15 11:39:02,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (1/1) ... [2019-01-15 11:39:02,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-15 11:39:02,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-15 11:39:02,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-15 11:39:02,295 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-15 11:39:02,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (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 [2019-01-15 11:39:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-01-15 11:39:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-01-15 11:39:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-01-15 11:39:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-15 11:39:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-15 11:39:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-01-15 11:39:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-01-15 11:39:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-15 11:39:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-15 11:39:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-15 11:39:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-01-15 11:39:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-01-15 11:39:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-15 11:39:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-15 11:39:04,683 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-15 11:39:04,683 INFO L286 CfgBuilder]: Removed 99 assue(true) statements. [2019-01-15 11:39:04,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.01 11:39:04 BoogieIcfgContainer [2019-01-15 11:39:04,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-15 11:39:04,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-15 11:39:04,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-15 11:39:04,691 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-15 11:39:04,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.01 11:39:00" (1/3) ... [2019-01-15 11:39:04,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692f8598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.01 11:39:04, skipping insertion in model container [2019-01-15 11:39:04,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.01 11:39:01" (2/3) ... [2019-01-15 11:39:04,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692f8598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.01 11:39:04, skipping insertion in model container [2019-01-15 11:39:04,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.01 11:39:04" (3/3) ... [2019-01-15 11:39:04,696 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_false-unreach-call_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-01-15 11:39:04,707 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-15 11:39:04,716 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-15 11:39:04,735 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-15 11:39:04,763 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-15 11:39:04,763 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-15 11:39:04,764 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-15 11:39:04,764 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-15 11:39:04,764 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-15 11:39:04,764 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-15 11:39:04,764 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-15 11:39:04,764 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-15 11:39:04,765 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-15 11:39:04,778 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-01-15 11:39:04,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-15 11:39:04,784 INFO L394 BasicCegarLoop]: Found error trace [2019-01-15 11:39:04,785 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-15 11:39:04,787 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-15 11:39:04,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-15 11:39:04,792 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-01-15 11:39:04,797 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-15 11:39:04,798 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 [2019-01-15 11:39:04,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-15 11:39:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-15 11:39:04,976 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-15 11:39:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-15 11:39:05,051 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-15 11:39:05,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-15 11:39:05,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-15 11:39:05,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-15 11:39:05,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-15 11:39:05,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-15 11:39:05,087 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-01-15 11:39:05,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-15 11:39:05,294 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-01-15 11:39:05,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-15 11:39:05,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-01-15 11:39:05,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-15 11:39:05,316 INFO L225 Difference]: With dead ends: 211 [2019-01-15 11:39:05,316 INFO L226 Difference]: Without dead ends: 132 [2019-01-15 11:39:05,322 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 [2019-01-15 11:39:05,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-01-15 11:39:05,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-01-15 11:39:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-01-15 11:39:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-01-15 11:39:05,409 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-01-15 11:39:05,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-15 11:39:05,411 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-01-15 11:39:05,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-15 11:39:05,412 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-01-15 11:39:05,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-01-15 11:39:05,417 INFO L394 BasicCegarLoop]: Found error trace [2019-01-15 11:39:05,417 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] [2019-01-15 11:39:05,417 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-15 11:39:05,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-15 11:39:05,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-01-15 11:39:05,421 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-15 11:39:05,421 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 [2019-01-15 11:39:05,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-15 11:39:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-15 11:39:05,977 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-15 11:39:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-01-15 11:39:06,093 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (3)] Exception during sending of exit command (exit): Broken pipe [2019-01-15 11:39:06,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-15 11:39:06,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-15 11:39:06,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-15 11:39:06,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-15 11:39:06,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-15 11:39:06,105 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 4 states. [2019-01-15 11:39:06,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-15 11:39:06,331 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-01-15 11:39:06,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-15 11:39:06,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-01-15 11:39:06,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-15 11:39:06,334 INFO L225 Difference]: With dead ends: 258 [2019-01-15 11:39:06,337 INFO L226 Difference]: Without dead ends: 132 [2019-01-15 11:39:06,339 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-15 11:39:06,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-01-15 11:39:06,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-01-15 11:39:06,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-01-15 11:39:06,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-01-15 11:39:06,371 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-01-15 11:39:06,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-15 11:39:06,372 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-01-15 11:39:06,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-15 11:39:06,373 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-01-15 11:39:06,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-01-15 11:39:06,375 INFO L394 BasicCegarLoop]: Found error trace [2019-01-15 11:39:06,375 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] [2019-01-15 11:39:06,376 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-15 11:39:06,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-15 11:39:06,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-01-15 11:39:06,378 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-15 11:39:06,378 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 [2019-01-15 11:39:06,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-15 11:39:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-15 11:39:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-15 11:39:11,370 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-15 11:39:11,494 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,495 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,497 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,497 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,499 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,499 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,501 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,501 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,502 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,503 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,504 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,504 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,506 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,507 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,508 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,508 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,510 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,510 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,511 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,512 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,513 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,514 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,515 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,515 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,516 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,517 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,518 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,519 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,520 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,520 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,522 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,522 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,523 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,523 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,526 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,526 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,528 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-01-15 11:39:11,528 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-01-15 11:39:11,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.01 11:39:11 BoogieIcfgContainer [2019-01-15 11:39:11,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-15 11:39:11,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-15 11:39:11,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-15 11:39:11,550 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-15 11:39:11,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.01 11:39:04" (3/4) ... [2019-01-15 11:39:11,556 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-15 11:39:11,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-15 11:39:11,557 INFO L168 Benchmark]: Toolchain (without parser) took 11447.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 940.6 MB in the beginning and 824.8 MB in the end (delta: 115.7 MB). Peak memory consumption was 271.4 MB. Max. memory is 11.5 GB. [2019-01-15 11:39:11,559 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. [2019-01-15 11:39:11,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1875.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -113.1 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. [2019-01-15 11:39:11,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 179.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-01-15 11:39:11,562 INFO L168 Benchmark]: Boogie Preprocessor took 125.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-15 11:39:11,563 INFO L168 Benchmark]: RCFGBuilder took 2391.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 965.8 MB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. [2019-01-15 11:39:11,564 INFO L168 Benchmark]: TraceAbstraction took 6862.35 ms. Allocated memory is still 1.2 GB. Free memory was 965.8 MB in the beginning and 824.8 MB in the end (delta: 141.0 MB). Peak memory consumption was 141.0 MB. Max. memory is 11.5 GB. [2019-01-15 11:39:11,565 INFO L168 Benchmark]: Witness Printer took 6.26 ms. Allocated memory is still 1.2 GB. Free memory is still 824.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-15 11:39:11,570 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 1875.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -113.1 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 179.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 125.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2391.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 965.8 MB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6862.35 ms. Allocated memory is still 1.2 GB. Free memory was 965.8 MB in the beginning and 824.8 MB in the end (delta: 141.0 MB). Peak memory consumption was 141.0 MB. Max. memory is 11.5 GB. * Witness Printer took 6.26 ms. Allocated memory is still 1.2 GB. Free memory is still 824.8 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!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!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 - 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!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={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, 6.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 202 SDtfs, 88 SDslu, 258 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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, 0.2s 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...