./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/ldv-commit-tester/m0_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 d4e06acc8eacd70a3cd33c2659722f759867edfb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/ldv-commit-tester/m0_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 d4e06acc8eacd70a3cd33c2659722f759867edfb ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 19:27:41,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:27:41,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:27:41,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:27:41,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:27:41,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:27:41,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:27:41,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:27:41,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:27:41,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:27:41,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:27:41,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:27:41,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:27:41,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:27:41,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:27:41,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:27:41,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:27:41,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:27:41,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:27:41,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:27:41,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:27:41,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:27:41,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:27:41,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:27:41,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:27:41,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:27:41,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:27:41,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:27:41,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:27:41,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:27:41,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:27:41,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:27:41,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:27:41,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:27:41,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:27:41,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:27:41,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:27:41,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:27:41,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:27:41,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:27:41,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:27:41,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-19 19:27:41,776 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:27:41,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:27:41,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:27:41,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:27:41,779 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:27:41,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:27:41,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:27:41,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:27:41,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:27:41,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:27:41,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:27:41,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:27:41,783 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:27:41,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:27:41,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:27:41,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:27:41,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:27:41,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:27:41,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:27:41,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:27:41,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:27:41,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:27:41,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:27:41,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 19:27:41,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:27:41,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 19:27:41,787 INFO L138 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 -> d4e06acc8eacd70a3cd33c2659722f759867edfb [2019-11-19 19:27:42,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:27:42,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:27:42,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:27:42,105 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:27:42,106 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:27:42,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 19:27:42,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd83a878/fa1f0b6c835c465c81861fb67eaf1cff/FLAG5b30c5e5f [2019-11-19 19:27:42,906 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:27:42,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 19:27:42,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd83a878/fa1f0b6c835c465c81861fb67eaf1cff/FLAG5b30c5e5f [2019-11-19 19:27:42,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd83a878/fa1f0b6c835c465c81861fb67eaf1cff [2019-11-19 19:27:43,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:27:43,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:27:43,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:27:43,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:27:43,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:27:43,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:42" (1/1) ... [2019-11-19 19:27:43,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e62f6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:43, skipping insertion in model container [2019-11-19 19:27:43,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:42" (1/1) ... [2019-11-19 19:27:43,017 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:27:43,108 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:27:44,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:27:44,420 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:27:44,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:27:44,835 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:27:44,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44 WrapperNode [2019-11-19 19:27:44,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:27:44,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:27:44,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:27:44,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:27:44,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... [2019-11-19 19:27:44,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... [2019-11-19 19:27:44,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:27:44,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:27:44,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:27:44,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:27:44,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... [2019-11-19 19:27:44,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... [2019-11-19 19:27:44,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... [2019-11-19 19:27:44,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... [2019-11-19 19:27:45,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... [2019-11-19 19:27:45,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... [2019-11-19 19:27:45,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... [2019-11-19 19:27:45,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:27:45,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:27:45,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:27:45,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:27:45,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:27:45,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 19:27:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 19:27:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 19:27:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 19:27:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 19:27:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 19:27:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 19:27:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:27:45,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:27:46,048 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:27:46,049 INFO L285 CfgBuilder]: Removed 99 assume(true) statements. [2019-11-19 19:27:46,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:46 BoogieIcfgContainer [2019-11-19 19:27:46,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:27:46,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:27:46,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:27:46,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:27:46,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:27:42" (1/3) ... [2019-11-19 19:27:46,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5372a8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:46, skipping insertion in model container [2019-11-19 19:27:46,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:44" (2/3) ... [2019-11-19 19:27:46,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5372a8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:46, skipping insertion in model container [2019-11-19 19:27:46,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:46" (3/3) ... [2019-11-19 19:27:46,064 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 19:27:46,075 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:27:46,086 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 19:27:46,097 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 19:27:46,124 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:27:46,125 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:27:46,125 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:27:46,125 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:27:46,125 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:27:46,125 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:27:46,126 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:27:46,126 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:27:46,145 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-19 19:27:46,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 19:27:46,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:27:46,153 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:27:46,154 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:27:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:27:46,160 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-11-19 19:27:46,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:27:46,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607787438] [2019-11-19 19:27:46,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:27:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:27:46,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:27:46,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607787438] [2019-11-19 19:27:46,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:27:46,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 19:27:46,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510974128] [2019-11-19 19:27:46,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 19:27:46,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:27:46,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 19:27:46,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:27:46,539 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-11-19 19:27:46,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:27:46,618 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-11-19 19:27:46,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 19:27:46,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-19 19:27:46,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:27:46,635 INFO L225 Difference]: With dead ends: 211 [2019-11-19 19:27:46,635 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 19:27:46,639 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:27:46,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 19:27:46,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 19:27:46,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 19:27:46,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-11-19 19:27:46,703 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-11-19 19:27:46,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:27:46,704 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-11-19 19:27:46,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 19:27:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-11-19 19:27:46,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-19 19:27:46,706 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:27:46,706 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:27:46,707 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:27:46,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:27:46,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-11-19 19:27:46,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:27:46,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212935906] [2019-11-19 19:27:46,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:27:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:27:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 19:27:46,904 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212935906] [2019-11-19 19:27:46,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:27:46,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 19:27:46,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337076559] [2019-11-19 19:27:46,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:27:46,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:27:46,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:27:46,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:27:46,907 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 4 states. [2019-11-19 19:27:46,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:27:46,962 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-11-19 19:27:46,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 19:27:46,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-11-19 19:27:46,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:27:46,964 INFO L225 Difference]: With dead ends: 258 [2019-11-19 19:27:46,964 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 19:27:46,966 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 19:27:46,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 19:27:46,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 19:27:46,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 19:27:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-11-19 19:27:46,982 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-11-19 19:27:46,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:27:46,982 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-11-19 19:27:46,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:27:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-11-19 19:27:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-19 19:27:46,984 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:27:46,985 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:27:46,985 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:27:46,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:27:46,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-11-19 19:27:46,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:27:46,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33507682] [2019-11-19 19:27:46,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:27:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:27:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:27:47,772 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:27:47,772 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 19:27:47,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,909 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,910 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,910 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,916 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,918 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,918 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,929 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,931 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,934 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,943 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:27:47,943 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:27:47,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:27:47 BoogieIcfgContainer [2019-11-19 19:27:47,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:27:47,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:27:47,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:27:47,963 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:27:47,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:46" (3/4) ... [2019-11-19 19:27:47,977 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 19:27:47,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:27:47,986 INFO L168 Benchmark]: Toolchain (without parser) took 4983.97 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 254.3 MB). Free memory was 952.2 MB in the beginning and 1.2 GB in the end (delta: -227.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-11-19 19:27:47,990 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:27:47,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1834.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -86.7 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. [2019-11-19 19:27:47,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:27:47,996 INFO L168 Benchmark]: Boogie Preprocessor took 110.40 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:27:47,998 INFO L168 Benchmark]: RCFGBuilder took 969.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 952.6 MB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. [2019-11-19 19:27:48,000 INFO L168 Benchmark]: TraceAbstraction took 1907.23 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 100.1 MB). Free memory was 952.6 MB in the beginning and 1.2 GB in the end (delta: -226.6 MB). Peak memory consumption was 157.2 MB. Max. memory is 11.5 GB. [2019-11-19 19:27:48,001 INFO L168 Benchmark]: Witness Printer took 21.09 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:27:48,006 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1834.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -86.7 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 135.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 110.40 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 969.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 952.6 MB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1907.23 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 100.1 MB). Free memory was 952.6 MB in the beginning and 1.2 GB in the end (delta: -226.6 MB). Peak memory consumption was 157.2 MB. Max. memory is 11.5 GB. * Witness Printer took 21.09 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4281]: 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 4171. Possible FailurePath: [L3634] static int major ; [L3635] static int index ; [L3960-L3961] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4159-L4160] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4161-L4164] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4165-L4166] 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}; [L4188] struct virtio_device_id const __mod_virtio_device_table ; [L4193] int LDV_IN_INTERRUPT ; [L4334] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4196] struct block_device *var_group1 ; [L4197] fmode_t var_virtblk_ioctl_5_p1 ; [L4198] unsigned int var_virtblk_ioctl_5_p2 ; [L4199] unsigned long var_virtblk_ioctl_5_p3 ; [L4200] struct hd_geometry *var_group2 ; [L4201] int tmp ; [L4202] int tmp___0 ; [L4203] int tmp___1 ; [L4205] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4524] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4528] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4215] tmp___0 = __VERIFIER_nondet_int() [L4217] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L3898] struct gendisk *disk ; [L3899] struct virtio_blk *vblk ; [L3900] void *usr_data ; [L3901] char id_str[20U] ; [L3902] int err ; [L3903] int tmp ; [L3904] bool tmp___0 ; [L3905] int tmp___1 ; [L3906] int tmp___2 ; [L3908] EXPR bdev->bd_disk [L3908] disk = bdev->bd_disk [L3909] EXPR disk->private_data [L3909] vblk = (struct virtio_blk *)disk->private_data [L3910] COND TRUE cmd == 1447184708U [L3911] usr_data = (void *)data [L3865] struct virtio_blk *vblk ; [L3866] struct request *req ; [L3867] struct bio *bio ; [L3868] long tmp ; [L3869] long tmp___0 ; [L3870] long tmp___1 ; [L3871] long tmp___2 ; [L3872] int tmp___3 ; [L3874] EXPR disk->private_data [L3874] vblk = (struct virtio_blk *)disk->private_data [L3875] EXPR vblk->disk [L3875] EXPR (vblk->disk)->queue [L4562] return __VERIFIER_nondet_pointer(); [L4415] return (struct bio *)external_alloc(); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L3876] tmp___0 = IS_ERR((void const *)bio) [L3877] COND FALSE !(tmp___0 != 0L) [L3882] EXPR vblk->disk [L3882] EXPR (vblk->disk)->queue [L4269] ldv_func_ret_type___3 ldv_func_res ; [L4270] struct request *tmp ; [L4562] return __VERIFIER_nondet_pointer(); [L4433] return (struct request *)external_alloc(); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4343] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4344] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L3882] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L3883] tmp___2 = IS_ERR((void const *)req) [L3884] COND FALSE !(tmp___2 != 0L) [L3890] req->cmd_type = 7 [L3891] EXPR vblk->disk [L3891] EXPR (vblk->disk)->queue [L3891] EXPR vblk->disk [L4425] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L3912] err = virtblk_get_id(disk, (char *)(& id_str)) [L3913] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={7:0}, id_table={4:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-9:0}, virtio_blk={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s 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, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-f6fb2bb [2019-11-19 19:27:50,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:27:50,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:27:50,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:27:50,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:27:50,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:27:50,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:27:50,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:27:50,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:27:50,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:27:50,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:27:50,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:27:50,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:27:50,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:27:50,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:27:50,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:27:50,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:27:50,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:27:50,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:27:50,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:27:50,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:27:50,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:27:50,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:27:50,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:27:50,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:27:50,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:27:50,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:27:50,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:27:50,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:27:50,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:27:50,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:27:50,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:27:50,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:27:50,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:27:50,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:27:50,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:27:50,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:27:50,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:27:50,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:27:50,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:27:50,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:27:50,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-19 19:27:50,253 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:27:50,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:27:50,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:27:50,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:27:50,255 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:27:50,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:27:50,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:27:50,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:27:50,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:27:50,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:27:50,259 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 19:27:50,260 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 19:27:50,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:27:50,260 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:27:50,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:27:50,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:27:50,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:27:50,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:27:50,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:27:50,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:27:50,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:27:50,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:27:50,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:27:50,263 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 19:27:50,264 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 19:27:50,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:27:50,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 19:27:50,264 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-19 19:27:50,265 INFO L138 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 -> d4e06acc8eacd70a3cd33c2659722f759867edfb [2019-11-19 19:27:50,621 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:27:50,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:27:50,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:27:50,645 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:27:50,645 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:27:50,647 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 19:27:50,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86dd758d4/c43ac36192ce487caeaee88dd6f65b25/FLAG510ec4575 [2019-11-19 19:27:51,549 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:27:51,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 19:27:51,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86dd758d4/c43ac36192ce487caeaee88dd6f65b25/FLAG510ec4575 [2019-11-19 19:27:51,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86dd758d4/c43ac36192ce487caeaee88dd6f65b25 [2019-11-19 19:27:51,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:27:51,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:27:51,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:27:51,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:27:51,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:27:51,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:51" (1/1) ... [2019-11-19 19:27:51,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6927df0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:51, skipping insertion in model container [2019-11-19 19:27:51,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:51" (1/1) ... [2019-11-19 19:27:51,668 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:27:51,751 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:27:53,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:27:53,052 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:27:53,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:27:53,500 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:27:53,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53 WrapperNode [2019-11-19 19:27:53,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:27:53,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:27:53,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:27:53,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:27:53,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (1/1) ... [2019-11-19 19:27:53,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (1/1) ... [2019-11-19 19:27:53,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:27:53,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:27:53,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:27:53,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:27:53,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (1/1) ... [2019-11-19 19:27:53,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (1/1) ... [2019-11-19 19:27:53,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (1/1) ... [2019-11-19 19:27:53,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (1/1) ... [2019-11-19 19:27:53,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (1/1) ... [2019-11-19 19:27:53,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (1/1) ... [2019-11-19 19:27:53,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (1/1) ... [2019-11-19 19:27:53,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:27:53,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:27:53,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:27:53,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:27:53,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (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 [2019-11-19 19:27:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-11-19 19:27:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-19 19:27:53,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-11-19 19:27:53,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 19:27:53,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 19:27:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-19 19:27:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-11-19 19:27:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 19:27:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 19:27:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 19:27:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-11-19 19:27:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-11-19 19:27:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:27:53,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:27:55,026 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:27:55,026 INFO L285 CfgBuilder]: Removed 99 assume(true) statements. [2019-11-19 19:27:55,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:55 BoogieIcfgContainer [2019-11-19 19:27:55,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:27:55,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:27:55,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:27:55,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:27:55,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:27:51" (1/3) ... [2019-11-19 19:27:55,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b97cacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:55, skipping insertion in model container [2019-11-19 19:27:55,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:53" (2/3) ... [2019-11-19 19:27:55,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b97cacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:55, skipping insertion in model container [2019-11-19 19:27:55,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:55" (3/3) ... [2019-11-19 19:27:55,036 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 19:27:55,046 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:27:55,055 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 19:27:55,070 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 19:27:55,106 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:27:55,106 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:27:55,106 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:27:55,106 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:27:55,106 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:27:55,107 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:27:55,107 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:27:55,107 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:27:55,127 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-19 19:27:55,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 19:27:55,134 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:27:55,135 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:27:55,136 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:27:55,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:27:55,144 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-11-19 19:27:55,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 19:27:55,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2120126573] [2019-11-19 19:27:55,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-19 19:27:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:27:55,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 19:27:55,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 19:27:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:27:55,545 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 19:27:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:27:55,551 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2120126573] [2019-11-19 19:27:55,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:27:55,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 19:27:55,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733378900] [2019-11-19 19:27:55,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 19:27:55,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 19:27:55,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 19:27:55,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:27:55,577 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-11-19 19:27:55,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:27:55,647 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-11-19 19:27:55,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 19:27:55,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-19 19:27:55,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:27:55,666 INFO L225 Difference]: With dead ends: 211 [2019-11-19 19:27:55,667 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 19:27:55,671 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 19:27:55,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 19:27:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 19:27:55,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 19:27:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-11-19 19:27:55,775 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-11-19 19:27:55,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:27:55,776 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-11-19 19:27:55,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 19:27:55,776 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-11-19 19:27:55,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-19 19:27:55,780 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:27:55,780 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:27:55,983 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 19:27:55,986 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:27:55,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:27:55,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-11-19 19:27:55,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 19:27:55,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2045576807] [2019-11-19 19:27:55,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-19 19:27:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:27:56,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 19:27:56,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 19:27:56,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 19:27:56,649 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 19:27:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 19:27:56,678 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2045576807] [2019-11-19 19:27:56,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:27:56,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-19 19:27:56,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964149074] [2019-11-19 19:27:56,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 19:27:56,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 19:27:56,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 19:27:56,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-19 19:27:56,681 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 6 states. [2019-11-19 19:27:56,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:27:56,720 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-11-19 19:27:56,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 19:27:56,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-11-19 19:27:56,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:27:56,722 INFO L225 Difference]: With dead ends: 258 [2019-11-19 19:27:56,723 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 19:27:56,724 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-19 19:27:56,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 19:27:56,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 19:27:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 19:27:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-11-19 19:27:56,751 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-11-19 19:27:56,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:27:56,752 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-11-19 19:27:56,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 19:27:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-11-19 19:27:56,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-19 19:27:56,756 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:27:56,756 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:27:56,957 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 19:27:56,958 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:27:56,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:27:56,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-11-19 19:27:56,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 19:27:56,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1213336756] [2019-11-19 19:27:56,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-19 19:27:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:28:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:28:00,472 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-19 19:28:00,472 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 19:28:00,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 19:28:00,793 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,805 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,819 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,819 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,820 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,820 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,827 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,828 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,829 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,829 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,833 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,834 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,834 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,837 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,838 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,838 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,840 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,842 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,848 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,848 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 19:28:00,854 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 19:28:00,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:28:00 BoogieIcfgContainer [2019-11-19 19:28:00,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:28:00,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:28:00,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:28:00,872 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:28:00,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:55" (3/4) ... [2019-11-19 19:28:00,877 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 19:28:00,877 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:28:00,880 INFO L168 Benchmark]: Toolchain (without parser) took 9229.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 239.6 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. [2019-11-19 19:28:00,880 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:28:00,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1851.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -74.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 11.5 GB. [2019-11-19 19:28:00,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 168.50 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:28:00,883 INFO L168 Benchmark]: Boogie Preprocessor took 77.29 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:28:00,884 INFO L168 Benchmark]: RCFGBuilder took 1278.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 939.2 MB in the end (delta: 71.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 11.5 GB. [2019-11-19 19:28:00,890 INFO L168 Benchmark]: TraceAbstraction took 5842.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 93.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:28:00,891 INFO L168 Benchmark]: Witness Printer took 5.12 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:28:00,901 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1851.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -74.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 168.50 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.29 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1278.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 939.2 MB in the end (delta: 71.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5842.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 93.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 5.12 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4281]: 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 4171. Possible FailurePath: [L3634] static int major ; [L3635] static int index ; [L3960-L3961] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4159-L4160] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4161-L4164] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4165-L4166] 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}; [L4188] struct virtio_device_id const __mod_virtio_device_table ; [L4193] int LDV_IN_INTERRUPT ; [L4334] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4196] struct block_device *var_group1 ; [L4197] fmode_t var_virtblk_ioctl_5_p1 ; [L4198] unsigned int var_virtblk_ioctl_5_p2 ; [L4199] unsigned long var_virtblk_ioctl_5_p3 ; [L4200] struct hd_geometry *var_group2 ; [L4201] int tmp ; [L4202] int tmp___0 ; [L4203] int tmp___1 ; [L4205] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4524] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4528] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4215] tmp___0 = __VERIFIER_nondet_int() [L4217] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3898] struct gendisk *disk ; [L3899] struct virtio_blk *vblk ; [L3900] void *usr_data ; [L3901] char id_str[20U] ; [L3902] int err ; [L3903] int tmp ; [L3904] bool tmp___0 ; [L3905] int tmp___1 ; [L3906] int tmp___2 ; [L3908] EXPR bdev->bd_disk [L3908] disk = bdev->bd_disk [L3909] EXPR disk->private_data [L3909] vblk = (struct virtio_blk *)disk->private_data [L3910] COND TRUE cmd == 1447184708U [L3911] usr_data = (void *)data [L3865] struct virtio_blk *vblk ; [L3866] struct request *req ; [L3867] struct bio *bio ; [L3868] long tmp ; [L3869] long tmp___0 ; [L3870] long tmp___1 ; [L3871] long tmp___2 ; [L3872] int tmp___3 ; [L3874] EXPR disk->private_data [L3874] vblk = (struct virtio_blk *)disk->private_data [L3875] EXPR vblk->disk [L3875] EXPR (vblk->disk)->queue [L4562] return __VERIFIER_nondet_pointer(); [L4415] return (struct bio *)external_alloc(); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3876] tmp___0 = IS_ERR((void const *)bio) [L3877] COND FALSE !(tmp___0 != 0L) [L3882] EXPR vblk->disk [L3882] EXPR (vblk->disk)->queue [L4269] ldv_func_ret_type___3 ldv_func_res ; [L4270] struct request *tmp ; [L4562] return __VERIFIER_nondet_pointer(); [L4433] return (struct request *)external_alloc(); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4343] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4344] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3882] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3883] tmp___2 = IS_ERR((void const *)req) [L3884] COND FALSE !(tmp___2 != 0L) [L3890] req->cmd_type = 7 [L3891] EXPR vblk->disk [L3891] EXPR (vblk->disk)->queue [L3891] EXPR vblk->disk [L4425] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3912] err = virtblk_get_id(disk, (char *)(& id_str)) [L3913] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 5.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 89 SDslu, 258 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3460 SizeOfPredicates, 4 NumberOfNonLiveVariables, 495 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...