./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 30f4e4ab 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 4c93cb68d7efd5264db4877f0cef6da4a9a585eb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 4c93cb68d7efd5264db4877f0cef6da4a9a585eb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 01:28:04,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 01:28:04,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 01:28:04,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 01:28:04,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 01:28:04,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 01:28:04,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 01:28:04,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 01:28:04,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 01:28:04,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 01:28:04,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 01:28:04,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 01:28:04,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 01:28:04,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 01:28:04,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 01:28:04,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 01:28:04,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 01:28:04,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 01:28:04,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 01:28:04,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 01:28:04,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 01:28:04,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 01:28:04,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 01:28:04,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 01:28:04,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 01:28:04,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 01:28:04,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 01:28:04,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 01:28:04,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 01:28:04,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 01:28:04,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 01:28:04,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 01:28:04,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 01:28:04,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 01:28:04,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 01:28:04,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 01:28:04,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 01:28:04,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 01:28:04,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 01:28:04,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 01:28:04,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 01:28:04,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-28 01:28:04,983 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 01:28:04,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 01:28:04,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 01:28:04,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 01:28:04,987 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 01:28:04,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 01:28:04,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 01:28:04,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 01:28:04,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 01:28:04,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 01:28:04,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 01:28:04,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 01:28:04,990 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 01:28:04,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 01:28:04,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 01:28:04,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 01:28:04,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 01:28:04,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 01:28:04,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 01:28:04,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 01:28:04,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 01:28:04,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 01:28:04,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 01:28:04,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 01:28:04,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 01:28:04,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 01:28:04,994 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 -> 4c93cb68d7efd5264db4877f0cef6da4a9a585eb [2019-11-28 01:28:05,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 01:28:05,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 01:28:05,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 01:28:05,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 01:28:05,321 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 01:28:05,322 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 01:28:05,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013e31bf2/27d46d5f362048d8a3c358c1a7e015e1/FLAG73ffa17f8 [2019-11-28 01:28:06,238 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 01:28:06,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 01:28:06,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013e31bf2/27d46d5f362048d8a3c358c1a7e015e1/FLAG73ffa17f8 [2019-11-28 01:28:06,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013e31bf2/27d46d5f362048d8a3c358c1a7e015e1 [2019-11-28 01:28:06,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 01:28:06,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 01:28:06,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 01:28:06,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 01:28:06,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 01:28:06,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:28:06" (1/1) ... [2019-11-28 01:28:06,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464336c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:06, skipping insertion in model container [2019-11-28 01:28:06,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:28:06" (1/1) ... [2019-11-28 01:28:06,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 01:28:06,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 01:28:08,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 01:28:08,160 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 01:28:08,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 01:28:08,566 INFO L208 MainTranslator]: Completed translation [2019-11-28 01:28:08,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08 WrapperNode [2019-11-28 01:28:08,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 01:28:08,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 01:28:08,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 01:28:08,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 01:28:08,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (1/1) ... [2019-11-28 01:28:08,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (1/1) ... [2019-11-28 01:28:08,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 01:28:08,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 01:28:08,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 01:28:08,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 01:28:08,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (1/1) ... [2019-11-28 01:28:08,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (1/1) ... [2019-11-28 01:28:08,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (1/1) ... [2019-11-28 01:28:08,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (1/1) ... [2019-11-28 01:28:08,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (1/1) ... [2019-11-28 01:28:08,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (1/1) ... [2019-11-28 01:28:08,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (1/1) ... [2019-11-28 01:28:08,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 01:28:08,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 01:28:08,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 01:28:08,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 01:28:08,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (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 [2019-11-28 01:28:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 01:28:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 01:28:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 01:28:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 01:28:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 01:28:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 01:28:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-28 01:28:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 01:28:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 01:28:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 01:28:09,868 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 01:28:09,868 INFO L297 CfgBuilder]: Removed 103 assume(true) statements. [2019-11-28 01:28:09,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:28:09 BoogieIcfgContainer [2019-11-28 01:28:09,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 01:28:09,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 01:28:09,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 01:28:09,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 01:28:09,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:28:06" (1/3) ... [2019-11-28 01:28:09,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4993e8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:28:09, skipping insertion in model container [2019-11-28 01:28:09,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:08" (2/3) ... [2019-11-28 01:28:09,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4993e8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:28:09, skipping insertion in model container [2019-11-28 01:28:09,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:28:09" (3/3) ... [2019-11-28 01:28:09,881 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 01:28:09,893 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 01:28:09,901 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 01:28:09,915 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 01:28:09,944 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 01:28:09,945 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 01:28:09,945 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 01:28:09,945 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 01:28:09,945 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 01:28:09,946 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 01:28:09,946 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 01:28:09,946 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 01:28:09,965 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-11-28 01:28:09,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 01:28:09,972 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 01:28:09,973 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 01:28:09,974 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 01:28:09,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 01:28:09,981 INFO L82 PathProgramCache]: Analyzing trace with hash -653167126, now seen corresponding path program 1 times [2019-11-28 01:28:09,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 01:28:09,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402568487] [2019-11-28 01:28:09,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 01:28:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 01:28:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 01:28:10,338 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402568487] [2019-11-28 01:28:10,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 01:28:10,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 01:28:10,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893371592] [2019-11-28 01:28:10,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 01:28:10,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 01:28:10,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 01:28:10,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 01:28:10,366 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-11-28 01:28:10,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 01:28:10,443 INFO L93 Difference]: Finished difference Result 223 states and 289 transitions. [2019-11-28 01:28:10,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 01:28:10,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-28 01:28:10,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 01:28:10,466 INFO L225 Difference]: With dead ends: 223 [2019-11-28 01:28:10,466 INFO L226 Difference]: Without dead ends: 140 [2019-11-28 01:28:10,471 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 [2019-11-28 01:28:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-28 01:28:10,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-28 01:28:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 01:28:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2019-11-28 01:28:10,538 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 178 transitions. Word has length 9 [2019-11-28 01:28:10,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 01:28:10,539 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 178 transitions. [2019-11-28 01:28:10,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 01:28:10,539 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 178 transitions. [2019-11-28 01:28:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-28 01:28:10,542 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 01:28:10,542 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, 1] [2019-11-28 01:28:10,542 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 01:28:10,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 01:28:10,543 INFO L82 PathProgramCache]: Analyzing trace with hash -217429113, now seen corresponding path program 1 times [2019-11-28 01:28:10,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 01:28:10,543 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823477102] [2019-11-28 01:28:10,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 01:28:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 01:28:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 01:28:10,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823477102] [2019-11-28 01:28:10,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 01:28:10,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 01:28:10,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951874876] [2019-11-28 01:28:10,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 01:28:10,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 01:28:10,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 01:28:10,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 01:28:10,792 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand 4 states. [2019-11-28 01:28:10,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 01:28:10,861 INFO L93 Difference]: Finished difference Result 274 states and 349 transitions. [2019-11-28 01:28:10,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 01:28:10,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2019-11-28 01:28:10,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 01:28:10,867 INFO L225 Difference]: With dead ends: 274 [2019-11-28 01:28:10,868 INFO L226 Difference]: Without dead ends: 140 [2019-11-28 01:28:10,870 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 [2019-11-28 01:28:10,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-28 01:28:10,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-28 01:28:10,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 01:28:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2019-11-28 01:28:10,911 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 40 [2019-11-28 01:28:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 01:28:10,913 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2019-11-28 01:28:10,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 01:28:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2019-11-28 01:28:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-28 01:28:10,916 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 01:28:10,916 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, 1, 1] [2019-11-28 01:28:10,917 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 01:28:10,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 01:28:10,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1828149605, now seen corresponding path program 1 times [2019-11-28 01:28:10,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 01:28:10,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131725338] [2019-11-28 01:28:10,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 01:28:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 01:28:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 01:28:11,319 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 01:28:11,320 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 01:28:11,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,448 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,448 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,455 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,455 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,458 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,464 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,464 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:11,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:11,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:28:11 BoogieIcfgContainer [2019-11-28 01:28:11,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 01:28:11,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 01:28:11,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 01:28:11,494 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 01:28:11,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:28:09" (3/4) ... [2019-11-28 01:28:11,505 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 01:28:11,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 01:28:11,511 INFO L168 Benchmark]: Toolchain (without parser) took 4763.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.3 MB in the beginning and 836.4 MB in the end (delta: 111.9 MB). Peak memory consumption was 249.8 MB. Max. memory is 11.5 GB. [2019-11-28 01:28:11,512 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-28 01:28:11,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1816.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.3 MB in the beginning and 1.0 GB in the end (delta: -75.0 MB). Peak memory consumption was 75.4 MB. Max. memory is 11.5 GB. [2019-11-28 01:28:11,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.48 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 01:28:11,516 INFO L168 Benchmark]: Boogie Preprocessor took 75.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 01:28:11,517 INFO L168 Benchmark]: RCFGBuilder took 1069.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 937.7 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 11.5 GB. [2019-11-28 01:28:11,519 INFO L168 Benchmark]: TraceAbstraction took 1621.73 ms. Allocated memory is still 1.2 GB. Free memory was 937.7 MB in the beginning and 836.4 MB in the end (delta: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. [2019-11-28 01:28:11,520 INFO L168 Benchmark]: Witness Printer took 13.94 ms. Allocated memory is still 1.2 GB. Free memory is still 836.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 01:28:11,528 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 1816.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.3 MB in the beginning and 1.0 GB in the end (delta: -75.0 MB). Peak memory consumption was 75.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 157.48 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1069.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 937.7 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1621.73 ms. Allocated memory is still 1.2 GB. Free memory was 937.7 MB in the beginning and 836.4 MB in the end (delta: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. * Witness Printer took 13.94 ms. Allocated memory is still 1.2 GB. Free memory is still 836.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!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!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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 * 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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4517] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4521] 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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4215] tmp___0 = __VERIFIER_nondet_int() [L4217] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [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 [L3442] COND FALSE !(__VERIFIER_nondet_int()) [L3447] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4413] return ldv_malloc(sizeof(struct bio)); [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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [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 ; [L3442] COND FALSE !(__VERIFIER_nondet_int()) [L3447] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4429] return ldv_malloc(sizeof(struct request)); [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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [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 [L4423] 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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [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={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 2 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 214 SDtfs, 94 SDslu, 276 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=140occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 2009 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 0.1.24-30f4e4a [2019-11-28 01:28:13,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 01:28:13,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 01:28:13,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 01:28:13,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 01:28:13,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 01:28:13,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 01:28:13,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 01:28:13,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 01:28:13,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 01:28:13,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 01:28:13,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 01:28:13,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 01:28:13,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 01:28:13,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 01:28:13,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 01:28:13,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 01:28:13,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 01:28:13,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 01:28:13,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 01:28:13,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 01:28:13,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 01:28:13,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 01:28:13,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 01:28:13,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 01:28:13,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 01:28:13,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 01:28:13,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 01:28:13,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 01:28:13,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 01:28:13,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 01:28:13,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 01:28:13,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 01:28:13,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 01:28:13,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 01:28:13,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 01:28:13,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 01:28:13,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 01:28:13,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 01:28:13,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 01:28:13,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 01:28:13,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-28 01:28:13,762 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 01:28:13,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 01:28:13,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 01:28:13,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 01:28:13,764 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 01:28:13,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 01:28:13,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 01:28:13,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 01:28:13,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 01:28:13,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 01:28:13,765 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 01:28:13,766 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 01:28:13,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 01:28:13,766 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 01:28:13,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 01:28:13,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 01:28:13,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 01:28:13,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 01:28:13,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 01:28:13,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 01:28:13,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 01:28:13,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 01:28:13,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 01:28:13,768 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 01:28:13,768 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 01:28:13,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 01:28:13,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 01:28:13,769 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-28 01:28:13,769 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 -> 4c93cb68d7efd5264db4877f0cef6da4a9a585eb [2019-11-28 01:28:14,083 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 01:28:14,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 01:28:14,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 01:28:14,107 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 01:28:14,108 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 01:28:14,110 INFO L428 ainManager$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 [2019-11-28 01:28:14,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b24a6c54/98070c93180c4fee986edd9517a57ad9/FLAG2bac68735 [2019-11-28 01:28:14,953 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 01:28:14,956 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 [2019-11-28 01:28:14,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b24a6c54/98070c93180c4fee986edd9517a57ad9/FLAG2bac68735 [2019-11-28 01:28:15,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b24a6c54/98070c93180c4fee986edd9517a57ad9 [2019-11-28 01:28:15,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 01:28:15,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 01:28:15,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 01:28:15,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 01:28:15,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 01:28:15,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:28:15" (1/1) ... [2019-11-28 01:28:15,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3724516c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:15, skipping insertion in model container [2019-11-28 01:28:15,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:28:15" (1/1) ... [2019-11-28 01:28:15,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 01:28:15,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 01:28:16,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 01:28:16,580 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 01:28:16,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 01:28:17,042 INFO L208 MainTranslator]: Completed translation [2019-11-28 01:28:17,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17 WrapperNode [2019-11-28 01:28:17,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 01:28:17,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 01:28:17,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 01:28:17,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 01:28:17,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (1/1) ... [2019-11-28 01:28:17,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (1/1) ... [2019-11-28 01:28:17,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 01:28:17,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 01:28:17,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 01:28:17,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 01:28:17,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (1/1) ... [2019-11-28 01:28:17,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (1/1) ... [2019-11-28 01:28:17,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (1/1) ... [2019-11-28 01:28:17,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (1/1) ... [2019-11-28 01:28:17,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (1/1) ... [2019-11-28 01:28:17,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (1/1) ... [2019-11-28 01:28:17,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (1/1) ... [2019-11-28 01:28:17,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 01:28:17,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 01:28:17,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 01:28:17,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 01:28:17,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (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 [2019-11-28 01:28:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-11-28 01:28:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-28 01:28:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-11-28 01:28:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 01:28:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 01:28:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 01:28:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-28 01:28:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-11-28 01:28:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 01:28:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 01:28:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-28 01:28:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-11-28 01:28:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-11-28 01:28:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 01:28:17,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 01:28:18,870 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 01:28:18,871 INFO L297 CfgBuilder]: Removed 103 assume(true) statements. [2019-11-28 01:28:18,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:28:18 BoogieIcfgContainer [2019-11-28 01:28:18,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 01:28:18,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 01:28:18,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 01:28:18,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 01:28:18,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:28:15" (1/3) ... [2019-11-28 01:28:18,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700ad73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:28:18, skipping insertion in model container [2019-11-28 01:28:18,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:28:17" (2/3) ... [2019-11-28 01:28:18,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700ad73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:28:18, skipping insertion in model container [2019-11-28 01:28:18,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:28:18" (3/3) ... [2019-11-28 01:28:18,881 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 01:28:18,892 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 01:28:18,900 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 01:28:18,912 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 01:28:18,941 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 01:28:18,941 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 01:28:18,941 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 01:28:18,941 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 01:28:18,942 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 01:28:18,942 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 01:28:18,942 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 01:28:18,942 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 01:28:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-11-28 01:28:18,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 01:28:18,968 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 01:28:18,969 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 01:28:18,970 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 01:28:18,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 01:28:18,977 INFO L82 PathProgramCache]: Analyzing trace with hash -653167126, now seen corresponding path program 1 times [2019-11-28 01:28:18,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 01:28:18,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99303969] [2019-11-28 01:28:18,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 01:28:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 01:28:19,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 01:28:19,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 01:28:19,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 01:28:19,296 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 01:28:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 01:28:19,307 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99303969] [2019-11-28 01:28:19,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 01:28:19,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 01:28:19,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597981601] [2019-11-28 01:28:19,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 01:28:19,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 01:28:19,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 01:28:19,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 01:28:19,333 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-11-28 01:28:19,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 01:28:19,436 INFO L93 Difference]: Finished difference Result 223 states and 289 transitions. [2019-11-28 01:28:19,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 01:28:19,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-28 01:28:19,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 01:28:19,464 INFO L225 Difference]: With dead ends: 223 [2019-11-28 01:28:19,465 INFO L226 Difference]: Without dead ends: 140 [2019-11-28 01:28:19,469 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 [2019-11-28 01:28:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-28 01:28:19,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-28 01:28:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 01:28:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2019-11-28 01:28:19,572 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 178 transitions. Word has length 9 [2019-11-28 01:28:19,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 01:28:19,573 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 178 transitions. [2019-11-28 01:28:19,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 01:28:19,573 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 178 transitions. [2019-11-28 01:28:19,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-28 01:28:19,576 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 01:28:19,576 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, 1] [2019-11-28 01:28:19,800 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 01:28:19,800 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 01:28:19,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 01:28:19,801 INFO L82 PathProgramCache]: Analyzing trace with hash -217429113, now seen corresponding path program 1 times [2019-11-28 01:28:19,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 01:28:19,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785501072] [2019-11-28 01:28:19,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 01:28:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 01:28:20,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 01:28:20,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 01:28:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 01:28:20,154 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 01:28:20,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 01:28:20,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785501072] [2019-11-28 01:28:20,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 01:28:20,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-28 01:28:20,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629111592] [2019-11-28 01:28:20,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 01:28:20,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 01:28:20,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 01:28:20,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 01:28:20,221 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand 6 states. [2019-11-28 01:28:20,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 01:28:20,410 INFO L93 Difference]: Finished difference Result 274 states and 349 transitions. [2019-11-28 01:28:20,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 01:28:20,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-11-28 01:28:20,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 01:28:20,417 INFO L225 Difference]: With dead ends: 274 [2019-11-28 01:28:20,418 INFO L226 Difference]: Without dead ends: 140 [2019-11-28 01:28:20,422 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 01:28:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-28 01:28:20,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-28 01:28:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 01:28:20,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2019-11-28 01:28:20,455 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 40 [2019-11-28 01:28:20,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 01:28:20,457 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2019-11-28 01:28:20,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 01:28:20,457 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2019-11-28 01:28:20,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-28 01:28:20,460 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 01:28:20,461 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, 1, 1] [2019-11-28 01:28:20,674 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 01:28:20,675 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 01:28:20,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 01:28:20,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1828149605, now seen corresponding path program 1 times [2019-11-28 01:28:20,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 01:28:20,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725063293] [2019-11-28 01:28:20,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 01:28:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 01:28:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 01:28:23,088 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 01:28:23,088 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 01:28:23,303 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 01:28:23,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,421 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,431 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,431 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,432 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,432 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,432 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,448 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,448 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,455 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,460 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,464 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 01:28:23,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 01:28:23,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:28:23 BoogieIcfgContainer [2019-11-28 01:28:23,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 01:28:23,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 01:28:23,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 01:28:23,491 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 01:28:23,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:28:18" (3/4) ... [2019-11-28 01:28:23,497 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 01:28:23,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 01:28:23,501 INFO L168 Benchmark]: Toolchain (without parser) took 8464.18 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 249.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 11.5 GB. [2019-11-28 01:28:23,502 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 01:28:23,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2007.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -60.8 MB). Peak memory consumption was 96.6 MB. Max. memory is 11.5 GB. [2019-11-28 01:28:23,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 197.48 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 01:28:23,506 INFO L168 Benchmark]: Boogie Preprocessor took 128.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 01:28:23,507 INFO L168 Benchmark]: RCFGBuilder took 1498.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 930.3 MB in the end (delta: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. [2019-11-28 01:28:23,510 INFO L168 Benchmark]: TraceAbstraction took 4616.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 104.3 MB). Free memory was 930.3 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 01:28:23,516 INFO L168 Benchmark]: Witness Printer took 7.04 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. [2019-11-28 01:28:23,528 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 2007.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -60.8 MB). Peak memory consumption was 96.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 197.48 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 128.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1498.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 930.3 MB in the end (delta: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4616.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 104.3 MB). Free memory was 930.3 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 7.04 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!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!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 - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!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={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4517] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4521] 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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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 [L3442] COND FALSE !(__VERIFIER_nondet_int()) [L3447] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4413] return ldv_malloc(sizeof(struct bio)); [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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 ; [L3442] COND FALSE !(__VERIFIER_nondet_int()) [L3447] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4429] return ldv_malloc(sizeof(struct request)); [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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 [L4423] 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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [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={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 2 error locations. Result: UNSAFE, OverallTime: 4.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 214 SDtfs, 94 SDslu, 471 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred 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, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 3784 SizeOfPredicates, 4 NumberOfNonLiveVariables, 507 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...