./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 678e0110 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d4e06acc8eacd70a3cd33c2659722f759867edfb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d4e06acc8eacd70a3cd33c2659722f759867edfb ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 21:52:44,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:52:44,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:52:44,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:52:44,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:52:44,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:52:44,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:52:44,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:52:44,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:52:44,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:52:44,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:52:44,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:52:44,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:52:44,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:52:44,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:52:44,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:52:44,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:52:44,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:52:44,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:52:44,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:52:44,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:52:44,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:52:44,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:52:44,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:52:44,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:52:44,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:52:44,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:52:44,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:52:44,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:52:44,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:52:44,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:52:44,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:52:44,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:52:44,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:52:44,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:52:44,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:52:44,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:52:44,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:52:44,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:52:44,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:52:44,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:52:44,770 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-19 21:52:44,785 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:52:44,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:52:44,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:52:44,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:52:44,788 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:52:44,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:52:44,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:52:44,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:52:44,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:52:44,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:52:44,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:52:44,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:52:44,789 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:52:44,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:52:44,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:52:44,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:52:44,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:52:44,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:52:44,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:52:44,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:52:44,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:52:44,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:52:44,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:52:44,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:52:44,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:52:44,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 21:52:44,793 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4e06acc8eacd70a3cd33c2659722f759867edfb [2019-11-19 21:52:45,093 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:52:45,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:52:45,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:52:45,118 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:52:45,118 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:52:45,119 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 21:52:45,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a7648f4/d9dcca6236da40d9a54b359d49aab8a1/FLAG539e5cc1c [2019-11-19 21:52:45,874 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:52:45,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 21:52:45,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a7648f4/d9dcca6236da40d9a54b359d49aab8a1/FLAG539e5cc1c [2019-11-19 21:52:46,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a7648f4/d9dcca6236da40d9a54b359d49aab8a1 [2019-11-19 21:52:46,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:52:46,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:52:46,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:52:46,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:52:46,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:52:46,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:52:46" (1/1) ... [2019-11-19 21:52:46,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2a4692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:46, skipping insertion in model container [2019-11-19 21:52:46,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:52:46" (1/1) ... [2019-11-19 21:52:46,044 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:52:46,131 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:52:47,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:52:47,521 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:52:47,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:52:47,901 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:52:47,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47 WrapperNode [2019-11-19 21:52:47,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:52:47,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:52:47,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:52:47,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:52:47,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... [2019-11-19 21:52:47,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... [2019-11-19 21:52:48,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:52:48,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:52:48,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:52:48,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:52:48,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... [2019-11-19 21:52:48,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... [2019-11-19 21:52:48,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... [2019-11-19 21:52:48,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... [2019-11-19 21:52:48,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... [2019-11-19 21:52:48,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... [2019-11-19 21:52:48,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... [2019-11-19 21:52:48,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:52:48,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:52:48,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:52:48,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:52:48,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:52:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 21:52:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 21:52:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:52:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 21:52:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:52:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 21:52:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 21:52:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:52:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:52:49,424 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:52:49,425 INFO L285 CfgBuilder]: Removed 99 assume(true) statements. [2019-11-19 21:52:49,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:52:49 BoogieIcfgContainer [2019-11-19 21:52:49,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:52:49,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:52:49,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:52:49,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:52:49,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:52:46" (1/3) ... [2019-11-19 21:52:49,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62eb06ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:52:49, skipping insertion in model container [2019-11-19 21:52:49,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:47" (2/3) ... [2019-11-19 21:52:49,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62eb06ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:52:49, skipping insertion in model container [2019-11-19 21:52:49,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:52:49" (3/3) ... [2019-11-19 21:52:49,436 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 21:52:49,447 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:52:49,455 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 21:52:49,468 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 21:52:49,495 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:52:49,496 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:52:49,496 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:52:49,496 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:52:49,496 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:52:49,497 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:52:49,497 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:52:49,497 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:52:49,515 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-19 21:52:49,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 21:52:49,522 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:52:49,523 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:52:49,524 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:52:49,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:52:49,530 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-11-19 21:52:49,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:52:49,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099592412] [2019-11-19 21:52:49,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:52:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:52:49,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:52:49,957 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099592412] [2019-11-19 21:52:49,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:52:49,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 21:52:49,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031451277] [2019-11-19 21:52:49,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 21:52:49,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:52:49,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 21:52:49,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:52:49,985 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-11-19 21:52:50,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:52:50,079 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-11-19 21:52:50,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:52:50,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-19 21:52:50,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:52:50,100 INFO L225 Difference]: With dead ends: 211 [2019-11-19 21:52:50,100 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 21:52:50,105 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:52:50,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 21:52:50,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 21:52:50,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 21:52:50,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-11-19 21:52:50,189 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-11-19 21:52:50,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:52:50,191 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-11-19 21:52:50,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 21:52:50,191 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-11-19 21:52:50,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-19 21:52:50,194 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:52:50,195 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:52:50,195 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:52:50,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:52:50,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-11-19 21:52:50,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:52:50,196 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534596611] [2019-11-19 21:52:50,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:52:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:52:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 21:52:50,440 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534596611] [2019-11-19 21:52:50,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:52:50,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 21:52:50,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83170029] [2019-11-19 21:52:50,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 21:52:50,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:52:50,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 21:52:50,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 21:52:50,443 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 4 states. [2019-11-19 21:52:50,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:52:50,490 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-11-19 21:52:50,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 21:52:50,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-11-19 21:52:50,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:52:50,493 INFO L225 Difference]: With dead ends: 258 [2019-11-19 21:52:50,494 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 21:52:50,496 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 21:52:50,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 21:52:50,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 21:52:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 21:52:50,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-11-19 21:52:50,521 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-11-19 21:52:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:52:50,522 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-11-19 21:52:50,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 21:52:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-11-19 21:52:50,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-19 21:52:50,526 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:52:50,526 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:52:50,526 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:52:50,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:52:50,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-11-19 21:52:50,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:52:50,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95001410] [2019-11-19 21:52:50,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:52:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:52:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:52:50,873 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:52:50,874 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:52:50,988 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:50,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:50,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:50,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,018 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,018 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,033 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,034 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,034 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,036 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,036 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,037 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,037 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,038 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:52:51,038 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:52:51,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:52:51 BoogieIcfgContainer [2019-11-19 21:52:51,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:52:51,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:52:51,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:52:51,059 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:52:51,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:52:49" (3/4) ... [2019-11-19 21:52:51,064 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 21:52:51,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:52:51,071 INFO L168 Benchmark]: Toolchain (without parser) took 5040.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 956.1 MB in the beginning and 838.0 MB in the end (delta: 118.1 MB). Peak memory consumption was 259.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:52:51,072 INFO L168 Benchmark]: CDTParser took 0.19 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. [2019-11-19 21:52:51,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1874.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 956.1 MB in the beginning and 1.0 GB in the end (delta: -69.9 MB). Peak memory consumption was 83.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:52:51,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:52:51,074 INFO L168 Benchmark]: Boogie Preprocessor took 120.91 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. [2019-11-19 21:52:51,075 INFO L168 Benchmark]: RCFGBuilder took 1290.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 939.4 MB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:52:51,076 INFO L168 Benchmark]: TraceAbstraction took 1630.49 ms. Allocated memory is still 1.2 GB. Free memory was 939.4 MB in the beginning and 838.0 MB in the end (delta: 101.5 MB). Peak memory consumption was 101.5 MB. Max. memory is 11.5 GB. [2019-11-19 21:52:51,077 INFO L168 Benchmark]: Witness Printer took 5.43 ms. Allocated memory is still 1.2 GB. Free memory is still 838.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:52:51,081 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1874.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 956.1 MB in the beginning and 1.0 GB in the end (delta: -69.9 MB). Peak memory consumption was 83.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 112.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 120.91 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. * RCFGBuilder took 1290.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 939.4 MB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1630.49 ms. Allocated memory is still 1.2 GB. Free memory was 939.4 MB in the beginning and 838.0 MB in the end (delta: 101.5 MB). Peak memory consumption was 101.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.43 ms. Allocated memory is still 1.2 GB. Free memory is still 838.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device * 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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") [L4524] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4528] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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 [L4562] return __VERIFIER_nondet_pointer(); [L4415] return (struct bio *)external_alloc(); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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 ; [L4562] return __VERIFIER_nondet_pointer(); [L4433] return (struct request *)external_alloc(); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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 [L4425] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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={18446744073709551620:18446744073709551625}, 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, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 88 SDslu, 258 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1841 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-19 21:52:53,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:52:53,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:52:53,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:52:53,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:52:53,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:52:53,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:52:53,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:52:53,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:52:53,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:52:53,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:52:53,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:52:53,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:52:53,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:52:53,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:52:53,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:52:53,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:52:53,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:52:53,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:52:53,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:52:53,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:52:53,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:52:53,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:52:53,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:52:53,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:52:53,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:52:53,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:52:53,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:52:53,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:52:53,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:52:53,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:52:53,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:52:53,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:52:53,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:52:53,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:52:53,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:52:53,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:52:53,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:52:53,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:52:53,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:52:53,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:52:53,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-19 21:52:53,339 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:52:53,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:52:53,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:52:53,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:52:53,342 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:52:53,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:52:53,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:52:53,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:52:53,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:52:53,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:52:53,344 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 21:52:53,344 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 21:52:53,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:52:53,344 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:52:53,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:52:53,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:52:53,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:52:53,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:52:53,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:52:53,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:52:53,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:52:53,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:52:53,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:52:53,347 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 21:52:53,347 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 21:52:53,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:52:53,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 21:52:53,348 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-19 21:52:53,349 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4e06acc8eacd70a3cd33c2659722f759867edfb [2019-11-19 21:52:53,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:52:53,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:52:53,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:52:53,660 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:52:53,660 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:52:53,661 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 21:52:53,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d1f584b6/521b0f95855747c28e784754c9545b17/FLAGcfb749469 [2019-11-19 21:52:54,492 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:52:54,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 21:52:54,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d1f584b6/521b0f95855747c28e784754c9545b17/FLAGcfb749469 [2019-11-19 21:52:54,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d1f584b6/521b0f95855747c28e784754c9545b17 [2019-11-19 21:52:54,622 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:52:54,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:52:54,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:52:54,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:52:54,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:52:54,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:52:54" (1/1) ... [2019-11-19 21:52:54,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342bb2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:54, skipping insertion in model container [2019-11-19 21:52:54,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:52:54" (1/1) ... [2019-11-19 21:52:54,641 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:52:54,725 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:52:56,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:52:56,109 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:52:56,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:52:56,542 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:52:56,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56 WrapperNode [2019-11-19 21:52:56,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:52:56,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:52:56,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:52:56,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:52:56,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... [2019-11-19 21:52:56,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... [2019-11-19 21:52:56,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:52:56,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:52:56,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:52:56,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:52:56,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... [2019-11-19 21:52:56,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... [2019-11-19 21:52:56,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... [2019-11-19 21:52:56,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... [2019-11-19 21:52:56,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... [2019-11-19 21:52:56,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... [2019-11-19 21:52:56,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... [2019-11-19 21:52:56,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:52:56,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:52:56,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:52:56,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:52:56,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:52:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-11-19 21:52:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-19 21:52:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-11-19 21:52:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:52:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 21:52:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-19 21:52:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-11-19 21:52:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:52:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 21:52:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 21:52:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-11-19 21:52:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-11-19 21:52:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:52:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:52:58,184 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:52:58,184 INFO L285 CfgBuilder]: Removed 99 assume(true) statements. [2019-11-19 21:52:58,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:52:58 BoogieIcfgContainer [2019-11-19 21:52:58,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:52:58,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:52:58,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:52:58,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:52:58,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:52:54" (1/3) ... [2019-11-19 21:52:58,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b7efbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:52:58, skipping insertion in model container [2019-11-19 21:52:58,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:52:56" (2/3) ... [2019-11-19 21:52:58,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b7efbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:52:58, skipping insertion in model container [2019-11-19 21:52:58,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:52:58" (3/3) ... [2019-11-19 21:52:58,194 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 21:52:58,204 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:52:58,212 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 21:52:58,225 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 21:52:58,251 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:52:58,252 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:52:58,252 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:52:58,252 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:52:58,252 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:52:58,252 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:52:58,253 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:52:58,253 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:52:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-19 21:52:58,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 21:52:58,277 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:52:58,278 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:52:58,279 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:52:58,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:52:58,286 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-11-19 21:52:58,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:52:58,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2007402032] [2019-11-19 21:52:58,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:52:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:52:58,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 21:52:58,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:52:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:52:58,646 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:52:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:52:58,652 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2007402032] [2019-11-19 21:52:58,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:52:58,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 21:52:58,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854278012] [2019-11-19 21:52:58,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 21:52:58,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:52:58,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 21:52:58,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:52:58,679 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-11-19 21:52:58,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:52:58,748 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-11-19 21:52:58,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:52:58,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-19 21:52:58,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:52:58,763 INFO L225 Difference]: With dead ends: 211 [2019-11-19 21:52:58,764 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 21:52:58,767 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:52:58,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 21:52:58,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 21:52:58,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 21:52:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-11-19 21:52:58,822 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-11-19 21:52:58,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:52:58,823 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-11-19 21:52:58,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 21:52:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-11-19 21:52:58,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-19 21:52:58,825 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:52:58,825 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:52:59,030 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:52:59,031 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:52:59,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:52:59,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-11-19 21:52:59,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:52:59,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [917190803] [2019-11-19 21:52:59,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:52:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:52:59,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 21:52:59,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:52:59,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 21:52:59,711 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:52:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 21:52:59,753 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [917190803] [2019-11-19 21:52:59,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:52:59,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-19 21:52:59,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358209822] [2019-11-19 21:52:59,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 21:52:59,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:52:59,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 21:52:59,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-19 21:52:59,758 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 6 states. [2019-11-19 21:52:59,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:52:59,825 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-11-19 21:52:59,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 21:52:59,826 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-11-19 21:52:59,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:52:59,828 INFO L225 Difference]: With dead ends: 258 [2019-11-19 21:52:59,829 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 21:52:59,831 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-19 21:52:59,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 21:52:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 21:52:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 21:52:59,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-11-19 21:52:59,850 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-11-19 21:52:59,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:52:59,850 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-11-19 21:52:59,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 21:52:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-11-19 21:52:59,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-19 21:52:59,853 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:52:59,853 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:53:00,059 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:53:00,063 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:53:00,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:53:00,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-11-19 21:53:00,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:53:00,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1415792760] [2019-11-19 21:53:00,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:53:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:53:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:53:04,155 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-19 21:53:04,155 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:53:04,371 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:53:04,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,497 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,505 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 21:53:04,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 21:53:04,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:53:04 BoogieIcfgContainer [2019-11-19 21:53:04,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:53:04,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:53:04,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:53:04,557 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:53:04,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:52:58" (3/4) ... [2019-11-19 21:53:04,562 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 21:53:04,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:53:04,565 INFO L168 Benchmark]: Toolchain (without parser) took 9940.27 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 242.2 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:53:04,565 INFO L168 Benchmark]: CDTParser took 0.19 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. [2019-11-19 21:53:04,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1919.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 953.7 MB in the beginning and 1.0 GB in the end (delta: -73.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 11.5 GB. [2019-11-19 21:53:04,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 223.75 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. [2019-11-19 21:53:04,568 INFO L168 Benchmark]: Boogie Preprocessor took 133.88 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. [2019-11-19 21:53:04,568 INFO L168 Benchmark]: RCFGBuilder took 1282.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 941.8 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:53:04,569 INFO L168 Benchmark]: TraceAbstraction took 6370.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 92.8 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:53:04,570 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:53:04,574 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1919.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 953.7 MB in the beginning and 1.0 GB in the end (delta: -73.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 223.75 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 133.88 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 1282.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 941.8 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6370.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 92.8 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 5.10 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4281]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4171. Possible FailurePath: [L3634] static int major ; [L3635] static int index ; [L3960-L3961] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4159-L4160] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4161-L4164] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4165-L4166] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4188] struct virtio_device_id const __mod_virtio_device_table ; [L4193] int LDV_IN_INTERRUPT ; [L4334] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [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={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4524] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4528] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [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={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [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={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3898] struct gendisk *disk ; [L3899] struct virtio_blk *vblk ; [L3900] void *usr_data ; [L3901] char id_str[20U] ; [L3902] int err ; [L3903] int tmp ; [L3904] bool tmp___0 ; [L3905] int tmp___1 ; [L3906] int tmp___2 ; [L3908] EXPR bdev->bd_disk [L3908] disk = bdev->bd_disk [L3909] EXPR disk->private_data [L3909] vblk = (struct virtio_blk *)disk->private_data [L3910] COND TRUE cmd == 1447184708U [L3911] usr_data = (void *)data [L3865] struct virtio_blk *vblk ; [L3866] struct request *req ; [L3867] struct bio *bio ; [L3868] long tmp ; [L3869] long tmp___0 ; [L3870] long tmp___1 ; [L3871] long tmp___2 ; [L3872] int tmp___3 ; [L3874] EXPR disk->private_data [L3874] vblk = (struct virtio_blk *)disk->private_data [L3875] EXPR vblk->disk [L3875] EXPR (vblk->disk)->queue [L4562] return __VERIFIER_nondet_pointer(); [L4415] return (struct bio *)external_alloc(); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [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={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3876] tmp___0 = IS_ERR((void const *)bio) [L3877] COND FALSE !(tmp___0 != 0L) [L3882] EXPR vblk->disk [L3882] EXPR (vblk->disk)->queue [L4269] ldv_func_ret_type___3 ldv_func_res ; [L4270] struct request *tmp ; [L4562] return __VERIFIER_nondet_pointer(); [L4433] return (struct request *)external_alloc(); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [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={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [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={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [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={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3883] tmp___2 = IS_ERR((void const *)req) [L3884] COND FALSE !(tmp___2 != 0L) [L3890] req->cmd_type = 7 [L3891] EXPR vblk->disk [L3891] EXPR (vblk->disk)->queue [L3891] EXPR vblk->disk [L4425] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [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={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [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={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 6.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 89 SDslu, 258 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3460 SizeOfPredicates, 4 NumberOfNonLiveVariables, 497 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...