./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d5417a05becbb9d46edf6af50ad8bf51bbb8a1b7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d5417a05becbb9d46edf6af50ad8bf51bbb8a1b7 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:26,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:26,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:26,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:26,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:26,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:26,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:26,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:26,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:26,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:26,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:26,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:26,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:26,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:26,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:26,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:26,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:26,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:26,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:26,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:26,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:26,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:26,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:26,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:26,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:26,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:26,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:26,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:26,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:26,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:26,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:26,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:26,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:26,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:26,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:26,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:26,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:26,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:26,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:26,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:26,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:26,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-10-22 08:58:26,933 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:26,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:26,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:26,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:26,935 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:26,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:26,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:26,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:26,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:26,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:26,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:26,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:26,936 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:26,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:26,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:26,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:26,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:26,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:26,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:26,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:26,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:26,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:26,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:26,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:26,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:26,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:58:26,939 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5417a05becbb9d46edf6af50ad8bf51bbb8a1b7 [2019-10-22 08:58:26,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:26,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:26,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:26,990 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:26,991 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:26,991 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-10-22 08:58:27,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data/c55952c10/d5aacd3139394210b7392662b4b03e25/FLAGd93258c2b [2019-10-22 08:58:27,619 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:27,620 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-10-22 08:58:27,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data/c55952c10/d5aacd3139394210b7392662b4b03e25/FLAGd93258c2b [2019-10-22 08:58:28,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data/c55952c10/d5aacd3139394210b7392662b4b03e25 [2019-10-22 08:58:28,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:28,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:28,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:28,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:28,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:28,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658027cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28, skipping insertion in model container [2019-10-22 08:58:28,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,043 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:28,114 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:29,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:29,013 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:29,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:29,321 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:29,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29 WrapperNode [2019-10-22 08:58:29,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:29,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:29,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:29,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:29,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... [2019-10-22 08:58:29,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... [2019-10-22 08:58:29,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:29,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:29,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:29,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:29,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... [2019-10-22 08:58:29,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... [2019-10-22 08:58:29,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... [2019-10-22 08:58:29,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... [2019-10-22 08:58:29,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... [2019-10-22 08:58:29,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... [2019-10-22 08:58:29,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... [2019-10-22 08:58:29,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:29,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:29,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:29,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:29,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/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 [2019-10-22 08:58:29,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:58:29,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:29,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:29,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:29,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:29,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 08:58:29,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:58:29,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:30,295 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:30,295 INFO L284 CfgBuilder]: Removed 99 assume(true) statements. [2019-10-22 08:58:30,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:30 BoogieIcfgContainer [2019-10-22 08:58:30,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:30,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:30,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:30,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:30,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:28" (1/3) ... [2019-10-22 08:58:30,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f5f333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:30, skipping insertion in model container [2019-10-22 08:58:30,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:29" (2/3) ... [2019-10-22 08:58:30,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f5f333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:30, skipping insertion in model container [2019-10-22 08:58:30,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:30" (3/3) ... [2019-10-22 08:58:30,304 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-10-22 08:58:30,312 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:30,318 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 08:58:30,332 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 08:58:30,356 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:30,357 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:30,357 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:30,357 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:30,357 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:30,357 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:30,357 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:30,357 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:30,372 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-10-22 08:58:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:58:30,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:30,383 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:30,385 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:30,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:30,393 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-10-22 08:58:30,402 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:30,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077642848] [2019-10-22 08:58:30,402 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:30,402 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:30,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:30,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:30,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077642848] [2019-10-22 08:58:30,640 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:30,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:30,641 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218889703] [2019-10-22 08:58:30,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:30,645 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:30,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:30,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:30,660 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-10-22 08:58:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:30,729 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-10-22 08:58:30,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:30,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 08:58:30,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:30,741 INFO L225 Difference]: With dead ends: 211 [2019-10-22 08:58:30,741 INFO L226 Difference]: Without dead ends: 132 [2019-10-22 08:58:30,744 INFO L600 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 [2019-10-22 08:58:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-22 08:58:30,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-22 08:58:30,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-22 08:58:30,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-10-22 08:58:30,803 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-10-22 08:58:30,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:30,804 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-10-22 08:58:30,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:30,804 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-10-22 08:58:30,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 08:58:30,805 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:30,806 INFO L380 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] [2019-10-22 08:58:30,806 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:30,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:30,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-10-22 08:58:30,806 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:30,807 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555881246] [2019-10-22 08:58:30,807 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:30,807 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:30,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:58:30,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555881246] [2019-10-22 08:58:30,980 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:30,980 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:30,980 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352107933] [2019-10-22 08:58:30,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:30,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:30,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:30,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:30,982 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 4 states. [2019-10-22 08:58:31,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:31,033 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-10-22 08:58:31,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:31,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-10-22 08:58:31,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:31,035 INFO L225 Difference]: With dead ends: 258 [2019-10-22 08:58:31,035 INFO L226 Difference]: Without dead ends: 132 [2019-10-22 08:58:31,036 INFO L600 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 [2019-10-22 08:58:31,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-22 08:58:31,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-22 08:58:31,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-22 08:58:31,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-10-22 08:58:31,049 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-10-22 08:58:31,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:31,050 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-10-22 08:58:31,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:31,050 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-10-22 08:58:31,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 08:58:31,051 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:31,051 INFO L380 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] [2019-10-22 08:58:31,052 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:31,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-10-22 08:58:31,052 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:31,053 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168990855] [2019-10-22 08:58:31,053 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:31,053 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:31,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:31,576 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:31,576 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:58:31,638 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,639 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,640 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,640 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,641 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,641 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,642 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,642 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,643 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,643 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,643 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,644 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,644 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,645 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,645 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,646 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,646 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,646 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,647 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,647 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,648 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,648 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,648 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,653 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,653 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,653 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:31,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:31,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:31 BoogieIcfgContainer [2019-10-22 08:58:31,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:31,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:31,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:31,665 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:31,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:30" (3/4) ... [2019-10-22 08:58:31,668 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:58:31,669 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:31,671 INFO L168 Benchmark]: Toolchain (without parser) took 3640.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.2 MB in the beginning and 1.0 GB in the end (delta: -64.9 MB). Peak memory consumption was 79.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,671 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:31,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1291.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.2 MB in the beginning and 1.0 GB in the end (delta: -94.3 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,672 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.21 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,672 INFO L168 Benchmark]: Boogie Preprocessor took 77.66 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,673 INFO L168 Benchmark]: RCFGBuilder took 783.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 946.7 MB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,673 INFO L168 Benchmark]: TraceAbstraction took 1366.12 ms. Allocated memory is still 1.2 GB. Free memory was 946.7 MB in the beginning and 1.0 GB in the end (delta: -57.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:31,674 INFO L168 Benchmark]: Witness Printer took 4.36 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. [2019-10-22 08:58:31,676 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1291.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.2 MB in the beginning and 1.0 GB in the end (delta: -94.3 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 113.21 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.66 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 783.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 946.7 MB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1366.12 ms. Allocated memory is still 1.2 GB. Free memory was 946.7 MB in the beginning and 1.0 GB in the end (delta: -57.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 4.36 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. * 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!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4280]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4170. Possible FailurePath: [L3633] static int major ; [L3634] static int index ; [L3959-L3960] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4158-L4159] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4160-L4163] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4164-L4165] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4187] struct virtio_device_id const __mod_virtio_device_table ; [L4192] int LDV_IN_INTERRUPT ; [L4333] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4195] struct block_device *var_group1 ; [L4196] fmode_t var_virtblk_ioctl_5_p1 ; [L4197] unsigned int var_virtblk_ioctl_5_p2 ; [L4198] unsigned long var_virtblk_ioctl_5_p3 ; [L4199] struct hd_geometry *var_group2 ; [L4200] int tmp ; [L4201] int tmp___0 ; [L4202] int tmp___1 ; [L4204] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4168] int tmp ; [L4170] CALL, EXPR register_blkdev(0U, "virtblk") [L4523] return __VERIFIER_nondet_int(); [L4170] major = register_blkdev(0U, "virtblk") [L4171] COND FALSE !(major < 0) [L4527] return __VERIFIER_nondet_int(); [L4175] tmp = register_virtio_driver(& virtio_blk) [L4176] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4207] tmp = init() [L4208] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4229] tmp___1 = __VERIFIER_nondet_int() [L4230] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4214] tmp___0 = __VERIFIER_nondet_int() [L4216] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3897] struct gendisk *disk ; [L3898] struct virtio_blk *vblk ; [L3899] void *usr_data ; [L3900] char id_str[20U] ; [L3901] int err ; [L3902] int tmp ; [L3903] bool tmp___0 ; [L3904] int tmp___1 ; [L3905] int tmp___2 ; [L3907] EXPR bdev->bd_disk [L3907] disk = bdev->bd_disk [L3908] EXPR disk->private_data [L3908] vblk = (struct virtio_blk *)disk->private_data [L3909] COND TRUE cmd == 1447184708U [L3910] usr_data = (void *)data [L3864] struct virtio_blk *vblk ; [L3865] struct request *req ; [L3866] struct bio *bio ; [L3867] long tmp ; [L3868] long tmp___0 ; [L3869] long tmp___1 ; [L3870] long tmp___2 ; [L3871] int tmp___3 ; [L3873] EXPR disk->private_data [L3873] vblk = (struct virtio_blk *)disk->private_data [L3874] EXPR vblk->disk [L3874] EXPR (vblk->disk)->queue [L4561] return __VERIFIER_nondet_pointer(); [L4414] return (struct bio *)external_alloc(); [L3874] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4259] long tmp ; [L4292] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4261] tmp = ldv_is_err(ptr) [L4262] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3875] tmp___0 = IS_ERR((void const *)bio) [L3876] COND FALSE !(tmp___0 != 0L) [L3881] EXPR vblk->disk [L3881] EXPR (vblk->disk)->queue [L4268] ldv_func_ret_type___3 ldv_func_res ; [L4269] struct request *tmp ; [L4561] return __VERIFIER_nondet_pointer(); [L4432] return (struct request *)external_alloc(); [L4271] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4272] ldv_func_res = tmp [L4336] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4338] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4342] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4343] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4274] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3881] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4259] long tmp ; [L4292] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4261] tmp = ldv_is_err(ptr) [L4262] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3882] tmp___2 = IS_ERR((void const *)req) [L3883] COND FALSE !(tmp___2 != 0L) [L3889] req->cmd_type = 7 [L3890] EXPR vblk->disk [L3890] EXPR (vblk->disk)->queue [L3890] EXPR vblk->disk [L4424] return __VERIFIER_nondet_int(); [L3890] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3891] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3911] err = virtblk_get_id(disk, (char *)(& id_str)) [L3912] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3920] return (err); [L3920] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4229] tmp___1 = __VERIFIER_nondet_int() [L4230] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4370] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4280] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 1.3s, 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, 0.4s SatisfiabilityAnalysisTime, 0.1s 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-cad4683 [2019-10-22 08:58:33,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:33,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:33,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:33,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:33,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:33,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:33,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:33,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:33,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:33,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:33,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:33,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:33,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:33,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:33,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:33,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:33,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:33,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:33,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:33,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:33,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:33,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:33,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:33,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:33,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:33,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:33,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:33,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:33,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:33,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:33,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:33,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:33,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:33,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:33,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:33,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:33,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:33,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:33,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:33,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:33,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-10-22 08:58:33,628 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:33,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:33,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:33,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:33,629 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:33,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:33,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:33,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:33,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:33,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:33,630 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:58:33,631 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:58:33,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:33,631 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:33,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:33,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:33,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:33,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:33,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:33,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:33,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:33,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:33,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:33,633 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:58:33,633 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:58:33,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:33,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:58:33,634 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-10-22 08:58:33,634 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5417a05becbb9d46edf6af50ad8bf51bbb8a1b7 [2019-10-22 08:58:33,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:33,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:33,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:33,673 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:33,673 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:33,674 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-10-22 08:58:33,715 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data/af73d13da/921d487f58bc46739353cb7a24795f82/FLAG10c33532f [2019-10-22 08:58:34,227 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:34,227 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-10-22 08:58:34,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data/af73d13da/921d487f58bc46739353cb7a24795f82/FLAG10c33532f [2019-10-22 08:58:34,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/data/af73d13da/921d487f58bc46739353cb7a24795f82 [2019-10-22 08:58:34,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:34,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:34,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:34,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:34,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:34,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:34" (1/1) ... [2019-10-22 08:58:34,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15eb2e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:34, skipping insertion in model container [2019-10-22 08:58:34,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:34" (1/1) ... [2019-10-22 08:58:34,464 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:34,556 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:35,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:35,640 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:35,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:35,958 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:35,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35 WrapperNode [2019-10-22 08:58:35,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:35,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:35,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:35,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:35,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:36,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:36,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:36,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:36,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:36,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:36,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:36,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:36,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:36,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:36,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:36,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:36,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:36,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:36,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:36,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:36,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:36,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/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 [2019-10-22 08:58:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-10-22 08:58:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-10-22 08:58:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-10-22 08:58:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-10-22 08:58:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-10-22 08:58:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:58:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 08:58:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 08:58:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-10-22 08:58:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:37,187 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:37,187 INFO L284 CfgBuilder]: Removed 99 assume(true) statements. [2019-10-22 08:58:37,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:37 BoogieIcfgContainer [2019-10-22 08:58:37,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:37,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:37,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:37,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:37,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:34" (1/3) ... [2019-10-22 08:58:37,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0a56ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:37, skipping insertion in model container [2019-10-22 08:58:37,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (2/3) ... [2019-10-22 08:58:37,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0a56ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:37, skipping insertion in model container [2019-10-22 08:58:37,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:37" (3/3) ... [2019-10-22 08:58:37,195 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-10-22 08:58:37,207 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:37,215 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 08:58:37,224 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 08:58:37,245 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:37,245 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:37,246 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:37,246 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:37,246 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:37,246 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:37,246 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:37,246 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:37,257 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-10-22 08:58:37,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:58:37,262 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:37,263 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:37,265 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:37,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:37,270 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-10-22 08:58:37,280 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:58:37,280 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2085102585] [2019-10-22 08:58:37,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/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 [2019-10-22 08:58:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:37,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:37,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:37,646 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:58:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:37,652 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2085102585] [2019-10-22 08:58:37,653 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:37,653 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 08:58:37,653 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451049251] [2019-10-22 08:58:37,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:37,658 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:58:37,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:37,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:37,673 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-10-22 08:58:37,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:37,740 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-10-22 08:58:37,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:37,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 08:58:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:37,756 INFO L225 Difference]: With dead ends: 211 [2019-10-22 08:58:37,757 INFO L226 Difference]: Without dead ends: 132 [2019-10-22 08:58:37,760 INFO L600 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 [2019-10-22 08:58:37,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-22 08:58:37,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-22 08:58:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-22 08:58:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-10-22 08:58:37,809 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-10-22 08:58:37,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:37,809 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-10-22 08:58:37,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:37,809 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-10-22 08:58:37,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 08:58:37,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:37,813 INFO L380 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] [2019-10-22 08:58:38,014 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:58:38,014 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:38,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:38,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-10-22 08:58:38,015 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:58:38,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1067505561] [2019-10-22 08:58:38,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/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 [2019-10-22 08:58:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:38,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:58:38,506 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:58:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:58:38,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1067505561] [2019-10-22 08:58:38,529 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:38,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 08:58:38,530 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617350418] [2019-10-22 08:58:38,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:38,531 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:58:38,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:38,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:38,532 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 6 states. [2019-10-22 08:58:38,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:38,568 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-10-22 08:58:38,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:38,569 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-10-22 08:58:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:38,570 INFO L225 Difference]: With dead ends: 258 [2019-10-22 08:58:38,570 INFO L226 Difference]: Without dead ends: 132 [2019-10-22 08:58:38,571 INFO L600 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 [2019-10-22 08:58:38,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-22 08:58:38,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-22 08:58:38,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-22 08:58:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-10-22 08:58:38,583 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-10-22 08:58:38,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:38,583 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-10-22 08:58:38,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:38,583 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-10-22 08:58:38,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 08:58:38,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:38,585 INFO L380 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] [2019-10-22 08:58:38,785 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:58:38,786 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:38,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-10-22 08:58:38,787 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:58:38,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [968531446] [2019-10-22 08:58:38,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3375c26-d034-4b19-a3f9-8ea6d3ac1479/bin/uautomizer/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 [2019-10-22 08:58:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:41,784 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-10-22 08:58:41,785 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:58:41,985 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:58:42,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-10-22 08:58:42,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-10-22 08:58:42,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:42 BoogieIcfgContainer [2019-10-22 08:58:42,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:42,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:42,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:42,110 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:42,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:37" (3/4) ... [2019-10-22 08:58:42,116 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:58:42,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:42,118 INFO L168 Benchmark]: Toolchain (without parser) took 7672.68 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 256.4 MB). Free memory was 941.6 MB in the beginning and 1.2 GB in the end (delta: -221.4 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:42,118 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:42,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1512.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.0 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -142.3 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:42,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:42,119 INFO L168 Benchmark]: Boogie Preprocessor took 57.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:42,120 INFO L168 Benchmark]: RCFGBuilder took 1074.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.0 MB in the end (delta: 78.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:42,120 INFO L168 Benchmark]: TraceAbstraction took 4919.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.4 MB). Free memory was 987.0 MB in the beginning and 1.2 GB in the end (delta: -175.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:42,120 INFO L168 Benchmark]: Witness Printer took 6.45 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:42,123 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1512.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.0 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -142.3 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1074.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.0 MB in the end (delta: 78.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4919.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.4 MB). Free memory was 987.0 MB in the beginning and 1.2 GB in the end (delta: -175.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 6.45 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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: 4280]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4170. Possible FailurePath: [L3633] static int major ; [L3634] static int index ; [L3959-L3960] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4158-L4159] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4160-L4163] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4164-L4165] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4187] struct virtio_device_id const __mod_virtio_device_table ; [L4192] int LDV_IN_INTERRUPT ; [L4333] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4195] struct block_device *var_group1 ; [L4196] fmode_t var_virtblk_ioctl_5_p1 ; [L4197] unsigned int var_virtblk_ioctl_5_p2 ; [L4198] unsigned long var_virtblk_ioctl_5_p3 ; [L4199] struct hd_geometry *var_group2 ; [L4200] int tmp ; [L4201] int tmp___0 ; [L4202] int tmp___1 ; [L4204] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4168] int tmp ; [L4170] CALL, EXPR register_blkdev(0U, "virtblk") [L4523] return __VERIFIER_nondet_int(); [L4170] major = register_blkdev(0U, "virtblk") [L4171] COND FALSE !(major < 0) [L4527] return __VERIFIER_nondet_int(); [L4175] tmp = register_virtio_driver(& virtio_blk) [L4176] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4207] tmp = init() [L4208] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4229] tmp___1 = __VERIFIER_nondet_int() [L4230] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4214] tmp___0 = __VERIFIER_nondet_int() [L4216] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3897] struct gendisk *disk ; [L3898] struct virtio_blk *vblk ; [L3899] void *usr_data ; [L3900] char id_str[20U] ; [L3901] int err ; [L3902] int tmp ; [L3903] bool tmp___0 ; [L3904] int tmp___1 ; [L3905] int tmp___2 ; [L3907] EXPR bdev->bd_disk [L3907] disk = bdev->bd_disk [L3908] EXPR disk->private_data [L3908] vblk = (struct virtio_blk *)disk->private_data [L3909] COND TRUE cmd == 1447184708U [L3910] usr_data = (void *)data [L3864] struct virtio_blk *vblk ; [L3865] struct request *req ; [L3866] struct bio *bio ; [L3867] long tmp ; [L3868] long tmp___0 ; [L3869] long tmp___1 ; [L3870] long tmp___2 ; [L3871] int tmp___3 ; [L3873] EXPR disk->private_data [L3873] vblk = (struct virtio_blk *)disk->private_data [L3874] EXPR vblk->disk [L3874] EXPR (vblk->disk)->queue [L4561] return __VERIFIER_nondet_pointer(); [L4414] return (struct bio *)external_alloc(); [L3874] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4259] long tmp ; [L4292] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4261] tmp = ldv_is_err(ptr) [L4262] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3875] tmp___0 = IS_ERR((void const *)bio) [L3876] COND FALSE !(tmp___0 != 0L) [L3881] EXPR vblk->disk [L3881] EXPR (vblk->disk)->queue [L4268] ldv_func_ret_type___3 ldv_func_res ; [L4269] struct request *tmp ; [L4561] return __VERIFIER_nondet_pointer(); [L4432] return (struct request *)external_alloc(); [L4271] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4272] ldv_func_res = tmp [L4336] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4338] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4342] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4343] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4274] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3881] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4259] long tmp ; [L4292] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4261] tmp = ldv_is_err(ptr) [L4262] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3882] tmp___2 = IS_ERR((void const *)req) [L3883] COND FALSE !(tmp___2 != 0L) [L3889] req->cmd_type = 7 [L3890] EXPR vblk->disk [L3890] EXPR (vblk->disk)->queue [L3890] EXPR vblk->disk [L4424] return __VERIFIER_nondet_int(); [L3890] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3891] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3911] err = virtblk_get_id(disk, (char *)(& id_str)) [L3912] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3920] return (err); [L3920] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4229] tmp___1 = __VERIFIER_nondet_int() [L4230] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4370] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4280] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 4.8s, 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, 1.6s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3460 SizeOfPredicates, 4 NumberOfNonLiveVariables, 495 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...