./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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 d4e06acc8eacd70a3cd33c2659722f759867edfb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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 d4e06acc8eacd70a3cd33c2659722f759867edfb ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:56:14,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:56:14,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:56:14,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:56:14,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:56:14,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:56:14,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:56:14,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:56:14,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:56:14,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:56:14,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:56:14,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:56:14,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:56:14,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:56:14,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:56:14,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:56:14,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:56:14,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:56:14,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:56:14,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:56:14,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:56:14,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:56:14,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:56:14,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:56:14,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:56:14,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:56:14,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:56:14,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:56:14,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:56:14,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:56:14,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:56:14,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:56:14,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:56:14,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:56:14,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:56:14,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:56:14,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:56:14,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:56:14,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:56:14,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:56:14,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:56:14,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-19 22:56:14,858 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:56:14,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:56:14,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:56:14,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:56:14,860 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:56:14,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:56:14,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:56:14,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:56:14,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:56:14,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:56:14,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:56:14,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:56:14,861 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:56:14,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:56:14,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:56:14,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:56:14,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:56:14,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:56:14,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:56:14,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:56:14,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:56:14,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:56:14,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:56:14,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:56:14,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:56:14,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:56:14,863 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/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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 -> d4e06acc8eacd70a3cd33c2659722f759867edfb [2019-11-19 22:56:15,041 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:56:15,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:56:15,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:56:15,060 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:56:15,061 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:56:15,061 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 22:56:15,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data/ad8775929/5cf843663ac44530892d89086deb9c52/FLAG56a1ee172 [2019-11-19 22:56:15,752 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:56:15,753 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 22:56:15,784 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data/ad8775929/5cf843663ac44530892d89086deb9c52/FLAG56a1ee172 [2019-11-19 22:56:15,908 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data/ad8775929/5cf843663ac44530892d89086deb9c52 [2019-11-19 22:56:15,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:56:15,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:56:15,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:56:15,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:56:15,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:56:15,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:56:15" (1/1) ... [2019-11-19 22:56:15,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea643cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:15, skipping insertion in model container [2019-11-19 22:56:15,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:56:15" (1/1) ... [2019-11-19 22:56:15,925 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:56:16,007 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:56:17,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:56:17,040 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:56:17,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:56:17,441 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:56:17,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17 WrapperNode [2019-11-19 22:56:17,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:56:17,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:56:17,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:56:17,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:56:17,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... [2019-11-19 22:56:17,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... [2019-11-19 22:56:17,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:56:17,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:56:17,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:56:17,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:56:17,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... [2019-11-19 22:56:17,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... [2019-11-19 22:56:17,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... [2019-11-19 22:56:17,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... [2019-11-19 22:56:17,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... [2019-11-19 22:56:17,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... [2019-11-19 22:56:17,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... [2019-11-19 22:56:17,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:56:17,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:56:17,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:56:17,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:56:17,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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 [2019-11-19 22:56:17,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:56:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:56:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:56:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 22:56:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:56:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 22:56:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 22:56:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:56:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:56:18,568 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:56:18,569 INFO L285 CfgBuilder]: Removed 99 assume(true) statements. [2019-11-19 22:56:18,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:18 BoogieIcfgContainer [2019-11-19 22:56:18,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:56:18,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:56:18,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:56:18,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:56:18,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:56:15" (1/3) ... [2019-11-19 22:56:18,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b891879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:56:18, skipping insertion in model container [2019-11-19 22:56:18,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:17" (2/3) ... [2019-11-19 22:56:18,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b891879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:56:18, skipping insertion in model container [2019-11-19 22:56:18,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:18" (3/3) ... [2019-11-19 22:56:18,578 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 22:56:18,587 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:56:18,593 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 22:56:18,603 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 22:56:18,626 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:56:18,629 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:56:18,629 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:56:18,629 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:56:18,630 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:56:18,630 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:56:18,630 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:56:18,631 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:56:18,651 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-19 22:56:18,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 22:56:18,659 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:56:18,660 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:56:18,660 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:56:18,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:56:18,667 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-11-19 22:56:18,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:56:18,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074031555] [2019-11-19 22:56:18,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:56:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:56:18,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:56:18,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074031555] [2019-11-19 22:56:18,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:56:18,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:56:18,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766287631] [2019-11-19 22:56:18,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:56:18,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:56:18,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:56:18,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:56:18,962 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-11-19 22:56:19,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:56:19,035 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-11-19 22:56:19,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:56:19,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-19 22:56:19,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:56:19,047 INFO L225 Difference]: With dead ends: 211 [2019-11-19 22:56:19,047 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 22:56:19,050 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:56:19,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 22:56:19,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 22:56:19,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 22:56:19,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-11-19 22:56:19,092 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-11-19 22:56:19,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:56:19,092 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-11-19 22:56:19,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:56:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-11-19 22:56:19,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-19 22:56:19,095 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:56:19,095 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:56:19,096 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:56:19,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:56:19,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-11-19 22:56:19,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:56:19,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277843630] [2019-11-19 22:56:19,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:56:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:56:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:56:19,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277843630] [2019-11-19 22:56:19,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:56:19,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 22:56:19,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654212583] [2019-11-19 22:56:19,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:56:19,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:56:19,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:56:19,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:56:19,287 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 4 states. [2019-11-19 22:56:19,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:56:19,326 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-11-19 22:56:19,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:56:19,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-11-19 22:56:19,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:56:19,329 INFO L225 Difference]: With dead ends: 258 [2019-11-19 22:56:19,329 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 22:56:19,330 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:56:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 22:56:19,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 22:56:19,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 22:56:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-11-19 22:56:19,347 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-11-19 22:56:19,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:56:19,347 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-11-19 22:56:19,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:56:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-11-19 22:56:19,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-19 22:56:19,350 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:56:19,350 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:56:19,350 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:56:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:56:19,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-11-19 22:56:19,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:56:19,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876184685] [2019-11-19 22:56:19,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:56:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:56:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:56:19,691 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:56:19,691 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:56:19,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,791 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,792 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,796 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,805 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,806 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,807 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,807 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,808 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,812 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,813 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,818 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,819 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,827 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,828 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:19,828 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:19,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:56:19 BoogieIcfgContainer [2019-11-19 22:56:19,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:56:19,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:56:19,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:56:19,849 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:56:19,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:18" (3/4) ... [2019-11-19 22:56:19,857 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:56:19,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:56:19,873 INFO L168 Benchmark]: Toolchain (without parser) took 3961.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 851.7 MB in the end (delta: 93.0 MB). Peak memory consumption was 253.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:19,874 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:19,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1530.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -96.5 MB). Peak memory consumption was 78.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:19,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:19,875 INFO L168 Benchmark]: Boogie Preprocessor took 69.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:19,876 INFO L168 Benchmark]: RCFGBuilder took 952.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 956.3 MB in the end (delta: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:19,877 INFO L168 Benchmark]: TraceAbstraction took 1275.13 ms. Allocated memory is still 1.2 GB. Free memory was 956.3 MB in the beginning and 851.7 MB in the end (delta: 104.6 MB). Peak memory consumption was 104.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:19,877 INFO L168 Benchmark]: Witness Printer took 23.29 ms. Allocated memory is still 1.2 GB. Free memory is still 851.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:19,880 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1530.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -96.5 MB). Peak memory consumption was 78.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 106.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 952.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 956.3 MB in the end (delta: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1275.13 ms. Allocated memory is still 1.2 GB. Free memory was 956.3 MB in the beginning and 851.7 MB in the end (delta: 104.6 MB). Peak memory consumption was 104.6 MB. Max. memory is 11.5 GB. * Witness Printer took 23.29 ms. Allocated memory is still 1.2 GB. Free memory is still 851.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4281]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4171. Possible FailurePath: [L3634] static int major ; [L3635] static int index ; [L3960-L3961] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4159-L4160] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4161-L4164] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4165-L4166] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4188] struct virtio_device_id const __mod_virtio_device_table ; [L4193] int LDV_IN_INTERRUPT ; [L4334] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4196] struct block_device *var_group1 ; [L4197] fmode_t var_virtblk_ioctl_5_p1 ; [L4198] unsigned int var_virtblk_ioctl_5_p2 ; [L4199] unsigned long var_virtblk_ioctl_5_p3 ; [L4200] struct hd_geometry *var_group2 ; [L4201] int tmp ; [L4202] int tmp___0 ; [L4203] int tmp___1 ; [L4205] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4524] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4528] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4215] tmp___0 = __VERIFIER_nondet_int() [L4217] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3898] struct gendisk *disk ; [L3899] struct virtio_blk *vblk ; [L3900] void *usr_data ; [L3901] char id_str[20U] ; [L3902] int err ; [L3903] int tmp ; [L3904] bool tmp___0 ; [L3905] int tmp___1 ; [L3906] int tmp___2 ; [L3908] EXPR bdev->bd_disk [L3908] disk = bdev->bd_disk [L3909] EXPR disk->private_data [L3909] vblk = (struct virtio_blk *)disk->private_data [L3910] COND TRUE cmd == 1447184708U [L3911] usr_data = (void *)data [L3865] struct virtio_blk *vblk ; [L3866] struct request *req ; [L3867] struct bio *bio ; [L3868] long tmp ; [L3869] long tmp___0 ; [L3870] long tmp___1 ; [L3871] long tmp___2 ; [L3872] int tmp___3 ; [L3874] EXPR disk->private_data [L3874] vblk = (struct virtio_blk *)disk->private_data [L3875] EXPR vblk->disk [L3875] EXPR (vblk->disk)->queue [L4562] return __VERIFIER_nondet_pointer(); [L4415] return (struct bio *)external_alloc(); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3876] tmp___0 = IS_ERR((void const *)bio) [L3877] COND FALSE !(tmp___0 != 0L) [L3882] EXPR vblk->disk [L3882] EXPR (vblk->disk)->queue [L4269] ldv_func_ret_type___3 ldv_func_res ; [L4270] struct request *tmp ; [L4562] return __VERIFIER_nondet_pointer(); [L4433] return (struct request *)external_alloc(); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4343] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4344] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3882] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3883] tmp___2 = IS_ERR((void const *)req) [L3884] COND FALSE !(tmp___2 != 0L) [L3890] req->cmd_type = 7 [L3891] EXPR vblk->disk [L3891] EXPR (vblk->disk)->queue [L3891] EXPR vblk->disk [L4425] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3912] err = virtblk_get_id(disk, (char *)(& id_str)) [L3913] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551625}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 1.2s, 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, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1841 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-19 22:56:21,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:56:21,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:56:21,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:56:21,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:56:21,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:56:21,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:56:21,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:56:21,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:56:21,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:56:21,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:56:21,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:56:21,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:56:21,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:56:21,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:56:21,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:56:21,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:56:21,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:56:21,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:56:21,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:56:21,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:56:21,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:56:21,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:56:21,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:56:21,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:56:21,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:56:21,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:56:21,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:56:21,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:56:21,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:56:21,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:56:21,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:56:21,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:56:21,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:56:21,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:56:21,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:56:21,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:56:21,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:56:21,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:56:21,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:56:21,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:56:21,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-19 22:56:21,802 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:56:21,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:56:21,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:56:21,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:56:21,804 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:56:21,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:56:21,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:56:21,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:56:21,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:56:21,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:56:21,810 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 22:56:21,810 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 22:56:21,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:56:21,811 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:56:21,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:56:21,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:56:21,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:56:21,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:56:21,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:56:21,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:56:21,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:56:21,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:56:21,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:56:21,815 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 22:56:21,815 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 22:56:21,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:56:21,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:56:21,816 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-19 22:56:21,816 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/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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 -> d4e06acc8eacd70a3cd33c2659722f759867edfb [2019-11-19 22:56:22,083 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:56:22,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:56:22,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:56:22,100 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:56:22,100 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:56:22,101 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 22:56:22,168 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data/3777bf1af/8a16e59fbf384f7fac4bfc28513276c4/FLAGd20b69389 [2019-11-19 22:56:22,896 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:56:22,897 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 22:56:22,935 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data/3777bf1af/8a16e59fbf384f7fac4bfc28513276c4/FLAGd20b69389 [2019-11-19 22:56:23,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/bin/uautomizer/data/3777bf1af/8a16e59fbf384f7fac4bfc28513276c4 [2019-11-19 22:56:23,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:56:23,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:56:23,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:56:23,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:56:23,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:56:23,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:56:23" (1/1) ... [2019-11-19 22:56:23,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321d0b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:23, skipping insertion in model container [2019-11-19 22:56:23,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:56:23" (1/1) ... [2019-11-19 22:56:23,455 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:56:23,527 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:56:24,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:56:24,718 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:56:25,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:56:25,130 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:56:25,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25 WrapperNode [2019-11-19 22:56:25,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:56:25,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:56:25,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:56:25,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:56:25,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... [2019-11-19 22:56:25,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... [2019-11-19 22:56:25,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:56:25,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:56:25,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:56:25,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:56:25,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... [2019-11-19 22:56:25,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... [2019-11-19 22:56:25,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... [2019-11-19 22:56:25,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... [2019-11-19 22:56:25,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... [2019-11-19 22:56:25,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... [2019-11-19 22:56:25,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... [2019-11-19 22:56:25,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:56:25,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:56:25,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:56:25,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:56:25,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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 [2019-11-19 22:56:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-11-19 22:56:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-19 22:56:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-11-19 22:56:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:56:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 22:56:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-19 22:56:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-11-19 22:56:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:56:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 22:56:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 22:56:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-11-19 22:56:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-11-19 22:56:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:56:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:56:26,611 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:56:26,612 INFO L285 CfgBuilder]: Removed 99 assume(true) statements. [2019-11-19 22:56:26,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:26 BoogieIcfgContainer [2019-11-19 22:56:26,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:56:26,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:56:26,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:56:26,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:56:26,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:56:23" (1/3) ... [2019-11-19 22:56:26,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3512effb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:56:26, skipping insertion in model container [2019-11-19 22:56:26,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:25" (2/3) ... [2019-11-19 22:56:26,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3512effb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:56:26, skipping insertion in model container [2019-11-19 22:56:26,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:26" (3/3) ... [2019-11-19 22:56:26,619 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-19 22:56:26,629 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:56:26,636 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 22:56:26,646 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 22:56:26,668 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:56:26,668 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:56:26,668 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:56:26,669 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:56:26,669 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:56:26,669 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:56:26,669 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:56:26,669 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:56:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-19 22:56:26,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 22:56:26,689 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:56:26,690 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:56:26,690 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:56:26,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:56:26,694 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-11-19 22:56:26,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:56:26,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [256810970] [2019-11-19 22:56:26,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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 [2019-11-19 22:56:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:56:27,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:56:27,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:56:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:56:27,112 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:56:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:56:27,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [256810970] [2019-11-19 22:56:27,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:56:27,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 22:56:27,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560088821] [2019-11-19 22:56:27,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:56:27,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:56:27,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:56:27,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:56:27,138 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-11-19 22:56:27,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:56:27,192 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-11-19 22:56:27,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:56:27,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-19 22:56:27,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:56:27,204 INFO L225 Difference]: With dead ends: 211 [2019-11-19 22:56:27,205 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 22:56:27,208 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:56:27,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 22:56:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 22:56:27,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 22:56:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-11-19 22:56:27,251 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-11-19 22:56:27,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:56:27,251 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-11-19 22:56:27,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:56:27,251 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-11-19 22:56:27,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-19 22:56:27,254 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:56:27,254 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:56:27,457 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:56:27,458 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:56:27,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:56:27,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-11-19 22:56:27,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:56:27,460 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [821837868] [2019-11-19 22:56:27,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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 [2019-11-19 22:56:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:56:28,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:56:28,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:56:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:56:28,082 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:56:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:56:28,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [821837868] [2019-11-19 22:56:28,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:56:28,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-19 22:56:28,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38640935] [2019-11-19 22:56:28,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 22:56:28,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:56:28,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:56:28,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:56:28,123 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 6 states. [2019-11-19 22:56:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:56:28,170 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-11-19 22:56:28,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:56:28,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-11-19 22:56:28,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:56:28,173 INFO L225 Difference]: With dead ends: 258 [2019-11-19 22:56:28,173 INFO L226 Difference]: Without dead ends: 132 [2019-11-19 22:56:28,174 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:56:28,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-19 22:56:28,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-19 22:56:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-19 22:56:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-11-19 22:56:28,190 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-11-19 22:56:28,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:56:28,191 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-11-19 22:56:28,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 22:56:28,191 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-11-19 22:56:28,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-19 22:56:28,193 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:56:28,193 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:56:28,398 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:56:28,399 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:56:28,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:56:28,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-11-19 22:56:28,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:56:28,401 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1030149542] [2019-11-19 22:56:28,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66fc9883-48db-4f9a-9196-64e2fb1b3289/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 [2019-11-19 22:56:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:56:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:56:32,891 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-19 22:56:32,892 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:56:33,105 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:56:33,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,233 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,234 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,235 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,235 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,250 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,250 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,251 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,251 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,252 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,252 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,253 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,253 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-19 22:56:33,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-19 22:56:33,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:56:33 BoogieIcfgContainer [2019-11-19 22:56:33,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:56:33,289 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:56:33,289 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:56:33,289 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:56:33,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:26" (3/4) ... [2019-11-19 22:56:33,294 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:56:33,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:56:33,297 INFO L168 Benchmark]: Toolchain (without parser) took 9855.14 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 250.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -189.0 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:33,297 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:33,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1690.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -128.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:33,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.02 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:33,301 INFO L168 Benchmark]: Boogie Preprocessor took 114.62 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:33,302 INFO L168 Benchmark]: RCFGBuilder took 1231.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.9 MB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:33,309 INFO L168 Benchmark]: TraceAbstraction took 6674.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 67.6 MB). Free memory was 985.9 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:33,309 INFO L168 Benchmark]: Witness Printer took 5.08 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:33,315 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1690.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -128.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 134.02 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 114.62 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1231.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.9 MB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6674.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 67.6 MB). Free memory was 985.9 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 5.08 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4281]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4171. Possible FailurePath: [L3634] static int major ; [L3635] static int index ; [L3960-L3961] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4159-L4160] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4161-L4164] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4165-L4166] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4188] struct virtio_device_id const __mod_virtio_device_table ; [L4193] int LDV_IN_INTERRUPT ; [L4334] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4196] struct block_device *var_group1 ; [L4197] fmode_t var_virtblk_ioctl_5_p1 ; [L4198] unsigned int var_virtblk_ioctl_5_p2 ; [L4199] unsigned long var_virtblk_ioctl_5_p3 ; [L4200] struct hd_geometry *var_group2 ; [L4201] int tmp ; [L4202] int tmp___0 ; [L4203] int tmp___1 ; [L4205] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4524] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4528] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4215] tmp___0 = __VERIFIER_nondet_int() [L4217] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3898] struct gendisk *disk ; [L3899] struct virtio_blk *vblk ; [L3900] void *usr_data ; [L3901] char id_str[20U] ; [L3902] int err ; [L3903] int tmp ; [L3904] bool tmp___0 ; [L3905] int tmp___1 ; [L3906] int tmp___2 ; [L3908] EXPR bdev->bd_disk [L3908] disk = bdev->bd_disk [L3909] EXPR disk->private_data [L3909] vblk = (struct virtio_blk *)disk->private_data [L3910] COND TRUE cmd == 1447184708U [L3911] usr_data = (void *)data [L3865] struct virtio_blk *vblk ; [L3866] struct request *req ; [L3867] struct bio *bio ; [L3868] long tmp ; [L3869] long tmp___0 ; [L3870] long tmp___1 ; [L3871] long tmp___2 ; [L3872] int tmp___3 ; [L3874] EXPR disk->private_data [L3874] vblk = (struct virtio_blk *)disk->private_data [L3875] EXPR vblk->disk [L3875] EXPR (vblk->disk)->queue [L4562] return __VERIFIER_nondet_pointer(); [L4415] return (struct bio *)external_alloc(); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3876] tmp___0 = IS_ERR((void const *)bio) [L3877] COND FALSE !(tmp___0 != 0L) [L3882] EXPR vblk->disk [L3882] EXPR (vblk->disk)->queue [L4269] ldv_func_ret_type___3 ldv_func_res ; [L4270] struct request *tmp ; [L4562] return __VERIFIER_nondet_pointer(); [L4433] return (struct request *)external_alloc(); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4343] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4344] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3882] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3883] tmp___2 = IS_ERR((void const *)req) [L3884] COND FALSE !(tmp___2 != 0L) [L3890] req->cmd_type = 7 [L3891] EXPR vblk->disk [L3891] EXPR (vblk->disk)->queue [L3891] EXPR vblk->disk [L4425] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3912] err = virtblk_get_id(disk, (char *)(& id_str)) [L3913] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1993:0}, id_table={524425:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={839000907:0}, virtio_blk={1073742656:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 6.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 89 SDslu, 258 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3460 SizeOfPredicates, 4 NumberOfNonLiveVariables, 497 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...