/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 12:22:21,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 12:22:21,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 12:22:21,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 12:22:21,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 12:22:21,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 12:22:21,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 12:22:21,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 12:22:21,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 12:22:21,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 12:22:21,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 12:22:21,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 12:22:21,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 12:22:21,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 12:22:21,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 12:22:21,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 12:22:21,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 12:22:21,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 12:22:21,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 12:22:21,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 12:22:21,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 12:22:21,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 12:22:21,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 12:22:21,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 12:22:21,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 12:22:21,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 12:22:21,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 12:22:21,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 12:22:21,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 12:22:21,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 12:22:21,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 12:22:21,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 12:22:21,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 12:22:21,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 12:22:21,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 12:22:21,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 12:22:21,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 12:22:21,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 12:22:21,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 12:22:21,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 12:22:21,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 12:22:21,540 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 12:22:21,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 12:22:21,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 12:22:21,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 12:22:21,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 12:22:21,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 12:22:21,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 12:22:21,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 12:22:21,542 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 12:22:21,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 12:22:21,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 12:22:21,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 12:22:21,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 12:22:21,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:22:21,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 12:22:21,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 12:22:21,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 12:22:21,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 12:22:21,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 12:22:21,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 12:22:21,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 12:22:21,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 12:22:22,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 12:22:22,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 12:22:22,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 12:22:22,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 12:22:22,117 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 12:22:22,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-12-22 12:22:22,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fee4368e1/ff89e57e6a33445f8c30785d0157cb45/FLAGbc9e9ad53 [2020-12-22 12:22:23,172 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 12:22:23,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-12-22 12:22:23,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fee4368e1/ff89e57e6a33445f8c30785d0157cb45/FLAGbc9e9ad53 [2020-12-22 12:22:23,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fee4368e1/ff89e57e6a33445f8c30785d0157cb45 [2020-12-22 12:22:23,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 12:22:23,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 12:22:23,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 12:22:23,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 12:22:23,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 12:22:23,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:22:23" (1/1) ... [2020-12-22 12:22:23,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de79647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:23, skipping insertion in model container [2020-12-22 12:22:23,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:22:23" (1/1) ... [2020-12-22 12:22:23,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 12:22:23,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 12:22:25,126 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2020-12-22 12:22:25,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:22:25,177 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 12:22:25,415 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2020-12-22 12:22:25,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:22:25,630 INFO L208 MainTranslator]: Completed translation [2020-12-22 12:22:25,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25 WrapperNode [2020-12-22 12:22:25,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 12:22:25,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 12:22:25,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 12:22:25,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 12:22:25,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... [2020-12-22 12:22:25,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... [2020-12-22 12:22:25,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 12:22:25,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 12:22:25,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 12:22:25,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 12:22:25,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... [2020-12-22 12:22:25,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... [2020-12-22 12:22:25,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... [2020-12-22 12:22:25,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... [2020-12-22 12:22:25,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... [2020-12-22 12:22:25,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... [2020-12-22 12:22:25,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... [2020-12-22 12:22:25,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 12:22:25,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 12:22:25,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 12:22:25,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 12:22:25,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:22:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 12:22:26,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 12:22:26,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 12:22:26,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 12:22:26,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 12:22:26,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 12:22:26,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 12:22:26,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 12:22:26,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 12:22:26,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 12:22:27,400 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 12:22:27,401 INFO L299 CfgBuilder]: Removed 107 assume(true) statements. [2020-12-22 12:22:27,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:22:27 BoogieIcfgContainer [2020-12-22 12:22:27,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 12:22:27,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 12:22:27,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 12:22:27,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 12:22:27,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:22:23" (1/3) ... [2020-12-22 12:22:27,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53eef856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:22:27, skipping insertion in model container [2020-12-22 12:22:27,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:25" (2/3) ... [2020-12-22 12:22:27,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53eef856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:22:27, skipping insertion in model container [2020-12-22 12:22:27,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:22:27" (3/3) ... [2020-12-22 12:22:27,412 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-12-22 12:22:27,419 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 12:22:27,424 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-22 12:22:27,444 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-22 12:22:27,471 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 12:22:27,471 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 12:22:27,471 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 12:22:27,471 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 12:22:27,471 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 12:22:27,472 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 12:22:27,472 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 12:22:27,472 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 12:22:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-12-22 12:22:27,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 12:22:27,496 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:22:27,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:22:27,497 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:22:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:22:27,504 INFO L82 PathProgramCache]: Analyzing trace with hash -653166678, now seen corresponding path program 1 times [2020-12-22 12:22:27,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:22:27,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640484558] [2020-12-22 12:22:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:22:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:22:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:22:27,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640484558] [2020-12-22 12:22:27,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:22:27,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 12:22:27,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969677937] [2020-12-22 12:22:27,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:22:27,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:22:27,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:22:27,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:22:27,935 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 3 states. [2020-12-22 12:22:28,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:22:28,009 INFO L93 Difference]: Finished difference Result 235 states and 307 transitions. [2020-12-22 12:22:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:22:28,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 12:22:28,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:22:28,029 INFO L225 Difference]: With dead ends: 235 [2020-12-22 12:22:28,030 INFO L226 Difference]: Without dead ends: 148 [2020-12-22 12:22:28,034 INFO L677 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 [2020-12-22 12:22:28,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-22 12:22:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-12-22 12:22:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-12-22 12:22:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 186 transitions. [2020-12-22 12:22:28,100 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 186 transitions. Word has length 9 [2020-12-22 12:22:28,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:22:28,100 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 186 transitions. [2020-12-22 12:22:28,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:22:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 186 transitions. [2020-12-22 12:22:28,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 12:22:28,103 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:22:28,103 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:22:28,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 12:22:28,104 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:22:28,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:22:28,105 INFO L82 PathProgramCache]: Analyzing trace with hash 950528437, now seen corresponding path program 1 times [2020-12-22 12:22:28,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:22:28,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567249019] [2020-12-22 12:22:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:22:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:22:28,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 12:22:28,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567249019] [2020-12-22 12:22:28,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:22:28,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 12:22:28,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261927155] [2020-12-22 12:22:28,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 12:22:28,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:22:28,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 12:22:28,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:22:28,378 INFO L87 Difference]: Start difference. First operand 148 states and 186 transitions. Second operand 4 states. [2020-12-22 12:22:28,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:22:28,455 INFO L93 Difference]: Finished difference Result 290 states and 365 transitions. [2020-12-22 12:22:28,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 12:22:28,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-12-22 12:22:28,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:22:28,460 INFO L225 Difference]: With dead ends: 290 [2020-12-22 12:22:28,460 INFO L226 Difference]: Without dead ends: 148 [2020-12-22 12:22:28,463 INFO L677 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 [2020-12-22 12:22:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-22 12:22:28,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-12-22 12:22:28,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-12-22 12:22:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2020-12-22 12:22:28,491 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 40 [2020-12-22 12:22:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:22:28,492 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2020-12-22 12:22:28,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 12:22:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2020-12-22 12:22:28,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 12:22:28,494 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:22:28,494 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:22:28,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 12:22:28,495 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:22:28,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:22:28,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1298860141, now seen corresponding path program 1 times [2020-12-22 12:22:28,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:22:28,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235170133] [2020-12-22 12:22:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:22:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 12:22:28,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 12:22:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 12:22:28,858 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 12:22:28,950 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 12:22:28,950 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 12:22:28,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 12:22:29,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:22:29 BoogieIcfgContainer [2020-12-22 12:22:29,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 12:22:29,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 12:22:29,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 12:22:29,139 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 12:22:29,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:22:27" (3/4) ... [2020-12-22 12:22:29,144 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 12:22:29,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 12:22:29,147 INFO L168 Benchmark]: Toolchain (without parser) took 5405.54 ms. Allocated memory was 156.2 MB in the beginning and 189.8 MB in the end (delta: 33.6 MB). Free memory was 125.5 MB in the beginning and 90.0 MB in the end (delta: 35.5 MB). Peak memory consumption was 70.1 MB. Max. memory is 8.0 GB. [2020-12-22 12:22:29,147 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 156.2 MB. Free memory is still 128.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 12:22:29,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1887.06 ms. Allocated memory was 156.2 MB in the beginning and 189.8 MB in the end (delta: 33.6 MB). Free memory was 125.3 MB in the beginning and 155.8 MB in the end (delta: -30.5 MB). Peak memory consumption was 89.3 MB. Max. memory is 8.0 GB. [2020-12-22 12:22:29,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 156.12 ms. Allocated memory is still 189.8 MB. Free memory was 155.8 MB in the beginning and 150.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-22 12:22:29,151 INFO L168 Benchmark]: Boogie Preprocessor took 130.41 ms. Allocated memory is still 189.8 MB. Free memory was 150.0 MB in the beginning and 145.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 12:22:29,155 INFO L168 Benchmark]: RCFGBuilder took 1482.94 ms. Allocated memory is still 189.8 MB. Free memory was 145.8 MB in the beginning and 135.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 57.8 MB. Max. memory is 8.0 GB. [2020-12-22 12:22:29,156 INFO L168 Benchmark]: TraceAbstraction took 1733.69 ms. Allocated memory is still 189.8 MB. Free memory was 134.8 MB in the beginning and 90.0 MB in the end (delta: 44.8 MB). Peak memory consumption was 45.3 MB. Max. memory is 8.0 GB. [2020-12-22 12:22:29,156 INFO L168 Benchmark]: Witness Printer took 5.15 ms. Allocated memory is still 189.8 MB. Free memory is still 90.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 12:22:29,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 156.2 MB. Free memory is still 128.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1887.06 ms. Allocated memory was 156.2 MB in the beginning and 189.8 MB in the end (delta: 33.6 MB). Free memory was 125.3 MB in the beginning and 155.8 MB in the end (delta: -30.5 MB). Peak memory consumption was 89.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 156.12 ms. Allocated memory is still 189.8 MB. Free memory was 155.8 MB in the beginning and 150.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 130.41 ms. Allocated memory is still 189.8 MB. Free memory was 150.0 MB in the beginning and 145.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1482.94 ms. Allocated memory is still 189.8 MB. Free memory was 145.8 MB in the beginning and 135.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 57.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1733.69 ms. Allocated memory is still 189.8 MB. Free memory was 134.8 MB in the beginning and 90.0 MB in the end (delta: 44.8 MB). Peak memory consumption was 45.3 MB. Max. memory is 8.0 GB. * Witness Printer took 5.15 ms. Allocated memory is still 189.8 MB. Free memory is still 90.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4185. Possible FailurePath: [L3648] static int major ; [L3649] static int index ; [L3974-L3975] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4173-L4174] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4175-L4178] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4179-L4180] 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}; [L4202] struct virtio_device_id const __mod_virtio_device_table ; [L4207] int LDV_IN_INTERRUPT ; [L4348] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4210] struct block_device *var_group1 ; [L4211] fmode_t var_virtblk_ioctl_5_p1 ; [L4212] unsigned int var_virtblk_ioctl_5_p2 ; [L4213] unsigned long var_virtblk_ioctl_5_p3 ; [L4214] struct hd_geometry *var_group2 ; [L4215] int tmp ; [L4216] int tmp___0 ; [L4217] int tmp___1 ; [L4219] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4183] int tmp ; [L4185] CALL, EXPR register_blkdev(0U, "virtblk") [L4531] return __VERIFIER_nondet_int(); [L4185] major = register_blkdev(0U, "virtblk") [L4186] COND FALSE !(major < 0) [L4535] return __VERIFIER_nondet_int(); [L4190] tmp = register_virtio_driver(& virtio_blk) [L4191] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4222] tmp = init() [L4223] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4244] tmp___1 = __VERIFIER_nondet_int() [L4245] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4229] tmp___0 = __VERIFIER_nondet_int() [L4231] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L3912] struct gendisk *disk ; [L3913] struct virtio_blk *vblk ; [L3914] void *usr_data ; [L3915] char id_str[20U] ; [L3916] int err ; [L3917] int tmp ; [L3918] bool tmp___0 ; [L3919] int tmp___1 ; [L3920] int tmp___2 ; [L3922] EXPR bdev->bd_disk [L3922] disk = bdev->bd_disk [L3923] EXPR disk->private_data [L3923] vblk = (struct virtio_blk *)disk->private_data [L3924] COND TRUE cmd == 1447184708U [L3925] usr_data = (void *)data [L3879] struct virtio_blk *vblk ; [L3880] struct request *req ; [L3881] struct bio *bio ; [L3882] long tmp ; [L3883] long tmp___0 ; [L3884] long tmp___1 ; [L3885] long tmp___2 ; [L3886] int tmp___3 ; [L3888] EXPR disk->private_data [L3888] vblk = (struct virtio_blk *)disk->private_data [L3889] EXPR vblk->disk [L3889] EXPR (vblk->disk)->queue [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4427] return ldv_malloc(sizeof(struct bio)); [L3889] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4274] long tmp ; [L4307] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L3890] tmp___0 = IS_ERR((void const *)bio) [L3891] COND FALSE !(tmp___0 != 0L) [L3896] EXPR vblk->disk [L3896] EXPR (vblk->disk)->queue [L4283] ldv_func_ret_type___3 ldv_func_res ; [L4284] struct request *tmp ; [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4443] return ldv_malloc(sizeof(struct request)); [L4286] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4287] ldv_func_res = tmp [L4351] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4353] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4357] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4358] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4289] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L3896] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4274] long tmp ; [L4307] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L3897] tmp___2 = IS_ERR((void const *)req) [L3898] COND FALSE !(tmp___2 != 0L) [L3904] req->cmd_type = 7 [L3905] EXPR vblk->disk [L3905] EXPR (vblk->disk)->queue [L3905] EXPR vblk->disk [L4437] return __VERIFIER_nondet_int(); [L3905] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3906] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L3926] err = virtblk_get_id(disk, (char *)(& id_str)) [L3927] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L3935] return (err); [L3935] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4244] tmp___1 = __VERIFIER_nondet_int() [L4245] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4385] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4295] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 88 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 222 SDtfs, 98 SDslu, 288 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=148occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 2009 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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...