./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 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f04f938fee3705b6ab112999ad746b29d3f93a10 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f04f938fee3705b6ab112999ad746b29d3f93a10 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:49:42,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:49:42,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:49:42,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:49:42,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:49:42,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:49:42,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:49:42,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:49:42,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:49:42,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:49:42,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:49:42,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:49:42,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:49:42,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:49:42,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:49:42,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:49:42,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:49:42,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:49:42,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:49:42,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:49:42,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:49:42,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:49:42,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:49:42,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:49:42,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:49:42,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:49:42,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:49:42,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:49:42,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:49:42,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:49:42,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:49:42,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:49:42,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:49:42,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:49:42,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:49:42,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:49:42,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:49:42,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:49:42,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:49:42,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:49:42,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:49:42,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-20 03:49:42,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:49:42,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:49:42,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:49:42,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:49:42,726 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:49:42,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:49:42,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:49:42,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:49:42,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:49:42,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:49:42,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:49:42,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:49:42,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:49:42,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:49:42,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:49:42,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:49:42,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:49:42,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:49:42,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:49:42,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:49:42,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:49:42,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:49:42,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:49:42,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:49:42,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:49:42,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:49:42,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 03:49:42,730 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_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 -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2020-10-20 03:49:42,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:49:43,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:49:43,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:49:43,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:49:43,009 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:49:43,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-10-20 03:49:43,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e879e862b/76f1a64c0261472b8148579284f7d5dc/FLAG5e196d150 [2020-10-20 03:49:43,919 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:49:43,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-10-20 03:49:43,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e879e862b/76f1a64c0261472b8148579284f7d5dc/FLAG5e196d150 [2020-10-20 03:49:44,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e879e862b/76f1a64c0261472b8148579284f7d5dc [2020-10-20 03:49:44,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:49:44,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:49:44,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:49:44,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:49:44,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:49:44,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:49:44" (1/1) ... [2020-10-20 03:49:44,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5ec251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:44, skipping insertion in model container [2020-10-20 03:49:44,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:49:44" (1/1) ... [2020-10-20 03:49:44,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:49:44,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:49:45,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:49:45,269 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:49:45,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:49:45,936 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:49:45,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45 WrapperNode [2020-10-20 03:49:45,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:49:45,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:49:45,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:49:45,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:49:45,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (1/1) ... [2020-10-20 03:49:46,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (1/1) ... [2020-10-20 03:49:46,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:49:46,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:49:46,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:49:46,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:49:46,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (1/1) ... [2020-10-20 03:49:46,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (1/1) ... [2020-10-20 03:49:46,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (1/1) ... [2020-10-20 03:49:46,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (1/1) ... [2020-10-20 03:49:46,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (1/1) ... [2020-10-20 03:49:46,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (1/1) ... [2020-10-20 03:49:46,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (1/1) ... [2020-10-20 03:49:46,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:49:46,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:49:46,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:49:46,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:49:46,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (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 [2020-10-20 03:49:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 03:49:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:49:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 03:49:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:49:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 03:49:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:49:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 03:49:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:49:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:49:46,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:49:47,562 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:49:47,563 INFO L298 CfgBuilder]: Removed 111 assume(true) statements. [2020-10-20 03:49:47,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:49:47 BoogieIcfgContainer [2020-10-20 03:49:47,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:49:47,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:49:47,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:49:47,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:49:47,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:49:44" (1/3) ... [2020-10-20 03:49:47,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1839fe85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:49:47, skipping insertion in model container [2020-10-20 03:49:47,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:45" (2/3) ... [2020-10-20 03:49:47,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1839fe85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:49:47, skipping insertion in model container [2020-10-20 03:49:47,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:49:47" (3/3) ... [2020-10-20 03:49:47,575 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-10-20 03:49:47,589 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:49:47,597 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 03:49:47,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-20 03:49:47,635 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:49:47,635 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:49:47,635 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:49:47,635 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:49:47,636 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:49:47,636 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:49:47,636 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:49:47,636 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:49:47,651 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-10-20 03:49:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:49:47,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:49:47,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:49:47,658 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:49:47,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:49:47,664 INFO L82 PathProgramCache]: Analyzing trace with hash -627697685, now seen corresponding path program 1 times [2020-10-20 03:49:47,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:49:47,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142664658] [2020-10-20 03:49:47,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:49:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:49:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:49:48,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142664658] [2020-10-20 03:49:48,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:49:48,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:49:48,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627534837] [2020-10-20 03:49:48,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:49:48,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:49:48,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:49:48,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:49:48,052 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2020-10-20 03:49:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:49:48,123 INFO L93 Difference]: Finished difference Result 245 states and 321 transitions. [2020-10-20 03:49:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:49:48,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-20 03:49:48,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:49:48,139 INFO L225 Difference]: With dead ends: 245 [2020-10-20 03:49:48,139 INFO L226 Difference]: Without dead ends: 152 [2020-10-20 03:49:48,143 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 [2020-10-20 03:49:48,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-20 03:49:48,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-10-20 03:49:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-20 03:49:48,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2020-10-20 03:49:48,209 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 11 [2020-10-20 03:49:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:49:48,210 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2020-10-20 03:49:48,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:49:48,210 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2020-10-20 03:49:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 03:49:48,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:49:48,213 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, 1] [2020-10-20 03:49:48,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:49:48,213 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:49:48,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:49:48,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1630709566, now seen corresponding path program 1 times [2020-10-20 03:49:48,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:49:48,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766231291] [2020-10-20 03:49:48,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:49:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:49:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 03:49:48,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766231291] [2020-10-20 03:49:48,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:49:48,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:49:48,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998117567] [2020-10-20 03:49:48,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:49:48,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:49:48,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:49:48,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:49:48,436 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 4 states. [2020-10-20 03:49:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:49:48,488 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2020-10-20 03:49:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:49:48,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-20 03:49:48,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:49:48,493 INFO L225 Difference]: With dead ends: 298 [2020-10-20 03:49:48,493 INFO L226 Difference]: Without dead ends: 152 [2020-10-20 03:49:48,498 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 [2020-10-20 03:49:48,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-20 03:49:48,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-10-20 03:49:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-20 03:49:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 189 transitions. [2020-10-20 03:49:48,517 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 189 transitions. Word has length 42 [2020-10-20 03:49:48,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:49:48,517 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 189 transitions. [2020-10-20 03:49:48,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:49:48,517 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 189 transitions. [2020-10-20 03:49:48,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 03:49:48,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:49:48,519 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, 1, 1] [2020-10-20 03:49:48,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:49:48,520 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:49:48,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:49:48,520 INFO L82 PathProgramCache]: Analyzing trace with hash 336835996, now seen corresponding path program 1 times [2020-10-20 03:49:48,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:49:48,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345709190] [2020-10-20 03:49:48,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:49:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 03:49:48,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 03:49:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 03:49:48,903 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 03:49:48,967 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 03:49:48,968 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 03:49:48,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:49:49,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,082 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,100 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,107 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:49:49,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:49:49,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:49:49 BoogieIcfgContainer [2020-10-20 03:49:49,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:49:49,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:49:49,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:49:49,186 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:49:49,186 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:49:47" (3/4) ... [2020-10-20 03:49:49,191 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 03:49:49,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:49:49,195 INFO L168 Benchmark]: Toolchain (without parser) took 5148.62 ms. Allocated memory was 42.5 MB in the beginning and 91.8 MB in the end (delta: 49.3 MB). Free memory was 14.8 MB in the beginning and 57.2 MB in the end (delta: -42.4 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:49:49,197 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 32.0 MB. Free memory was 9.4 MB in the beginning and 9.3 MB in the end (delta: 52.9 kB). Peak memory consumption was 52.9 kB. Max. memory is 14.3 GB. [2020-10-20 03:49:49,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1881.81 ms. Allocated memory was 42.5 MB in the beginning and 64.5 MB in the end (delta: 22.0 MB). Free memory was 13.9 MB in the beginning and 15.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 21.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:49:49,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 209.04 ms. Allocated memory was 64.5 MB in the beginning and 66.1 MB in the end (delta: 1.6 MB). Free memory was 15.0 MB in the beginning and 32.6 MB in the end (delta: -17.6 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:49:49,202 INFO L168 Benchmark]: Boogie Preprocessor took 126.42 ms. Allocated memory is still 66.1 MB. Free memory was 32.6 MB in the beginning and 28.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:49:49,205 INFO L168 Benchmark]: RCFGBuilder took 1290.44 ms. Allocated memory was 66.1 MB in the beginning and 87.6 MB in the end (delta: 21.5 MB). Free memory was 28.1 MB in the beginning and 58.0 MB in the end (delta: -29.9 MB). Peak memory consumption was 28.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:49:49,212 INFO L168 Benchmark]: TraceAbstraction took 1617.10 ms. Allocated memory was 87.6 MB in the beginning and 91.8 MB in the end (delta: 4.2 MB). Free memory was 57.3 MB in the beginning and 58.0 MB in the end (delta: -688.0 kB). Peak memory consumption was 40.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:49:49,213 INFO L168 Benchmark]: Witness Printer took 6.03 ms. Allocated memory is still 91.8 MB. Free memory was 58.0 MB in the beginning and 57.2 MB in the end (delta: 781.4 kB). Peak memory consumption was 781.4 kB. Max. memory is 14.3 GB. [2020-10-20 03:49:49,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 32.0 MB. Free memory was 9.4 MB in the beginning and 9.3 MB in the end (delta: 52.9 kB). Peak memory consumption was 52.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 1881.81 ms. Allocated memory was 42.5 MB in the beginning and 64.5 MB in the end (delta: 22.0 MB). Free memory was 13.9 MB in the beginning and 15.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 21.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 209.04 ms. Allocated memory was 64.5 MB in the beginning and 66.1 MB in the end (delta: 1.6 MB). Free memory was 15.0 MB in the beginning and 32.6 MB in the end (delta: -17.6 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 126.42 ms. Allocated memory is still 66.1 MB. Free memory was 32.6 MB in the beginning and 28.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1290.44 ms. Allocated memory was 66.1 MB in the beginning and 87.6 MB in the end (delta: 21.5 MB). Free memory was 28.1 MB in the beginning and 58.0 MB in the end (delta: -29.9 MB). Peak memory consumption was 28.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1617.10 ms. Allocated memory was 87.6 MB in the beginning and 91.8 MB in the end (delta: 4.2 MB). Free memory was 57.3 MB in the beginning and 58.0 MB in the end (delta: -688.0 kB). Peak memory consumption was 40.5 MB. Max. memory is 14.3 GB. * Witness Printer took 6.03 ms. Allocated memory is still 91.8 MB. Free memory was 58.0 MB in the beginning and 57.2 MB in the end (delta: 781.4 kB). Peak memory consumption was 781.4 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: 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 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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={18446744073709551616:18446744073709551614}, 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}] [L12] COND FALSE !(0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, 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}] [L12] __assert_fail ("0", "m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, 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, 94 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 230 SDtfs, 98 SDslu, 300 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=152occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 2249 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... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:49:51,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:49:51,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:49:51,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:49:51,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:49:51,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:49:51,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:49:51,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:49:51,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:49:51,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:49:51,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:49:51,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:49:51,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:49:51,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:49:51,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:49:51,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:49:51,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:49:51,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:49:51,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:49:51,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:49:51,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:49:51,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:49:51,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:49:51,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:49:51,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:49:51,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:49:51,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:49:51,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:49:51,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:49:51,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:49:51,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:49:51,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:49:51,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:49:51,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:49:51,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:49:51,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:49:51,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:49:51,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:49:51,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:49:51,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:49:51,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:49:51,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2020-10-20 03:49:51,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:49:51,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:49:51,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:49:51,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:49:51,502 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:49:51,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:49:51,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:49:51,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:49:51,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:49:51,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:49:51,505 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 03:49:51,505 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 03:49:51,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:49:51,506 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:49:51,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:49:51,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:49:51,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:49:51,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:49:51,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:49:51,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:49:51,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:49:51,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:49:51,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:49:51,508 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 03:49:51,509 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 03:49:51,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:49:51,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:49:51,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 03:49:51,510 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2020-10-20 03:49:51,510 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_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 -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2020-10-20 03:49:51,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:49:51,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:49:51,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:49:51,747 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:49:51,747 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:49:51,748 INFO L432 ainManager$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 [2020-10-20 03:49:51,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85dd359dc/b185a6304da049eab18335712924b1d5/FLAG9ac12c9f4 [2020-10-20 03:49:52,591 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:49:52,592 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 [2020-10-20 03:49:52,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85dd359dc/b185a6304da049eab18335712924b1d5/FLAG9ac12c9f4 [2020-10-20 03:49:52,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85dd359dc/b185a6304da049eab18335712924b1d5 [2020-10-20 03:49:52,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:49:52,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:49:52,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:49:52,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:49:52,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:49:52,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:49:52" (1/1) ... [2020-10-20 03:49:52,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d9bedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:52, skipping insertion in model container [2020-10-20 03:49:52,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:49:52" (1/1) ... [2020-10-20 03:49:52,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:49:52,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:49:54,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:49:54,051 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:49:54,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:49:54,588 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:49:54,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54 WrapperNode [2020-10-20 03:49:54,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:49:54,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:49:54,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:49:54,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:49:54,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (1/1) ... [2020-10-20 03:49:54,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (1/1) ... [2020-10-20 03:49:54,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:49:54,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:49:54,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:49:54,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:49:54,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (1/1) ... [2020-10-20 03:49:54,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (1/1) ... [2020-10-20 03:49:54,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (1/1) ... [2020-10-20 03:49:54,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (1/1) ... [2020-10-20 03:49:54,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (1/1) ... [2020-10-20 03:49:54,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (1/1) ... [2020-10-20 03:49:54,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (1/1) ... [2020-10-20 03:49:54,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:49:54,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:49:54,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:49:54,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:49:54,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (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 [2020-10-20 03:49:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-20 03:49:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2020-10-20 03:49:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2020-10-20 03:49:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 03:49:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:49:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 03:49:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-20 03:49:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2020-10-20 03:49:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:49:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 03:49:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 03:49:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 03:49:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-10-20 03:49:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:49:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:49:56,670 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:49:56,670 INFO L298 CfgBuilder]: Removed 111 assume(true) statements. [2020-10-20 03:49:56,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:49:56 BoogieIcfgContainer [2020-10-20 03:49:56,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:49:56,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:49:56,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:49:56,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:49:56,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:49:52" (1/3) ... [2020-10-20 03:49:56,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a13e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:49:56, skipping insertion in model container [2020-10-20 03:49:56,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:49:54" (2/3) ... [2020-10-20 03:49:56,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a13e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:49:56, skipping insertion in model container [2020-10-20 03:49:56,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:49:56" (3/3) ... [2020-10-20 03:49:56,682 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-10-20 03:49:56,694 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:49:56,702 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 03:49:56,717 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-20 03:49:56,745 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:49:56,745 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:49:56,746 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:49:56,746 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:49:56,746 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:49:56,746 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:49:56,746 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:49:56,746 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:49:56,763 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-10-20 03:49:56,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:49:56,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:49:56,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:49:56,771 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:49:56,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:49:56,777 INFO L82 PathProgramCache]: Analyzing trace with hash -627697685, now seen corresponding path program 1 times [2020-10-20 03:49:56,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 03:49:56,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107955005] [2020-10-20 03:49:56,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 03:49:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:49:57,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 03:49:57,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 03:49:57,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:49:57,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 03:49:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:49:57,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107955005] [2020-10-20 03:49:57,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:49:57,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 03:49:57,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137523822] [2020-10-20 03:49:57,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:49:57,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 03:49:57,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:49:57,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:49:57,249 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2020-10-20 03:49:57,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:49:57,317 INFO L93 Difference]: Finished difference Result 245 states and 321 transitions. [2020-10-20 03:49:57,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:49:57,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-20 03:49:57,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:49:57,333 INFO L225 Difference]: With dead ends: 245 [2020-10-20 03:49:57,334 INFO L226 Difference]: Without dead ends: 152 [2020-10-20 03:49:57,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:49:57,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-20 03:49:57,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-10-20 03:49:57,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-20 03:49:57,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2020-10-20 03:49:57,395 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 11 [2020-10-20 03:49:57,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:49:57,395 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2020-10-20 03:49:57,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:49:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2020-10-20 03:49:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 03:49:57,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:49:57,399 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, 1] [2020-10-20 03:49:57,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 03:49:57,600 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:49:57,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:49:57,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1630709566, now seen corresponding path program 1 times [2020-10-20 03:49:57,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 03:49:57,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748684957] [2020-10-20 03:49:57,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 03:49:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:49:57,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 03:49:57,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 03:49:58,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 03:49:58,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 03:49:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 03:49:58,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748684957] [2020-10-20 03:49:58,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:49:58,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 03:49:58,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264240719] [2020-10-20 03:49:58,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:49:58,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 03:49:58,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:49:58,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:49:58,066 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 6 states. [2020-10-20 03:49:58,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:49:58,160 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2020-10-20 03:49:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:49:58,172 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-10-20 03:49:58,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:49:58,175 INFO L225 Difference]: With dead ends: 298 [2020-10-20 03:49:58,177 INFO L226 Difference]: Without dead ends: 152 [2020-10-20 03:49:58,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:49:58,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-20 03:49:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-10-20 03:49:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-20 03:49:58,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 189 transitions. [2020-10-20 03:49:58,221 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 189 transitions. Word has length 42 [2020-10-20 03:49:58,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:49:58,223 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 189 transitions. [2020-10-20 03:49:58,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:49:58,226 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 189 transitions. [2020-10-20 03:49:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 03:49:58,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:49:58,229 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, 1, 1] [2020-10-20 03:49:58,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 03:49:58,445 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:49:58,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:49:58,445 INFO L82 PathProgramCache]: Analyzing trace with hash 336835996, now seen corresponding path program 1 times [2020-10-20 03:49:58,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 03:49:58,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421905665] [2020-10-20 03:49:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 03:49:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 03:49:59,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 03:50:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 03:50:00,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 03:50:01,010 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 03:50:01,011 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 03:50:01,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 03:50:01,354 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,357 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,365 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,367 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,368 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,368 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,409 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,409 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,410 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,410 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-10-20 03:50:01,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-10-20 03:50:01,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:50:01 BoogieIcfgContainer [2020-10-20 03:50:01,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:50:01,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:50:01,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:50:01,435 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:50:01,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:49:56" (3/4) ... [2020-10-20 03:50:01,439 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 03:50:01,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:50:01,443 INFO L168 Benchmark]: Toolchain (without parser) took 8746.91 ms. Allocated memory was 39.3 MB in the beginning and 97.5 MB in the end (delta: 58.2 MB). Free memory was 18.8 MB in the beginning and 57.6 MB in the end (delta: -38.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:50:01,444 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 36.7 MB. Free memory was 16.1 MB in the beginning and 16.0 MB in the end (delta: 49.1 kB). Peak memory consumption was 49.1 kB. Max. memory is 14.3 GB. [2020-10-20 03:50:01,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1889.30 ms. Allocated memory was 39.3 MB in the beginning and 62.4 MB in the end (delta: 23.1 MB). Free memory was 17.9 MB in the beginning and 29.5 MB in the end (delta: -11.6 MB). Peak memory consumption was 34.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:50:01,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 207.01 ms. Allocated memory is still 62.4 MB. Free memory was 29.5 MB in the beginning and 23.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:50:01,446 INFO L168 Benchmark]: Boogie Preprocessor took 121.71 ms. Allocated memory is still 62.4 MB. Free memory was 23.6 MB in the beginning and 18.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:50:01,447 INFO L168 Benchmark]: RCFGBuilder took 1752.13 ms. Allocated memory was 62.4 MB in the beginning and 87.6 MB in the end (delta: 25.2 MB). Free memory was 18.8 MB in the beginning and 55.4 MB in the end (delta: -36.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:50:01,448 INFO L168 Benchmark]: TraceAbstraction took 4760.33 ms. Allocated memory was 87.6 MB in the beginning and 97.5 MB in the end (delta: 10.0 MB). Free memory was 54.6 MB in the beginning and 58.6 MB in the end (delta: -4.0 MB). Peak memory consumption was 49.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:50:01,449 INFO L168 Benchmark]: Witness Printer took 5.62 ms. Allocated memory is still 97.5 MB. Free memory was 58.6 MB in the beginning and 57.6 MB in the end (delta: 946.7 kB). Peak memory consumption was 946.7 kB. Max. memory is 14.3 GB. [2020-10-20 03:50:01,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 36.7 MB. Free memory was 16.1 MB in the beginning and 16.0 MB in the end (delta: 49.1 kB). Peak memory consumption was 49.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 1889.30 ms. Allocated memory was 39.3 MB in the beginning and 62.4 MB in the end (delta: 23.1 MB). Free memory was 17.9 MB in the beginning and 29.5 MB in the end (delta: -11.6 MB). Peak memory consumption was 34.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 207.01 ms. Allocated memory is still 62.4 MB. Free memory was 29.5 MB in the beginning and 23.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 121.71 ms. Allocated memory is still 62.4 MB. Free memory was 23.6 MB in the beginning and 18.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1752.13 ms. Allocated memory was 62.4 MB in the beginning and 87.6 MB in the end (delta: 25.2 MB). Free memory was 18.8 MB in the beginning and 55.4 MB in the end (delta: -36.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4760.33 ms. Allocated memory was 87.6 MB in the beginning and 97.5 MB in the end (delta: 10.0 MB). Free memory was 54.6 MB in the beginning and 58.6 MB in the end (delta: -4.0 MB). Peak memory consumption was 49.1 MB. Max. memory is 14.3 GB. * Witness Printer took 5.62 ms. Allocated memory is still 97.5 MB. Free memory was 58.6 MB in the beginning and 57.6 MB in the end (delta: 946.7 kB). Peak memory consumption was 946.7 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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: 12]: 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 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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4222] tmp = init() [L4223] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4229] tmp___0 = __VERIFIER_nondet_int() [L4231] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4353] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4289] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L3935] return (err); [L3935] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4385] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L12] COND FALSE !(0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L12] __assert_fail ("0", "m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 230 SDtfs, 99 SDslu, 406 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 4252 SizeOfPredicates, 4 NumberOfNonLiveVariables, 531 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, 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...