./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 f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4c93cb68d7efd5264db4877f0cef6da4a9a585eb .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4c93cb68d7efd5264db4877f0cef6da4a9a585eb ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 19:00:48,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 19:00:48,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 19:00:48,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 19:00:48,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 19:00:48,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 19:00:48,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 19:00:48,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 19:00:48,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 19:00:48,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 19:00:48,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 19:00:48,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 19:00:48,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 19:00:48,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 19:00:48,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 19:00:49,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 19:00:49,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 19:00:49,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 19:00:49,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 19:00:49,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 19:00:49,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 19:00:49,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 19:00:49,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 19:00:49,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 19:00:49,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 19:00:49,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 19:00:49,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 19:00:49,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 19:00:49,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 19:00:49,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 19:00:49,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 19:00:49,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 19:00:49,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 19:00:49,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 19:00:49,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 19:00:49,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 19:00:49,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 19:00:49,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 19:00:49,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 19:00:49,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 19:00:49,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 19:00:49,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-28 19:00:49,052 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 19:00:49,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 19:00:49,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 19:00:49,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 19:00:49,054 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 19:00:49,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 19:00:49,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 19:00:49,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 19:00:49,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 19:00:49,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 19:00:49,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 19:00:49,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 19:00:49,057 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 19:00:49,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 19:00:49,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 19:00:49,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 19:00:49,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 19:00:49,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 19:00:49,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 19:00:49,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 19:00:49,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 19:00:49,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 19:00:49,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 19:00:49,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 19:00:49,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 19:00:49,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 19:00:49,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 19:00:49,060 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c93cb68d7efd5264db4877f0cef6da4a9a585eb [2019-11-28 19:00:49,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 19:00:49,402 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 19:00:49,405 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 19:00:49,407 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 19:00:49,407 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 19:00:49,408 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 19:00:49,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b518d80/9003c4b6768043e6979bc5057a197802/FLAGbc997723b [2019-11-28 19:00:50,262 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 19:00:50,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 19:00:50,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b518d80/9003c4b6768043e6979bc5057a197802/FLAGbc997723b [2019-11-28 19:00:50,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b518d80/9003c4b6768043e6979bc5057a197802 [2019-11-28 19:00:50,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 19:00:50,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 19:00:50,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 19:00:50,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 19:00:50,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 19:00:50,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:00:50" (1/1) ... [2019-11-28 19:00:50,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222b6cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:50, skipping insertion in model container [2019-11-28 19:00:50,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:00:50" (1/1) ... [2019-11-28 19:00:50,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 19:00:50,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 19:00:51,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 19:00:51,777 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 19:00:52,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 19:00:52,136 INFO L208 MainTranslator]: Completed translation [2019-11-28 19:00:52,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52 WrapperNode [2019-11-28 19:00:52,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 19:00:52,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 19:00:52,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 19:00:52,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 19:00:52,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... [2019-11-28 19:00:52,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... [2019-11-28 19:00:52,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 19:00:52,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 19:00:52,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 19:00:52,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 19:00:52,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... [2019-11-28 19:00:52,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... [2019-11-28 19:00:52,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... [2019-11-28 19:00:52,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... [2019-11-28 19:00:52,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... [2019-11-28 19:00:52,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... [2019-11-28 19:00:52,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... [2019-11-28 19:00:52,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 19:00:52,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 19:00:52,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 19:00:52,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 19:00:52,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 19:00:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 19:00:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 19:00:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 19:00:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 19:00:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 19:00:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 19:00:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-28 19:00:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 19:00:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 19:00:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 19:00:53,570 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 19:00:53,571 INFO L287 CfgBuilder]: Removed 103 assume(true) statements. [2019-11-28 19:00:53,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:00:53 BoogieIcfgContainer [2019-11-28 19:00:53,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 19:00:53,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 19:00:53,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 19:00:53,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 19:00:53,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:00:50" (1/3) ... [2019-11-28 19:00:53,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23124be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:00:53, skipping insertion in model container [2019-11-28 19:00:53,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:52" (2/3) ... [2019-11-28 19:00:53,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23124be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:00:53, skipping insertion in model container [2019-11-28 19:00:53,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:00:53" (3/3) ... [2019-11-28 19:00:53,581 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 19:00:53,592 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 19:00:53,600 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 19:00:53,613 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 19:00:53,643 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 19:00:53,645 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 19:00:53,645 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 19:00:53,647 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 19:00:53,647 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 19:00:53,647 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 19:00:53,647 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 19:00:53,648 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 19:00:53,672 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-11-28 19:00:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 19:00:53,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 19:00:53,682 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 19:00:53,683 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 19:00:53,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 19:00:53,691 INFO L82 PathProgramCache]: Analyzing trace with hash -653167126, now seen corresponding path program 1 times [2019-11-28 19:00:53,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 19:00:53,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335693405] [2019-11-28 19:00:53,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 19:00:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 19:00:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 19:00:54,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335693405] [2019-11-28 19:00:54,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 19:00:54,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 19:00:54,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844577976] [2019-11-28 19:00:54,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 19:00:54,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 19:00:54,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 19:00:54,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 19:00:54,100 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-11-28 19:00:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 19:00:54,183 INFO L93 Difference]: Finished difference Result 223 states and 289 transitions. [2019-11-28 19:00:54,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 19:00:54,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-28 19:00:54,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 19:00:54,201 INFO L225 Difference]: With dead ends: 223 [2019-11-28 19:00:54,201 INFO L226 Difference]: Without dead ends: 140 [2019-11-28 19:00:54,205 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 19:00:54,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-28 19:00:54,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-28 19:00:54,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 19:00:54,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2019-11-28 19:00:54,268 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 178 transitions. Word has length 9 [2019-11-28 19:00:54,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 19:00:54,269 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 178 transitions. [2019-11-28 19:00:54,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 19:00:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 178 transitions. [2019-11-28 19:00:54,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-28 19:00:54,273 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 19:00:54,273 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 19:00:54,273 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 19:00:54,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 19:00:54,274 INFO L82 PathProgramCache]: Analyzing trace with hash -217429113, now seen corresponding path program 1 times [2019-11-28 19:00:54,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 19:00:54,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061556456] [2019-11-28 19:00:54,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 19:00:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 19:00:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 19:00:54,557 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061556456] [2019-11-28 19:00:54,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 19:00:54,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 19:00:54,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147523304] [2019-11-28 19:00:54,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 19:00:54,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 19:00:54,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 19:00:54,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 19:00:54,563 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand 4 states. [2019-11-28 19:00:54,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 19:00:54,647 INFO L93 Difference]: Finished difference Result 274 states and 349 transitions. [2019-11-28 19:00:54,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 19:00:54,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2019-11-28 19:00:54,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 19:00:54,651 INFO L225 Difference]: With dead ends: 274 [2019-11-28 19:00:54,651 INFO L226 Difference]: Without dead ends: 140 [2019-11-28 19:00:54,653 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 19:00:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-28 19:00:54,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-28 19:00:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 19:00:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2019-11-28 19:00:54,685 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 40 [2019-11-28 19:00:54,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 19:00:54,685 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2019-11-28 19:00:54,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 19:00:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2019-11-28 19:00:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-28 19:00:54,687 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 19:00:54,688 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 19:00:54,688 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 19:00:54,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 19:00:54,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1828149605, now seen corresponding path program 1 times [2019-11-28 19:00:54,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 19:00:54,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288485886] [2019-11-28 19:00:54,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 19:00:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 19:00:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 19:00:54,976 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 19:00:54,976 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 19:00:55,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,082 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,100 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,139 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,140 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:00:55,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:00:55,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:00:55 BoogieIcfgContainer [2019-11-28 19:00:55,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 19:00:55,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 19:00:55,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 19:00:55,158 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 19:00:55,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:00:53" (3/4) ... [2019-11-28 19:00:55,167 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 19:00:55,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 19:00:55,170 INFO L168 Benchmark]: Toolchain (without parser) took 4833.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 952.3 MB in the beginning and 832.4 MB in the end (delta: 119.9 MB). Peak memory consumption was 257.8 MB. Max. memory is 11.5 GB. [2019-11-28 19:00:55,171 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 19:00:55,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1801.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. [2019-11-28 19:00:55,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 201.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 19:00:55,174 INFO L168 Benchmark]: Boogie Preprocessor took 125.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 19:00:55,175 INFO L168 Benchmark]: RCFGBuilder took 1105.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 934.4 MB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. [2019-11-28 19:00:55,176 INFO L168 Benchmark]: TraceAbstraction took 1582.85 ms. Allocated memory is still 1.2 GB. Free memory was 934.4 MB in the beginning and 832.4 MB in the end (delta: 102.1 MB). Peak memory consumption was 102.1 MB. Max. memory is 11.5 GB. [2019-11-28 19:00:55,177 INFO L168 Benchmark]: Witness Printer took 10.03 ms. Allocated memory is still 1.2 GB. Free memory is still 832.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 19:00:55,182 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1801.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 201.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 125.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1105.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 934.4 MB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1582.85 ms. Allocated memory is still 1.2 GB. Free memory was 934.4 MB in the beginning and 832.4 MB in the end (delta: 102.1 MB). Peak memory consumption was 102.1 MB. Max. memory is 11.5 GB. * Witness Printer took 10.03 ms. Allocated memory is still 1.2 GB. Free memory is still 832.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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: 4281]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4171. Possible FailurePath: [L3634] static int major ; [L3635] static int index ; [L3960-L3961] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4159-L4160] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4161-L4164] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4165-L4166] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4188] struct virtio_device_id const __mod_virtio_device_table ; [L4193] int LDV_IN_INTERRUPT ; [L4334] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4196] struct block_device *var_group1 ; [L4197] fmode_t var_virtblk_ioctl_5_p1 ; [L4198] unsigned int var_virtblk_ioctl_5_p2 ; [L4199] unsigned long var_virtblk_ioctl_5_p3 ; [L4200] struct hd_geometry *var_group2 ; [L4201] int tmp ; [L4202] int tmp___0 ; [L4203] int tmp___1 ; [L4205] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4517] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4521] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4215] tmp___0 = __VERIFIER_nondet_int() [L4217] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3898] struct gendisk *disk ; [L3899] struct virtio_blk *vblk ; [L3900] void *usr_data ; [L3901] char id_str[20U] ; [L3902] int err ; [L3903] int tmp ; [L3904] bool tmp___0 ; [L3905] int tmp___1 ; [L3906] int tmp___2 ; [L3908] EXPR bdev->bd_disk [L3908] disk = bdev->bd_disk [L3909] EXPR disk->private_data [L3909] vblk = (struct virtio_blk *)disk->private_data [L3910] COND TRUE cmd == 1447184708U [L3911] usr_data = (void *)data [L3865] struct virtio_blk *vblk ; [L3866] struct request *req ; [L3867] struct bio *bio ; [L3868] long tmp ; [L3869] long tmp___0 ; [L3870] long tmp___1 ; [L3871] long tmp___2 ; [L3872] int tmp___3 ; [L3874] EXPR disk->private_data [L3874] vblk = (struct virtio_blk *)disk->private_data [L3875] EXPR vblk->disk [L3875] EXPR (vblk->disk)->queue [L3442] COND FALSE !(__VERIFIER_nondet_int()) [L3447] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4413] return ldv_malloc(sizeof(struct bio)); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3876] tmp___0 = IS_ERR((void const *)bio) [L3877] COND FALSE !(tmp___0 != 0L) [L3882] EXPR vblk->disk [L3882] EXPR (vblk->disk)->queue [L4269] ldv_func_ret_type___3 ldv_func_res ; [L4270] struct request *tmp ; [L3442] COND FALSE !(__VERIFIER_nondet_int()) [L3447] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4429] return ldv_malloc(sizeof(struct request)); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4343] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4344] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3882] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3883] tmp___2 = IS_ERR((void const *)req) [L3884] COND FALSE !(tmp___2 != 0L) [L3890] req->cmd_type = 7 [L3891] EXPR vblk->disk [L3891] EXPR (vblk->disk)->queue [L3891] EXPR vblk->disk [L4423] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3912] err = virtblk_get_id(disk, (char *)(& id_str)) [L3913] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551620:18446744073709551623}, features={31:0}, id_table={19:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={30:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 2 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 214 SDtfs, 94 SDslu, 276 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=140occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 2009 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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-f470102 [2019-11-28 19:00:57,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 19:00:57,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 19:00:57,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 19:00:57,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 19:00:57,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 19:00:57,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 19:00:57,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 19:00:57,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 19:00:57,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 19:00:57,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 19:00:57,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 19:00:57,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 19:00:57,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 19:00:57,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 19:00:57,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 19:00:57,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 19:00:57,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 19:00:57,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 19:00:57,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 19:00:57,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 19:00:57,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 19:00:57,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 19:00:57,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 19:00:57,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 19:00:57,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 19:00:57,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 19:00:57,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 19:00:57,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 19:00:57,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 19:00:57,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 19:00:57,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 19:00:57,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 19:00:57,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 19:00:57,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 19:00:57,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 19:00:57,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 19:00:57,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 19:00:57,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 19:00:57,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 19:00:57,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 19:00:57,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-28 19:00:57,387 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 19:00:57,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 19:00:57,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 19:00:57,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 19:00:57,389 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 19:00:57,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 19:00:57,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 19:00:57,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 19:00:57,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 19:00:57,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 19:00:57,391 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 19:00:57,391 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 19:00:57,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 19:00:57,391 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 19:00:57,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 19:00:57,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 19:00:57,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 19:00:57,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 19:00:57,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 19:00:57,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 19:00:57,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 19:00:57,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 19:00:57,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 19:00:57,394 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 19:00:57,394 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 19:00:57,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 19:00:57,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 19:00:57,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 19:00:57,395 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-28 19:00:57,395 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c93cb68d7efd5264db4877f0cef6da4a9a585eb [2019-11-28 19:00:57,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 19:00:57,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 19:00:57,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 19:00:57,781 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 19:00:57,783 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 19:00:57,784 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 19:00:57,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c50675ea2/facd31eae73040d4be431c1bab2fc51e/FLAGc99935b52 [2019-11-28 19:00:58,545 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 19:00:58,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 19:00:58,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c50675ea2/facd31eae73040d4be431c1bab2fc51e/FLAGc99935b52 [2019-11-28 19:00:58,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c50675ea2/facd31eae73040d4be431c1bab2fc51e [2019-11-28 19:00:58,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 19:00:58,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 19:00:58,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 19:00:58,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 19:00:58,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 19:00:58,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:00:58" (1/1) ... [2019-11-28 19:00:58,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c8e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:00:58, skipping insertion in model container [2019-11-28 19:00:58,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:00:58" (1/1) ... [2019-11-28 19:00:58,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 19:00:58,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 19:01:00,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 19:01:00,206 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 19:01:00,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 19:01:00,638 INFO L208 MainTranslator]: Completed translation [2019-11-28 19:01:00,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00 WrapperNode [2019-11-28 19:01:00,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 19:01:00,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 19:01:00,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 19:01:00,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 19:01:00,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... [2019-11-28 19:01:00,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... [2019-11-28 19:01:00,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 19:01:00,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 19:01:00,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 19:01:00,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 19:01:00,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... [2019-11-28 19:01:00,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... [2019-11-28 19:01:00,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... [2019-11-28 19:01:00,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... [2019-11-28 19:01:00,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... [2019-11-28 19:01:00,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... [2019-11-28 19:01:00,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... [2019-11-28 19:01:01,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 19:01:01,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 19:01:01,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 19:01:01,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 19:01:01,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 19:01:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-11-28 19:01:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-28 19:01:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-11-28 19:01:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 19:01:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 19:01:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 19:01:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-28 19:01:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-11-28 19:01:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 19:01:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 19:01:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-28 19:01:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-11-28 19:01:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-11-28 19:01:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 19:01:01,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 19:01:02,446 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 19:01:02,446 INFO L287 CfgBuilder]: Removed 103 assume(true) statements. [2019-11-28 19:01:02,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:01:02 BoogieIcfgContainer [2019-11-28 19:01:02,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 19:01:02,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 19:01:02,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 19:01:02,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 19:01:02,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:00:58" (1/3) ... [2019-11-28 19:01:02,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f89cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:01:02, skipping insertion in model container [2019-11-28 19:01:02,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:01:00" (2/3) ... [2019-11-28 19:01:02,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f89cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:01:02, skipping insertion in model container [2019-11-28 19:01:02,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:01:02" (3/3) ... [2019-11-28 19:01:02,458 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-28 19:01:02,470 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 19:01:02,479 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 19:01:02,494 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 19:01:02,523 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 19:01:02,524 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 19:01:02,524 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 19:01:02,524 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 19:01:02,525 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 19:01:02,525 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 19:01:02,525 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 19:01:02,525 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 19:01:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-11-28 19:01:02,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 19:01:02,553 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 19:01:02,557 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 19:01:02,558 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 19:01:02,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 19:01:02,563 INFO L82 PathProgramCache]: Analyzing trace with hash -653167126, now seen corresponding path program 1 times [2019-11-28 19:01:02,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 19:01:02,575 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841524482] [2019-11-28 19:01:02,575 INFO L94 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 [2019-11-28 19:01:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 19:01:02,847 INFO L264 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 19:01:02,854 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 19:01:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 19:01:02,888 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 19:01:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 19:01:02,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841524482] [2019-11-28 19:01:02,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 19:01:02,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 19:01:02,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153284951] [2019-11-28 19:01:02,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 19:01:02,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 19:01:02,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 19:01:02,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 19:01:02,922 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-11-28 19:01:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 19:01:03,007 INFO L93 Difference]: Finished difference Result 223 states and 289 transitions. [2019-11-28 19:01:03,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 19:01:03,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-28 19:01:03,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 19:01:03,029 INFO L225 Difference]: With dead ends: 223 [2019-11-28 19:01:03,031 INFO L226 Difference]: Without dead ends: 140 [2019-11-28 19:01:03,041 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 19:01:03,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-28 19:01:03,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-28 19:01:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 19:01:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2019-11-28 19:01:03,144 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 178 transitions. Word has length 9 [2019-11-28 19:01:03,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 19:01:03,145 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 178 transitions. [2019-11-28 19:01:03,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 19:01:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 178 transitions. [2019-11-28 19:01:03,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-28 19:01:03,148 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 19:01:03,148 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 19:01:03,363 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 19:01:03,364 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 19:01:03,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 19:01:03,364 INFO L82 PathProgramCache]: Analyzing trace with hash -217429113, now seen corresponding path program 1 times [2019-11-28 19:01:03,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 19:01:03,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348560549] [2019-11-28 19:01:03,366 INFO L94 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 [2019-11-28 19:01:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 19:01:03,742 INFO L264 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 19:01:03,747 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 19:01:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 19:01:03,776 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 19:01:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 19:01:03,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348560549] [2019-11-28 19:01:03,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 19:01:03,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-28 19:01:03,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483852163] [2019-11-28 19:01:03,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 19:01:03,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 19:01:03,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 19:01:03,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 19:01:03,830 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand 6 states. [2019-11-28 19:01:03,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 19:01:03,893 INFO L93 Difference]: Finished difference Result 274 states and 349 transitions. [2019-11-28 19:01:03,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 19:01:03,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-11-28 19:01:03,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 19:01:03,896 INFO L225 Difference]: With dead ends: 274 [2019-11-28 19:01:03,897 INFO L226 Difference]: Without dead ends: 140 [2019-11-28 19:01:03,898 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 19:01:03,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-28 19:01:03,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-28 19:01:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 19:01:03,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2019-11-28 19:01:03,920 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 40 [2019-11-28 19:01:03,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 19:01:03,921 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2019-11-28 19:01:03,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 19:01:03,921 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2019-11-28 19:01:03,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-28 19:01:03,923 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 19:01:03,923 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 19:01:04,137 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 19:01:04,138 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 19:01:04,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 19:01:04,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1828149605, now seen corresponding path program 1 times [2019-11-28 19:01:04,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 19:01:04,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476677278] [2019-11-28 19:01:04,141 INFO L94 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 [2019-11-28 19:01:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 19:01:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 19:01:06,721 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 19:01:06,722 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 19:01:06,940 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 19:01:07,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,082 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-28 19:01:07,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-28 19:01:07,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:01:07 BoogieIcfgContainer [2019-11-28 19:01:07,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 19:01:07,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 19:01:07,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 19:01:07,163 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 19:01:07,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:01:02" (3/4) ... [2019-11-28 19:01:07,168 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 19:01:07,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 19:01:07,171 INFO L168 Benchmark]: Toolchain (without parser) took 8464.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.2 MB). Free memory was 956.1 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 77.3 MB. Max. memory is 11.5 GB. [2019-11-28 19:01:07,172 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 19:01:07,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1933.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 956.1 MB in the beginning and 976.2 MB in the end (delta: -20.2 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. [2019-11-28 19:01:07,174 INFO L168 Benchmark]: Boogie Procedure Inliner took 232.64 ms. Allocated memory is still 1.1 GB. Free memory is still 976.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 19:01:07,176 INFO L168 Benchmark]: Boogie Preprocessor took 135.47 ms. Allocated memory is still 1.1 GB. Free memory was 976.2 MB in the beginning and 969.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 19:01:07,178 INFO L168 Benchmark]: RCFGBuilder took 1438.44 ms. Allocated memory is still 1.1 GB. Free memory was 969.3 MB in the beginning and 887.2 MB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 11.5 GB. [2019-11-28 19:01:07,180 INFO L168 Benchmark]: TraceAbstraction took 4712.59 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 107.0 MB). Free memory was 887.2 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 19:01:07,186 INFO L168 Benchmark]: Witness Printer took 5.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 19:01:07,197 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1933.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 956.1 MB in the beginning and 976.2 MB in the end (delta: -20.2 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 232.64 ms. Allocated memory is still 1.1 GB. Free memory is still 976.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 135.47 ms. Allocated memory is still 1.1 GB. Free memory was 976.2 MB in the beginning and 969.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1438.44 ms. Allocated memory is still 1.1 GB. Free memory was 969.3 MB in the beginning and 887.2 MB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4712.59 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 107.0 MB). Free memory was 887.2 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 5.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!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!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!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4281]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4171. Possible FailurePath: [L3634] static int major ; [L3635] static int index ; [L3960-L3961] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4159-L4160] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4161-L4164] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4165-L4166] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4188] struct virtio_device_id const __mod_virtio_device_table ; [L4193] int LDV_IN_INTERRUPT ; [L4334] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4196] struct block_device *var_group1 ; [L4197] fmode_t var_virtblk_ioctl_5_p1 ; [L4198] unsigned int var_virtblk_ioctl_5_p2 ; [L4199] unsigned long var_virtblk_ioctl_5_p3 ; [L4200] struct hd_geometry *var_group2 ; [L4201] int tmp ; [L4202] int tmp___0 ; [L4203] int tmp___1 ; [L4205] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4517] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4521] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4215] tmp___0 = __VERIFIER_nondet_int() [L4217] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L3898] struct gendisk *disk ; [L3899] struct virtio_blk *vblk ; [L3900] void *usr_data ; [L3901] char id_str[20U] ; [L3902] int err ; [L3903] int tmp ; [L3904] bool tmp___0 ; [L3905] int tmp___1 ; [L3906] int tmp___2 ; [L3908] EXPR bdev->bd_disk [L3908] disk = bdev->bd_disk [L3909] EXPR disk->private_data [L3909] vblk = (struct virtio_blk *)disk->private_data [L3910] COND TRUE cmd == 1447184708U [L3911] usr_data = (void *)data [L3865] struct virtio_blk *vblk ; [L3866] struct request *req ; [L3867] struct bio *bio ; [L3868] long tmp ; [L3869] long tmp___0 ; [L3870] long tmp___1 ; [L3871] long tmp___2 ; [L3872] int tmp___3 ; [L3874] EXPR disk->private_data [L3874] vblk = (struct virtio_blk *)disk->private_data [L3875] EXPR vblk->disk [L3875] EXPR (vblk->disk)->queue [L3442] COND FALSE !(__VERIFIER_nondet_int()) [L3447] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4413] return ldv_malloc(sizeof(struct bio)); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L3876] tmp___0 = IS_ERR((void const *)bio) [L3877] COND FALSE !(tmp___0 != 0L) [L3882] EXPR vblk->disk [L3882] EXPR (vblk->disk)->queue [L4269] ldv_func_ret_type___3 ldv_func_res ; [L4270] struct request *tmp ; [L3442] COND FALSE !(__VERIFIER_nondet_int()) [L3447] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4429] return ldv_malloc(sizeof(struct request)); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4339] 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={-536870907:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4343] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4344] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L3882] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L3883] tmp___2 = IS_ERR((void const *)req) [L3884] COND FALSE !(tmp___2 != 0L) [L3890] req->cmd_type = 7 [L3891] EXPR vblk->disk [L3891] EXPR (vblk->disk)->queue [L3891] EXPR vblk->disk [L4423] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L3912] err = virtblk_get_id(disk, (char *)(& id_str)) [L3913] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4230] tmp___1 = __VERIFIER_nondet_int() [L4231] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4371] 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={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={-536870907:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={5:0}, virtio_blk={-2147483642:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 2 error locations. Result: UNSAFE, OverallTime: 4.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 214 SDtfs, 94 SDslu, 471 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred 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, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 3784 SizeOfPredicates, 4 NumberOfNonLiveVariables, 507 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...