./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/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4c93cb68d7efd5264db4877f0cef6da4a9a585eb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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 [2019-12-07 12:54:11,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:54:11,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:54:11,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:54:11,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:54:11,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:54:11,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:54:11,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:54:11,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:54:11,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:54:11,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:54:11,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:54:11,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:54:11,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:54:11,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:54:11,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:54:11,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:54:11,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:54:11,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:54:11,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:54:11,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:54:11,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:54:11,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:54:11,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:54:11,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:54:11,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:54:11,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:54:11,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:54:11,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:54:11,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:54:11,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:54:11,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:54:11,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:54:11,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:54:11,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:54:11,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:54:11,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:54:11,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:54:11,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:54:11,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:54:11,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:54:11,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-12-07 12:54:11,611 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:54:11,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:54:11,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:54:11,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:54:11,612 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:54:11,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:54:11,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:54:11,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:54:11,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:54:11,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:54:11,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:54:11,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:54:11,613 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:54:11,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:54:11,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:54:11,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:54:11,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:54:11,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:54:11,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:54:11,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:54:11,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:54:11,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:54:11,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:54:11,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:54:11,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:54:11,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:54:11,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:54:11,615 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c93cb68d7efd5264db4877f0cef6da4a9a585eb [2019-12-07 12:54:11,713 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:54:11,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:54:11,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:54:11,728 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:54:11,729 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:54:11,729 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-12-07 12:54:11,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data/a51f2be1a/be97979ddc88440795eb839c835dae17/FLAG3493c9a59 [2019-12-07 12:54:12,278 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:54:12,279 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-12-07 12:54:12,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data/a51f2be1a/be97979ddc88440795eb839c835dae17/FLAG3493c9a59 [2019-12-07 12:54:12,574 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data/a51f2be1a/be97979ddc88440795eb839c835dae17 [2019-12-07 12:54:12,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:54:12,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:54:12,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:54:12,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:54:12,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:54:12,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:54:12" (1/1) ... [2019-12-07 12:54:12,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c9f5482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:12, skipping insertion in model container [2019-12-07 12:54:12,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:54:12" (1/1) ... [2019-12-07 12:54:12,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:54:12,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:54:13,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:54:13,250 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:54:13,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:54:13,428 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:54:13,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13 WrapperNode [2019-12-07 12:54:13,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:54:13,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:54:13,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:54:13,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:54:13,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... [2019-12-07 12:54:13,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... [2019-12-07 12:54:13,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:54:13,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:54:13,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:54:13,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:54:13,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... [2019-12-07 12:54:13,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... [2019-12-07 12:54:13,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... [2019-12-07 12:54:13,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... [2019-12-07 12:54:13,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... [2019-12-07 12:54:13,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... [2019-12-07 12:54:13,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... [2019-12-07 12:54:13,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:54:13,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:54:13,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:54:13,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:54:13,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:54:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:54:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:54:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 12:54:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:54:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 12:54:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:54:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 12:54:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 12:54:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:54:13,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:54:14,122 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:54:14,122 INFO L287 CfgBuilder]: Removed 103 assume(true) statements. [2019-12-07 12:54:14,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:54:14 BoogieIcfgContainer [2019-12-07 12:54:14,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:54:14,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:54:14,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:54:14,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:54:14,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:54:12" (1/3) ... [2019-12-07 12:54:14,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a701d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:54:14, skipping insertion in model container [2019-12-07 12:54:14,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:13" (2/3) ... [2019-12-07 12:54:14,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a701d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:54:14, skipping insertion in model container [2019-12-07 12:54:14,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:54:14" (3/3) ... [2019-12-07 12:54:14,129 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-12-07 12:54:14,135 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:54:14,141 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 12:54:14,148 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 12:54:14,165 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:54:14,165 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:54:14,165 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:54:14,165 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:54:14,166 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:54:14,166 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:54:14,166 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:54:14,166 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:54:14,177 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-12-07 12:54:14,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:54:14,181 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:14,182 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:54:14,182 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:54:14,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:14,186 INFO L82 PathProgramCache]: Analyzing trace with hash -653167126, now seen corresponding path program 1 times [2019-12-07 12:54:14,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:54:14,192 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077901801] [2019-12-07 12:54:14,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:54:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:54:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:54:14,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077901801] [2019-12-07 12:54:14,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:54:14,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:54:14,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232696129] [2019-12-07 12:54:14,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:54:14,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:54:14,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:54:14,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:54:14,388 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-12-07 12:54:14,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:54:14,428 INFO L93 Difference]: Finished difference Result 223 states and 289 transitions. [2019-12-07 12:54:14,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:54:14,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-07 12:54:14,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:54:14,438 INFO L225 Difference]: With dead ends: 223 [2019-12-07 12:54:14,438 INFO L226 Difference]: Without dead ends: 140 [2019-12-07 12:54:14,441 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 [2019-12-07 12:54:14,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-12-07 12:54:14,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-12-07 12:54:14,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 12:54:14,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2019-12-07 12:54:14,476 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 178 transitions. Word has length 9 [2019-12-07 12:54:14,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:54:14,476 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 178 transitions. [2019-12-07 12:54:14,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:54:14,476 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 178 transitions. [2019-12-07 12:54:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 12:54:14,478 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:14,478 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] [2019-12-07 12:54:14,478 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:54:14,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:14,479 INFO L82 PathProgramCache]: Analyzing trace with hash -217429113, now seen corresponding path program 1 times [2019-12-07 12:54:14,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:54:14,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994317719] [2019-12-07 12:54:14,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:54:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:54:14,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 12:54:14,589 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994317719] [2019-12-07 12:54:14,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:54:14,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:54:14,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271107518] [2019-12-07 12:54:14,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:54:14,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:54:14,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:54:14,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:54:14,592 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand 4 states. [2019-12-07 12:54:14,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:54:14,624 INFO L93 Difference]: Finished difference Result 274 states and 349 transitions. [2019-12-07 12:54:14,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:54:14,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2019-12-07 12:54:14,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:54:14,627 INFO L225 Difference]: With dead ends: 274 [2019-12-07 12:54:14,627 INFO L226 Difference]: Without dead ends: 140 [2019-12-07 12:54:14,628 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 [2019-12-07 12:54:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-12-07 12:54:14,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-12-07 12:54:14,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 12:54:14,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2019-12-07 12:54:14,643 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 40 [2019-12-07 12:54:14,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:54:14,643 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2019-12-07 12:54:14,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:54:14,643 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2019-12-07 12:54:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 12:54:14,645 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:14,645 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] [2019-12-07 12:54:14,646 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:54:14,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:14,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1828149605, now seen corresponding path program 1 times [2019-12-07 12:54:14,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:54:14,647 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725636432] [2019-12-07 12:54:14,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:54:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:54:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:54:14,833 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:54:14,833 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:54:14,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:14,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:14,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:54:14 BoogieIcfgContainer [2019-12-07 12:54:14,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:54:14,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:54:14,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:54:14,915 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:54:14,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:54:14" (3/4) ... [2019-12-07 12:54:14,918 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:54:14,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:54:14,920 INFO L168 Benchmark]: Toolchain (without parser) took 2338.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 935.3 MB in the beginning and 1.0 GB in the end (delta: -95.7 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:14,920 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:14,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 845.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 935.3 MB in the beginning and 992.3 MB in the end (delta: -57.0 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:14,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.96 ms. Allocated memory is still 1.1 GB. Free memory was 992.3 MB in the beginning and 986.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:14,921 INFO L168 Benchmark]: Boogie Preprocessor took 40.08 ms. Allocated memory is still 1.1 GB. Free memory was 986.9 MB in the beginning and 981.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:14,922 INFO L168 Benchmark]: RCFGBuilder took 584.96 ms. Allocated memory is still 1.1 GB. Free memory was 981.6 MB in the beginning and 894.7 MB in the end (delta: 86.9 MB). Peak memory consumption was 86.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:14,922 INFO L168 Benchmark]: TraceAbstraction took 790.70 ms. Allocated memory is still 1.1 GB. Free memory was 894.7 MB in the beginning and 1.0 GB in the end (delta: -136.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:14,922 INFO L168 Benchmark]: Witness Printer took 3.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:14,925 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 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 845.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 935.3 MB in the beginning and 992.3 MB in the end (delta: -57.0 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.96 ms. Allocated memory is still 1.1 GB. Free memory was 992.3 MB in the beginning and 986.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.08 ms. Allocated memory is still 1.1 GB. Free memory was 986.9 MB in the beginning and 981.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 584.96 ms. Allocated memory is still 1.1 GB. Free memory was 981.6 MB in the beginning and 894.7 MB in the end (delta: 86.9 MB). Peak memory consumption was 86.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 790.70 ms. Allocated memory is still 1.1 GB. Free memory was 894.7 MB in the beginning and 1.0 GB in the end (delta: -136.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - 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!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor * 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: 0.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s 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 [2019-12-07 12:54:16,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:54:16,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:54:16,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:54:16,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:54:16,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:54:16,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:54:16,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:54:16,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:54:16,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:54:16,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:54:16,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:54:16,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:54:16,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:54:16,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:54:16,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:54:16,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:54:16,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:54:16,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:54:16,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:54:16,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:54:16,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:54:16,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:54:16,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:54:16,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:54:16,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:54:16,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:54:16,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:54:16,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:54:16,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:54:16,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:54:16,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:54:16,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:54:16,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:54:16,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:54:16,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:54:16,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:54:16,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:54:16,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:54:16,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:54:16,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:54:16,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-12-07 12:54:16,396 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:54:16,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:54:16,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:54:16,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:54:16,397 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:54:16,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:54:16,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:54:16,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:54:16,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:54:16,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:54:16,398 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:54:16,398 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:54:16,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:54:16,399 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:54:16,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:54:16,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:54:16,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:54:16,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:54:16,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:54:16,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:54:16,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:54:16,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:54:16,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:54:16,400 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:54:16,400 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:54:16,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:54:16,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:54:16,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:54:16,401 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-12-07 12:54:16,401 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c93cb68d7efd5264db4877f0cef6da4a9a585eb [2019-12-07 12:54:16,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:54:16,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:54:16,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:54:16,602 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:54:16,602 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:54:16,602 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-12-07 12:54:16,639 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data/01f4c017f/615d8c9ea0fa4cd9a848456d086a110c/FLAG038f0795f [2019-12-07 12:54:17,233 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:54:17,233 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-12-07 12:54:17,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data/01f4c017f/615d8c9ea0fa4cd9a848456d086a110c/FLAG038f0795f [2019-12-07 12:54:17,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/data/01f4c017f/615d8c9ea0fa4cd9a848456d086a110c [2019-12-07 12:54:17,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:54:17,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:54:17,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:54:17,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:54:17,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:54:17,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:54:17" (1/1) ... [2019-12-07 12:54:17,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f0c2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:17, skipping insertion in model container [2019-12-07 12:54:17,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:54:17" (1/1) ... [2019-12-07 12:54:17,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:54:17,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:54:18,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:54:18,395 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:54:18,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:54:18,634 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:54:18,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18 WrapperNode [2019-12-07 12:54:18,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:54:18,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:54:18,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:54:18,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:54:18,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... [2019-12-07 12:54:18,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... [2019-12-07 12:54:18,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:54:18,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:54:18,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:54:18,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:54:18,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... [2019-12-07 12:54:18,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... [2019-12-07 12:54:18,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... [2019-12-07 12:54:18,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... [2019-12-07 12:54:18,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... [2019-12-07 12:54:18,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... [2019-12-07 12:54:18,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... [2019-12-07 12:54:18,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:54:18,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:54:18,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:54:18,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:54:18,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:54:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-12-07 12:54:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 12:54:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 12:54:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-12-07 12:54:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:54:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:54:19,558 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:54:19,559 INFO L287 CfgBuilder]: Removed 103 assume(true) statements. [2019-12-07 12:54:19,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:54:19 BoogieIcfgContainer [2019-12-07 12:54:19,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:54:19,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:54:19,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:54:19,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:54:19,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:54:17" (1/3) ... [2019-12-07 12:54:19,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eac056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:54:19, skipping insertion in model container [2019-12-07 12:54:19,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:18" (2/3) ... [2019-12-07 12:54:19,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eac056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:54:19, skipping insertion in model container [2019-12-07 12:54:19,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:54:19" (3/3) ... [2019-12-07 12:54:19,565 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-12-07 12:54:19,572 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:54:19,577 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 12:54:19,585 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 12:54:19,602 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:54:19,602 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:54:19,602 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:54:19,602 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:54:19,602 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:54:19,603 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:54:19,603 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:54:19,603 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:54:19,613 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-12-07 12:54:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:54:19,617 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:19,617 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:54:19,618 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:54:19,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:19,622 INFO L82 PathProgramCache]: Analyzing trace with hash -653167126, now seen corresponding path program 1 times [2019-12-07 12:54:19,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:54:19,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301363994] [2019-12-07 12:54:19,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/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 [2019-12-07 12:54:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:54:19,786 INFO L264 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:54:19,790 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:54:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:54:19,808 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:54:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:54:19,812 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301363994] [2019-12-07 12:54:19,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:54:19,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:54:19,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978447718] [2019-12-07 12:54:19,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:54:19,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:54:19,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:54:19,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:54:19,827 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-12-07 12:54:19,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:54:19,870 INFO L93 Difference]: Finished difference Result 223 states and 289 transitions. [2019-12-07 12:54:19,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:54:19,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-07 12:54:19,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:54:19,883 INFO L225 Difference]: With dead ends: 223 [2019-12-07 12:54:19,883 INFO L226 Difference]: Without dead ends: 140 [2019-12-07 12:54:19,886 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 [2019-12-07 12:54:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-12-07 12:54:19,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-12-07 12:54:19,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 12:54:19,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2019-12-07 12:54:19,922 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 178 transitions. Word has length 9 [2019-12-07 12:54:19,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:54:19,923 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 178 transitions. [2019-12-07 12:54:19,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:54:19,923 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 178 transitions. [2019-12-07 12:54:19,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 12:54:19,924 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:19,924 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] [2019-12-07 12:54:20,125 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:54:20,126 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:54:20,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:20,126 INFO L82 PathProgramCache]: Analyzing trace with hash -217429113, now seen corresponding path program 1 times [2019-12-07 12:54:20,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:54:20,128 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901344412] [2019-12-07 12:54:20,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/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 [2019-12-07 12:54:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:54:20,520 INFO L264 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:54:20,523 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:54:20,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 12:54:20,540 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:54:20,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 12:54:20,559 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901344412] [2019-12-07 12:54:20,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:54:20,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 12:54:20,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260547600] [2019-12-07 12:54:20,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:54:20,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:54:20,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:54:20,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:54:20,562 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand 6 states. [2019-12-07 12:54:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:54:20,598 INFO L93 Difference]: Finished difference Result 274 states and 349 transitions. [2019-12-07 12:54:20,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:54:20,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-12-07 12:54:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:54:20,600 INFO L225 Difference]: With dead ends: 274 [2019-12-07 12:54:20,600 INFO L226 Difference]: Without dead ends: 140 [2019-12-07 12:54:20,601 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 [2019-12-07 12:54:20,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-12-07 12:54:20,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-12-07 12:54:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 12:54:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2019-12-07 12:54:20,612 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 40 [2019-12-07 12:54:20,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:54:20,612 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2019-12-07 12:54:20,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:54:20,613 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2019-12-07 12:54:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 12:54:20,614 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:20,614 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] [2019-12-07 12:54:20,814 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:54:20,815 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:54:20,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:20,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1828149605, now seen corresponding path program 1 times [2019-12-07 12:54:20,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:54:20,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000689964] [2019-12-07 12:54:20,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75ab0c57-e01e-4c09-9ac4-993a6c4f6a8e/bin/uautomizer/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 [2019-12-07 12:54:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:54:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:54:22,624 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 12:54:22,624 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:54:22,825 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:54:22,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,918 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,929 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,929 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,929 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,930 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,930 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,930 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,930 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,931 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,931 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,931 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,931 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-12-07 12:54:22,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-12-07 12:54:22,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:54:22 BoogieIcfgContainer [2019-12-07 12:54:22,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:54:22,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:54:22,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:54:22,941 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:54:22,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:54:19" (3/4) ... [2019-12-07 12:54:22,944 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:54:22,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:54:22,945 INFO L168 Benchmark]: Toolchain (without parser) took 5301.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -135.3 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:22,946 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:22,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 987.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 947.0 MB in the beginning and 975.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 81.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:22,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.62 ms. Allocated memory is still 1.1 GB. Free memory is still 975.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:22,947 INFO L168 Benchmark]: Boogie Preprocessor took 54.35 ms. Allocated memory is still 1.1 GB. Free memory was 975.1 MB in the beginning and 968.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:22,947 INFO L168 Benchmark]: RCFGBuilder took 786.32 ms. Allocated memory is still 1.1 GB. Free memory was 968.3 MB in the beginning and 882.3 MB in the end (delta: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:22,948 INFO L168 Benchmark]: TraceAbstraction took 3380.30 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 102.8 MB). Free memory was 882.3 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:22,948 INFO L168 Benchmark]: Witness Printer took 3.05 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. [2019-12-07 12:54:22,950 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 987.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 947.0 MB in the beginning and 975.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 81.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.62 ms. Allocated memory is still 1.1 GB. Free memory is still 975.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.35 ms. Allocated memory is still 1.1 GB. Free memory was 975.1 MB in the beginning and 968.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 786.32 ms. Allocated memory is still 1.1 GB. Free memory was 968.3 MB in the beginning and 882.3 MB in the end (delta: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3380.30 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 102.8 MB). Free memory was 882.3 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.05 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!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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={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: 3.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, 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, 0.9s SatisfiabilityAnalysisTime, 0.0s 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...