./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/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_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d4e06acc8eacd70a3cd33c2659722f759867edfb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/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_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d4e06acc8eacd70a3cd33c2659722f759867edfb ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:48:27,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:48:27,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:48:27,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:48:27,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:48:27,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:48:27,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:48:27,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:48:27,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:48:27,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:48:27,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:48:27,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:48:27,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:48:27,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:48:27,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:48:27,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:48:27,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:48:27,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:48:27,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:48:27,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:48:27,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:48:27,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:48:27,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:48:27,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:48:27,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:48:27,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:48:27,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:48:27,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:48:27,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:48:27,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:48:27,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:48:27,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:48:27,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:48:27,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:48:27,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:48:27,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:48:27,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:48:27,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:48:27,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:48:27,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:48:27,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:48:27,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-15 21:48:27,637 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:48:27,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:48:27,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:48:27,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:48:27,639 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:48:27,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:48:27,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:48:27,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:48:27,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:48:27,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:48:27,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:48:27,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:48:27,640 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:48:27,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:48:27,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:48:27,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:48:27,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:48:27,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:48:27,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:48:27,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:48:27,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:48:27,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:48:27,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:48:27,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:48:27,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:48:27,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 21:48:27,644 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_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4e06acc8eacd70a3cd33c2659722f759867edfb [2019-11-15 21:48:27,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:48:27,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:48:27,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:48:27,683 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:48:27,683 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:48:27,684 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-15 21:48:27,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data/29592dc67/019e54e8d9f14e2399c52b63a2e3bbfc/FLAGbd2d75d07 [2019-11-15 21:48:28,409 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:48:28,414 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-15 21:48:28,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data/29592dc67/019e54e8d9f14e2399c52b63a2e3bbfc/FLAGbd2d75d07 [2019-11-15 21:48:28,751 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data/29592dc67/019e54e8d9f14e2399c52b63a2e3bbfc [2019-11-15 21:48:28,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:48:28,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:48:28,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:48:28,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:48:28,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:48:28,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:48:28" (1/1) ... [2019-11-15 21:48:28,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8d2505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:28, skipping insertion in model container [2019-11-15 21:48:28,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:48:28" (1/1) ... [2019-11-15 21:48:28,769 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:48:28,853 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:48:29,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:48:29,981 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:48:30,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:48:30,334 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:48:30,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30 WrapperNode [2019-11-15 21:48:30,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:48:30,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:48:30,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:48:30,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:48:30,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... [2019-11-15 21:48:30,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... [2019-11-15 21:48:30,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:48:30,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:48:30,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:48:30,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:48:30,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... [2019-11-15 21:48:30,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... [2019-11-15 21:48:30,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... [2019-11-15 21:48:30,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... [2019-11-15 21:48:30,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... [2019-11-15 21:48:30,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... [2019-11-15 21:48:30,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... [2019-11-15 21:48:30,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:48:30,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:48:30,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:48:30,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:48:30,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:48:30,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:48:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:48:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:48:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 21:48:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:48:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-15 21:48:30,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 21:48:30,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:48:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:48:31,388 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:48:31,389 INFO L284 CfgBuilder]: Removed 99 assume(true) statements. [2019-11-15 21:48:31,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:48:31 BoogieIcfgContainer [2019-11-15 21:48:31,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:48:31,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:48:31,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:48:31,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:48:31,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:48:28" (1/3) ... [2019-11-15 21:48:31,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e89c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:48:31, skipping insertion in model container [2019-11-15 21:48:31,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:30" (2/3) ... [2019-11-15 21:48:31,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e89c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:48:31, skipping insertion in model container [2019-11-15 21:48:31,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:48:31" (3/3) ... [2019-11-15 21:48:31,400 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-15 21:48:31,415 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:48:31,425 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-15 21:48:31,441 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-15 21:48:31,469 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:48:31,470 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:48:31,470 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:48:31,470 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:48:31,470 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:48:31,470 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:48:31,471 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:48:31,471 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:48:31,485 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-15 21:48:31,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 21:48:31,491 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:31,492 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:31,497 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:31,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:31,503 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-11-15 21:48:31,513 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:31,513 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952360562] [2019-11-15 21:48:31,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:31,514 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:31,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:48:31,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952360562] [2019-11-15 21:48:31,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:31,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:48:31,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085834477] [2019-11-15 21:48:31,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:48:31,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:48:31,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:48:31,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:48:31,807 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-11-15 21:48:31,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:31,878 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-11-15 21:48:31,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:48:31,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-15 21:48:31,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:31,896 INFO L225 Difference]: With dead ends: 211 [2019-11-15 21:48:31,897 INFO L226 Difference]: Without dead ends: 132 [2019-11-15 21:48:31,902 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:48:31,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-15 21:48:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-15 21:48:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-15 21:48:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-11-15 21:48:31,945 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-11-15 21:48:31,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:31,945 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-11-15 21:48:31,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:48:31,946 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-11-15 21:48:31,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-15 21:48:31,949 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:31,949 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:31,950 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:31,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:31,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-11-15 21:48:31,950 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:31,951 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218646502] [2019-11-15 21:48:31,951 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:31,951 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:31,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 21:48:32,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218646502] [2019-11-15 21:48:32,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:32,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 21:48:32,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867739380] [2019-11-15 21:48:32,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:48:32,175 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:48:32,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:48:32,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:48:32,175 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 4 states. [2019-11-15 21:48:32,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:32,216 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-11-15 21:48:32,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:48:32,217 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-11-15 21:48:32,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:32,219 INFO L225 Difference]: With dead ends: 258 [2019-11-15 21:48:32,220 INFO L226 Difference]: Without dead ends: 132 [2019-11-15 21:48:32,222 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:48:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-15 21:48:32,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-15 21:48:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-15 21:48:32,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-11-15 21:48:32,252 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-11-15 21:48:32,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:32,253 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-11-15 21:48:32,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:48:32,253 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-11-15 21:48:32,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-15 21:48:32,255 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:32,255 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:32,256 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:32,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:32,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-11-15 21:48:32,257 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:48:32,257 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677797058] [2019-11-15 21:48:32,258 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:32,258 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:48:32,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:48:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:48:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:48:32,942 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:48:32,942 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:48:33,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,028 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,036 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,037 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,037 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,038 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,045 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,045 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,049 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,058 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,058 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,058 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:33,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:33,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:48:33 BoogieIcfgContainer [2019-11-15 21:48:33,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:48:33,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:48:33,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:48:33,085 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:48:33,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:48:31" (3/4) ... [2019-11-15 21:48:33,088 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 21:48:33,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:48:33,090 INFO L168 Benchmark]: Toolchain (without parser) took 4334.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 938.0 MB in the beginning and 998.8 MB in the end (delta: -60.8 MB). Peak memory consumption was 78.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:33,091 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:48:33,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1580.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -90.4 MB). Peak memory consumption was 62.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:33,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:33,093 INFO L168 Benchmark]: Boogie Preprocessor took 55.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:33,094 INFO L168 Benchmark]: RCFGBuilder took 886.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 941.5 MB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:33,094 INFO L168 Benchmark]: TraceAbstraction took 1691.11 ms. Allocated memory is still 1.2 GB. Free memory was 941.5 MB in the beginning and 998.8 MB in the end (delta: -57.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:48:33,094 INFO L168 Benchmark]: Witness Printer took 3.49 ms. Allocated memory is still 1.2 GB. Free memory is still 998.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:48:33,105 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1580.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -90.4 MB). Peak memory consumption was 62.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 113.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 886.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 941.5 MB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1691.11 ms. Allocated memory is still 1.2 GB. Free memory was 941.5 MB in the beginning and 998.8 MB in the end (delta: -57.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.49 ms. Allocated memory is still 1.2 GB. Free memory is still 998.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device * 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={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [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={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4524] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4528] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [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={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4215] tmp___0 = __VERIFIER_nondet_int() [L4217] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3898] struct gendisk *disk ; [L3899] struct virtio_blk *vblk ; [L3900] void *usr_data ; [L3901] char id_str[20U] ; [L3902] int err ; [L3903] int tmp ; [L3904] bool tmp___0 ; [L3905] int tmp___1 ; [L3906] int tmp___2 ; [L3908] EXPR bdev->bd_disk [L3908] disk = bdev->bd_disk [L3909] EXPR disk->private_data [L3909] vblk = (struct virtio_blk *)disk->private_data [L3910] COND TRUE cmd == 1447184708U [L3911] usr_data = (void *)data [L3865] struct virtio_blk *vblk ; [L3866] struct request *req ; [L3867] struct bio *bio ; [L3868] long tmp ; [L3869] long tmp___0 ; [L3870] long tmp___1 ; [L3871] long tmp___2 ; [L3872] int tmp___3 ; [L3874] EXPR disk->private_data [L3874] vblk = (struct virtio_blk *)disk->private_data [L3875] EXPR vblk->disk [L3875] EXPR (vblk->disk)->queue [L4562] return __VERIFIER_nondet_pointer(); [L4415] return (struct bio *)external_alloc(); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3876] tmp___0 = IS_ERR((void const *)bio) [L3877] COND FALSE !(tmp___0 != 0L) [L3882] EXPR vblk->disk [L3882] EXPR (vblk->disk)->queue [L4269] ldv_func_ret_type___3 ldv_func_res ; [L4270] struct request *tmp ; [L4562] return __VERIFIER_nondet_pointer(); [L4433] return (struct request *)external_alloc(); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [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={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [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={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4262] tmp = ldv_is_err(ptr) [L4263] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3883] tmp___2 = IS_ERR((void const *)req) [L3884] COND FALSE !(tmp___2 != 0L) [L3890] req->cmd_type = 7 [L3891] EXPR vblk->disk [L3891] EXPR (vblk->disk)->queue [L3891] EXPR vblk->disk [L4425] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [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={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [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={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551622}, features={8:0}, id_table={18:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={7:0}, virtio_blk={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 88 SDslu, 258 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1841 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 21:48:35,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:48:35,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:48:35,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:48:35,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:48:35,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:48:35,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:48:35,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:48:35,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:48:35,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:48:35,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:48:35,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:48:35,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:48:35,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:48:35,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:48:35,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:48:35,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:48:35,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:48:35,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:48:35,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:48:35,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:48:35,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:48:35,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:48:35,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:48:35,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:48:35,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:48:35,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:48:35,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:48:35,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:48:35,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:48:35,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:48:35,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:48:35,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:48:35,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:48:35,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:48:35,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:48:35,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:48:35,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:48:35,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:48:35,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:48:35,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:48:35,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-15 21:48:35,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:48:35,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:48:35,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:48:35,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:48:35,237 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:48:35,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:48:35,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:48:35,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:48:35,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:48:35,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:48:35,238 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 21:48:35,238 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 21:48:35,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:48:35,239 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:48:35,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:48:35,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:48:35,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:48:35,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:48:35,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:48:35,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:48:35,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:48:35,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:48:35,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:48:35,241 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 21:48:35,241 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 21:48:35,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:48:35,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 21:48:35,242 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-15 21:48:35,242 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_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4e06acc8eacd70a3cd33c2659722f759867edfb [2019-11-15 21:48:35,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:48:35,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:48:35,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:48:35,287 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:48:35,289 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:48:35,292 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-15 21:48:35,347 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data/26e7497eb/17d29d3792874d9a972a1c4b8cf6a048/FLAGdda068d82 [2019-11-15 21:48:36,007 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:48:36,008 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-15 21:48:36,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data/26e7497eb/17d29d3792874d9a972a1c4b8cf6a048/FLAGdda068d82 [2019-11-15 21:48:36,359 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/data/26e7497eb/17d29d3792874d9a972a1c4b8cf6a048 [2019-11-15 21:48:36,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:48:36,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:48:36,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:48:36,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:48:36,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:48:36,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:36,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757040a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:36, skipping insertion in model container [2019-11-15 21:48:36,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:48:36" (1/1) ... [2019-11-15 21:48:36,376 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:48:36,465 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:48:37,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:48:37,646 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:48:37,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:48:38,041 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:48:38,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38 WrapperNode [2019-11-15 21:48:38,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:48:38,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:48:38,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:48:38,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:48:38,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... [2019-11-15 21:48:38,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... [2019-11-15 21:48:38,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:48:38,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:48:38,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:48:38,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:48:38,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... [2019-11-15 21:48:38,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... [2019-11-15 21:48:38,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... [2019-11-15 21:48:38,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... [2019-11-15 21:48:38,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... [2019-11-15 21:48:38,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... [2019-11-15 21:48:38,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... [2019-11-15 21:48:38,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:48:38,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:48:38,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:48:38,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:48:38,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:48:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-11-15 21:48:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-15 21:48:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-11-15 21:48:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:48:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 21:48:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-15 21:48:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-11-15 21:48:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:48:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 21:48:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-15 21:48:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-11-15 21:48:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-11-15 21:48:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:48:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:48:39,456 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:48:39,456 INFO L284 CfgBuilder]: Removed 99 assume(true) statements. [2019-11-15 21:48:39,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:48:39 BoogieIcfgContainer [2019-11-15 21:48:39,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:48:39,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:48:39,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:48:39,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:48:39,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:48:36" (1/3) ... [2019-11-15 21:48:39,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282d9525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:48:39, skipping insertion in model container [2019-11-15 21:48:39,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:48:38" (2/3) ... [2019-11-15 21:48:39,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282d9525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:48:39, skipping insertion in model container [2019-11-15 21:48:39,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:48:39" (3/3) ... [2019-11-15 21:48:39,465 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2019-11-15 21:48:39,474 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:48:39,481 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-15 21:48:39,492 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-15 21:48:39,513 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:48:39,514 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:48:39,514 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:48:39,514 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:48:39,514 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:48:39,514 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:48:39,515 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:48:39,515 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:48:39,533 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-15 21:48:39,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 21:48:39,538 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:39,539 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:39,541 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:39,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:39,546 INFO L82 PathProgramCache]: Analyzing trace with hash -653167574, now seen corresponding path program 1 times [2019-11-15 21:48:39,558 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:48:39,558 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1001320176] [2019-11-15 21:48:39,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 21:48:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:39,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:48:39,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:48:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:48:39,863 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 21:48:39,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:48:39,867 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1001320176] [2019-11-15 21:48:39,868 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:39,868 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 21:48:39,869 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443086359] [2019-11-15 21:48:39,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:48:39,873 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 21:48:39,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:48:39,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:48:39,887 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-11-15 21:48:39,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:39,945 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2019-11-15 21:48:39,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:48:39,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-15 21:48:39,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:39,958 INFO L225 Difference]: With dead ends: 211 [2019-11-15 21:48:39,958 INFO L226 Difference]: Without dead ends: 132 [2019-11-15 21:48:39,961 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:48:39,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-15 21:48:40,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-15 21:48:40,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-15 21:48:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2019-11-15 21:48:40,006 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 9 [2019-11-15 21:48:40,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:40,007 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2019-11-15 21:48:40,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:48:40,007 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2019-11-15 21:48:40,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-15 21:48:40,009 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:40,009 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:40,220 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 21:48:40,221 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:40,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:40,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1281977442, now seen corresponding path program 1 times [2019-11-15 21:48:40,222 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:48:40,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [895012536] [2019-11-15 21:48:40,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 21:48:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:48:40,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:48:40,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:48:40,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 21:48:40,828 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 21:48:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 21:48:40,856 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [895012536] [2019-11-15 21:48:40,856 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:48:40,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 21:48:40,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507505215] [2019-11-15 21:48:40,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:48:40,858 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 21:48:40,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:48:40,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:48:40,859 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand 6 states. [2019-11-15 21:48:40,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:48:40,968 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2019-11-15 21:48:40,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:48:40,969 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-11-15 21:48:40,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:48:40,970 INFO L225 Difference]: With dead ends: 258 [2019-11-15 21:48:40,971 INFO L226 Difference]: Without dead ends: 132 [2019-11-15 21:48:40,973 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:48:40,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-15 21:48:40,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-11-15 21:48:40,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-15 21:48:41,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-11-15 21:48:41,001 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 38 [2019-11-15 21:48:41,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:48:41,002 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-11-15 21:48:41,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:48:41,004 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-11-15 21:48:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-15 21:48:41,006 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:48:41,006 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:48:41,211 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 21:48:41,212 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:48:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:48:41,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1218684480, now seen corresponding path program 1 times [2019-11-15 21:48:41,213 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:48:41,213 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [360895145] [2019-11-15 21:48:41,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f1f895-ea9c-4d2e-8ee4-13b0491d5658/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 21:48:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:48:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:48:44,893 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-15 21:48:44,893 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:48:45,094 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 21:48:45,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2019-11-15 21:48:45,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2019-11-15 21:48:45,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:48:45 BoogieIcfgContainer [2019-11-15 21:48:45,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:48:45,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:48:45,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:48:45,222 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:48:45,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:48:39" (3/4) ... [2019-11-15 21:48:45,226 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 21:48:45,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:48:45,228 INFO L168 Benchmark]: Toolchain (without parser) took 8864.92 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 253.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 76.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:45,229 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:48:45,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1678.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -118.1 MB). Peak memory consumption was 75.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:45,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:45,231 INFO L168 Benchmark]: Boogie Preprocessor took 88.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:45,232 INFO L168 Benchmark]: RCFGBuilder took 1174.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.0 MB in the end (delta: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:48:45,233 INFO L168 Benchmark]: TraceAbstraction took 5762.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.4 MB). Free memory was 968.5 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:48:45,237 INFO L168 Benchmark]: Witness Printer took 4.14 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:48:45,242 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1678.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -118.1 MB). Peak memory consumption was 75.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 151.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1174.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.0 MB in the end (delta: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5762.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.4 MB). Free memory was 968.5 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 4.14 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!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 * 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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4169] int tmp ; [L4171] CALL, EXPR register_blkdev(0U, "virtblk") [L4524] return __VERIFIER_nondet_int(); [L4171] major = register_blkdev(0U, "virtblk") [L4172] COND FALSE !(major < 0) [L4528] return __VERIFIER_nondet_int(); [L4176] tmp = register_virtio_driver(& virtio_blk) [L4177] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4208] tmp = init() [L4209] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3898] struct gendisk *disk ; [L3899] struct virtio_blk *vblk ; [L3900] void *usr_data ; [L3901] char id_str[20U] ; [L3902] int err ; [L3903] int tmp ; [L3904] bool tmp___0 ; [L3905] int tmp___1 ; [L3906] int tmp___2 ; [L3908] EXPR bdev->bd_disk [L3908] disk = bdev->bd_disk [L3909] EXPR disk->private_data [L3909] vblk = (struct virtio_blk *)disk->private_data [L3910] COND TRUE cmd == 1447184708U [L3911] usr_data = (void *)data [L3865] struct virtio_blk *vblk ; [L3866] struct request *req ; [L3867] struct bio *bio ; [L3868] long tmp ; [L3869] long tmp___0 ; [L3870] long tmp___1 ; [L3871] long tmp___2 ; [L3872] int tmp___3 ; [L3874] EXPR disk->private_data [L3874] vblk = (struct virtio_blk *)disk->private_data [L3875] EXPR vblk->disk [L3875] EXPR (vblk->disk)->queue [L4562] return __VERIFIER_nondet_pointer(); [L4415] return (struct bio *)external_alloc(); [L3875] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4260] long tmp ; [L4293] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3876] tmp___0 = IS_ERR((void const *)bio) [L3877] COND FALSE !(tmp___0 != 0L) [L3882] EXPR vblk->disk [L3882] EXPR (vblk->disk)->queue [L4269] ldv_func_ret_type___3 ldv_func_res ; [L4270] struct request *tmp ; [L4562] return __VERIFIER_nondet_pointer(); [L4433] return (struct request *)external_alloc(); [L4272] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4273] ldv_func_res = tmp [L4337] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4339] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4275] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3883] tmp___2 = IS_ERR((void const *)req) [L3884] COND FALSE !(tmp___2 != 0L) [L3890] req->cmd_type = 7 [L3891] EXPR vblk->disk [L3891] EXPR (vblk->disk)->queue [L3891] EXPR vblk->disk [L4425] return __VERIFIER_nondet_int(); [L3891] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3892] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L3921] return (err); [L3921] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [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={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4371] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] [L4281] __VERIFIER_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={1049:0}, id_table={-2147482599:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147449829:0}, virtio_blk={1073742873:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 2 error locations. Result: UNSAFE, OverallTime: 5.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 89 SDslu, 258 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3460 SizeOfPredicates, 4 NumberOfNonLiveVariables, 495 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...