./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-linux-3.0/module_get_put-drivers-isdn-mISDN-mISDN_core.ko_false-unreach-call-test.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-linux-3.0/module_get_put-drivers-isdn-mISDN-mISDN_core.ko_false-unreach-call-test.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a3c7ae500c773108a2e5413a448ecabd12bfb168 ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 20:46:10,544 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:46:10,546 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:46:10,564 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:46:10,565 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:46:10,567 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:46:10,568 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:46:10,571 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:46:10,573 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:46:10,575 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:46:10,578 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:46:10,579 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:46:10,581 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:46:10,583 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:46:10,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:46:10,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:46:10,595 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:46:10,597 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:46:10,602 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:46:10,604 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:46:10,606 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:46:10,609 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:46:10,615 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:46:10,616 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:46:10,617 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:46:10,617 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:46:10,619 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:46:10,620 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:46:10,621 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:46:10,625 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:46:10,625 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:46:10,626 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:46:10,626 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:46:10,626 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:46:10,629 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:46:10,631 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:46:10,633 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-28 20:46:10,661 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:46:10,662 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:46:10,662 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:46:10,663 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:46:10,663 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:46:10,663 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:46:10,664 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:46:10,664 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:46:10,664 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:46:10,664 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:46:10,664 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:46:10,664 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:46:10,671 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:46:10,672 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:46:10,672 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:46:10,673 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:46:10,674 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:46:10,674 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:46:10,674 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:46:10,674 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:46:10,675 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:46:10,675 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:46:10,675 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:46:10,675 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:46:10,675 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:46:10,676 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:46:10,677 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:46:10,677 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-28 20:46:10,678 INFO L133 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c7ae500c773108a2e5413a448ecabd12bfb168 [2018-11-28 20:46:10,743 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:46:10,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:46:10,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:46:10,764 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:46:10,765 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:46:10,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-linux-3.0/module_get_put-drivers-isdn-mISDN-mISDN_core.ko_false-unreach-call-test.cil.out.i [2018-11-28 20:46:10,825 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f50633b6c/455ed708ae4b4e678ac4ab1a6d8d91eb/FLAG193d5205b [2018-11-28 20:46:11,235 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:46:11,236 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-linux-3.0/module_get_put-drivers-isdn-mISDN-mISDN_core.ko_false-unreach-call-test.cil.out.i [2018-11-28 20:46:11,242 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f50633b6c/455ed708ae4b4e678ac4ab1a6d8d91eb/FLAG193d5205b [2018-11-28 20:46:11,602 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f50633b6c/455ed708ae4b4e678ac4ab1a6d8d91eb [2018-11-28 20:46:11,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:46:11,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:46:11,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:46:11,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:46:11,613 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:46:11,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:11,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e84b87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11, skipping insertion in model container [2018-11-28 20:46:11,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:11,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:46:11,648 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:46:11,880 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:46:11,898 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:46:11,933 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:46:11,956 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:46:11,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11 WrapperNode [2018-11-28 20:46:11,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:46:11,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:46:11,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:46:11,958 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:46:11,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:11,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:11,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:46:11,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:46:11,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:46:11,985 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:46:11,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:11,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:11,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:11,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:12,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:12,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:12,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... [2018-11-28 20:46:12,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:46:12,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:46:12,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:46:12,011 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:46:12,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:46:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 20:46:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_read [2018-11-28 20:46:12,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_read [2018-11-28 20:46:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2018-11-28 20:46:12,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2018-11-28 20:46:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 20:46:12,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 20:46:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 20:46:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_open [2018-11-28 20:46:12,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_open [2018-11-28 20:46:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 20:46:12,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 20:46:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_external_alloc [2018-11-28 20:46:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:46:12,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:46:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2018-11-28 20:46:12,143 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2018-11-28 20:46:12,532 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:46:12,533 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 20:46:12,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:46:12 BoogieIcfgContainer [2018-11-28 20:46:12,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:46:12,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:46:12,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:46:12,538 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:46:12,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:46:11" (1/3) ... [2018-11-28 20:46:12,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@294ca928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:46:12, skipping insertion in model container [2018-11-28 20:46:12,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:46:11" (2/3) ... [2018-11-28 20:46:12,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@294ca928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:46:12, skipping insertion in model container [2018-11-28 20:46:12,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:46:12" (3/3) ... [2018-11-28 20:46:12,543 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-mISDN-mISDN_core.ko_false-unreach-call-test.cil.out.i [2018-11-28 20:46:12,554 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:46:12,562 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:46:12,581 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:46:12,615 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:46:12,616 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:46:12,616 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:46:12,616 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:46:12,617 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:46:12,617 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:46:12,617 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:46:12,618 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:46:12,618 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:46:12,639 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-28 20:46:12,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:46:12,646 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:46:12,648 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:46:12,651 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:46:12,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:46:12,657 INFO L82 PathProgramCache]: Analyzing trace with hash 45926039, now seen corresponding path program 1 times [2018-11-28 20:46:12,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:46:12,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:46:12,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:46:12,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:46:12,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:46:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 20:46:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 20:46:12,832 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 20:46:12,849 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,850 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,850 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,851 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,851 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,851 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,864 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~task_list~0.next [2018-11-28 20:46:12,865 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~task_list~0.next [2018-11-28 20:46:12,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:46:12 BoogieIcfgContainer [2018-11-28 20:46:12,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:46:12,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:46:12,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:46:12,876 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:46:12,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:46:12" (3/4) ... [2018-11-28 20:46:12,881 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 20:46:12,885 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,885 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,885 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,885 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,886 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,886 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled [2018-11-28 20:46:12,891 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~task_list~0.next [2018-11-28 20:46:12,892 WARN L1298 BoogieBacktranslator]: unknown boogie variable ~task_list~0.next [2018-11-28 20:46:12,947 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:46:12,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:46:12,949 INFO L168 Benchmark]: Toolchain (without parser) took 1342.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -158.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:46:12,951 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:46:12,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.62 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:46:12,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.68 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:46:12,953 INFO L168 Benchmark]: Boogie Preprocessor took 25.46 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:46:12,954 INFO L168 Benchmark]: RCFGBuilder took 522.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:46:12,956 INFO L168 Benchmark]: TraceAbstraction took 341.32 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:46:12,956 INFO L168 Benchmark]: Witness Printer took 72.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:46:12,960 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 348.62 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.68 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.46 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 522.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 341.32 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 72.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~task_list~0 : { next : $Pointer$ } not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~task_list~0.next - GenericResult: Unfinished Backtranslation unknown boogie variable ~task_list~0.next - GenericResult: Unfinished Backtranslation unknown boogie variable ~task_list~0.next - GenericResult: Unfinished Backtranslation unknown boogie variable ~task_list~0.next * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 39]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L34] struct file *var_group1 ; [L35] int res ; [L36] CALL mISDN_open(var_group1) VAL [filep={9:7}] [L13] struct mISDNtimerdev *dev ; VAL [filep={9:7}, filep={9:7}] [L14] CALL, EXPR __kmalloc(208UL, 208U) VAL [\old(arg0)=208, \old(arg1)=208] [L45] CALL, EXPR external_alloc() [L49] return __VERIFIER_external_alloc(); [L45] RET, EXPR external_alloc() VAL [\old(arg0)=208, \old(arg1)=208, arg0=208, arg1=208, external_alloc()={0:0}] [L45] return (void *)external_alloc(); [L14] RET, EXPR __kmalloc(208UL, 208U) VAL [__kmalloc(208UL, 208U)={0:0}, filep={9:7}, filep={9:7}] [L14] dev = __kmalloc(208UL, 208U) [L15] COND TRUE dev == 0 [L16] return (-12); VAL [\result=-12, dev={0:0}, filep={9:7}, filep={9:7}] [L36] RET mISDN_open(var_group1) VAL [mISDN_open(var_group1)=-12, var_group1={9:7}] [L37] CALL, EXPR mISDN_read(var_group1) VAL [filep={9:7}] [L23] struct mISDNtimerdev *dev ; [L24] struct list_head task_list ; [L25] EXPR filep->private [L25] dev = (struct mISDNtimerdev *)filep->private [L26] COND TRUE dev != 0U VAL [dev={5:4}, filep={9:7}, filep={9:7}] [L27] task_list.next = 0 [L28] EXPR dev->expired.next VAL [dev={5:4}, dev->expired.next={6:3}, filep={9:7}, filep={9:7}, task_list={0:0}] [L28] COND TRUE dev->expired.next != 1 [L29] return -14; VAL [\result=-14, dev={5:4}, filep={9:7}, filep={9:7}, task_list={0:0}] [L37] RET, EXPR mISDN_read(var_group1) VAL [mISDN_read(var_group1)=-14, var_group1={9:7}] [L37] res = mISDN_read(var_group1) [L38] COND TRUE res < 0L VAL [res=-14, var_group1={9:7}] [L39] __VERIFIER_error() VAL [res=-14, var_group1={9:7}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...