./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/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 32bit --witnessprinter.graph.data.programhash 3d1a973dcd7009ffcd2eda1338249f4d290fb62a .............................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-0cd3be1 [2018-11-28 12:12:07,735 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:12:07,736 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:12:07,746 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:12:07,746 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:12:07,747 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:12:07,748 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:12:07,749 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:12:07,750 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:12:07,751 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:12:07,752 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:12:07,752 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:12:07,753 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:12:07,753 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:12:07,754 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:12:07,754 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:12:07,755 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:12:07,756 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:12:07,757 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:12:07,758 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:12:07,759 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:12:07,759 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:12:07,761 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:12:07,761 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:12:07,761 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:12:07,762 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:12:07,762 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:12:07,763 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:12:07,763 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:12:07,767 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:12:07,767 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:12:07,768 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:12:07,768 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:12:07,768 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:12:07,769 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:12:07,769 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:12:07,769 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:12:07,781 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:12:07,782 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:12:07,782 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:12:07,782 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:12:07,783 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:12:07,783 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:12:07,783 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:12:07,783 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:12:07,784 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:12:07,784 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:12:07,784 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:12:07,784 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:12:07,784 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:12:07,784 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:12:07,784 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:12:07,785 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:12:07,785 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:12:07,785 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:12:07,785 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:12:07,785 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:12:07,785 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:12:07,786 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:12:07,786 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:12:07,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:12:07,786 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:12:07,786 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:12:07,786 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:12:07,787 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:12:07,787 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:12:07,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:12:07,790 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d1a973dcd7009ffcd2eda1338249f4d290fb62a [2018-11-28 12:12:07,818 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:12:07,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:12:07,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:12:07,833 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:12:07,833 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:12:07,833 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-11-28 12:12:07,878 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/data/b820ff0f0/8acf1d85d88242329bd7493c12daf8b9/FLAG5cab1dd35 [2018-11-28 12:12:08,271 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:12:08,271 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-11-28 12:12:08,281 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/data/b820ff0f0/8acf1d85d88242329bd7493c12daf8b9/FLAG5cab1dd35 [2018-11-28 12:12:08,643 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/data/b820ff0f0/8acf1d85d88242329bd7493c12daf8b9 [2018-11-28 12:12:08,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:12:08,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:12:08,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:12:08,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:12:08,651 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:12:08,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:08,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e39e4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08, skipping insertion in model container [2018-11-28 12:12:08,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:08,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:12:08,692 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:12:08,881 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:12:08,887 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:12:08,960 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:12:08,991 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:12:08,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08 WrapperNode [2018-11-28 12:12:08,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:12:08,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:12:08,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:12:08,992 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:12:08,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:09,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:09,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:12:09,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:12:09,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:12:09,016 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:12:09,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:09,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:09,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:09,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:09,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:09,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:09,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... [2018-11-28 12:12:09,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:12:09,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:12:09,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:12:09,041 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:12:09,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/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 [2018-11-28 12:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:12:09,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:12:09,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:12:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 12:12:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 12:12:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:12:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:12:09,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:12:09,388 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:12:09,388 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-11-28 12:12:09,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:12:09 BoogieIcfgContainer [2018-11-28 12:12:09,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:12:09,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:12:09,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:12:09,393 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:12:09,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:12:08" (1/3) ... [2018-11-28 12:12:09,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20129bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:12:09, skipping insertion in model container [2018-11-28 12:12:09,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:12:08" (2/3) ... [2018-11-28 12:12:09,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20129bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:12:09, skipping insertion in model container [2018-11-28 12:12:09,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:12:09" (3/3) ... [2018-11-28 12:12:09,395 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-11-28 12:12:09,401 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:12:09,407 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 12:12:09,417 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 12:12:09,437 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:12:09,438 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:12:09,438 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:12:09,438 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:12:09,438 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:12:09,438 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:12:09,438 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:12:09,438 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:12:09,438 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:12:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-11-28 12:12:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:12:09,454 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:09,454 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:12:09,456 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:09,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:09,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1783331453, now seen corresponding path program 1 times [2018-11-28 12:12:09,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:09,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:09,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:09,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:09,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:12:09,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:09,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:12:09,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:12:09,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:12:09,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:12:09,578 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-11-28 12:12:09,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:09,596 INFO L93 Difference]: Finished difference Result 112 states and 178 transitions. [2018-11-28 12:12:09,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:12:09,598 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-28 12:12:09,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:09,604 INFO L225 Difference]: With dead ends: 112 [2018-11-28 12:12:09,605 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 12:12:09,607 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:12:09,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 12:12:09,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-28 12:12:09,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 12:12:09,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-11-28 12:12:09,634 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 10 [2018-11-28 12:12:09,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:09,635 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-11-28 12:12:09,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:12:09,635 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-11-28 12:12:09,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 12:12:09,635 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:09,635 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:12:09,636 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:09,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:09,636 INFO L82 PathProgramCache]: Analyzing trace with hash -569388701, now seen corresponding path program 1 times [2018-11-28 12:12:09,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:09,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:09,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:09,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:09,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:12:09,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:09,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:12:09,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:12:09,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:12:09,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:12:09,687 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 3 states. [2018-11-28 12:12:09,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:09,756 INFO L93 Difference]: Finished difference Result 107 states and 130 transitions. [2018-11-28 12:12:09,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:12:09,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 12:12:09,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:09,758 INFO L225 Difference]: With dead ends: 107 [2018-11-28 12:12:09,758 INFO L226 Difference]: Without dead ends: 59 [2018-11-28 12:12:09,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:12:09,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-28 12:12:09,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2018-11-28 12:12:09,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-28 12:12:09,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2018-11-28 12:12:09,765 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 11 [2018-11-28 12:12:09,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:09,766 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2018-11-28 12:12:09,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:12:09,766 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2018-11-28 12:12:09,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 12:12:09,766 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:09,767 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:12:09,767 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:09,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:09,767 INFO L82 PathProgramCache]: Analyzing trace with hash -846164232, now seen corresponding path program 1 times [2018-11-28 12:12:09,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:09,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:09,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:09,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:09,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 12:12:09,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:09,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:12:09,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:12:09,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:12:09,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:12:09,841 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 4 states. [2018-11-28 12:12:09,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:09,933 INFO L93 Difference]: Finished difference Result 91 states and 109 transitions. [2018-11-28 12:12:09,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:12:09,934 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-28 12:12:09,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:09,935 INFO L225 Difference]: With dead ends: 91 [2018-11-28 12:12:09,935 INFO L226 Difference]: Without dead ends: 89 [2018-11-28 12:12:09,936 INFO L631 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 [2018-11-28 12:12:09,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-28 12:12:09,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 56. [2018-11-28 12:12:09,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-28 12:12:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2018-11-28 12:12:09,944 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 15 [2018-11-28 12:12:09,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:09,944 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2018-11-28 12:12:09,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:12:09,944 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2018-11-28 12:12:09,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 12:12:09,945 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:09,945 INFO L402 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] [2018-11-28 12:12:09,945 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:09,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:09,947 INFO L82 PathProgramCache]: Analyzing trace with hash 936567374, now seen corresponding path program 1 times [2018-11-28 12:12:09,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:09,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:09,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:09,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:09,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:12:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:12:10,023 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:12:10,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:12:10 BoogieIcfgContainer [2018-11-28 12:12:10,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:12:10,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:12:10,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:12:10,044 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:12:10,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:12:09" (3/4) ... [2018-11-28 12:12:10,046 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:12:10,079 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_aaaf522d-b0b0-460c-a5ef-ba0658089421/bin-2019/uautomizer/witness.graphml [2018-11-28 12:12:10,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:12:10,080 INFO L168 Benchmark]: Toolchain (without parser) took 1433.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 950.6 MB in the beginning and 1.0 GB in the end (delta: -94.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:10,081 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:12:10,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:10,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.47 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 12:12:10,083 INFO L168 Benchmark]: Boogie Preprocessor took 25.37 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:10,083 INFO L168 Benchmark]: RCFGBuilder took 348.04 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:10,083 INFO L168 Benchmark]: TraceAbstraction took 654.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.5 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:10,084 INFO L168 Benchmark]: Witness Printer took 35.13 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:10,086 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 344.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.47 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. * Boogie Preprocessor took 25.37 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 348.04 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 654.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.5 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.13 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1027]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] head->data = 0 [L991] SLL* x = head; [L992] int marked = 0; VAL [head={21:0}, malloc(sizeof(SLL))={21:0}, marked=0, x={21:0}] [L995] COND TRUE __VERIFIER_nondet_int() || !marked [L998] x->next = malloc(sizeof(SLL)) [L999] EXPR x->next [L999] x->next->prev = x [L1000] EXPR x->next [L1000] x = x->next [L1001] x->next = ((void*)0) [L1003] COND TRUE __VERIFIER_nondet_int() [L1005] marked = 1 VAL [head={21:0}, malloc(sizeof(SLL))={21:0}, malloc(sizeof(SLL))={19:0}, marked=1, x={19:0}] [L1008] COND TRUE \read(marked) [L1009] x->data = 1 VAL [head={21:0}, malloc(sizeof(SLL))={21:0}, malloc(sizeof(SLL))={19:0}, marked=1, x={19:0}] [L995] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1014] x = head VAL [head={21:0}, malloc(sizeof(SLL))={21:0}, malloc(sizeof(SLL))={19:0}, marked=1, x={21:0}] [L1016] COND FALSE !(!(((void*)0) != x)) VAL [head={21:0}, malloc(sizeof(SLL))={21:0}, malloc(sizeof(SLL))={19:0}, marked=1, x={21:0}] [L1017] marked = 0 VAL [head={21:0}, malloc(sizeof(SLL))={21:0}, malloc(sizeof(SLL))={19:0}, marked=0, x={21:0}] [L1019] EXPR x->next [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] EXPR x->next [L1019] EXPR x->next->data [L1019] x->next != ((void*)0) && x->next->data == 0 VAL [head={21:0}, malloc(sizeof(SLL))={21:0}, malloc(sizeof(SLL))={19:0}, marked=0, x={21:0}, x->next={19:0}, x->next={19:0}, x->next != ((void*)0) && x->next->data == 0=0, x->next->data=1] [L1019] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1024] EXPR x->next [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, head={21:0}, malloc(sizeof(SLL))={21:0}, malloc(sizeof(SLL))={19:0}, marked=0, x={21:0}, x->next={19:0}, x->next != ((void*)0) && __VERIFIER_nondet_int()=1] [L1024] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1026] EXPR x->next [L1026] x = x->next [L1027] EXPR x->data VAL [head={21:0}, malloc(sizeof(SLL))={21:0}, malloc(sizeof(SLL))={19:0}, marked=0, x={19:0}, x->data=1] [L1027] COND TRUE !(x->data != 1) [L1027] __VERIFIER_error() VAL [head={21:0}, malloc(sizeof(SLL))={21:0}, malloc(sizeof(SLL))={19:0}, marked=0, x={19:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 6 error locations. UNSAFE Result, 0.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 175 SDtfs, 155 SDslu, 63 SDs, 0 SdLazy, 50 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 753 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...