./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a9cf4ff5024af4bea046a077f81b398a029046b .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:31:02,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:31:02,820 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:31:02,828 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:31:02,828 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:31:02,829 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:31:02,830 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:31:02,831 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:31:02,832 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:31:02,832 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:31:02,833 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:31:02,833 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:31:02,834 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:31:02,834 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:31:02,835 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:31:02,836 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:31:02,836 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:31:02,837 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:31:02,839 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:31:02,840 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:31:02,840 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:31:02,841 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:31:02,843 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:31:02,843 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:31:02,843 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:31:02,844 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:31:02,845 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:31:02,845 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:31:02,846 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:31:02,847 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:31:02,847 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:31:02,847 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:31:02,847 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:31:02,848 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:31:02,848 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:31:02,849 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:31:02,849 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 05:31:02,859 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:31:02,859 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:31:02,859 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:31:02,859 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:31:02,860 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:31:02,860 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:31:02,860 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:31:02,860 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:31:02,860 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:31:02,860 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:31:02,860 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:31:02,861 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:31:02,861 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:31:02,861 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:31:02,861 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:31:02,862 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:31:02,862 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:31:02,862 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:31:02,862 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:31:02,862 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:31:02,862 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:31:02,862 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:31:02,863 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:31:02,863 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:31:02,863 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:31:02,863 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:31:02,863 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:31:02,863 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:31:02,863 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:31:02,864 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:31:02,864 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:31:02,864 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:31:02,864 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:31:02,864 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:31:02,864 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan 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 -> Taipan 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 -> 9a9cf4ff5024af4bea046a077f81b398a029046b [2018-11-10 05:31:02,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:31:02,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:31:02,899 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:31:02,900 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:31:02,900 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:31:02,901 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i [2018-11-10 05:31:02,941 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/data/714e8b68e/b8d043e0233742d5bdff4ebb65a018a4/FLAGb1920e87b [2018-11-10 05:31:03,381 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:31:03,382 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i [2018-11-10 05:31:03,390 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/data/714e8b68e/b8d043e0233742d5bdff4ebb65a018a4/FLAGb1920e87b [2018-11-10 05:31:03,399 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/data/714e8b68e/b8d043e0233742d5bdff4ebb65a018a4 [2018-11-10 05:31:03,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:31:03,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:31:03,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:31:03,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:31:03,404 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:31:03,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d834faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03, skipping insertion in model container [2018-11-10 05:31:03,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:31:03,438 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:31:03,623 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:31:03,630 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:31:03,660 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:31:03,687 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:31:03,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03 WrapperNode [2018-11-10 05:31:03,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:31:03,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:31:03,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:31:03,688 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:31:03,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:31:03,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:31:03,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:31:03,761 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:31:03,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... [2018-11-10 05:31:03,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:31:03,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:31:03,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:31:03,785 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:31:03,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/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 [2018-11-10 05:31:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:31:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:31:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:31:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:31:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2018-11-10 05:31:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2018-11-10 05:31:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2018-11-10 05:31:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2018-11-10 05:31:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:31:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:31:04,117 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:31:04,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:31:04 BoogieIcfgContainer [2018-11-10 05:31:04,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:31:04,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:31:04,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:31:04,121 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:31:04,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:31:03" (1/3) ... [2018-11-10 05:31:04,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639e57a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:31:04, skipping insertion in model container [2018-11-10 05:31:04,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:03" (2/3) ... [2018-11-10 05:31:04,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639e57a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:31:04, skipping insertion in model container [2018-11-10 05:31:04,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:31:04" (3/3) ... [2018-11-10 05:31:04,124 INFO L112 eAbstractionObserver]: Analyzing ICFG quick_sort_split_true-unreach-call.i [2018-11-10 05:31:04,130 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:31:04,135 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 05:31:04,149 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 05:31:04,175 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:31:04,176 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:31:04,176 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:31:04,176 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:31:04,176 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:31:04,176 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:31:04,176 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:31:04,176 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:31:04,187 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-10 05:31:04,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:31:04,191 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:31:04,192 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:31:04,194 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:31:04,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:31:04,198 INFO L82 PathProgramCache]: Analyzing trace with hash 342752043, now seen corresponding path program 1 times [2018-11-10 05:31:04,199 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:31:04,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:31:04,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:31:04,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:31:04,242 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:31:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:31:04,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:31:04,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:31:04,312 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:31:04,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 05:31:04,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:31:04,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:31:04,324 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-10 05:31:04,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:31:04,336 INFO L93 Difference]: Finished difference Result 64 states and 84 transitions. [2018-11-10 05:31:04,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:31:04,337 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 05:31:04,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:31:04,344 INFO L225 Difference]: With dead ends: 64 [2018-11-10 05:31:04,345 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 05:31:04,347 INFO L605 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 [2018-11-10 05:31:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 05:31:04,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 05:31:04,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 05:31:04,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-11-10 05:31:04,373 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 17 [2018-11-10 05:31:04,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:31:04,374 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-11-10 05:31:04,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 05:31:04,374 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-11-10 05:31:04,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 05:31:04,375 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:31:04,375 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:31:04,376 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:31:04,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:31:04,376 INFO L82 PathProgramCache]: Analyzing trace with hash -492923029, now seen corresponding path program 1 times [2018-11-10 05:31:04,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:31:04,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:31:04,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:31:04,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:31:04,378 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:31:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:31:04,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:31:04,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 05:31:04,449 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:31:04,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:31:04,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:31:04,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:31:04,451 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 3 states. [2018-11-10 05:31:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:31:04,462 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2018-11-10 05:31:04,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:31:04,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-10 05:31:04,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:31:04,464 INFO L225 Difference]: With dead ends: 44 [2018-11-10 05:31:04,464 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 05:31:04,464 INFO L605 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 [2018-11-10 05:31:04,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 05:31:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 05:31:04,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 05:31:04,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-11-10 05:31:04,468 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 20 [2018-11-10 05:31:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:31:04,468 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2018-11-10 05:31:04,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:31:04,468 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-11-10 05:31:04,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 05:31:04,469 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:31:04,469 INFO L375 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] [2018-11-10 05:31:04,469 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:31:04,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:31:04,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1254098833, now seen corresponding path program 1 times [2018-11-10 05:31:04,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:31:04,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:31:04,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:31:04,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:31:04,471 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:31:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:04,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:31:04,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:31:04,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 05:31:04,519 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:31:04,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:31:04,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:31:04,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:31:04,520 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 3 states. [2018-11-10 05:31:04,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:31:04,525 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-11-10 05:31:04,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:31:04,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-10 05:31:04,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:31:04,526 INFO L225 Difference]: With dead ends: 34 [2018-11-10 05:31:04,526 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 05:31:04,526 INFO L605 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 [2018-11-10 05:31:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 05:31:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 05:31:04,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 05:31:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:31:04,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-11-10 05:31:04,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:31:04,527 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:31:04,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:31:04,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:31:04,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:31:04,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 05:31:04,577 INFO L428 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: true [2018-11-10 05:31:04,578 INFO L428 ceAbstractionStarter]: At program point L576-1(lines 571 577) the Hoare annotation is: true [2018-11-10 05:31:04,578 INFO L428 ceAbstractionStarter]: At program point L574(line 574) the Hoare annotation is: true [2018-11-10 05:31:04,578 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 576) no Hoare annotation was computed. [2018-11-10 05:31:04,578 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2018-11-10 05:31:04,578 INFO L425 ceAbstractionStarter]: For program point L571-2(lines 571 577) no Hoare annotation was computed. [2018-11-10 05:31:04,578 INFO L425 ceAbstractionStarter]: For program point L571-4(lines 571 577) no Hoare annotation was computed. [2018-11-10 05:31:04,578 INFO L425 ceAbstractionStarter]: For program point create_listEXIT(lines 569 579) no Hoare annotation was computed. [2018-11-10 05:31:04,578 INFO L428 ceAbstractionStarter]: At program point create_listENTRY(lines 569 579) the Hoare annotation is: true [2018-11-10 05:31:04,578 INFO L425 ceAbstractionStarter]: For program point create_listFINAL(lines 569 579) no Hoare annotation was computed. [2018-11-10 05:31:04,578 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:31:04,579 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:31:04,579 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:31:04,579 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:31:04,579 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 05:31:04,579 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:31:04,579 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:31:04,579 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 580 602) no Hoare annotation was computed. [2018-11-10 05:31:04,579 INFO L425 ceAbstractionStarter]: For program point L597(lines 597 601) no Hoare annotation was computed. [2018-11-10 05:31:04,579 INFO L425 ceAbstractionStarter]: For program point L597-2(lines 580 602) no Hoare annotation was computed. [2018-11-10 05:31:04,579 INFO L425 ceAbstractionStarter]: For program point L597-3(lines 580 602) no Hoare annotation was computed. [2018-11-10 05:31:04,579 INFO L425 ceAbstractionStarter]: For program point L593(lines 593 594) no Hoare annotation was computed. [2018-11-10 05:31:04,579 INFO L425 ceAbstractionStarter]: For program point L593-2(lines 593 594) no Hoare annotation was computed. [2018-11-10 05:31:04,580 INFO L425 ceAbstractionStarter]: For program point L585-1(lines 585 591) no Hoare annotation was computed. [2018-11-10 05:31:04,580 INFO L421 ceAbstractionStarter]: At program point L585-3(lines 585 591) the Hoare annotation is: (and (= main_~low~0.offset 0) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~high~0.offset 0)) [2018-11-10 05:31:04,580 INFO L425 ceAbstractionStarter]: For program point L581(line 581) no Hoare annotation was computed. [2018-11-10 05:31:04,580 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) no Hoare annotation was computed. [2018-11-10 05:31:04,580 INFO L425 ceAbstractionStarter]: For program point L598(lines 598 599) no Hoare annotation was computed. [2018-11-10 05:31:04,580 INFO L425 ceAbstractionStarter]: For program point L598-2(lines 598 599) no Hoare annotation was computed. [2018-11-10 05:31:04,580 INFO L425 ceAbstractionStarter]: For program point L594(line 594) no Hoare annotation was computed. [2018-11-10 05:31:04,580 INFO L425 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-11-10 05:31:04,580 INFO L425 ceAbstractionStarter]: For program point L586-2(line 586) no Hoare annotation was computed. [2018-11-10 05:31:04,580 INFO L425 ceAbstractionStarter]: For program point L599(line 599) no Hoare annotation was computed. [2018-11-10 05:31:04,581 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) no Hoare annotation was computed. [2018-11-10 05:31:04,581 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 580 602) the Hoare annotation is: true [2018-11-10 05:31:04,581 INFO L425 ceAbstractionStarter]: For program point L592(lines 592 596) no Hoare annotation was computed. [2018-11-10 05:31:04,581 INFO L425 ceAbstractionStarter]: For program point L592-2(lines 580 602) no Hoare annotation was computed. [2018-11-10 05:31:04,581 INFO L425 ceAbstractionStarter]: For program point append_to_listEXIT(lines 562 568) no Hoare annotation was computed. [2018-11-10 05:31:04,581 INFO L428 ceAbstractionStarter]: At program point append_to_listENTRY(lines 562 568) the Hoare annotation is: true [2018-11-10 05:31:04,581 INFO L425 ceAbstractionStarter]: For program point append_to_listFINAL(lines 562 568) no Hoare annotation was computed. [2018-11-10 05:31:04,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:31:04 BoogieIcfgContainer [2018-11-10 05:31:04,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:31:04,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:31:04,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:31:04,591 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:31:04,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:31:04" (3/4) ... [2018-11-10 05:31:04,594 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:31:04,599 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure create_list [2018-11-10 05:31:04,599 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 05:31:04,600 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 05:31:04,600 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure append_to_list [2018-11-10 05:31:04,604 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2018-11-10 05:31:04,604 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-11-10 05:31:04,605 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-10 05:31:04,605 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 05:31:04,646 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5506c730-6782-4507-b860-7a3b7487d7b7/bin-2019/utaipan/witness.graphml [2018-11-10 05:31:04,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:31:04,647 INFO L168 Benchmark]: Toolchain (without parser) took 1246.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -99.5 MB). Peak memory consumption was 44.1 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:04,648 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:31:04,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.95 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 936.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:04,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 936.0 MB in the beginning and 1.1 GB in the end (delta: -201.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:04,649 INFO L168 Benchmark]: Boogie Preprocessor took 23.58 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:04,649 INFO L168 Benchmark]: RCFGBuilder took 332.64 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:04,649 INFO L168 Benchmark]: TraceAbstraction took 472.16 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:04,649 INFO L168 Benchmark]: Witness Printer took 56.07 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:04,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 285.95 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 936.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 936.0 MB in the beginning and 1.1 GB in the end (delta: -201.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.58 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 332.64 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 472.16 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * Witness Printer took 56.07 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 594]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((low == 0 && low == 0) && high == 0) && high == 0 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 2 error locations. SAFE Result, 0.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 112 SDtfs, 15 SDslu, 44 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 22 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 2270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...