./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e09e2fe0d9f978fd259d1d805e514754ab2def67 ........................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:43:39,690 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:43:39,692 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:43:39,701 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:43:39,702 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:43:39,703 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:43:39,705 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:43:39,706 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:43:39,708 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:43:39,711 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:43:39,712 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:43:39,712 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:43:39,713 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:43:39,714 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:43:39,715 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:43:39,718 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:43:39,718 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:43:39,720 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:43:39,721 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:43:39,722 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:43:39,732 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:43:39,733 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:43:39,735 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:43:39,735 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:43:39,735 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:43:39,736 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:43:39,736 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:43:39,737 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:43:39,738 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:43:39,738 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:43:39,739 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:43:39,743 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:43:39,744 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:43:39,744 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:43:39,745 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:43:39,745 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:43:39,745 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-10-27 05:43:39,757 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:43:39,757 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:43:39,758 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:43:39,758 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:43:39,758 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:43:39,758 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:43:39,758 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:43:39,759 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:43:39,759 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:43:39,760 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:43:39,760 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:43:39,760 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:43:39,760 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:43:39,761 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:43:39,761 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:43:39,761 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:43:39,762 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:43:39,762 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:43:39,762 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:43:39,762 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:43:39,763 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:43:39,763 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:43:39,763 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:43:39,763 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:43:39,763 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:43:39,763 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:43:39,763 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:43:39,763 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:43:39,764 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:43:39,764 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:43:39,764 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:43:39,764 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:43:39,764 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:43:39,764 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_71782d9b-ef41-4881-b873-4a904e532ff0/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e09e2fe0d9f978fd259d1d805e514754ab2def67 [2018-10-27 05:43:39,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:43:39,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:43:39,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:43:39,803 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:43:39,803 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:43:39,804 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4_true-termination_true-no-overflow.c [2018-10-27 05:43:39,847 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/data/999dc2858/74e20468b9f345dbb61b8d3eb03c2b84/FLAG5aa6368d9 [2018-10-27 05:43:40,230 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:43:40,231 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4_true-termination_true-no-overflow.c [2018-10-27 05:43:40,236 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/data/999dc2858/74e20468b9f345dbb61b8d3eb03c2b84/FLAG5aa6368d9 [2018-10-27 05:43:40,247 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/data/999dc2858/74e20468b9f345dbb61b8d3eb03c2b84 [2018-10-27 05:43:40,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:43:40,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:43:40,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:43:40,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:43:40,254 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:43:40,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce6d6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40, skipping insertion in model container [2018-10-27 05:43:40,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:43:40,280 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:43:40,407 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:43:40,410 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:43:40,421 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:43:40,433 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:43:40,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40 WrapperNode [2018-10-27 05:43:40,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:43:40,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:43:40,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:43:40,435 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:43:40,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:43:40,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:43:40,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:43:40,452 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:43:40,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... [2018-10-27 05:43:40,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:43:40,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:43:40,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:43:40,470 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:43:40,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/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 [2018-10-27 05:43:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:43:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:43:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:43:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:43:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:43:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:43:40,889 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:43:40,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:43:40 BoogieIcfgContainer [2018-10-27 05:43:40,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:43:40,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:43:40,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:43:40,894 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:43:40,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:43:40" (1/3) ... [2018-10-27 05:43:40,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0c54f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:43:40, skipping insertion in model container [2018-10-27 05:43:40,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:43:40" (2/3) ... [2018-10-27 05:43:40,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0c54f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:43:40, skipping insertion in model container [2018-10-27 05:43:40,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:43:40" (3/3) ... [2018-10-27 05:43:40,909 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig4_true-termination_true-no-overflow.c [2018-10-27 05:43:40,918 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:43:40,929 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-10-27 05:43:40,944 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-10-27 05:43:40,991 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:43:40,991 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:43:40,991 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:43:40,991 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:43:40,992 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:43:40,992 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:43:40,992 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:43:40,992 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:43:41,009 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-10-27 05:43:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:43:41,016 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:43:41,016 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:43:41,019 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:43:41,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:43:41,025 INFO L82 PathProgramCache]: Analyzing trace with hash 512030507, now seen corresponding path program 1 times [2018-10-27 05:43:41,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:43:41,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:41,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:43:41,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:41,085 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:43:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:43:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:43:41,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:43:41,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:43:41,219 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:43:41,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:43:41,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:43:41,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:43:41,243 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-10-27 05:43:41,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:43:41,304 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-10-27 05:43:41,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:43:41,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-10-27 05:43:41,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:43:41,314 INFO L225 Difference]: With dead ends: 26 [2018-10-27 05:43:41,314 INFO L226 Difference]: Without dead ends: 15 [2018-10-27 05:43:41,317 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:43:41,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-27 05:43:41,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-10-27 05:43:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-27 05:43:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-10-27 05:43:41,349 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2018-10-27 05:43:41,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:43:41,350 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-10-27 05:43:41,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:43:41,350 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-10-27 05:43:41,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:43:41,350 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:43:41,351 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:43:41,351 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:43:41,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:43:41,351 INFO L82 PathProgramCache]: Analyzing trace with hash 512030699, now seen corresponding path program 1 times [2018-10-27 05:43:41,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:43:41,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:41,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:43:41,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:41,354 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:43:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:43:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:43:41,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:43:41,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:43:41,397 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:43:41,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:43:41,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:43:41,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:43:41,399 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2018-10-27 05:43:41,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:43:41,439 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-10-27 05:43:41,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:43:41,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-10-27 05:43:41,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:43:41,440 INFO L225 Difference]: With dead ends: 15 [2018-10-27 05:43:41,441 INFO L226 Difference]: Without dead ends: 14 [2018-10-27 05:43:41,441 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:43:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-27 05:43:41,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-27 05:43:41,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-27 05:43:41,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-10-27 05:43:41,445 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2018-10-27 05:43:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:43:41,445 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-10-27 05:43:41,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:43:41,445 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-10-27 05:43:41,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:43:41,446 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:43:41,446 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:43:41,446 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:43:41,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:43:41,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1306923416, now seen corresponding path program 1 times [2018-10-27 05:43:41,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:43:41,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:41,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:43:41,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:41,449 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:43:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:43:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:43:41,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:43:41,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:43:41,492 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:43:41,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:43:41,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:43:41,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:43:41,494 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-10-27 05:43:41,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:43:41,523 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-10-27 05:43:41,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:43:41,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:43:41,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:43:41,525 INFO L225 Difference]: With dead ends: 16 [2018-10-27 05:43:41,525 INFO L226 Difference]: Without dead ends: 15 [2018-10-27 05:43:41,525 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:43:41,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-27 05:43:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-10-27 05:43:41,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-27 05:43:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-10-27 05:43:41,530 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2018-10-27 05:43:41,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:43:41,530 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-10-27 05:43:41,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:43:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-10-27 05:43:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:43:41,530 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:43:41,531 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:43:41,531 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:43:41,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:43:41,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1306917458, now seen corresponding path program 1 times [2018-10-27 05:43:41,531 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:43:41,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:41,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:43:41,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:41,533 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:43:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:43:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:43:41,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:43:41,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:43:41,576 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:43:41,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:43:41,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:43:41,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:43:41,577 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2018-10-27 05:43:41,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:43:41,616 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-10-27 05:43:41,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:43:41,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:43:41,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:43:41,617 INFO L225 Difference]: With dead ends: 13 [2018-10-27 05:43:41,617 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 05:43:41,617 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:43:41,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 05:43:41,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 05:43:41,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 05:43:41,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 05:43:41,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-10-27 05:43:41,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:43:41,618 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 05:43:41,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:43:41,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 05:43:41,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:43:41,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 05:43:41,660 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 05:43:41,660 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:43:41,660 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:43:41,660 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 05:43:41,660 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 05:43:41,661 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 05:43:41,661 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2018-10-27 05:43:41,661 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-10-27 05:43:41,661 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-27 05:43:41,661 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-10-27 05:43:41,661 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 24) no Hoare annotation was computed. [2018-10-27 05:43:41,661 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 24) no Hoare annotation was computed. [2018-10-27 05:43:41,661 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 26) no Hoare annotation was computed. [2018-10-27 05:43:41,661 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-10-27 05:43:41,661 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2018-10-27 05:43:41,662 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-27 05:43:41,662 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-10-27 05:43:41,662 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-10-27 05:43:41,662 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 23) no Hoare annotation was computed. [2018-10-27 05:43:41,662 INFO L421 ceAbstractionStarter]: At program point L18-2(lines 17 24) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= main_~y~0 2147483647)) [2018-10-27 05:43:41,662 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-10-27 05:43:41,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:43:41 BoogieIcfgContainer [2018-10-27 05:43:41,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:43:41,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:43:41,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:43:41,672 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:43:41,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:43:40" (3/4) ... [2018-10-27 05:43:41,675 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:43:41,680 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 05:43:41,680 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 05:43:41,684 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-10-27 05:43:41,684 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:43:41,684 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 05:43:41,723 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71782d9b-ef41-4881-b873-4a904e532ff0/bin-2019/utaipan/witness.graphml [2018-10-27 05:43:41,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:43:41,724 INFO L168 Benchmark]: Toolchain (without parser) took 1474.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 961.2 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:41,725 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:43:41,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.61 ms. Allocated memory is still 1.0 GB. Free memory was 961.2 MB in the beginning and 950.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:41,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.07 ms. Allocated memory is still 1.0 GB. Free memory is still 950.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:43:41,727 INFO L168 Benchmark]: Boogie Preprocessor took 17.14 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 947.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:41,727 INFO L168 Benchmark]: RCFGBuilder took 420.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 947.7 MB in the beginning and 1.2 GB in the end (delta: -210.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:41,728 INFO L168 Benchmark]: TraceAbstraction took 780.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:41,728 INFO L168 Benchmark]: Witness Printer took 51.84 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. [2018-10-27 05:43:41,731 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.61 ms. Allocated memory is still 1.0 GB. Free memory was 961.2 MB in the beginning and 950.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.07 ms. Allocated memory is still 1.0 GB. Free memory is still 950.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.14 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 947.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 420.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 947.7 MB in the beginning and 1.2 GB in the end (delta: -210.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 780.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. * Witness Printer took 51.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 0.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 22 SDslu, 20 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...