./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/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 ebb74e337af9534aacfcb2a7a413bdbed21e04b2 .......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:31:29,231 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:31:29,232 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:31:29,240 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:31:29,240 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:31:29,241 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:31:29,242 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:31:29,243 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:31:29,244 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:31:29,245 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:31:29,246 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:31:29,246 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:31:29,246 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:31:29,247 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:31:29,248 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:31:29,248 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:31:29,248 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:31:29,250 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:31:29,251 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:31:29,252 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:31:29,253 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:31:29,254 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:31:29,255 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:31:29,255 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:31:29,256 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:31:29,256 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:31:29,257 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:31:29,258 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:31:29,258 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:31:29,259 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:31:29,259 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:31:29,260 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:31:29,260 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:31:29,260 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:31:29,260 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:31:29,261 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:31:29,261 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 17:31:29,271 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:31:29,271 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:31:29,272 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:31:29,272 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:31:29,272 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:31:29,272 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:31:29,272 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:31:29,272 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:31:29,272 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:31:29,272 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:31:29,273 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:31:29,273 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:31:29,273 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:31:29,273 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:31:29,274 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:31:29,274 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:31:29,274 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:31:29,274 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:31:29,274 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:31:29,274 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:31:29,274 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 17:31:29,274 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:31:29,275 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:31:29,275 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:31:29,275 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:31:29,275 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:31:29,275 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:31:29,275 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:31:29,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:31:29,276 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:31:29,276 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:31:29,276 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:31:29,276 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:31:29,276 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:31:29,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:31:29,276 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:31:29,276 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_ea671215-f202-45da-b3e0-1ff598e68127/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 -> ebb74e337af9534aacfcb2a7a413bdbed21e04b2 [2018-11-18 17:31:29,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:31:29,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:31:29,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:31:29,316 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:31:29,317 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:31:29,317 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1_true-termination_true-no-overflow.c [2018-11-18 17:31:29,367 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/data/9fe8ff1f6/55f77a28b6b14eb6943d70827550e6cb/FLAGea594c203 [2018-11-18 17:31:29,782 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:31:29,782 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1_true-termination_true-no-overflow.c [2018-11-18 17:31:29,786 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/data/9fe8ff1f6/55f77a28b6b14eb6943d70827550e6cb/FLAGea594c203 [2018-11-18 17:31:29,798 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/data/9fe8ff1f6/55f77a28b6b14eb6943d70827550e6cb [2018-11-18 17:31:29,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:31:29,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:31:29,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:31:29,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:31:29,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:31:29,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88e9939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29, skipping insertion in model container [2018-11-18 17:31:29,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:31:29,834 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:31:29,943 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:31:29,945 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:31:29,954 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:31:29,962 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:31:29,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29 WrapperNode [2018-11-18 17:31:29,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:31:29,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:31:29,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:31:29,963 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:31:29,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:31:29,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:31:29,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:31:29,976 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:31:29,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... [2018-11-18 17:31:29,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:31:29,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:31:29,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:31:29,989 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:31:29,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/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 [2018-11-18 17:31:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:31:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:31:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:31:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:31:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:31:30,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:31:30,181 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:31:30,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:31:30 BoogieIcfgContainer [2018-11-18 17:31:30,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:31:30,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:31:30,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:31:30,184 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:31:30,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:31:29" (1/3) ... [2018-11-18 17:31:30,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d88e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:31:30, skipping insertion in model container [2018-11-18 17:31:30,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:29" (2/3) ... [2018-11-18 17:31:30,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d88e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:31:30, skipping insertion in model container [2018-11-18 17:31:30,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:31:30" (3/3) ... [2018-11-18 17:31:30,186 INFO L112 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex1_true-termination_true-no-overflow.c [2018-11-18 17:31:30,192 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:31:30,202 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-18 17:31:30,215 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-18 17:31:30,245 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:31:30,245 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:31:30,245 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:31:30,245 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:31:30,245 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:31:30,245 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:31:30,245 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:31:30,246 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:31:30,257 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-18 17:31:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 17:31:30,261 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:31:30,262 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:31:30,264 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 17:31:30,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:31:30,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1971392051, now seen corresponding path program 1 times [2018-11-18 17:31:30,269 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:31:30,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:30,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:31:30,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:30,311 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:31:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:31:30,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:31:30,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:31:30,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:31:30,381 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:31:30,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 17:31:30,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:31:30,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:31:30,400 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 4 states. [2018-11-18 17:31:30,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:31:30,507 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-11-18 17:31:30,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:31:30,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-18 17:31:30,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:31:30,517 INFO L225 Difference]: With dead ends: 52 [2018-11-18 17:31:30,517 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 17:31:30,520 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:31:30,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 17:31:30,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 22. [2018-11-18 17:31:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 17:31:30,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-11-18 17:31:30,548 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 9 [2018-11-18 17:31:30,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:31:30,548 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-11-18 17:31:30,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 17:31:30,549 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-11-18 17:31:30,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 17:31:30,549 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:31:30,549 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:31:30,549 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 17:31:30,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:31:30,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1971392371, now seen corresponding path program 1 times [2018-11-18 17:31:30,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:31:30,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:30,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:31:30,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:30,552 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:31:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:31:30,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:31:30,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:31:30,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:31:30,585 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:31:30,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 17:31:30,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:31:30,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:31:30,587 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 4 states. [2018-11-18 17:31:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:31:30,717 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-11-18 17:31:30,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:31:30,718 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-18 17:31:30,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:31:30,719 INFO L225 Difference]: With dead ends: 37 [2018-11-18 17:31:30,719 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 17:31:30,719 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:31:30,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 17:31:30,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2018-11-18 17:31:30,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 17:31:30,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-11-18 17:31:30,722 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 9 [2018-11-18 17:31:30,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:31:30,722 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-11-18 17:31:30,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 17:31:30,722 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-11-18 17:31:30,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 17:31:30,723 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:31:30,723 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:31:30,723 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 17:31:30,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:31:30,724 INFO L82 PathProgramCache]: Analyzing trace with hash 983611488, now seen corresponding path program 1 times [2018-11-18 17:31:30,724 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:31:30,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:30,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:31:30,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:30,725 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:31:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:31:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:31:30,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:31:30,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:31:30,745 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:31:30,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 17:31:30,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:31:30,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:31:30,746 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 4 states. [2018-11-18 17:31:30,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:31:30,769 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-11-18 17:31:30,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:31:30,770 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 17:31:30,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:31:30,770 INFO L225 Difference]: With dead ends: 20 [2018-11-18 17:31:30,770 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 17:31:30,771 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:31:30,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 17:31:30,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 17:31:30,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 17:31:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-18 17:31:30,773 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 10 [2018-11-18 17:31:30,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:31:30,773 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-18 17:31:30,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 17:31:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-18 17:31:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 17:31:30,774 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:31:30,774 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:31:30,774 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 17:31:30,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:31:30,774 INFO L82 PathProgramCache]: Analyzing trace with hash 983621418, now seen corresponding path program 1 times [2018-11-18 17:31:30,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:31:30,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:30,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:31:30,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:30,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:31:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:31:30,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:31:30,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:31:30,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:31:30,790 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:31:30,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 17:31:30,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:31:30,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:31:30,791 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 4 states. [2018-11-18 17:31:30,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:31:30,813 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-11-18 17:31:30,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:31:30,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 17:31:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:31:30,814 INFO L225 Difference]: With dead ends: 18 [2018-11-18 17:31:30,814 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:31:30,814 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:31:30,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:31:30,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:31:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:31:30,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:31:30,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-18 17:31:30,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:31:30,815 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:31:30,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 17:31:30,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:31:30,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:31:30,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:31:30,857 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:31:30,857 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 17:31:30,857 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-11-18 17:31:30,857 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point L19-3(line 19) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-11-18 17:31:30,858 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2018-11-18 17:31:30,858 INFO L421 ceAbstractionStarter]: At program point L18-2(lines 17 23) the Hoare annotation is: (and (<= main_~y~0 2147483647) (<= main_~q~0 2147483647) (<= 0 (+ main_~y~0 2147483648))) [2018-11-18 17:31:30,859 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-18 17:31:30,859 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-18 17:31:30,859 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-18 17:31:30,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:31:30 BoogieIcfgContainer [2018-11-18 17:31:30,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:31:30,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:31:30,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:31:30,868 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:31:30,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:31:30" (3/4) ... [2018-11-18 17:31:30,871 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:31:30,876 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:31:30,876 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:31:30,880 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 17:31:30,880 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 17:31:30,880 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 17:31:30,911 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ea671215-f202-45da-b3e0-1ff598e68127/bin-2019/utaipan/witness.graphml [2018-11-18 17:31:30,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:31:30,912 INFO L168 Benchmark]: Toolchain (without parser) took 1111.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 958.2 MB in the beginning and 1.0 GB in the end (delta: -80.4 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:30,913 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-11-18 17:31:30,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.67 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:30,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.46 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:31:30,914 INFO L168 Benchmark]: Boogie Preprocessor took 12.69 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:30,914 INFO L168 Benchmark]: RCFGBuilder took 192.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:30,915 INFO L168 Benchmark]: TraceAbstraction took 685.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.3 MB). Peak memory consumption was 68.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:30,915 INFO L168 Benchmark]: Witness Printer took 43.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:30,917 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.67 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.46 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.69 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 192.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 685.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.3 MB). Peak memory consumption was 68.3 MB. Max. memory is 11.5 GB. * Witness Printer took 43.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (y <= 2147483647 && q <= 2147483647) && 0 <= y + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 8 error locations. SAFE Result, 0.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 104 SDslu, 46 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 16 HoareAnnotationTreeSize, 5 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 801 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...