./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/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 8c261c4c4bb9c8a95f9cb14c668da53a89a0d0c6 ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 14:28:32,387 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 14:28:32,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 14:28:32,394 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 14:28:32,394 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 14:28:32,394 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 14:28:32,395 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 14:28:32,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 14:28:32,397 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 14:28:32,397 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 14:28:32,397 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 14:28:32,398 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 14:28:32,398 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 14:28:32,398 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 14:28:32,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 14:28:32,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 14:28:32,400 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 14:28:32,401 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 14:28:32,402 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 14:28:32,402 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 14:28:32,403 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 14:28:32,403 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 14:28:32,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 14:28:32,405 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 14:28:32,405 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 14:28:32,405 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 14:28:32,406 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 14:28:32,406 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 14:28:32,407 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 14:28:32,407 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 14:28:32,407 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 14:28:32,408 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 14:28:32,408 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 14:28:32,408 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 14:28:32,408 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 14:28:32,409 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 14:28:32,409 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-08 14:28:32,416 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 14:28:32,416 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 14:28:32,417 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 14:28:32,417 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 14:28:32,417 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 14:28:32,417 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 14:28:32,417 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 14:28:32,417 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 14:28:32,417 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 14:28:32,418 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 14:28:32,418 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 14:28:32,418 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 14:28:32,418 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 14:28:32,418 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 14:28:32,418 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 14:28:32,418 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 14:28:32,418 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 14:28:32,419 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 14:28:32,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 14:28:32,420 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 14:28:32,420 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 14:28:32,420 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 14:28:32,420 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 14:28:32,420 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 14:28:32,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 14:28:32,420 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 14:28:32,420 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_f314f822-5668-4156-9a4b-f702380c8901/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 -> 8c261c4c4bb9c8a95f9cb14c668da53a89a0d0c6 [2018-12-08 14:28:32,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 14:28:32,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 14:28:32,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 14:28:32,451 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 14:28:32,452 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 14:28:32,452 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9_true-termination_true-no-overflow.c [2018-12-08 14:28:32,500 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/data/08a6cf5d8/d285dd4e7a574f088e1fec9bc92355dd/FLAG383043938 [2018-12-08 14:28:32,877 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 14:28:32,878 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9_true-termination_true-no-overflow.c [2018-12-08 14:28:32,881 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/data/08a6cf5d8/d285dd4e7a574f088e1fec9bc92355dd/FLAG383043938 [2018-12-08 14:28:32,889 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/data/08a6cf5d8/d285dd4e7a574f088e1fec9bc92355dd [2018-12-08 14:28:32,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 14:28:32,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 14:28:32,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 14:28:32,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 14:28:32,895 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 14:28:32,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 02:28:32" (1/1) ... [2018-12-08 14:28:32,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd40c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:32, skipping insertion in model container [2018-12-08 14:28:32,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 02:28:32" (1/1) ... [2018-12-08 14:28:32,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 14:28:32,910 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 14:28:32,990 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 14:28:32,993 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 14:28:33,000 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 14:28:33,008 INFO L195 MainTranslator]: Completed translation [2018-12-08 14:28:33,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33 WrapperNode [2018-12-08 14:28:33,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 14:28:33,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 14:28:33,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 14:28:33,009 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 14:28:33,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... [2018-12-08 14:28:33,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... [2018-12-08 14:28:33,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 14:28:33,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 14:28:33,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 14:28:33,021 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 14:28:33,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... [2018-12-08 14:28:33,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... [2018-12-08 14:28:33,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... [2018-12-08 14:28:33,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... [2018-12-08 14:28:33,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... [2018-12-08 14:28:33,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... [2018-12-08 14:28:33,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... [2018-12-08 14:28:33,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 14:28:33,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 14:28:33,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 14:28:33,032 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 14:28:33,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/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 [2018-12-08 14:28:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 14:28:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 14:28:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 14:28:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 14:28:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 14:28:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 14:28:33,165 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 14:28:33,165 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 14:28:33,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:28:33 BoogieIcfgContainer [2018-12-08 14:28:33,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 14:28:33,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 14:28:33,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 14:28:33,168 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 14:28:33,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 02:28:32" (1/3) ... [2018-12-08 14:28:33,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1c4571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 02:28:33, skipping insertion in model container [2018-12-08 14:28:33,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:28:33" (2/3) ... [2018-12-08 14:28:33,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1c4571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 02:28:33, skipping insertion in model container [2018-12-08 14:28:33,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:28:33" (3/3) ... [2018-12-08 14:28:33,170 INFO L112 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-WST2014-Ex9_true-termination_true-no-overflow.c [2018-12-08 14:28:33,175 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 14:28:33,179 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-08 14:28:33,188 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-08 14:28:33,205 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 14:28:33,205 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 14:28:33,205 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 14:28:33,205 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 14:28:33,205 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 14:28:33,205 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 14:28:33,205 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 14:28:33,205 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 14:28:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-08 14:28:33,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 14:28:33,217 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:28:33,218 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:28:33,219 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 14:28:33,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:28:33,222 INFO L82 PathProgramCache]: Analyzing trace with hash 703472058, now seen corresponding path program 1 times [2018-12-08 14:28:33,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:28:33,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:28:33,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:28:33,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:28:33,251 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:28:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:28:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:28:33,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 14:28:33,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 14:28:33,310 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:28:33,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 14:28:33,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 14:28:33,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 14:28:33,322 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2018-12-08 14:28:33,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:28:33,343 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-12-08 14:28:33,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 14:28:33,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-12-08 14:28:33,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:28:33,348 INFO L225 Difference]: With dead ends: 20 [2018-12-08 14:28:33,348 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 14:28:33,350 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 14:28:33,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 14:28:33,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 14:28:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 14:28:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 14:28:33,365 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-12-08 14:28:33,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:28:33,365 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 14:28:33,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 14:28:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 14:28:33,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 14:28:33,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 14:28:33,379 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 14:28:33,379 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 14:28:33,379 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 14:28:33,379 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 14:28:33,379 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 14:28:33,379 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 14:28:33,379 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2018-12-08 14:28:33,379 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2018-12-08 14:28:33,379 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-12-08 14:28:33,379 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-12-08 14:28:33,379 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-12-08 14:28:33,380 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-12-08 14:28:33,380 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 17) no Hoare annotation was computed. [2018-12-08 14:28:33,380 INFO L444 ceAbstractionStarter]: At program point L13-2(lines 13 15) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-12-08 14:28:33,380 INFO L448 ceAbstractionStarter]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2018-12-08 14:28:33,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 02:28:33 BoogieIcfgContainer [2018-12-08 14:28:33,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 14:28:33,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 14:28:33,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 14:28:33,387 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 14:28:33,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:28:33" (3/4) ... [2018-12-08 14:28:33,389 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 14:28:33,393 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 14:28:33,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 14:28:33,396 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 14:28:33,396 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 14:28:33,396 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 14:28:33,419 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f314f822-5668-4156-9a4b-f702380c8901/bin-2019/utaipan/witness.graphml [2018-12-08 14:28:33,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 14:28:33,420 INFO L168 Benchmark]: Toolchain (without parser) took 528.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 952.5 MB in the beginning and 1.1 GB in the end (delta: -106.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:28:33,421 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:28:33,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.22 ms. Allocated memory is still 1.0 GB. Free memory was 952.5 MB in the beginning and 941.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 14:28:33,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.29 ms. Allocated memory is still 1.0 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:28:33,422 INFO L168 Benchmark]: Boogie Preprocessor took 11.56 ms. Allocated memory is still 1.0 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:28:33,422 INFO L168 Benchmark]: RCFGBuilder took 133.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-08 14:28:33,423 INFO L168 Benchmark]: TraceAbstraction took 220.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-08 14:28:33,424 INFO L168 Benchmark]: Witness Printer took 32.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 14:28:33,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 116.22 ms. Allocated memory is still 1.0 GB. Free memory was 952.5 MB in the beginning and 941.8 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 11.29 ms. Allocated memory is still 1.0 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.56 ms. Allocated memory is still 1.0 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 133.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 220.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 32.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 2 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 6 SDslu, 8 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 7 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...