./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/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_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/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 0.1.23-5842f4b [2018-11-18 14:41:19,752 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:41:19,753 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:41:19,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:41:19,761 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:41:19,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:41:19,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:41:19,763 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:41:19,764 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:41:19,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:41:19,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:41:19,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:41:19,766 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:41:19,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:41:19,768 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:41:19,768 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:41:19,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:41:19,770 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:41:19,772 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:41:19,773 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:41:19,774 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:41:19,775 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:41:19,776 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:41:19,776 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:41:19,777 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:41:19,777 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:41:19,778 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:41:19,779 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:41:19,779 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:41:19,780 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:41:19,780 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:41:19,781 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:41:19,781 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:41:19,781 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:41:19,782 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:41:19,783 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:41:19,783 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 14:41:19,793 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:41:19,793 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:41:19,794 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:41:19,794 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:41:19,794 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:41:19,794 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:41:19,795 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:41:19,795 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:41:19,795 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:41:19,795 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:41:19,795 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:41:19,795 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:41:19,795 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:41:19,796 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:41:19,796 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:41:19,796 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:41:19,796 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:41:19,796 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:41:19,797 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:41:19,797 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:41:19,797 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 14:41:19,797 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:41:19,797 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:41:19,797 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:41:19,797 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:41:19,798 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:41:19,798 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:41:19,798 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:41:19,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:41:19,798 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:41:19,798 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:41:19,798 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:41:19,798 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:41:19,799 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:41:19,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:41:19,799 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:41:19,799 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_4ec35575-3965-49c2-9fa3-10a665b1e6cc/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 [2018-11-18 14:41:19,821 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:41:19,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:41:19,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:41:19,833 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:41:19,833 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:41:19,834 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9_true-termination_true-no-overflow.c [2018-11-18 14:41:19,872 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/data/10ae45ea2/f063b2bcc5244575a7dc42c5dbaae77e/FLAG813ab31c5 [2018-11-18 14:41:20,279 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:41:20,279 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9_true-termination_true-no-overflow.c [2018-11-18 14:41:20,283 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/data/10ae45ea2/f063b2bcc5244575a7dc42c5dbaae77e/FLAG813ab31c5 [2018-11-18 14:41:20,296 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/data/10ae45ea2/f063b2bcc5244575a7dc42c5dbaae77e [2018-11-18 14:41:20,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:41:20,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:41:20,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:41:20,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:41:20,303 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:41:20,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3fa979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20, skipping insertion in model container [2018-11-18 14:41:20,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:41:20,326 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:41:20,438 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:41:20,441 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:41:20,449 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:41:20,456 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:41:20,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20 WrapperNode [2018-11-18 14:41:20,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:41:20,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:41:20,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:41:20,458 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:41:20,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:41:20,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:41:20,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:41:20,470 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:41:20,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... [2018-11-18 14:41:20,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:41:20,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:41:20,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:41:20,482 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:41:20,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/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 14:41:20,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:41:20,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:41:20,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:41:20,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:41:20,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:41:20,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:41:20,642 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:41:20,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:41:20 BoogieIcfgContainer [2018-11-18 14:41:20,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:41:20,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:41:20,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:41:20,644 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:41:20,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:41:20" (1/3) ... [2018-11-18 14:41:20,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4329dbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:41:20, skipping insertion in model container [2018-11-18 14:41:20,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:41:20" (2/3) ... [2018-11-18 14:41:20,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4329dbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:41:20, skipping insertion in model container [2018-11-18 14:41:20,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:41:20" (3/3) ... [2018-11-18 14:41:20,647 INFO L112 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-WST2014-Ex9_true-termination_true-no-overflow.c [2018-11-18 14:41:20,652 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:41:20,657 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-18 14:41:20,666 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-18 14:41:20,687 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:41:20,687 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:41:20,687 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:41:20,688 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:41:20,688 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:41:20,688 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:41:20,688 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:41:20,688 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:41:20,700 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-18 14:41:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 14:41:20,704 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:41:20,705 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:41:20,707 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:41:20,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:41:20,710 INFO L82 PathProgramCache]: Analyzing trace with hash 2105155535, now seen corresponding path program 1 times [2018-11-18 14:41:20,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:41:20,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:41:20,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:41:20,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:41:20,749 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:41:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:41:20,831 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 14:41:20,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:41:20,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:41:20,833 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:41:20,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:41:20,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:41:20,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:41:20,848 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2018-11-18 14:41:20,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:41:20,894 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-11-18 14:41:20,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:41:20,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-18 14:41:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:41:20,901 INFO L225 Difference]: With dead ends: 21 [2018-11-18 14:41:20,901 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:41:20,904 INFO L604 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 [2018-11-18 14:41:20,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:41:20,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:41:20,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:41:20,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:41:20,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-18 14:41:20,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:41:20,926 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:41:20,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:41:20,926 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:41:20,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:41:20,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:41:20,953 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 14:41:20,953 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:41:20,953 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:41:20,953 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 14:41:20,953 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:41:20,953 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:41:20,954 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2018-11-18 14:41:20,954 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2018-11-18 14:41:20,954 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-18 14:41:20,954 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-18 14:41:20,954 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 17) no Hoare annotation was computed. [2018-11-18 14:41:20,954 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-11-18 14:41:20,954 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-18 14:41:20,954 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-18 14:41:20,955 INFO L421 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-11-18 14:41:20,955 INFO L425 ceAbstractionStarter]: For program point L13-4(lines 13 15) no Hoare annotation was computed. [2018-11-18 14:41:20,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:41:20 BoogieIcfgContainer [2018-11-18 14:41:20,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:41:20,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:41:20,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:41:20,962 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:41:20,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:41:20" (3/4) ... [2018-11-18 14:41:20,966 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:41:20,972 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:41:20,972 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:41:20,976 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 14:41:20,976 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 14:41:20,976 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 14:41:21,000 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4ec35575-3965-49c2-9fa3-10a665b1e6cc/bin-2019/utaipan/witness.graphml [2018-11-18 14:41:21,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:41:21,001 INFO L168 Benchmark]: Toolchain (without parser) took 703.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 960.9 MB in the beginning and 1.1 GB in the end (delta: -129.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:21,003 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:41:21,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.50 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:21,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.07 ms. Allocated memory is still 1.0 GB. Free memory is still 950.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:41:21,004 INFO L168 Benchmark]: Boogie Preprocessor took 11.94 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:21,004 INFO L168 Benchmark]: RCFGBuilder took 160.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:21,005 INFO L168 Benchmark]: TraceAbstraction took 319.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:21,005 INFO L168 Benchmark]: Witness Printer took 38.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:21,007 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.50 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 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 12.07 ms. Allocated memory is still 1.0 GB. Free memory is still 950.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.94 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 160.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 319.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Witness Printer took 38.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 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, 16 locations, 2 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 6 SDslu, 9 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=16occurred 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, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 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...