./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Cairo_step2-3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Cairo_step2-3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a03b979f45aa8ba48949293cad74f586aed4b0e9 .................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:49:52,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:49:52,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:49:52,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:49:52,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:49:52,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:49:52,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:49:52,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:49:52,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:49:52,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:49:52,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:49:52,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:49:52,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:49:52,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:49:52,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:49:52,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:49:52,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:49:52,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:49:52,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:49:52,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:49:52,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:49:52,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:49:52,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:49:52,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:49:52,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:49:52,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:49:52,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:49:52,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:49:52,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:49:52,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:49:52,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:49:52,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:49:52,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:49:52,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:49:52,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:49:52,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:49:52,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:49:52,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:49:52,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:49:52,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:49:52,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:49:52,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:49:52,819 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:49:52,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:49:52,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:49:52,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:49:52,821 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:49:52,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:49:52,822 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:49:52,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:49:52,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:49:52,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:49:52,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:49:52,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:49:52,824 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:49:52,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:49:52,824 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:49:52,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:49:52,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:49:52,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:49:52,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:49:52,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:49:52,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:49:52,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:49:52,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:49:52,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:49:52,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:49:52,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:49:52,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:49:52,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> a03b979f45aa8ba48949293cad74f586aed4b0e9 [2019-11-28 02:49:53,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:49:53,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:49:53,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:49:53,190 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:49:53,190 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:49:53,190 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Cairo_step2-3.c [2019-11-28 02:49:53,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594ed4d81/65b0bca21d214af4b5d8dd560d0e1fa6/FLAG72fc10556 [2019-11-28 02:49:53,670 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:49:53,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-3.c [2019-11-28 02:49:53,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594ed4d81/65b0bca21d214af4b5d8dd560d0e1fa6/FLAG72fc10556 [2019-11-28 02:49:54,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594ed4d81/65b0bca21d214af4b5d8dd560d0e1fa6 [2019-11-28 02:49:54,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:49:54,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:49:54,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:49:54,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:49:54,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:49:54,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a6e3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54, skipping insertion in model container [2019-11-28 02:49:54,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:49:54,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:49:54,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:49:54,290 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:49:54,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:49:54,316 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:49:54,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54 WrapperNode [2019-11-28 02:49:54,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:49:54,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:49:54,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:49:54,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:49:54,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:49:54,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:49:54,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:49:54,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:49:54,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... [2019-11-28 02:49:54,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:49:54,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:49:54,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:49:54,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:49:54,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 02:49:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:49:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:49:54,614 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:49:54,615 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:49:54,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:49:54 BoogieIcfgContainer [2019-11-28 02:49:54,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:49:54,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:49:54,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:49:54,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:49:54,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:49:54" (1/3) ... [2019-11-28 02:49:54,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7b179c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:49:54, skipping insertion in model container [2019-11-28 02:49:54,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:54" (2/3) ... [2019-11-28 02:49:54,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7b179c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:49:54, skipping insertion in model container [2019-11-28 02:49:54,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:49:54" (3/3) ... [2019-11-28 02:49:54,625 INFO L109 eAbstractionObserver]: Analyzing ICFG Cairo_step2-3.c [2019-11-28 02:49:54,633 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:49:54,639 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-11-28 02:49:54,652 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-11-28 02:49:54,677 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:49:54,677 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:49:54,677 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:49:54,678 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:49:54,678 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:49:54,678 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:49:54,678 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:49:54,678 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:49:54,693 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-28 02:49:54,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:49:54,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2019-11-28 02:49:54,748 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 02:49:54,749 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 02:49:54,749 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 02:49:54,749 INFO L249 CegarLoopResult]: At program point L20(lines 11 21) the Hoare annotation is: true [2019-11-28 02:49:54,750 INFO L246 CegarLoopResult]: For program point L15(lines 15 19) no Hoare annotation was computed. [2019-11-28 02:49:54,751 INFO L249 CegarLoopResult]: At program point L16-2(lines 16 18) the Hoare annotation is: true [2019-11-28 02:49:54,751 INFO L246 CegarLoopResult]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2019-11-28 02:49:54,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:49:54 BoogieIcfgContainer [2019-11-28 02:49:54,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:49:54,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:49:54,766 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:49:54,766 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:49:54,767 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:49:54" (3/4) ... [2019-11-28 02:49:54,770 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:49:54,781 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 02:49:54,781 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 02:49:54,816 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:49:54,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:49:54,819 INFO L168 Benchmark]: Toolchain (without parser) took 752.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -143.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:49:54,820 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:49:54,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.55 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:54,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:54,822 INFO L168 Benchmark]: Boogie Preprocessor took 16.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:49:54,823 INFO L168 Benchmark]: RCFGBuilder took 199.49 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:54,824 INFO L168 Benchmark]: TraceAbstraction took 147.67 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:54,825 INFO L168 Benchmark]: Witness Printer took 51.18 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:54,830 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 250.55 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 81.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 199.49 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 147.67 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Witness Printer took 51.18 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 0 error locations. Result: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...