./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/Bangalore_v4_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 91b1670e Calling Ultimate with: 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 /storage/repos/svcomp/c/termination-crafted/Bangalore_v4_true-no-overflow_true-termination_true-valid-memsafety.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 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:06:04,865 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:06:04,867 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:06:04,881 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:06:04,881 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:06:04,884 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:06:04,887 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:06:04,889 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:06:04,892 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:06:04,896 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:06:04,897 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:06:04,898 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:06:04,899 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:06:04,902 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:06:04,908 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:06:04,910 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:06:04,911 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:06:04,916 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:06:04,919 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:06:04,921 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:06:04,922 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:06:04,925 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:06:04,929 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:06:04,931 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:06:04,932 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:06:04,932 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:06:04,934 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:06:04,934 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:06:04,935 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:06:04,939 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:06:04,940 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:06:04,940 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:06:04,941 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:06:04,942 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:06:04,944 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:06:04,945 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:06:04,945 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:06:04,970 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:06:04,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:06:04,972 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:06:04,973 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:06:04,974 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:06:04,975 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:06:04,975 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:06:04,975 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:06:04,975 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:06:04,976 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:06:04,976 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:06:04,977 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:06:04,977 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:06:04,977 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:06:04,977 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:06:04,978 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:06:04,978 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:06:04,978 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:06:04,978 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:06:04,979 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:06:04,981 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:06:04,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:06:04,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:06:04,981 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:06:04,981 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:06:04,981 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:06:04,982 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:06:04,983 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:06:04,983 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:06:04,983 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 [2018-11-28 23:06:05,043 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:06:05,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:06:05,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:06:05,067 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:06:05,068 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:06:05,068 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Bangalore_v4_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:06:05,128 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad00f4f23/0ada89a6ff364d35a426b265e259dbd6/FLAG01e0cd919 [2018-11-28 23:06:05,566 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:06:05,567 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Bangalore_v4_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:06:05,574 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad00f4f23/0ada89a6ff364d35a426b265e259dbd6/FLAG01e0cd919 [2018-11-28 23:06:05,947 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad00f4f23/0ada89a6ff364d35a426b265e259dbd6 [2018-11-28 23:06:05,950 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:06:05,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:06:05,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:05,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:06:05,957 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:06:05,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:05" (1/1) ... [2018-11-28 23:06:05,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a57947c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:05, skipping insertion in model container [2018-11-28 23:06:05,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:05" (1/1) ... [2018-11-28 23:06:05,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:06:05,987 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:06:06,194 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:06,200 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:06:06,217 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:06,236 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:06:06,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06 WrapperNode [2018-11-28 23:06:06,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:06,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:06,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:06:06,238 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:06:06,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (1/1) ... [2018-11-28 23:06:06,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (1/1) ... [2018-11-28 23:06:06,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:06,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:06:06,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:06:06,263 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:06:06,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (1/1) ... [2018-11-28 23:06:06,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (1/1) ... [2018-11-28 23:06:06,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (1/1) ... [2018-11-28 23:06:06,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (1/1) ... [2018-11-28 23:06:06,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (1/1) ... [2018-11-28 23:06:06,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (1/1) ... [2018-11-28 23:06:06,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (1/1) ... [2018-11-28 23:06:06,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:06:06,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:06:06,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:06:06,295 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:06:06,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (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 [2018-11-28 23:06:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:06:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:06:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:06:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:06:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:06:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:06:06,669 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:06:06,669 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:06:06,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:06 BoogieIcfgContainer [2018-11-28 23:06:06,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:06:06,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:06:06,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:06:06,675 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:06:06,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:06:05" (1/3) ... [2018-11-28 23:06:06,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a23d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:06, skipping insertion in model container [2018-11-28 23:06:06,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:06" (2/3) ... [2018-11-28 23:06:06,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a23d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:06, skipping insertion in model container [2018-11-28 23:06:06,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:06" (3/3) ... [2018-11-28 23:06:06,678 INFO L112 eAbstractionObserver]: Analyzing ICFG Bangalore_v4_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:06:06,686 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:06:06,693 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-28 23:06:06,708 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-28 23:06:06,742 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:06:06,743 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:06:06,743 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:06:06,743 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:06:06,743 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:06:06,744 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:06:06,744 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:06:06,744 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:06:06,744 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:06:06,764 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-28 23:06:06,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 23:06:06,770 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:06,771 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:06,775 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:06,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:06,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1917932215, now seen corresponding path program 1 times [2018-11-28 23:06:06,785 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:06,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:06,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:06,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:06,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:06:06,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:06,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:06,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:06,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:06,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:06,991 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2018-11-28 23:06:07,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:07,151 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2018-11-28 23:06:07,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:07,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-28 23:06:07,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:07,166 INFO L225 Difference]: With dead ends: 28 [2018-11-28 23:06:07,167 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 23:06:07,170 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:07,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 23:06:07,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-11-28 23:06:07,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-28 23:06:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-28 23:06:07,205 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2018-11-28 23:06:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:07,206 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-28 23:06:07,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:07,206 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-28 23:06:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:06:07,207 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:07,207 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:07,207 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:07,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:07,208 INFO L82 PathProgramCache]: Analyzing trace with hash 673643529, now seen corresponding path program 1 times [2018-11-28 23:06:07,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:07,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:07,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:07,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:07,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:07,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:06:07,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:07,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:06:07,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:06:07,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:06:07,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:06:07,260 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2018-11-28 23:06:07,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:07,319 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-11-28 23:06:07,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:06:07,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-28 23:06:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:07,320 INFO L225 Difference]: With dead ends: 13 [2018-11-28 23:06:07,320 INFO L226 Difference]: Without dead ends: 12 [2018-11-28 23:06:07,321 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:06:07,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-28 23:06:07,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 23:06:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 23:06:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-28 23:06:07,325 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-11-28 23:06:07,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:07,325 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-28 23:06:07,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:06:07,326 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-28 23:06:07,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:06:07,326 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:07,326 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:07,327 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:07,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:07,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1168628853, now seen corresponding path program 1 times [2018-11-28 23:06:07,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:07,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:07,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:07,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:07,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:07,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:06:07,391 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:07,391 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:07,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:07,428 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:07,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:06:07,501 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:07,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-28 23:06:07,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:06:07,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:06:07,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:06:07,502 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2018-11-28 23:06:07,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:07,534 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-11-28 23:06:07,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:06:07,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 23:06:07,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:07,536 INFO L225 Difference]: With dead ends: 14 [2018-11-28 23:06:07,536 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:06:07,536 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:06:07,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:06:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:06:07,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:06:07,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:06:07,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-28 23:06:07,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:07,538 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:06:07,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:06:07,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:06:07,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:06:07,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:06:07,659 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 23:06:07,660 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:06:07,660 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:06:07,660 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:06:07,660 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:06:07,660 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:06:07,660 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 22) the Hoare annotation is: true [2018-11-28 23:06:07,661 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-28 23:06:07,661 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-11-28 23:06:07,661 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-28 23:06:07,661 INFO L448 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-28 23:06:07,661 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2018-11-28 23:06:07,661 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 19) the Hoare annotation is: (let ((.cse0 (+ main_~x~0 1)) (.cse1 (<= main_~y~0 2147483647))) (or (and (<= .cse0 main_~y~0) .cse1) (and (<= .cse0 0) .cse1))) [2018-11-28 23:06:07,664 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-28 23:06:07,665 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-11-28 23:06:07,665 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-28 23:06:07,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:06:07 BoogieIcfgContainer [2018-11-28 23:06:07,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:06:07,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:06:07,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:06:07,686 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:06:07,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:06" (3/4) ... [2018-11-28 23:06:07,695 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:06:07,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:06:07,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:06:07,709 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 23:06:07,709 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 23:06:07,710 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:06:07,766 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:06:07,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:06:07,768 INFO L168 Benchmark]: Toolchain (without parser) took 1817.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -100.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:07,770 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:07,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.33 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:07,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.82 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:07,772 INFO L168 Benchmark]: Boogie Preprocessor took 31.72 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:07,772 INFO L168 Benchmark]: RCFGBuilder took 375.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:07,777 INFO L168 Benchmark]: TraceAbstraction took 1013.90 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: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:07,782 INFO L168 Benchmark]: Witness Printer took 81.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:07,793 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.33 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 24.82 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.72 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 375.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1013.90 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: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. * Witness Printer took 81.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 17]: Loop Invariant Derived loop invariant: (x + 1 <= y && y <= 2147483647) || (x + 1 <= 0 && y <= 2147483647) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 9 SDslu, 25 SDs, 0 SdLazy, 28 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 23 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 785 SizeOfPredicates, 2 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...