./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/NonTerminationSimple7_true-no-overflow_false-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2e94e6aa 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/NonTerminationSimple7_true-no-overflow_false-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 e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 ............................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 20:34:34,145 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:34:34,147 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:34:34,160 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:34:34,161 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:34:34,162 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:34:34,163 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:34:34,166 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:34:34,167 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:34:34,168 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:34:34,169 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:34:34,169 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:34:34,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:34:34,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:34:34,172 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:34:34,173 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:34:34,174 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:34:34,176 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:34:34,178 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:34:34,180 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:34:34,181 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:34:34,182 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:34:34,185 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:34:34,185 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:34:34,185 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:34:34,186 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:34:34,187 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:34:34,188 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:34:34,189 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:34:34,190 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:34:34,190 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:34:34,191 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:34:34,191 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:34:34,191 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:34:34,193 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:34:34,193 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:34:34,194 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:34:34,218 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:34:34,219 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:34:34,221 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:34:34,221 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:34:34,222 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:34:34,222 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:34:34,222 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:34:34,223 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:34:34,223 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:34:34,224 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:34:34,224 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:34:34,224 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:34:34,224 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:34:34,224 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:34:34,224 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:34:34,225 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:34:34,226 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:34:34,226 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:34:34,226 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:34:34,226 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:34:34,226 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:34:34,227 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:34:34,227 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:34:34,227 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:34:34,227 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:34:34,227 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:34:34,227 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:34:34,231 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 -> e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 [2019-01-01 20:34:34,301 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:34:34,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:34:34,330 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:34:34,332 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:34:34,332 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:34:34,334 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/NonTerminationSimple7_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-01 20:34:34,407 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503f8ed91/a302d3913d4c4c1597226cbd5f332430/FLAG64cb2046c [2019-01-01 20:34:34,868 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:34:34,869 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/NonTerminationSimple7_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-01 20:34:34,875 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503f8ed91/a302d3913d4c4c1597226cbd5f332430/FLAG64cb2046c [2019-01-01 20:34:35,238 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503f8ed91/a302d3913d4c4c1597226cbd5f332430 [2019-01-01 20:34:35,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:34:35,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:34:35,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:34:35,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:34:35,252 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:34:35,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76332f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35, skipping insertion in model container [2019-01-01 20:34:35,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:34:35,284 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:34:35,487 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:34:35,495 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:34:35,514 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:34:35,531 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:34:35,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35 WrapperNode [2019-01-01 20:34:35,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:34:35,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:34:35,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:34:35,534 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:34:35,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:34:35,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:34:35,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:34:35,575 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:34:35,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (1/1) ... [2019-01-01 20:34:35,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:34:35,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:34:35,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:34:35,603 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:34:35,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (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 [2019-01-01 20:34:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:34:35,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:34:36,004 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:34:36,005 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 20:34:36,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:34:36 BoogieIcfgContainer [2019-01-01 20:34:36,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:34:36,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:34:36,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:34:36,010 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:34:36,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:34:35" (1/3) ... [2019-01-01 20:34:36,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9f8b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:34:36, skipping insertion in model container [2019-01-01 20:34:36,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:35" (2/3) ... [2019-01-01 20:34:36,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9f8b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:34:36, skipping insertion in model container [2019-01-01 20:34:36,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:34:36" (3/3) ... [2019-01-01 20:34:36,014 INFO L112 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple7_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-01 20:34:36,025 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:34:36,034 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-01 20:34:36,055 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-01 20:34:36,090 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:34:36,091 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:34:36,091 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:34:36,091 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:34:36,091 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:34:36,091 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:34:36,091 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:34:36,092 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:34:36,092 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:34:36,109 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-01 20:34:36,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:34:36,118 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:34:36,119 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:34:36,125 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:34:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:34:36,136 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2019-01-01 20:34:36,138 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:34:36,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:34:36,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:36,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:34:36,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:34:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:34:36,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:34:36,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:34:36,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 20:34:36,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 20:34:36,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:34:36,514 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2019-01-01 20:34:36,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:34:36,666 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2019-01-01 20:34:36,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 20:34:36,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-01 20:34:36,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:34:36,681 INFO L225 Difference]: With dead ends: 22 [2019-01-01 20:34:36,681 INFO L226 Difference]: Without dead ends: 9 [2019-01-01 20:34:36,685 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 20:34:36,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-01 20:34:36,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-01-01 20:34:36,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-01 20:34:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-01-01 20:34:36,722 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2019-01-01 20:34:36,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:34:36,723 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-01-01 20:34:36,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 20:34:36,723 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-01-01 20:34:36,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-01 20:34:36,724 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:34:36,724 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-01 20:34:36,724 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:34:36,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:34:36,725 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2019-01-01 20:34:36,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:34:36,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:34:36,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:36,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:34:36,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:34:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:34:36,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:34:36,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 20:34:36,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 20:34:36,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 20:34:36,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:34:36,786 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-01-01 20:34:36,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:34:36,860 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-01-01 20:34:36,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 20:34:36,861 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-01-01 20:34:36,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:34:36,862 INFO L225 Difference]: With dead ends: 9 [2019-01-01 20:34:36,862 INFO L226 Difference]: Without dead ends: 8 [2019-01-01 20:34:36,863 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 [2019-01-01 20:34:36,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-01 20:34:36,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-01 20:34:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-01 20:34:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-01 20:34:36,867 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-01-01 20:34:36,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:34:36,867 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-01 20:34:36,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 20:34:36,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-01 20:34:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-01 20:34:36,868 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:34:36,868 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-01-01 20:34:36,869 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:34:36,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:34:36,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1537667284, now seen corresponding path program 1 times [2019-01-01 20:34:36,869 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:34:36,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:34:36,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:36,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:34:36,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:34:37,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:34:37,003 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 20:34:37,003 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 [2019-01-01 20:34:37,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:34:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:34:37,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 20:34:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:34:37,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-01 20:34:37,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2019-01-01 20:34:37,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 20:34:37,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 20:34:37,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-01 20:34:37,392 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 8 states. [2019-01-01 20:34:37,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:34:37,444 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-01-01 20:34:37,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 20:34:37,445 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-01-01 20:34:37,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:34:37,446 INFO L225 Difference]: With dead ends: 8 [2019-01-01 20:34:37,446 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 20:34:37,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-01 20:34:37,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 20:34:37,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 20:34:37,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 20:34:37,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 20:34:37,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-01-01 20:34:37,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:34:37,449 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 20:34:37,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 20:34:37,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 20:34:37,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 20:34:37,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-01 20:34:37,599 WARN L181 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 9 [2019-01-01 20:34:37,606 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-01 20:34:37,606 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-01-01 20:34:37,607 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-01-01 20:34:37,607 INFO L448 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-01-01 20:34:37,607 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2019-01-01 20:34:37,607 INFO L448 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2019-01-01 20:34:37,607 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-01 20:34:37,607 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-01 20:34:37,607 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-01-01 20:34:37,608 INFO L444 ceAbstractionStarter]: At program point L20(lines 10 21) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-01-01 20:34:37,608 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 18) the Hoare annotation is: (and (<= ULTIMATE.start_main_~c~0 0) (<= (+ ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) 2147483647) (<= 0 ULTIMATE.start_main_~c~0)) [2019-01-01 20:34:37,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:34:37 BoogieIcfgContainer [2019-01-01 20:34:37,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:34:37,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:34:37,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:34:37,625 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:34:37,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:34:36" (3/4) ... [2019-01-01 20:34:37,629 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 20:34:37,640 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 20:34:37,640 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-01 20:34:37,683 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:34:37,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:34:37,684 INFO L168 Benchmark]: Toolchain (without parser) took 2441.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -83.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:37,685 INFO L168 Benchmark]: CDTParser took 0.20 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. [2019-01-01 20:34:37,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.09 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:37,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.96 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:34:37,687 INFO L168 Benchmark]: Boogie Preprocessor took 27.58 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:34:37,688 INFO L168 Benchmark]: RCFGBuilder took 402.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:37,688 INFO L168 Benchmark]: TraceAbstraction took 1617.76 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: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:37,689 INFO L168 Benchmark]: Witness Printer took 59.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 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. [2019-01-01 20:34:37,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 287.09 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.96 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.58 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 402.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1617.76 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: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. * Witness Printer took 59.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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: 16]: Loop Invariant Derived loop invariant: (c <= 0 && c + x <= 2147483647) && 0 <= c - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 28 SDslu, 3 SDs, 0 SdLazy, 26 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 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...