./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0ed9222f 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-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.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 ef49038d2ab74dd97b86bf2af92359124ff338d3 ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 21:39:13,206 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 21:39:13,208 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 21:39:13,220 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 21:39:13,220 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 21:39:13,221 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 21:39:13,223 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 21:39:13,225 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 21:39:13,227 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 21:39:13,228 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 21:39:13,229 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 21:39:13,229 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 21:39:13,230 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 21:39:13,232 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 21:39:13,233 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 21:39:13,234 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 21:39:13,235 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 21:39:13,237 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 21:39:13,239 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 21:39:13,241 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 21:39:13,242 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 21:39:13,243 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 21:39:13,246 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 21:39:13,246 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 21:39:13,246 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 21:39:13,247 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 21:39:13,249 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 21:39:13,250 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 21:39:13,251 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 21:39:13,252 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 21:39:13,252 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 21:39:13,253 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 21:39:13,253 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 21:39:13,254 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 21:39:13,255 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 21:39:13,256 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 21:39:13,256 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 21:39:13,272 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 21:39:13,273 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 21:39:13,275 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 21:39:13,275 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 21:39:13,275 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 21:39:13,275 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 21:39:13,275 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 21:39:13,276 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 21:39:13,279 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 21:39:13,279 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 21:39:13,279 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 21:39:13,279 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 21:39:13,279 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 21:39:13,280 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 21:39:13,280 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 21:39:13,280 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 21:39:13,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 21:39:13,280 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 21:39:13,281 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 21:39:13,282 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 21:39:13,282 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 21:39:13,282 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 21:39:13,282 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 21:39:13,282 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 21:39:13,283 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 21:39:13,283 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 21:39:13,283 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 -> ef49038d2ab74dd97b86bf2af92359124ff338d3 [2019-01-14 21:39:13,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 21:39:13,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 21:39:13,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 21:39:13,361 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 21:39:13,361 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 21:39:13,362 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2019-01-14 21:39:13,428 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b42826f4d/97204222751e4ca0bb20138d846e29d8/FLAG810d22f0b [2019-01-14 21:39:13,845 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 21:39:13,846 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2019-01-14 21:39:13,851 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b42826f4d/97204222751e4ca0bb20138d846e29d8/FLAG810d22f0b [2019-01-14 21:39:14,221 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b42826f4d/97204222751e4ca0bb20138d846e29d8 [2019-01-14 21:39:14,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 21:39:14,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 21:39:14,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 21:39:14,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 21:39:14,231 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 21:39:14,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8b7262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14, skipping insertion in model container [2019-01-14 21:39:14,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 21:39:14,265 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 21:39:14,488 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:39:14,496 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 21:39:14,514 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:39:14,530 INFO L195 MainTranslator]: Completed translation [2019-01-14 21:39:14,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14 WrapperNode [2019-01-14 21:39:14,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 21:39:14,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 21:39:14,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 21:39:14,532 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 21:39:14,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 21:39:14,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 21:39:14,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 21:39:14,570 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 21:39:14,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (1/1) ... [2019-01-14 21:39:14,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 21:39:14,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 21:39:14,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 21:39:14,592 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 21:39:14,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (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 [2019-01-14 21:39:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 21:39:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 21:39:14,873 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 21:39:14,874 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 21:39:14,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:39:14 BoogieIcfgContainer [2019-01-14 21:39:14,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 21:39:14,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 21:39:14,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 21:39:14,880 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 21:39:14,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 09:39:14" (1/3) ... [2019-01-14 21:39:14,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b57772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:39:14, skipping insertion in model container [2019-01-14 21:39:14,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:39:14" (2/3) ... [2019-01-14 21:39:14,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b57772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:39:14, skipping insertion in model container [2019-01-14 21:39:14,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:39:14" (3/3) ... [2019-01-14 21:39:14,885 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2019-01-14 21:39:14,895 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 21:39:14,903 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-14 21:39:14,920 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-14 21:39:14,953 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 21:39:14,953 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 21:39:14,954 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 21:39:14,954 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 21:39:14,954 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 21:39:14,954 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 21:39:14,954 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 21:39:14,955 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 21:39:14,955 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 21:39:14,969 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-01-14 21:39:14,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-14 21:39:14,975 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:39:14,976 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-14 21:39:14,978 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:39:14,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:39:14,985 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-01-14 21:39:14,987 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:39:14,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:39:15,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:39:15,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:39:15,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:39:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:39:15,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:39:15,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:39:15,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:39:15,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 21:39:15,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 21:39:15,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 21:39:15,245 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2019-01-14 21:39:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:39:15,390 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-01-14 21:39:15,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 21:39:15,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-01-14 21:39:15,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:39:15,401 INFO L225 Difference]: With dead ends: 14 [2019-01-14 21:39:15,402 INFO L226 Difference]: Without dead ends: 5 [2019-01-14 21:39:15,405 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 21:39:15,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-01-14 21:39:15,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-01-14 21:39:15,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-14 21:39:15,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-01-14 21:39:15,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-01-14 21:39:15,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:39:15,438 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-14 21:39:15,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 21:39:15,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-14 21:39:15,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 21:39:15,439 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:39:15,440 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 21:39:15,441 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:39:15,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:39:15,442 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-01-14 21:39:15,442 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:39:15,442 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:39:15,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:39:15,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:39:15,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:39:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:39:15,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:39:15,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:39:15,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:39:15,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 21:39:15,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 21:39:15,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:39:15,473 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 3 states. [2019-01-14 21:39:15,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:39:15,525 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-01-14 21:39:15,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 21:39:15,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 21:39:15,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:39:15,527 INFO L225 Difference]: With dead ends: 5 [2019-01-14 21:39:15,527 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 21:39:15,528 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 [2019-01-14 21:39:15,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 21:39:15,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 21:39:15,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 21:39:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 21:39:15,529 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-01-14 21:39:15,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:39:15,529 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 21:39:15,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 21:39:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 21:39:15,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 21:39:15,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 21:39:15,553 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 21:39:15,554 INFO L444 ceAbstractionStarter]: At program point L30(lines 22 31) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-01-14 21:39:15,554 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 21:39:15,554 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 21:39:15,554 INFO L448 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2019-01-14 21:39:15,555 INFO L448 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-01-14 21:39:15,555 INFO L444 ceAbstractionStarter]: At program point L26-2(lines 26 29) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-01-14 21:39:15,555 INFO L448 ceAbstractionStarter]: For program point L26-3(lines 26 29) no Hoare annotation was computed. [2019-01-14 21:39:15,555 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-01-14 21:39:15,555 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-01-14 21:39:15,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 09:39:15 BoogieIcfgContainer [2019-01-14 21:39:15,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 21:39:15,567 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 21:39:15,567 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 21:39:15,568 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 21:39:15,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:39:14" (3/4) ... [2019-01-14 21:39:15,572 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 21:39:15,583 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 21:39:15,583 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 21:39:15,631 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 21:39:15,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 21:39:15,633 INFO L168 Benchmark]: Toolchain (without parser) took 1408.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-01-14 21:39:15,637 INFO L168 Benchmark]: CDTParser took 0.15 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. [2019-01-14 21:39:15,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 21:39:15,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.62 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:39:15,639 INFO L168 Benchmark]: Boogie Preprocessor took 21.58 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:39:15,640 INFO L168 Benchmark]: RCFGBuilder took 284.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-14 21:39:15,641 INFO L168 Benchmark]: TraceAbstraction took 689.92 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-01-14 21:39:15,643 INFO L168 Benchmark]: Witness Printer took 64.79 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. [2019-01-14 21:39:15,647 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 304.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 37.62 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.58 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 284.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 689.92 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Witness Printer took 64.79 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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: 26]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 12 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...