./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04_false-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-Ex1.04_false-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 b5e1cad19c8f9ba0a76b8f805cd9de41b9662172 ................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 21:26:50,194 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 21:26:50,196 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 21:26:50,208 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 21:26:50,208 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 21:26:50,209 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 21:26:50,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 21:26:50,213 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 21:26:50,215 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 21:26:50,216 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 21:26:50,217 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 21:26:50,217 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 21:26:50,218 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 21:26:50,220 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 21:26:50,221 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 21:26:50,223 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 21:26:50,225 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 21:26:50,228 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 21:26:50,234 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 21:26:50,239 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 21:26:50,240 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 21:26:50,242 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 21:26:50,244 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 21:26:50,244 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 21:26:50,245 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 21:26:50,245 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 21:26:50,247 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 21:26:50,248 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 21:26:50,249 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 21:26:50,250 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 21:26:50,250 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 21:26:50,253 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 21:26:50,253 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 21:26:50,253 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 21:26:50,254 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 21:26:50,255 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 21:26:50,255 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 21:26:50,286 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 21:26:50,286 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 21:26:50,287 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 21:26:50,288 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 21:26:50,289 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 21:26:50,289 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 21:26:50,289 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 21:26:50,289 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 21:26:50,290 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 21:26:50,290 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 21:26:50,290 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 21:26:50,290 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 21:26:50,290 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 21:26:50,291 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 21:26:50,292 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 21:26:50,293 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 21:26:50,293 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 21:26:50,293 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 21:26:50,293 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 21:26:50,293 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 21:26:50,294 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 21:26:50,296 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 21:26:50,296 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 21:26:50,296 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 21:26:50,296 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 21:26:50,296 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 21:26:50,297 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 -> b5e1cad19c8f9ba0a76b8f805cd9de41b9662172 [2019-01-14 21:26:50,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 21:26:50,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 21:26:50,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 21:26:50,387 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 21:26:50,388 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 21:26:50,389 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04_false-no-overflow.c [2019-01-14 21:26:50,449 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/430fd7ded/dfebf3f805474feca319b29e540bf857/FLAGa9997b40e [2019-01-14 21:26:50,860 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 21:26:50,860 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04_false-no-overflow.c [2019-01-14 21:26:50,866 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/430fd7ded/dfebf3f805474feca319b29e540bf857/FLAGa9997b40e [2019-01-14 21:26:51,243 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/430fd7ded/dfebf3f805474feca319b29e540bf857 [2019-01-14 21:26:51,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 21:26:51,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 21:26:51,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 21:26:51,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 21:26:51,251 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 21:26:51,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8b5888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51, skipping insertion in model container [2019-01-14 21:26:51,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 21:26:51,284 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 21:26:51,477 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:26:51,481 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 21:26:51,498 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:26:51,512 INFO L195 MainTranslator]: Completed translation [2019-01-14 21:26:51,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51 WrapperNode [2019-01-14 21:26:51,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 21:26:51,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 21:26:51,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 21:26:51,514 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 21:26:51,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 21:26:51,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 21:26:51,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 21:26:51,550 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 21:26:51,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (1/1) ... [2019-01-14 21:26:51,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 21:26:51,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 21:26:51,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 21:26:51,572 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 21:26:51,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (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 21:26:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 21:26:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 21:26:51,870 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 21:26:51,870 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 21:26:51,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:26:51 BoogieIcfgContainer [2019-01-14 21:26:51,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 21:26:51,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 21:26:51,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 21:26:51,877 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 21:26:51,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 09:26:51" (1/3) ... [2019-01-14 21:26:51,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688bbf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:26:51, skipping insertion in model container [2019-01-14 21:26:51,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:51" (2/3) ... [2019-01-14 21:26:51,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688bbf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:26:51, skipping insertion in model container [2019-01-14 21:26:51,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:26:51" (3/3) ... [2019-01-14 21:26:51,883 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex1.04_false-no-overflow.c [2019-01-14 21:26:51,893 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 21:26:51,900 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-14 21:26:51,912 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-14 21:26:51,939 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 21:26:51,940 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 21:26:51,940 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 21:26:51,940 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 21:26:51,940 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 21:26:51,941 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 21:26:51,941 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 21:26:51,941 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 21:26:51,942 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 21:26:51,954 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-01-14 21:26:51,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 21:26:51,960 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:26:51,962 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 21:26:51,964 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:26:51,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:26:51,970 INFO L82 PathProgramCache]: Analyzing trace with hash 959367, now seen corresponding path program 1 times [2019-01-14 21:26:51,972 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:26:51,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:26:52,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:52,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:26:52,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 21:26:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 21:26:52,074 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 21:26:52,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 09:26:52 BoogieIcfgContainer [2019-01-14 21:26:52,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 21:26:52,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 21:26:52,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 21:26:52,091 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 21:26:52,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:26:51" (3/4) ... [2019-01-14 21:26:52,094 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 21:26:52,132 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 21:26:52,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 21:26:52,133 INFO L168 Benchmark]: Toolchain (without parser) took 886.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:26:52,135 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:26:52,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.73 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-14 21:26:52,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:26:52,137 INFO L168 Benchmark]: Boogie Preprocessor took 22.02 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:26:52,137 INFO L168 Benchmark]: RCFGBuilder took 300.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-01-14 21:26:52,138 INFO L168 Benchmark]: TraceAbstraction took 218.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-14 21:26:52,139 INFO L168 Benchmark]: Witness Printer took 40.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2019-01-14 21:26:52,144 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.73 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 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 35.45 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.02 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 300.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 218.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 40.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, oldx; [L24] x = __VERIFIER_nondet_int() [L25] oldx = __VERIFIER_nondet_int() [L26] x > 1 && 2*x <= oldx [L26] 2*x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...