./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.02_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-Ex2.02_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 2a919b25da354c99a27159953a248cd7db9b3c80 ........................................................................................................................................................................................................................................................ 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 01:17:54,485 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:17:54,487 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:17:54,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:17:54,504 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:17:54,505 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:17:54,508 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:17:54,510 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:17:54,512 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:17:54,513 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:17:54,522 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:17:54,522 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:17:54,523 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:17:54,525 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:17:54,528 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:17:54,529 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:17:54,530 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:17:54,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:17:54,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:17:54,541 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:17:54,542 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:17:54,546 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:17:54,549 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:17:54,549 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:17:54,551 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:17:54,552 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:17:54,552 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:17:54,553 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:17:54,554 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:17:54,556 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:17:54,557 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:17:54,557 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:17:54,557 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:17:54,558 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:17:54,558 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:17:54,559 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:17:54,559 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 01:17:54,586 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:17:54,586 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:17:54,588 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:17:54,588 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:17:54,588 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:17:54,588 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:17:54,589 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:17:54,589 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:17:54,589 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:17:54,589 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:17:54,589 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:17:54,589 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:17:54,590 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:17:54,590 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:17:54,590 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:17:54,591 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:17:54,591 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:17:54,591 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:17:54,591 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:17:54,591 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:17:54,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:17:54,592 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:17:54,592 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:17:54,592 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:17:54,592 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:17:54,592 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:17:54,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:17:54,594 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 -> 2a919b25da354c99a27159953a248cd7db9b3c80 [2019-01-14 01:17:54,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:17:54,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:17:54,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:17:54,663 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:17:54,664 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:17:54,665 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.02_false-no-overflow.c [2019-01-14 01:17:54,719 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46867efc9/cb49a8af13414a18981a1535b67f33a4/FLAGe31a7cc47 [2019-01-14 01:17:55,156 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:17:55,157 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.02_false-no-overflow.c [2019-01-14 01:17:55,166 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46867efc9/cb49a8af13414a18981a1535b67f33a4/FLAGe31a7cc47 [2019-01-14 01:17:55,507 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46867efc9/cb49a8af13414a18981a1535b67f33a4 [2019-01-14 01:17:55,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:17:55,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:17:55,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:17:55,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:17:55,519 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:17:55,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fc82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55, skipping insertion in model container [2019-01-14 01:17:55,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:17:55,560 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:17:55,767 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:17:55,773 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:17:55,791 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:17:55,807 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:17:55,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55 WrapperNode [2019-01-14 01:17:55,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:17:55,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:17:55,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:17:55,809 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:17:55,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:17:55,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:17:55,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:17:55,849 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:17:55,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (1/1) ... [2019-01-14 01:17:55,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:17:55,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:17:55,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:17:55,875 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:17:55,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (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 01:17:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:17:56,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:17:56,239 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:17:56,240 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 01:17:56,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:17:56 BoogieIcfgContainer [2019-01-14 01:17:56,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:17:56,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:17:56,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:17:56,245 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:17:56,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:17:55" (1/3) ... [2019-01-14 01:17:56,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b00a5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:17:56, skipping insertion in model container [2019-01-14 01:17:56,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:55" (2/3) ... [2019-01-14 01:17:56,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b00a5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:17:56, skipping insertion in model container [2019-01-14 01:17:56,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:17:56" (3/3) ... [2019-01-14 01:17:56,248 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.02_false-no-overflow.c [2019-01-14 01:17:56,257 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:17:56,264 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-14 01:17:56,277 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-14 01:17:56,321 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:17:56,321 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:17:56,321 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:17:56,321 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:17:56,322 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:17:56,322 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:17:56,322 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:17:56,322 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:17:56,322 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:17:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-14 01:17:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-14 01:17:56,345 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:56,345 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-14 01:17:56,350 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:56,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:56,365 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-01-14 01:17:56,367 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:56,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:56,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:56,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:56,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:56,613 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 01:17:56,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:56,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:17:56,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 01:17:56,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 01:17:56,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 01:17:56,637 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-01-14 01:17:56,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:56,758 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-01-14 01:17:56,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 01:17:56,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-01-14 01:17:56,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:56,773 INFO L225 Difference]: With dead ends: 18 [2019-01-14 01:17:56,773 INFO L226 Difference]: Without dead ends: 8 [2019-01-14 01:17:56,777 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 01:17:56,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-14 01:17:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 01:17:56,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 01:17:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-14 01:17:56,811 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 3 [2019-01-14 01:17:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:56,811 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-14 01:17:56,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 01:17:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-14 01:17:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:17:56,812 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:56,812 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:17:56,813 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:56,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:56,813 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-01-14 01:17:56,813 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:56,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:56,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:56,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:56,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:17:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:17:56,843 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 01:17:56,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:17:56 BoogieIcfgContainer [2019-01-14 01:17:56,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:17:56,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:17:56,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:17:56,860 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:17:56,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:17:56" (3/4) ... [2019-01-14 01:17:56,863 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 01:17:56,899 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:17:56,899 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:17:56,900 INFO L168 Benchmark]: Toolchain (without parser) took 1387.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:56,901 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:56,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.33 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:56,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.49 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:56,903 INFO L168 Benchmark]: Boogie Preprocessor took 21.53 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:56,904 INFO L168 Benchmark]: RCFGBuilder took 366.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:56,905 INFO L168 Benchmark]: TraceAbstraction took 617.99 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:56,906 INFO L168 Benchmark]: Witness Printer took 38.97 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 01:17:56,910 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 294.33 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.49 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.53 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 366.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 617.99 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 38.97 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: - CounterExampleResult [Line: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < 0 [L27] x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 11 SDslu, 3 SDs, 0 SdLazy, 12 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...