./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/Copenhagen_disj_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/termination-crafted/Copenhagen_disj_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 66086dde0b191c29902f344504ecd9e9745e5c48 ......................................................................................................................................................................................................................................................... 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 0.1.24-2e94e6a [2019-01-01 20:33:46,465 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:33:46,468 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:33:46,486 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:33:46,486 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:33:46,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:33:46,489 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:33:46,492 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:33:46,496 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:33:46,497 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:33:46,500 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:33:46,501 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:33:46,502 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:33:46,504 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:33:46,508 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:33:46,509 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:33:46,511 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:33:46,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:33:46,524 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:33:46,530 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:33:46,532 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:33:46,533 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:33:46,535 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:33:46,535 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:33:46,535 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:33:46,537 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:33:46,538 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:33:46,539 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:33:46,540 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:33:46,541 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:33:46,541 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:33:46,542 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:33:46,542 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:33:46,542 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:33:46,544 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:33:46,545 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:33:46,546 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:33:46,560 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:33:46,561 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:33:46,562 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:33:46,562 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:33:46,562 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:33:46,563 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:33:46,563 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:33:46,564 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:33:46,564 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:33:46,564 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:33:46,564 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:33:46,564 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:33:46,564 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:33:46,565 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:33:46,565 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:33:46,565 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:33:46,565 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:33:46,565 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:33:46,567 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:33:46,567 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:33:46,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:33:46,567 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:33:46,568 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:33:46,568 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:33:46,568 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:33:46,568 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:33:46,568 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:33:46,570 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 -> 66086dde0b191c29902f344504ecd9e9745e5c48 [2019-01-01 20:33:46,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:33:46,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:33:46,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:33:46,630 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:33:46,631 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:33:46,631 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Copenhagen_disj_false-no-overflow.c [2019-01-01 20:33:46,698 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f41ea0d38/8d2f7d7dc1ba49a4a9ee10c8d4070b9a/FLAG5940bcd9b [2019-01-01 20:33:47,168 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:33:47,170 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Copenhagen_disj_false-no-overflow.c [2019-01-01 20:33:47,177 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f41ea0d38/8d2f7d7dc1ba49a4a9ee10c8d4070b9a/FLAG5940bcd9b [2019-01-01 20:33:47,519 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f41ea0d38/8d2f7d7dc1ba49a4a9ee10c8d4070b9a [2019-01-01 20:33:47,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:33:47,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:33:47,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:33:47,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:33:47,533 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:33:47,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f550f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47, skipping insertion in model container [2019-01-01 20:33:47,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:33:47,574 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:33:47,813 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:33:47,818 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:33:47,838 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:33:47,855 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:33:47,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47 WrapperNode [2019-01-01 20:33:47,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:33:47,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:33:47,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:33:47,857 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:33:47,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:33:47,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:33:47,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:33:47,897 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:33:47,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... [2019-01-01 20:33:47,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:33:47,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:33:47,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:33:47,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:33:47,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:33:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:33:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:33:48,300 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:33:48,301 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 20:33:48,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:33:48 BoogieIcfgContainer [2019-01-01 20:33:48,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:33:48,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:33:48,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:33:48,307 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:33:48,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:33:47" (1/3) ... [2019-01-01 20:33:48,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5fea7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:33:48, skipping insertion in model container [2019-01-01 20:33:48,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:33:47" (2/3) ... [2019-01-01 20:33:48,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5fea7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:33:48, skipping insertion in model container [2019-01-01 20:33:48,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:33:48" (3/3) ... [2019-01-01 20:33:48,312 INFO L112 eAbstractionObserver]: Analyzing ICFG Copenhagen_disj_false-no-overflow.c [2019-01-01 20:33:48,322 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:33:48,331 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-01 20:33:48,351 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-01 20:33:48,390 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:33:48,391 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:33:48,391 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:33:48,391 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:33:48,391 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:33:48,392 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:33:48,392 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:33:48,392 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:33:48,392 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:33:48,411 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-01 20:33:48,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-01 20:33:48,423 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:33:48,425 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-01 20:33:48,429 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:33:48,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:33:48,437 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-01-01 20:33:48,439 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:33:48,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:33:48,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:33:48,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:33:48,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:33:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:33:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:33:48,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:33:48,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-01 20:33:48,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:33:48,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:33:48,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:33:48,700 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-01-01 20:33:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:33:48,846 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-01-01 20:33:48,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:33:48,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-01 20:33:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:33:48,858 INFO L225 Difference]: With dead ends: 26 [2019-01-01 20:33:48,859 INFO L226 Difference]: Without dead ends: 17 [2019-01-01 20:33:48,863 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:33:48,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-01 20:33:48,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2019-01-01 20:33:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-01 20:33:48,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-01-01 20:33:48,899 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2019-01-01 20:33:48,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:33:48,899 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-01-01 20:33:48,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:33:48,900 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-01-01 20:33:48,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:33:48,900 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:33:48,900 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:33:48,902 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:33:48,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:33:48,902 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-01-01 20:33:48,902 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:33:48,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:33:48,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:33:48,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:33:48,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:33:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:33:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:33:48,938 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-01 20:33:48,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:33:48 BoogieIcfgContainer [2019-01-01 20:33:48,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:33:48,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:33:48,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:33:48,957 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:33:48,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:33:48" (3/4) ... [2019-01-01 20:33:48,959 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-01 20:33:49,000 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:33:49,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:33:49,001 INFO L168 Benchmark]: Toolchain (without parser) took 1476.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -112.1 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-01-01 20:33:49,004 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. [2019-01-01 20:33:49,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.99 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:33:49,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.53 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:33:49,006 INFO L168 Benchmark]: Boogie Preprocessor took 24.30 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:33:49,007 INFO L168 Benchmark]: RCFGBuilder took 379.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-01 20:33:49,008 INFO L168 Benchmark]: TraceAbstraction took 653.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-01-01 20:33:49,009 INFO L168 Benchmark]: Witness Printer took 44.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:33:49,014 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 328.99 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 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 39.53 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.30 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 379.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 653.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Witness Printer took 44.40 ms. Allocated memory is still 1.1 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int x, y, oldx; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] COND TRUE x >= 0 || y >= 0 [L17] oldx = x [L18] y - 1 - 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: 9 SDtfs, 10 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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...