./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3_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/PodelskiRybalchenko-TACAS2011-Fig3_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 c49ca63b076bdfdfd4da2b39429bac3c0da8332d ........................................................................................................................................................................................................................................................................................................................................................................ 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 01:19:24,637 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:19:24,638 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:19:24,650 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:19:24,650 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:19:24,651 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:19:24,653 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:19:24,654 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:19:24,656 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:19:24,657 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:19:24,658 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:19:24,658 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:19:24,659 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:19:24,660 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:19:24,661 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:19:24,662 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:19:24,663 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:19:24,666 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:19:24,672 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:19:24,674 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:19:24,680 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:19:24,683 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:19:24,685 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:19:24,685 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:19:24,686 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:19:24,687 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:19:24,688 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:19:24,688 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:19:24,689 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:19:24,690 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:19:24,691 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:19:24,691 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:19:24,692 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:19:24,692 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:19:24,693 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:19:24,693 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:19:24,694 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 01:19:24,709 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:19:24,709 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:19:24,710 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:19:24,711 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:19:24,711 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:19:24,711 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:19:24,711 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:19:24,711 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:19:24,712 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:19:24,712 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:19:24,712 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:19:24,712 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:19:24,712 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:19:24,712 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:19:24,713 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:19:24,713 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:19:24,713 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:19:24,713 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:19:24,713 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:19:24,713 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:19:24,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:19:24,714 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:19:24,714 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:19:24,714 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:19:24,714 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:19:24,714 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:19:24,715 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:19:24,715 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 -> c49ca63b076bdfdfd4da2b39429bac3c0da8332d [2019-01-14 01:19:24,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:19:24,781 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:19:24,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:19:24,786 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:19:24,787 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:19:24,788 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3_false-no-overflow.c [2019-01-14 01:19:24,853 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c952abbc2/f86b9254f69d43448616b93190e33d50/FLAG0291b6790 [2019-01-14 01:19:25,270 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:19:25,271 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3_false-no-overflow.c [2019-01-14 01:19:25,277 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c952abbc2/f86b9254f69d43448616b93190e33d50/FLAG0291b6790 [2019-01-14 01:19:25,644 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c952abbc2/f86b9254f69d43448616b93190e33d50 [2019-01-14 01:19:25,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:19:25,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:19:25,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:19:25,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:19:25,653 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:19:25,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:25,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1a718d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25, skipping insertion in model container [2019-01-14 01:19:25,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:25,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:19:25,681 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:19:25,908 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:19:25,916 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:19:25,938 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:19:25,958 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:19:25,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25 WrapperNode [2019-01-14 01:19:25,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:19:25,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:19:25,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:19:25,963 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:19:25,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:25,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:26,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:19:26,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:19:26,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:19:26,007 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:19:26,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:26,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:26,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:26,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:26,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:26,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:26,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (1/1) ... [2019-01-14 01:19:26,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:19:26,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:19:26,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:19:26,036 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:19:26,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (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 01:19:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:19:26,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:19:26,402 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:19:26,402 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 01:19:26,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:19:26 BoogieIcfgContainer [2019-01-14 01:19:26,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:19:26,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:19:26,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:19:26,410 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:19:26,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:19:25" (1/3) ... [2019-01-14 01:19:26,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db20248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:19:26, skipping insertion in model container [2019-01-14 01:19:26,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:19:25" (2/3) ... [2019-01-14 01:19:26,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db20248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:19:26, skipping insertion in model container [2019-01-14 01:19:26,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:19:26" (3/3) ... [2019-01-14 01:19:26,415 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig3_false-no-overflow.c [2019-01-14 01:19:26,428 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:19:26,437 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-01-14 01:19:26,456 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-01-14 01:19:26,487 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:19:26,487 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:19:26,488 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:19:26,488 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:19:26,488 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:19:26,488 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:19:26,488 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:19:26,488 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:19:26,488 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:19:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-01-14 01:19:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:19:26,516 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:19:26,517 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:19:26,519 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:19:26,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:19:26,526 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-01-14 01:19:26,530 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:19:26,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:19:26,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:26,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:19:26,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:19:26,675 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 01:19:26,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:19:26,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:19:26,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 01:19:26,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 01:19:26,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 01:19:26,694 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-01-14 01:19:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:19:26,860 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-01-14 01:19:26,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 01:19:26,863 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-14 01:19:26,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:19:26,874 INFO L225 Difference]: With dead ends: 46 [2019-01-14 01:19:26,874 INFO L226 Difference]: Without dead ends: 29 [2019-01-14 01:19:26,877 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 01:19:26,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-01-14 01:19:26,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18. [2019-01-14 01:19:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 01:19:26,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-01-14 01:19:26,913 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 4 [2019-01-14 01:19:26,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:19:26,913 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-01-14 01:19:26,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 01:19:26,914 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-01-14 01:19:26,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:19:26,914 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:19:26,914 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:19:26,915 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:19:26,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:19:26,915 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-01-14 01:19:26,916 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:19:26,916 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:19:26,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:26,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:19:26,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:19:26,965 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 01:19:26,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:19:26,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:19:26,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 01:19:26,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 01:19:26,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 01:19:26,969 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2019-01-14 01:19:27,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:19:27,145 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2019-01-14 01:19:27,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 01:19:27,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-14 01:19:27,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:19:27,147 INFO L225 Difference]: With dead ends: 31 [2019-01-14 01:19:27,147 INFO L226 Difference]: Without dead ends: 30 [2019-01-14 01:19:27,148 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 01:19:27,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-01-14 01:19:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2019-01-14 01:19:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-01-14 01:19:27,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-01-14 01:19:27,159 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 4 [2019-01-14 01:19:27,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:19:27,160 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-01-14 01:19:27,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 01:19:27,160 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-01-14 01:19:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 01:19:27,160 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:19:27,161 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 01:19:27,161 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:19:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:19:27,161 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-01-14 01:19:27,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:19:27,164 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:19:27,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:27,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:19:27,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:19:27,199 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 01:19:27,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:19:27,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:19:27,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:19:27,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:19:27,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:19:27,200 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2019-01-14 01:19:27,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:19:27,222 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-01-14 01:19:27,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:19:27,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-14 01:19:27,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:19:27,224 INFO L225 Difference]: With dead ends: 22 [2019-01-14 01:19:27,224 INFO L226 Difference]: Without dead ends: 21 [2019-01-14 01:19:27,224 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:19:27,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-01-14 01:19:27,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-01-14 01:19:27,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-14 01:19:27,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-01-14 01:19:27,228 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 5 [2019-01-14 01:19:27,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:19:27,229 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-01-14 01:19:27,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:19:27,229 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-01-14 01:19:27,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 01:19:27,229 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:19:27,230 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 01:19:27,230 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:19:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:19:27,230 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-01-14 01:19:27,230 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:19:27,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:19:27,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:27,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:19:27,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:19:27,263 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 01:19:27,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:19:27,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:19:27,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:19:27,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:19:27,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:19:27,264 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2019-01-14 01:19:27,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:19:27,298 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-01-14 01:19:27,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:19:27,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-14 01:19:27,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:19:27,299 INFO L225 Difference]: With dead ends: 21 [2019-01-14 01:19:27,299 INFO L226 Difference]: Without dead ends: 19 [2019-01-14 01:19:27,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:19:27,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-14 01:19:27,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-01-14 01:19:27,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-14 01:19:27,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-01-14 01:19:27,304 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 5 [2019-01-14 01:19:27,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:19:27,304 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-01-14 01:19:27,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:19:27,304 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-01-14 01:19:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 01:19:27,305 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:19:27,305 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 01:19:27,305 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:19:27,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:19:27,306 INFO L82 PathProgramCache]: Analyzing trace with hash 925954989, now seen corresponding path program 1 times [2019-01-14 01:19:27,306 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:19:27,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:19:27,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:27,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:19:27,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:19:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:19:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:19:27,352 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 01:19:27,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:19:27 BoogieIcfgContainer [2019-01-14 01:19:27,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:19:27,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:19:27,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:19:27,376 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:19:27,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:19:26" (3/4) ... [2019-01-14 01:19:27,378 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 01:19:27,417 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:19:27,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:19:27,418 INFO L168 Benchmark]: Toolchain (without parser) took 1770.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -119.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-01-14 01:19:27,420 INFO L168 Benchmark]: CDTParser took 0.18 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 01:19:27,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.12 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:19:27,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.08 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:19:27,422 INFO L168 Benchmark]: Boogie Preprocessor took 28.67 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:19:27,422 INFO L168 Benchmark]: RCFGBuilder took 369.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-01-14 01:19:27,423 INFO L168 Benchmark]: TraceAbstraction took 969.28 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2019-01-14 01:19:27,424 INFO L168 Benchmark]: Witness Printer took 41.79 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-14 01:19:27,429 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 312.12 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.08 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.67 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 369.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 969.28 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * Witness Printer took 41.79 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 [L22] old_x + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. UNSAFE Result, 0.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 SDtfs, 71 SDslu, 42 SDs, 0 SdLazy, 48 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=2, 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, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...