java -Xmx8000000000 -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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/n.c40_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 13:06:32,778 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 13:06:32,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 13:06:32,793 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 13:06:32,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 13:06:32,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 13:06:32,796 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 13:06:32,798 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 13:06:32,800 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 13:06:32,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 13:06:32,802 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 13:06:32,802 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 13:06:32,803 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 13:06:32,804 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 13:06:32,805 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 13:06:32,806 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 13:06:32,807 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 13:06:32,809 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 13:06:32,812 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 13:06:32,814 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 13:06:32,815 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 13:06:32,816 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 13:06:32,819 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 13:06:32,829 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 13:06:32,852 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 13:06:32,852 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 13:06:32,855 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 13:06:32,856 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 13:06:32,856 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 13:06:32,856 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 13:06:32,856 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 13:06:32,857 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 13:06:32,857 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 13:06:32,857 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 13:06:32,857 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 13:06:32,858 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 13:06:32,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 13:06:32,859 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 13:06:32,860 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 13:06:32,861 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 13:06:32,861 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 13:06:32,861 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 13:06:32,861 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 13:06:32,861 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 13:06:32,862 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 13:06:32,862 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 13:06:32,862 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 13:06:32,864 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 13:06:32,864 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 13:06:32,864 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 13:06:32,864 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 13:06:32,865 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 13:06:32,865 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 13:06:32,865 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 13:06:32,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 13:06:32,866 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 13:06:32,866 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 13:06:32,866 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 13:06:32,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 13:06:32,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 13:06:32,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 13:06:32,976 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 13:06:32,977 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 13:06:32,978 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40_true-unreach-call_true-termination.i [2018-09-15 13:06:33,332 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6850403c7/6243f0249a6a43d3a6c6e738a91c2fdd/FLAG26252c92f [2018-09-15 13:06:33,506 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 13:06:33,507 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40_true-unreach-call_true-termination.i [2018-09-15 13:06:33,514 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6850403c7/6243f0249a6a43d3a6c6e738a91c2fdd/FLAG26252c92f [2018-09-15 13:06:33,539 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6850403c7/6243f0249a6a43d3a6c6e738a91c2fdd [2018-09-15 13:06:33,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 13:06:33,552 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 13:06:33,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 13:06:33,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 13:06:33,560 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 13:06:33,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33, skipping insertion in model container [2018-09-15 13:06:33,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,577 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 13:06:33,769 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:06:33,832 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 13:06:33,839 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:06:33,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33 WrapperNode [2018-09-15 13:06:33,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 13:06:33,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 13:06:33,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 13:06:33,887 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 13:06:33,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 13:06:33,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 13:06:33,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 13:06:33,918 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 13:06:33,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (1/1) ... [2018-09-15 13:06:33,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 13:06:33,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 13:06:33,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 13:06:33,965 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 13:06:33,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (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 [2018-09-15 13:06:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 13:06:34,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 13:06:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 13:06:34,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 13:06:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 13:06:34,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 13:06:34,878 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 13:06:34,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:06:34 BoogieIcfgContainer [2018-09-15 13:06:34,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 13:06:34,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 13:06:34,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 13:06:34,884 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 13:06:34,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:06:33" (1/3) ... [2018-09-15 13:06:34,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbe4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:06:34, skipping insertion in model container [2018-09-15 13:06:34,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:33" (2/3) ... [2018-09-15 13:06:34,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbe4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:06:34, skipping insertion in model container [2018-09-15 13:06:34,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:06:34" (3/3) ... [2018-09-15 13:06:34,888 INFO L112 eAbstractionObserver]: Analyzing ICFG n.c40_true-unreach-call_true-termination.i [2018-09-15 13:06:34,913 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 13:06:34,932 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 13:06:35,009 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 13:06:35,010 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 13:06:35,010 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 13:06:35,010 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 13:06:35,010 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 13:06:35,010 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 13:06:35,011 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 13:06:35,011 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 13:06:35,011 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 13:06:35,027 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-15 13:06:35,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 13:06:35,033 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:06:35,034 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:06:35,035 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:06:35,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1526440521, now seen corresponding path program 1 times [2018-09-15 13:06:35,044 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:06:35,045 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 13:06:35,048 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [17], [19], [22], [25], [27], [37], [38], [39] [2018-09-15 13:06:35,085 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:06:35,086 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:06:35,163 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:06:35,165 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 11 variables. [2018-09-15 13:06:35,184 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:06:35,225 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 93.33% of their original sizes. [2018-09-15 13:06:35,225 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:06:35,243 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:06:35,246 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:06:35,246 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 13:06:35,246 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:06:35,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 13:06:35,257 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 13:06:35,258 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 13:06:35,261 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-09-15 13:06:35,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:06:35,379 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-09-15 13:06:35,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 13:06:35,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-15 13:06:35,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:06:35,389 INFO L225 Difference]: With dead ends: 37 [2018-09-15 13:06:35,390 INFO L226 Difference]: Without dead ends: 15 [2018-09-15 13:06:35,393 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 13:06:35,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-15 13:06:35,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-09-15 13:06:35,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-15 13:06:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-15 13:06:35,433 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-09-15 13:06:35,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:06:35,433 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-15 13:06:35,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 13:06:35,434 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-15 13:06:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 13:06:35,435 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:06:35,435 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:06:35,435 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:06:35,436 INFO L82 PathProgramCache]: Analyzing trace with hash 228063118, now seen corresponding path program 1 times [2018-09-15 13:06:35,436 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:06:35,436 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 13:06:35,436 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [22], [25], [27], [37], [38], [39] [2018-09-15 13:06:35,440 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:06:35,440 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:06:35,601 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 13:06:35,602 INFO L272 AbstractInterpreter]: Visited 13 different actions 382 times. Merged at 7 different actions 368 times. Widened at 1 different actions 49 times. Found 1 fixpoints after 1 different actions. Largest state had 12 variables. [2018-09-15 13:06:35,615 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 13:06:35,640 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 13:06:35,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 01:06:35 BoogieIcfgContainer [2018-09-15 13:06:35,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 13:06:35,641 INFO L168 Benchmark]: Toolchain (without parser) took 2092.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -694.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. [2018-09-15 13:06:35,644 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 13:06:35,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-09-15 13:06:35,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.10 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 13:06:35,646 INFO L168 Benchmark]: Boogie Preprocessor took 46.35 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 13:06:35,647 INFO L168 Benchmark]: RCFGBuilder took 914.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -748.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2018-09-15 13:06:35,648 INFO L168 Benchmark]: TraceAbstraction took 760.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2018-09-15 13:06:35,654 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 332.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 31.10 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.35 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 914.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -748.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 760.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 20]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L5] char x[100], y[100]; [L6] int i,j,k; [L6] int i,j,k; [L6] int i,j,k; [L9] k = __VERIFIER_nondet_int() [L11] i = 0 [L12] COND TRUE x[i] != 0 [L13] y[i] = x[i] [L14] i++ [L14] i++ [L12] COND FALSE !(x[i] != 0) [L16] y[i] = 0 [L18] COND TRUE k >= 0 && k < i [L19] COND TRUE y[k] == 0 [L20] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. UNKNOWN Result, 0.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 11 SDslu, 7 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9666666666666668 AbsIntWeakeningRatio, 0.5 AbsIntAvgWeakeningVarsNumRemoved, 1.5 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/n.c40_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_13-06-35-669.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/n.c40_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_13-06-35-669.csv Received shutdown request...