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 0.1.23-69f5bdd-m [2018-09-19 05:01:00,162 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 05:01:00,164 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 05:01:00,176 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 05:01:00,177 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 05:01:00,178 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 05:01:00,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 05:01:00,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 05:01:00,183 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 05:01:00,184 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 05:01:00,185 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 05:01:00,185 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 05:01:00,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 05:01:00,189 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 05:01:00,196 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 05:01:00,200 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 05:01:00,201 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 05:01:00,206 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 05:01:00,208 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 05:01:00,212 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 05:01:00,213 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 05:01:00,215 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 05:01:00,221 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 05:01:00,236 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 [2018-09-19 05:01:00,269 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 05:01:00,269 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 05:01:00,272 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 05:01:00,272 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 05:01:00,273 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 05:01:00,273 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 05:01:00,273 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 05:01:00,273 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 05:01:00,274 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 05:01:00,274 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 05:01:00,274 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 05:01:00,274 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 05:01:00,275 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 05:01:00,276 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 05:01:00,276 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 05:01:00,276 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 05:01:00,277 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 05:01:00,277 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 05:01:00,277 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 05:01:00,277 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 05:01:00,277 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 05:01:00,279 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 05:01:00,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 05:01:00,280 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 05:01:00,280 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 05:01:00,280 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 05:01:00,280 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 05:01:00,281 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 05:01:00,281 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 05:01:00,281 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 05:01:00,281 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 05:01:00,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 05:01:00,282 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 05:01:00,282 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 05:01:00,282 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 05:01:00,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 05:01:00,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 05:01:00,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 05:01:00,383 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 05:01:00,384 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 05:01:00,385 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40_true-unreach-call_true-termination.i [2018-09-19 05:01:00,731 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4402e6e41/63d57caae0d345368546cf0d5d786923/FLAG01dbf1938 [2018-09-19 05:01:00,890 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 05:01:00,891 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40_true-unreach-call_true-termination.i [2018-09-19 05:01:00,897 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4402e6e41/63d57caae0d345368546cf0d5d786923/FLAG01dbf1938 [2018-09-19 05:01:00,920 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4402e6e41/63d57caae0d345368546cf0d5d786923 [2018-09-19 05:01:00,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 05:01:00,935 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 05:01:00,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:00,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 05:01:00,942 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 05:01:00,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:00" (1/1) ... [2018-09-19 05:01:00,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac4da8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:00, skipping insertion in model container [2018-09-19 05:01:00,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:00" (1/1) ... [2018-09-19 05:01:00,958 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 05:01:01,159 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:01,199 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 05:01:01,204 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:01,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01 WrapperNode [2018-09-19 05:01:01,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:01,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:01,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 05:01:01,265 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 05:01:01,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:01,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 05:01:01,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 05:01:01,310 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 05:01:01,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 05:01:01,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 05:01:01,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 05:01:01,373 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 05:01:01,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (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 [2018-09-19 05:01:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 05:01:01,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 05:01:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 05:01:01,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 05:01:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 05:01:01,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 05:01:02,203 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 05:01:02,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:02 BoogieIcfgContainer [2018-09-19 05:01:02,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 05:01:02,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 05:01:02,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 05:01:02,208 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 05:01:02,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 05:01:00" (1/3) ... [2018-09-19 05:01:02,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38dfd18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:02, skipping insertion in model container [2018-09-19 05:01:02,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (2/3) ... [2018-09-19 05:01:02,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38dfd18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:02, skipping insertion in model container [2018-09-19 05:01:02,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:02" (3/3) ... [2018-09-19 05:01:02,212 INFO L112 eAbstractionObserver]: Analyzing ICFG n.c40_true-unreach-call_true-termination.i [2018-09-19 05:01:02,223 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 05:01:02,230 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 05:01:02,275 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 05:01:02,276 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 05:01:02,276 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 05:01:02,276 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 05:01:02,277 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 05:01:02,277 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 05:01:02,277 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 05:01:02,277 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 05:01:02,277 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 05:01:02,293 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-19 05:01:02,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 05:01:02,300 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:02,301 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:02,302 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:02,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1526440521, now seen corresponding path program 1 times [2018-09-19 05:01:02,308 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:02,309 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 05:01:02,311 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [17], [19], [22], [25], [27], [37], [38], [39] [2018-09-19 05:01:02,347 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:02,347 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:02,422 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:02,423 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 11 variables. [2018-09-19 05:01:02,470 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:02,526 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 93.33% of their original sizes. [2018-09-19 05:01:02,526 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:02,543 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:02,546 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:02,546 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 05:01:02,546 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:02,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 05:01:02,555 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 05:01:02,556 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 05:01:02,558 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-09-19 05:01:02,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:02,771 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-09-19 05:01:02,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 05:01:02,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-19 05:01:02,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:02,784 INFO L225 Difference]: With dead ends: 37 [2018-09-19 05:01:02,784 INFO L226 Difference]: Without dead ends: 15 [2018-09-19 05:01:02,787 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 [2018-09-19 05:01:02,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-19 05:01:02,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-09-19 05:01:02,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-19 05:01:02,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-19 05:01:02,834 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-09-19 05:01:02,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:02,834 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-19 05:01:02,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 05:01:02,834 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-19 05:01:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 05:01:02,835 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:02,835 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:02,836 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:02,836 INFO L82 PathProgramCache]: Analyzing trace with hash 228063118, now seen corresponding path program 1 times [2018-09-19 05:01:02,836 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:02,836 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 05:01:02,837 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [22], [25], [27], [37], [38], [39] [2018-09-19 05:01:02,840 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:02,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:02,982 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 05:01:02,983 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. [2018-09-19 05:01:02,996 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 05:01:03,019 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 05:01:03,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 05:01:03 BoogieIcfgContainer [2018-09-19 05:01:03,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 05:01:03,021 INFO L168 Benchmark]: Toolchain (without parser) took 2088.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -700.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:03,023 INFO L168 Benchmark]: CDTParser took 0.27 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. [2018-09-19 05:01:03,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.26 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:03,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.71 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. [2018-09-19 05:01:03,026 INFO L168 Benchmark]: Boogie Preprocessor took 63.16 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. [2018-09-19 05:01:03,026 INFO L168 Benchmark]: RCFGBuilder took 831.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -751.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:03,027 INFO L168 Benchmark]: TraceAbstraction took 815.14 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. [2018-09-19 05:01:03,033 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 328.26 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.71 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 63.16 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 831.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -751.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 815.14 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, 0.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 11 SDslu, 7 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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-0-2018-09-19_05-01-03-046.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-0-2018-09-19_05-01-03-046.csv Received shutdown request...