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_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/nec40_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 06:50:54,188 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 06:50:54,190 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 06:50:54,208 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 06:50:54,208 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 06:50:54,209 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 06:50:54,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 06:50:54,213 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 06:50:54,215 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 06:50:54,216 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 06:50:54,217 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 06:50:54,217 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 06:50:54,218 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 06:50:54,219 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 06:50:54,220 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 06:50:54,221 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 06:50:54,222 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 06:50:54,223 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 06:50:54,225 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 06:50:54,227 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 06:50:54,228 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 06:50:54,229 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 06:50:54,232 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 06:50:54,232 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 06:50:54,232 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 06:50:54,233 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 06:50:54,235 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 06:50:54,235 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 06:50:54,236 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 06:50:54,237 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 06:50:54,238 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 06:50:54,238 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 06:50:54,241 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-09-19 06:50:54,257 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 06:50:54,257 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 06:50:54,258 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 06:50:54,258 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 06:50:54,259 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 06:50:54,259 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 06:50:54,259 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 06:50:54,259 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 06:50:54,259 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-19 06:50:54,260 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 06:50:54,260 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 06:50:54,260 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 06:50:54,260 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 06:50:54,261 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 06:50:54,261 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 06:50:54,261 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 06:50:54,262 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 06:50:54,262 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 06:50:54,262 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 06:50:54,262 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 06:50:54,262 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 06:50:54,263 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 06:50:54,263 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 06:50:54,263 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 06:50:54,263 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 06:50:54,263 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 06:50:54,264 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 06:50:54,264 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 06:50:54,264 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 06:50:54,264 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 06:50:54,264 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 06:50:54,265 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 06:50:54,265 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 06:50:54,265 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 06:50:54,265 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 06:50:54,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 06:50:54,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 06:50:54,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 06:50:54,341 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 06:50:54,342 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 06:50:54,342 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec40_true-unreach-call_true-termination.i [2018-09-19 06:50:54,702 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db70b9da/d60b3e28ffc041e5b0b9d1077384f5ac/FLAGbc0623df5 [2018-09-19 06:50:54,849 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 06:50:54,850 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec40_true-unreach-call_true-termination.i [2018-09-19 06:50:54,857 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db70b9da/d60b3e28ffc041e5b0b9d1077384f5ac/FLAGbc0623df5 [2018-09-19 06:50:54,874 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db70b9da/d60b3e28ffc041e5b0b9d1077384f5ac [2018-09-19 06:50:54,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 06:50:54,890 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 06:50:54,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 06:50:54,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 06:50:54,899 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 06:50:54,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:50:54" (1/1) ... [2018-09-19 06:50:54,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aabe07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:54, skipping insertion in model container [2018-09-19 06:50:54,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:50:54" (1/1) ... [2018-09-19 06:50:54,918 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 06:50:55,119 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:50:55,160 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 06:50:55,166 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:50:55,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55 WrapperNode [2018-09-19 06:50:55,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 06:50:55,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 06:50:55,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 06:50:55,230 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 06:50:55,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... [2018-09-19 06:50:55,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... [2018-09-19 06:50:55,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 06:50:55,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 06:50:55,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 06:50:55,266 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 06:50:55,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... [2018-09-19 06:50:55,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... [2018-09-19 06:50:55,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... [2018-09-19 06:50:55,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... [2018-09-19 06:50:55,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... [2018-09-19 06:50:55,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... [2018-09-19 06:50:55,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... [2018-09-19 06:50:55,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 06:50:55,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 06:50:55,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 06:50:55,341 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 06:50:55,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 06:50:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 06:50:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 06:50:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 06:50:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 06:50:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 06:50:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 06:50:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 06:50:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 06:50:56,382 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 06:50:56,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:50:56 BoogieIcfgContainer [2018-09-19 06:50:56,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 06:50:56,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 06:50:56,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 06:50:56,388 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 06:50:56,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 06:50:54" (1/3) ... [2018-09-19 06:50:56,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f83c062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:50:56, skipping insertion in model container [2018-09-19 06:50:56,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:50:55" (2/3) ... [2018-09-19 06:50:56,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f83c062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:50:56, skipping insertion in model container [2018-09-19 06:50:56,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:50:56" (3/3) ... [2018-09-19 06:50:56,392 INFO L112 eAbstractionObserver]: Analyzing ICFG nec40_true-unreach-call_true-termination.i [2018-09-19 06:50:56,403 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 06:50:56,412 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 06:50:56,465 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 06:50:56,466 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 06:50:56,466 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 06:50:56,467 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 06:50:56,467 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 06:50:56,467 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 06:50:56,468 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 06:50:56,468 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 06:50:56,468 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 06:50:56,487 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-09-19 06:50:56,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 06:50:56,494 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:50:56,495 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:50:56,496 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:50:56,502 INFO L82 PathProgramCache]: Analyzing trace with hash -91485938, now seen corresponding path program 1 times [2018-09-19 06:50:56,509 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:50:56,510 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 06:50:56,513 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [17], [19], [22], [25], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 06:50:56,555 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 06:50:56,555 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:50:56,631 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:50:56,632 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 06:50:56,680 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:50:56,750 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96% of their original sizes. [2018-09-19 06:50:56,750 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:50:56,778 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:50:56,784 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:50:56,784 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 06:50:56,785 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:50:56,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 06:50:56,808 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 06:50:56,812 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 06:50:56,820 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2018-09-19 06:50:56,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:50:56,956 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2018-09-19 06:50:56,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 06:50:56,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-19 06:50:56,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:50:56,967 INFO L225 Difference]: With dead ends: 47 [2018-09-19 06:50:56,967 INFO L226 Difference]: Without dead ends: 18 [2018-09-19 06:50:56,971 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 12 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 06:50:56,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-19 06:50:57,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-19 06:50:57,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-19 06:50:57,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-09-19 06:50:57,006 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2018-09-19 06:50:57,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:50:57,007 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-09-19 06:50:57,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 06:50:57,007 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-09-19 06:50:57,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-19 06:50:57,008 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:50:57,008 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:50:57,009 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:50:57,009 INFO L82 PathProgramCache]: Analyzing trace with hash 284971401, now seen corresponding path program 1 times [2018-09-19 06:50:57,009 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:50:57,009 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-19 06:50:57,010 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [22], [25], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 06:50:57,011 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 06:50:57,011 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:50:57,036 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 06:50:57,036 INFO L272 AbstractInterpreter]: Visited 16 different actions 26 times. Merged at 6 different actions 6 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 12 variables. [2018-09-19 06:50:57,045 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 06:50:57,070 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 06:50:57,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 06:50:57 BoogieIcfgContainer [2018-09-19 06:50:57,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 06:50:57,071 INFO L168 Benchmark]: Toolchain (without parser) took 2184.40 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: -712.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2018-09-19 06:50:57,074 INFO L168 Benchmark]: CDTParser took 0.26 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 06:50:57,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.17 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 06:50:57,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.62 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 06:50:57,076 INFO L168 Benchmark]: Boogie Preprocessor took 75.94 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 06:50:57,077 INFO L168 Benchmark]: RCFGBuilder took 1042.34 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: -750.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2018-09-19 06:50:57,078 INFO L168 Benchmark]: TraceAbstraction took 686.87 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-19 06:50:57,083 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 334.17 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 37.62 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 75.94 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 1042.34 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: -750.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 686.87 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: 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: [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L11] char x[100], y[100]; [L12] int i,j,k; [L12] int i,j,k; [L12] int i,j,k; [L15] k = __VERIFIER_nondet_int() [L17] i = 0 [L18] COND TRUE x[i] != 0 [L19] y[i] = x[i] [L20] i++ [L20] i++ [L18] COND FALSE !(x[i] != 0) [L22] y[i] = 0 [L24] COND TRUE k >= 0 && k < i [L25] COND TRUE y[k] != 0 [L26] CALL __VERIFIER_assert(0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNKNOWN Result, 0.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 11 SDslu, 15 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9743589743589743 AbsIntWeakeningRatio, 0.5384615384615384 AbsIntAvgWeakeningVarsNumRemoved, 1.1538461538461537 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/nec40_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_06-50-57-098.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nec40_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_06-50-57-098.csv Received shutdown request...