java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/MonadicInvariant01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:57:48,291 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:57:48,294 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:57:48,313 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:57:48,314 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:57:48,315 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:57:48,316 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:57:48,319 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:57:48,322 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:57:48,323 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:57:48,326 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:57:48,326 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:57:48,327 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:57:48,328 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:57:48,332 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:57:48,333 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:57:48,336 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:57:48,343 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:57:48,349 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:57:48,354 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:57:48,355 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:57:48,356 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:57:48,360 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:57:48,360 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:57:48,361 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:57:48,363 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:57:48,365 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:57:48,365 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:57:48,366 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:57:48,370 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:57:48,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:57:48,373 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 14:57:48,376 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-07-25 14:57:48,393 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:57:48,393 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:57:48,395 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 14:57:48,395 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 14:57:48,396 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:57:48,396 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:57:48,396 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 14:57:48,396 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:57:48,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:57:48,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:57:48,496 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:57:48,497 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:57:48,498 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:57:48,499 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/MonadicInvariant01.bpl [2018-07-25 14:57:48,499 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/MonadicInvariant01.bpl' [2018-07-25 14:57:48,559 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:57:48,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:57:48,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:57:48,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:57:48,562 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:57:48,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,603 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 14:57:48,603 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 14:57:48,603 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 14:57:48,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:57:48,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:57:48,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:57:48,607 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:57:48,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:57:48,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:57:48,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:57:48,631 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:57:48,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/1) ... [2018-07-25 14:57:48,714 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-25 14:57:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-25 14:57:48,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-25 14:57:48,830 INFO L270 CfgBuilder]: Using library mode [2018-07-25 14:57:48,831 INFO L202 PluginConnector]: Adding new model MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:57:48 BoogieIcfgContainer [2018-07-25 14:57:48,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:57:48,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:57:48,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:57:48,836 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:57:48,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:57:48" (1/2) ... [2018-07-25 14:57:48,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75400700 and model type MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:57:48, skipping insertion in model container [2018-07-25 14:57:48,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "MonadicInvariant01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:57:48" (2/2) ... [2018-07-25 14:57:48,840 INFO L112 eAbstractionObserver]: Analyzing ICFG MonadicInvariant01.bpl [2018-07-25 14:57:48,850 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:57:48,858 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:57:48,907 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:57:48,908 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:57:48,908 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:57:48,908 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:57:48,909 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:57:48,909 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:57:48,909 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:57:48,909 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:57:48,909 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:57:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-25 14:57:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 14:57:48,934 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:57:48,935 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 14:57:48,936 INFO L415 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:57:48,942 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2018-07-25 14:57:48,949 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:57:49,046 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:57:49,046 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 14:57:49,051 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:57:49,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:57:49,059 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 14:57:49,062 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 4 states. [2018-07-25 14:57:49,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:57:49,095 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-25 14:57:49,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:57:49,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-25 14:57:49,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:57:49,118 INFO L225 Difference]: With dead ends: 9 [2018-07-25 14:57:49,118 INFO L226 Difference]: Without dead ends: 6 [2018-07-25 14:57:49,123 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 14:57:49,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-25 14:57:49,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-25 14:57:49,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-25 14:57:49,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-25 14:57:49,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2018-07-25 14:57:49,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:57:49,161 INFO L472 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-25 14:57:49,161 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:57:49,161 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-25 14:57:49,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-25 14:57:49,162 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:57:49,162 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-25 14:57:49,162 INFO L415 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:57:49,163 INFO L82 PathProgramCache]: Analyzing trace with hash 28754210, now seen corresponding path program 1 times [2018-07-25 14:57:49,163 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown