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 -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/LexIndexValue-Pointer-Reduced.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:49:58,091 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:49:58,098 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:49:58,114 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:49:58,115 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:49:58,116 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:49:58,117 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:49:58,119 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:49:58,121 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:49:58,122 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:49:58,122 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:49:58,123 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:49:58,124 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:49:58,125 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:49:58,126 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:49:58,127 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:49:58,127 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:49:58,129 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:49:58,131 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:49:58,133 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:49:58,134 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:49:58,135 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:49:58,138 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 09:49:58,138 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 09:49:58,138 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 09:49:58,139 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 09:49:58,140 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 09:49:58,141 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 09:49:58,141 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 09:49:58,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 09:49:58,143 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 09:49:58,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 09:49:58,144 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 09:49:58,144 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 09:49:58,145 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 09:49:58,146 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 09:49:58,146 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-09-26 09:49:58,160 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:49:58,160 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:49:58,161 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:49:58,161 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:49:58,162 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:49:58,162 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:49:58,162 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:49:58,162 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:49:58,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:49:58,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:49:58,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:49:58,243 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:49:58,244 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:49:58,245 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/LexIndexValue-Pointer-Reduced.bpl [2018-09-26 09:49:58,245 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/LexIndexValue-Pointer-Reduced.bpl' [2018-09-26 09:49:58,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:49:58,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:49:58,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:49:58,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:49:58,310 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:49:58,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,351 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 09:49:58,352 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 09:49:58,352 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 09:49:58,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:49:58,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:49:58,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:49:58,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:49:58,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:49:58,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:49:58,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:49:58,387 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:49:58,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/1) ... [2018-09-26 09:49:58,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-26 09:49:58,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-26 09:49:58,636 INFO L343 CfgBuilder]: Using library mode [2018-09-26 09:49:58,637 INFO L202 PluginConnector]: Adding new model LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:49:58 BoogieIcfgContainer [2018-09-26 09:49:58,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:49:58,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:49:58,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:49:58,642 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:49:58,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:58" (1/2) ... [2018-09-26 09:49:58,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f188d33 and model type LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:49:58, skipping insertion in model container [2018-09-26 09:49:58,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:49:58" (2/2) ... [2018-09-26 09:49:58,646 INFO L112 eAbstractionObserver]: Analyzing ICFG LexIndexValue-Pointer-Reduced.bpl [2018-09-26 09:49:58,656 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:49:58,665 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:49:58,709 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:49:58,710 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:49:58,710 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:49:58,710 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:49:58,711 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:49:58,711 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:49:58,711 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:49:58,711 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:49:58,712 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:49:58,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-09-26 09:49:58,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-26 09:49:58,736 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:49:58,737 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-26 09:49:58,738 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:49:58,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:49:58,746 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2018-09-26 09:49:58,753 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:49:58,868 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:49:58,869 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 09:49:58,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 09:49:58,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 09:49:58,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-26 09:49:58,885 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 4 states. [2018-09-26 09:49:58,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:49:58,920 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-09-26 09:49:58,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 09:49:58,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-09-26 09:49:58,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:49:58,935 INFO L225 Difference]: With dead ends: 9 [2018-09-26 09:49:58,936 INFO L226 Difference]: Without dead ends: 6 [2018-09-26 09:49:58,939 INFO L605 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 [2018-09-26 09:49:58,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-26 09:49:58,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-26 09:49:58,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-26 09:49:58,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-26 09:49:58,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2018-09-26 09:49:58,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:49:58,979 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-26 09:49:58,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 09:49:58,979 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-26 09:49:58,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 09:49:58,980 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:49:58,980 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-09-26 09:49:58,980 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:49:58,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:49:58,981 INFO L82 PathProgramCache]: Analyzing trace with hash 28754210, now seen corresponding path program 1 times [2018-09-26 09:49:58,981 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:52:11,282 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2018-09-26 09:53:04,928 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2018-09-26 09:53:27,995 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2018-09-26 09:53:40,535 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2018-09-26 09:54:01,524 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2018-09-26 09:54:16,017 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 408 [2018-09-26 09:54:23,513 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 411 [2018-09-26 09:54:31,241 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 414 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown