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/20170304-DifficultPathPrograms/sum_array.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:52:50,614 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:52:50,616 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:52:50,633 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:52:50,634 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:52:50,635 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:52:50,637 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:52:50,640 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:52:50,642 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:52:50,644 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:52:50,646 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:52:50,646 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:52:50,647 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:52:50,648 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:52:50,653 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:52:50,660 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:52:50,660 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:52:50,666 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:52:50,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:52:50,675 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:52:50,678 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:52:50,680 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:52:50,685 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:52:50,685 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:52:50,685 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:52:50,687 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:52:50,689 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:52:50,689 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:52:50,690 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:52:50,692 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:52:50,692 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:52:50,693 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 14:52:50,693 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 14:52:50,693 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 14:52:50,698 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 14:52:50,700 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 14:52:50,700 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 14:52:50,712 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:52:50,713 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:52:50,714 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 14:52:50,714 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 14:52:50,715 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:52:50,715 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:52:50,715 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 14:52:50,715 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:52:50,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:52:50,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:52:50,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:52:50,786 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:52:50,787 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:52:50,788 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum_array.i_3.bpl [2018-07-25 14:52:50,788 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum_array.i_3.bpl' [2018-07-25 14:52:50,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:52:50,881 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:52:50,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:52:50,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:52:50,883 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:52:50,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:50,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:50,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:52:50,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:52:50,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:52:50,939 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:52:50,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:50,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:50,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:50,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:50,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:50,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:50,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:50,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:52:50,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:52:50,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:52:50,981 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:52:50,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/1) ... [2018-07-25 14:52:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 14:52:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 14:52:51,301 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 14:52:51,302 INFO L202 PluginConnector]: Adding new model sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:52:51 BoogieIcfgContainer [2018-07-25 14:52:51,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:52:51,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:52:51,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:52:51,307 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:52:51,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:50" (1/2) ... [2018-07-25 14:52:51,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5877620b and model type sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:52:51, skipping insertion in model container [2018-07-25 14:52:51,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:52:51" (2/2) ... [2018-07-25 14:52:51,311 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array.i_3.bpl [2018-07-25 14:52:51,322 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:52:51,331 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:52:51,381 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:52:51,382 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:52:51,382 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:52:51,382 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:52:51,382 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:52:51,382 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:52:51,383 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:52:51,383 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:52:51,383 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:52:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-07-25 14:52:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 14:52:51,409 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:51,410 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:51,411 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:51,417 INFO L82 PathProgramCache]: Analyzing trace with hash 148998095, now seen corresponding path program 1 times [2018-07-25 14:52:51,424 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:51,687 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:51,688 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 14:52:51,693 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 14:52:51,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 14:52:51,701 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 14:52:51,705 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2018-07-25 14:52:51,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:51,868 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2018-07-25 14:52:51,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 14:52:51,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-07-25 14:52:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:51,887 INFO L225 Difference]: With dead ends: 18 [2018-07-25 14:52:51,888 INFO L226 Difference]: Without dead ends: 15 [2018-07-25 14:52:51,892 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 14:52:51,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-25 14:52:51,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2018-07-25 14:52:51,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-25 14:52:51,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-07-25 14:52:51,929 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2018-07-25 14:52:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:51,930 INFO L472 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-07-25 14:52:51,930 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 14:52:51,931 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-07-25 14:52:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-25 14:52:51,931 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:51,931 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:51,932 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:51,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1453301129, now seen corresponding path program 1 times [2018-07-25 14:52:51,933 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:52,180 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2018-07-25 14:52:52,490 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-07-25 14:52:53,059 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-25 14:52:53,857 WARN L169 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-07-25 14:52:55,363 WARN L169 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-07-25 14:52:57,075 WARN L169 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-07-25 14:52:57,919 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-07-25 14:52:59,733 WARN L169 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-07-25 14:53:00,796 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-07-25 14:53:03,327 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.RuntimeException: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:78) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:302) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.updateFrames(Pdr.java:599) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:399) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.computePdr(Pdr.java:289) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.(Pdr.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructPdr(TraceCheckConstructor.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:130) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:120) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:91) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:112) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CCTerm.mergeInternal(CCTerm.java:347) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CCTerm.merge(CCTerm.java:308) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.setLiteral(CClosure.java:308) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.setLiteral(DPLLEngine.java:454) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1205) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:114) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:502) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:455) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) ... 38 more [2018-07-25 14:53:03,338 INFO L168 Benchmark]: Toolchain (without parser) took 12459.26 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 404.2 MB). Free memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: -421.4 MB). Peak memory consumption was 893.1 MB. Max. memory is 7.1 GB. [2018-07-25 14:53:03,340 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:53:03,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:53:03,343 INFO L168 Benchmark]: Boogie Preprocessor took 41.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:53:03,344 INFO L168 Benchmark]: RCFGBuilder took 321.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-25 14:53:03,345 INFO L168 Benchmark]: TraceAbstraction took 12031.01 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 404.2 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -432.0 MB). Peak memory consumption was 882.6 MB. Max. memory is 7.1 GB. [2018-07-25 14:53:03,353 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 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. * Boogie Procedure Inliner took 55.88 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. * Boogie Preprocessor took 41.75 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. * RCFGBuilder took 321.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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. * TraceAbstraction took 12031.01 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 404.2 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -432.0 MB). Peak memory consumption was 882.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: RuntimeException: java.lang.NullPointerException de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: RuntimeException: java.lang.NullPointerException: de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:78) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum_array.i_3.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_14-53-03-371.csv Received shutdown request...