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/20170304-DifficultPathPrograms/sum_array.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:46:47,762 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:46:47,764 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:46:47,781 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:46:47,781 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:46:47,782 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:46:47,784 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:46:47,786 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:46:47,788 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:46:47,789 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:46:47,790 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:46:47,790 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:46:47,791 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:46:47,792 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:46:47,794 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:46:47,794 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:46:47,795 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:46:47,797 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:46:47,800 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:46:47,802 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:46:47,803 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:46:47,807 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:46:47,810 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 09:46:47,810 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 09:46:47,810 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 09:46:47,813 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 09:46:47,815 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 09:46:47,819 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 09:46:47,820 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 09:46:47,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 09:46:47,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 09:46:47,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 09:46:47,825 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 09:46:47,825 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 09:46:47,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 09:46:47,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 09:46:47,830 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 09:46:47,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:46:47,848 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:46:47,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:46:47,850 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:46:47,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:46:47,850 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:46:47,850 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:46:47,851 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:46:47,906 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:46:47,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:46:47,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:46:47,932 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:46:47,933 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:46:47,934 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum_array.i_3.bpl [2018-09-26 09:46:47,934 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum_array.i_3.bpl' [2018-09-26 09:46:48,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:46:48,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:46:48,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:46:48,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:46:48,013 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:46:48,034 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 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,053 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 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:46:48,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:46:48,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:46:48,062 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:46:48,074 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 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,075 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 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,076 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 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,077 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 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,082 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 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,087 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 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,088 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 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:46:48,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:46:48,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:46:48,097 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:46:48,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:47" (1/1) ... [2018-09-26 09:46:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:46:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:46:48,395 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:46:48,396 INFO L202 PluginConnector]: Adding new model sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:46:48 BoogieIcfgContainer [2018-09-26 09:46:48,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:46:48,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:46:48,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:46:48,401 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:46:48,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:47" (1/2) ... [2018-09-26 09:46:48,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16074f9 and model type sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:46:48, skipping insertion in model container [2018-09-26 09:46:48,403 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 26.09 09:46:48" (2/2) ... [2018-09-26 09:46:48,406 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array.i_3.bpl [2018-09-26 09:46:48,417 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:46:48,425 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:46:48,474 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:46:48,475 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:46:48,476 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:46:48,476 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:46:48,476 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:46:48,476 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:46:48,476 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:46:48,477 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:46:48,477 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:46:48,493 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-09-26 09:46:48,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 09:46:48,502 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:46:48,503 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:46:48,504 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:46:48,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:46:48,511 INFO L82 PathProgramCache]: Analyzing trace with hash 148998095, now seen corresponding path program 1 times [2018-09-26 09:46:48,518 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:46:48,781 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:46:48,781 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:46:48,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 09:46:48,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 09:46:48,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:46:48,794 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2018-09-26 09:46:48,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:46:48,955 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2018-09-26 09:46:48,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 09:46:48,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-26 09:46:48,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:46:48,983 INFO L225 Difference]: With dead ends: 18 [2018-09-26 09:46:48,983 INFO L226 Difference]: Without dead ends: 15 [2018-09-26 09:46:48,987 INFO L605 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 [2018-09-26 09:46:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-26 09:46:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2018-09-26 09:46:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-26 09:46:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-09-26 09:46:49,038 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2018-09-26 09:46:49,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:46:49,038 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-09-26 09:46:49,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 09:46:49,040 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-09-26 09:46:49,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 09:46:49,041 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:46:49,041 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:46:49,042 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:46:49,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:46:49,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1453301129, now seen corresponding path program 1 times [2018-09-26 09:46:49,043 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:46:50,671 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-09-26 09:46:52,004 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-09-26 09:46:53,468 WARN L178 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-09-26 09:46:54,275 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-09-26 09:46:56,061 WARN L178 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-09-26 09:46:57,118 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-09-26 09:46:59,619 WARN L178 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 129 [2018-09-26 09:47:00,722 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-09-26 09:47:03,751 WARN L178 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 149 [2018-09-26 09:47:05,386 WARN L178 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2018-09-26 09:47:09,534 WARN L178 SmtUtils]: Spent 2.11 s on a formula simplification that was a NOOP. DAG size: 168 [2018-09-26 09:47:11,321 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2018-09-26 09:47:16,350 WARN L178 SmtUtils]: Spent 2.61 s on a formula simplification that was a NOOP. DAG size: 183 [2018-09-26 09:47:18,660 WARN L178 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-09-26 09:47:22,940 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:626) 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:149) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:354) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:286) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.updateFrames(Pdr.java:606) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:406) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.computePdr(Pdr.java:291) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.(Pdr.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructPdr(TraceCheckConstructor.java:274) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:198) 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:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) 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.linar.LinArSolve.mbtc(LinArSolve.java:2063) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:618) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1027) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1171) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:114) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:502) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:455) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) ... 38 more [2018-09-26 09:47:22,945 INFO L168 Benchmark]: Toolchain (without parser) took 34937.70 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 921.7 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -930.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-26 09:47:22,947 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:47:22,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:47:22,948 INFO L168 Benchmark]: Boogie Preprocessor took 34.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:47:22,949 INFO L168 Benchmark]: RCFGBuilder took 299.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-26 09:47:22,950 INFO L168 Benchmark]: TraceAbstraction took 34546.93 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 921.7 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -940.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-26 09:47:22,956 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.24 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 48.71 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 34.75 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 299.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34546.93 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 921.7 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -940.9 MB). Peak memory consumption was 1.4 GB. 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-0-2018-09-26_09-47-22-973.csv Received shutdown request...