java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/real-life/Elevator.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:39:03,075 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:39:03,077 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:39:03,091 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:39:03,091 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:39:03,092 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:39:03,093 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:39:03,095 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:39:03,097 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:39:03,098 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:39:03,099 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:39:03,099 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:39:03,100 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:39:03,101 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:39:03,103 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:39:03,104 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:39:03,105 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:39:03,107 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:39:03,109 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:39:03,111 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:39:03,112 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:39:03,114 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:39:03,116 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:39:03,117 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:39:03,117 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:39:03,118 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:39:03,119 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:39:03,120 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:39:03,121 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:39:03,123 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:39:03,123 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:39:03,124 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 15:39:03,124 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 15:39:03,124 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 15:39:03,125 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 15:39:03,126 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 15:39:03,126 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf [2018-07-23 15:39:03,135 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:39:03,135 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:39:03,136 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:39:03,137 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 15:39:03,137 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:39:03,137 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:39:03,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:39:03,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:39:03,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:39:03,228 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:39:03,229 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:39:03,230 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator.bpl [2018-07-23 15:39:03,230 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator.bpl' [2018-07-23 15:39:03,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:39:03,316 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:39:03,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:39:03,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:39:03,317 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:39:03,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:03" (1/1) ... [2018-07-23 15:39:03,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:03" (1/1) ... [2018-07-23 15:39:03,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:03" (1/1) ... [2018-07-23 15:39:03,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:03" (1/1) ... [2018-07-23 15:39:03,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:03" (1/1) ... [2018-07-23 15:39:03,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:03" (1/1) ... [2018-07-23 15:39:03,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:03" (1/1) ... [2018-07-23 15:39:03,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:39:03,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:39:03,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:39:03,400 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:39:03,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:03" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-07-23 15:39:03,479 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Elevator given in one single declaration [2018-07-23 15:39:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure Elevator [2018-07-23 15:39:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure Elevator [2018-07-23 15:39:05,173 INFO L258 CfgBuilder]: Using library mode [2018-07-23 15:39:05,174 INFO L202 PluginConnector]: Adding new model Elevator.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:39:05 BoogieIcfgContainer [2018-07-23 15:39:05,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:39:05,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:39:05,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:39:05,179 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:39:05,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:03" (1/2) ... [2018-07-23 15:39:05,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4faa50fd and model type Elevator.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:39:05, skipping insertion in model container [2018-07-23 15:39:05,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Elevator.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:39:05" (2/2) ... [2018-07-23 15:39:05,183 INFO L112 eAbstractionObserver]: Analyzing ICFG Elevator.bpl [2018-07-23 15:39:05,192 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:39:05,201 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:39:05,248 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:39:05,249 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:39:05,249 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:39:05,249 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 15:39:05,250 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:39:05,250 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:39:05,250 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:39:05,250 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:39:05,251 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:39:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-23 15:39:05,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 15:39:05,274 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:05,275 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 15:39:05,275 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ElevatorErr0AssertViolationASSERT]=== [2018-07-23 15:39:05,281 INFO L82 PathProgramCache]: Analyzing trace with hash 35181, now seen corresponding path program 1 times [2018-07-23 15:39:05,288 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:05,577 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-07-23 15:39:05,721 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:05,721 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 15:39:05,725 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:39:05,732 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:39:05,733 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:39:05,735 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 4 states. [2018-07-23 15:39:05,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:05,837 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 15:39:05,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:39:05,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-23 15:39:05,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:05,857 INFO L225 Difference]: With dead ends: 9 [2018-07-23 15:39:05,857 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 15:39:05,861 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:39:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 15:39:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 15:39:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 15:39:05,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-23 15:39:05,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2018-07-23 15:39:05,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:05,896 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-23 15:39:05,896 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:39:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-23 15:39:05,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 15:39:05,897 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:05,897 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-23 15:39:05,897 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ElevatorErr0AssertViolationASSERT]=== [2018-07-23 15:39:05,897 INFO L82 PathProgramCache]: Analyzing trace with hash 33981545, now seen corresponding path program 1 times [2018-07-23 15:39:05,898 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:06,305 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2018-07-23 15:39:06,682 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2018-07-23 15:39:07,242 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2018-07-23 15:39:13,827 WARN L169 SmtUtils]: Spent 6.34 s on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2018-07-23 15:39:26,107 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: what to do with the great unknown? at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:388) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.computePdr(Pdr.java:274) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.(Pdr.java:182) 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:406) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:425) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) 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:119) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 15:39:26,112 INFO L168 Benchmark]: Toolchain (without parser) took 22796.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. [2018-07-23 15:39:26,113 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 15:39:26,116 INFO L168 Benchmark]: Boogie Preprocessor took 81.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 15:39:26,117 INFO L168 Benchmark]: RCFGBuilder took 1774.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-23 15:39:26,118 INFO L168 Benchmark]: TraceAbstraction took 20935.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-07-23 15:39:26,121 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23 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 81.77 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 1774.43 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20935.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: what to do with the great unknown? de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: what to do with the great unknown?: de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:388) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Elevator.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-39-26-137.csv Received shutdown request...