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/20170304-DifficultPathPrograms/pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:13:29,597 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:13:29,599 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:13:29,612 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:13:29,613 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:13:29,614 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:13:29,615 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:13:29,618 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:13:29,620 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:13:29,620 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:13:29,623 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:13:29,623 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:13:29,624 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:13:29,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:13:29,626 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:13:29,629 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:13:29,631 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:13:29,634 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:13:29,644 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:13:29,646 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:13:29,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:13:29,652 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:13:29,657 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:13:29,658 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:13:29,658 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:13:29,659 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:13:29,660 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:13:29,661 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:13:29,664 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:13:29,666 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:13:29,666 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:13:29,666 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:13:29,667 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:13:29,667 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:13:29,670 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:13:29,671 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:13:29,672 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 16:13:29,685 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:13:29,685 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:13:29,687 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:13:29,687 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:13:29,687 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:13:29,687 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:13:29,734 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:13:29,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:13:29,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:13:29,752 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:13:29,753 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:13:29,754 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl [2018-07-23 16:13:29,754 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl' [2018-07-23 16:13:29,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:13:29,845 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:13:29,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:13:29,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:13:29,846 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:13:29,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:13:29" (1/1) ... [2018-07-23 16:13:29,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:13:29" (1/1) ... [2018-07-23 16:13:29,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:13:29" (1/1) ... [2018-07-23 16:13:29,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:13:29" (1/1) ... [2018-07-23 16:13:29,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:13:29" (1/1) ... [2018-07-23 16:13:29,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:13:29" (1/1) ... [2018-07-23 16:13:29,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:13:29" (1/1) ... [2018-07-23 16:13:29,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:13:29,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:13:29,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:13:29,941 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:13:29,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:13:29" (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 16:13:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 16:13:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 16:13:31,419 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 16:13:31,420 INFO L202 PluginConnector]: Adding new model pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:13:31 BoogieIcfgContainer [2018-07-23 16:13:31,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:13:31,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:13:31,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:13:31,430 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:13:31,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:13:29" (1/2) ... [2018-07-23 16:13:31,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2b3910 and model type pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:13:31, skipping insertion in model container [2018-07-23 16:13:31,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:13:31" (2/2) ... [2018-07-23 16:13:31,437 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl [2018-07-23 16:13:31,458 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:13:31,467 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:13:31,514 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:13:31,515 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:13:31,515 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:13:31,516 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:13:31,516 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:13:31,516 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:13:31,516 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:13:31,516 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:13:31,517 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:13:31,531 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 16:13:31,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:13:31,540 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:13:31,542 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:13:31,542 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:13:31,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1019879, now seen corresponding path program 1 times [2018-07-23 16:13:31,554 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:13:32,351 WARN L169 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2018-07-23 16:13:32,712 WARN L169 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2018-07-23 16:13:32,753 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:13:32,754 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:13:32,759 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:13:32,766 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:13:32,767 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:13:32,770 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 16:13:32,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:13:32,859 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 16:13:32,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:13:32,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 16:13:32,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:13:32,874 INFO L225 Difference]: With dead ends: 10 [2018-07-23 16:13:32,874 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 16:13:32,878 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:13:32,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 16:13:32,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 16:13:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 16:13:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 16:13:32,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 16:13:32,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:13:32,919 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 16:13:32,919 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:13:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 16:13:32,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 16:13:32,920 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:13:32,920 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 16:13:32,920 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:13:32,921 INFO L82 PathProgramCache]: Analyzing trace with hash 980190467, now seen corresponding path program 1 times [2018-07-23 16:13:32,921 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:13:33,460 WARN L169 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2018-07-23 16:13:33,752 WARN L169 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2018-07-23 16:13:34,046 WARN L169 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2018-07-23 16:13:34,280 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2018-07-23 16:13:34,696 WARN L169 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 157 [2018-07-23 16:13:35,498 WARN L169 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2018-07-23 16:13:37,468 WARN L169 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 356 [2018-07-23 16:13:38,357 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 447 [2018-07-23 16:13:39,628 WARN L169 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2018-07-23 16:13:46,447 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2018-07-23 16:13:48,801 WARN L169 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 521 DAG size of output: 520 [2018-07-23 16:13:51,444 WARN L169 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 581 [2018-07-23 16:13:54,057 WARN L169 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 685 [2018-07-23 16:14:06,111 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 16:14:06,115 INFO L168 Benchmark]: Toolchain (without parser) took 36271.82 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 102.8 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 233.2 MB). Peak memory consumption was 336.0 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:06,116 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:14:06,117 INFO L168 Benchmark]: Boogie Preprocessor took 94.70 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:14:06,117 INFO L168 Benchmark]: RCFGBuilder took 1479.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:06,118 INFO L168 Benchmark]: TraceAbstraction took 34693.13 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 102.8 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.7 MB). Peak memory consumption was 251.4 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:06,123 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 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 94.70 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 1479.60 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34693.13 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 102.8 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.7 MB). Peak memory consumption was 251.4 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/pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-14-06-134.csv Received shutdown request...