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.4.ufo.BOUNDED-8.pals.c_19.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:10:55,085 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:10:55,087 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:10:55,099 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:10:55,099 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:10:55,100 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:10:55,102 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:10:55,103 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:10:55,105 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:10:55,106 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:10:55,107 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:10:55,107 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:10:55,108 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:10:55,109 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:10:55,110 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:10:55,111 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:10:55,112 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:10:55,114 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:10:55,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:10:55,117 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:10:55,119 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:10:55,120 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:10:55,122 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:10:55,123 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:10:55,123 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:10:55,124 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:10:55,125 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:10:55,126 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:10:55,127 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:10:55,128 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:10:55,128 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:10:55,129 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:10:55,129 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:10:55,129 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:10:55,130 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:10:55,131 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:10:55,132 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 16:10:55,139 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:10:55,140 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:10:55,141 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:10:55,141 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:10:55,141 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:10:55,142 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:10:55,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:10:55,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:10:55,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:10:55,202 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:10:55,203 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:10:55,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl [2018-07-23 16:10:55,204 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl' [2018-07-23 16:10:55,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:10:55,285 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:10:55,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:10:55,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:10:55,286 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:10:55,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:55" (1/1) ... [2018-07-23 16:10:55,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:55" (1/1) ... [2018-07-23 16:10:55,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:55" (1/1) ... [2018-07-23 16:10:55,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:55" (1/1) ... [2018-07-23 16:10:55,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:55" (1/1) ... [2018-07-23 16:10:55,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:55" (1/1) ... [2018-07-23 16:10:55,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:55" (1/1) ... [2018-07-23 16:10:55,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:10:55,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:10:55,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:10:55,350 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:10:55,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:55" (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 16:10:55,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 16:10:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 16:10:56,543 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 16:10:56,544 INFO L202 PluginConnector]: Adding new model pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:10:56 BoogieIcfgContainer [2018-07-23 16:10:56,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:10:56,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:10:56,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:10:56,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:10:56,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:55" (1/2) ... [2018-07-23 16:10:56,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622d1d3c and model type pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:10:56, skipping insertion in model container [2018-07-23 16:10:56,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:10:56" (2/2) ... [2018-07-23 16:10:56,552 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c_19.bpl [2018-07-23 16:10:56,565 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:10:56,578 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:10:56,622 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:10:56,622 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:10:56,623 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:10:56,623 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:10:56,623 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:10:56,623 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:10:56,624 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:10:56,624 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:10:56,624 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:10:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 16:10:56,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:10:56,650 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:10:56,651 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:10:56,651 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:10:56,655 INFO L82 PathProgramCache]: Analyzing trace with hash 998225, now seen corresponding path program 1 times [2018-07-23 16:10:56,660 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:10:57,471 WARN L169 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-07-23 16:10:57,646 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2018-07-23 16:10:57,684 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:10:57,685 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:10:57,689 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:10:57,694 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:10:57,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:10:57,698 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 16:10:57,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:10:57,780 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 16:10:57,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:10:57,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 16:10:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:10:57,794 INFO L225 Difference]: With dead ends: 10 [2018-07-23 16:10:57,795 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 16:10:57,798 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:10:57,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 16:10:57,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 16:10:57,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 16:10:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 16:10:57,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 16:10:57,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:10:57,838 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 16:10:57,838 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:10:57,838 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 16:10:57,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 16:10:57,839 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:10:57,839 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 16:10:57,839 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:10:57,840 INFO L82 PathProgramCache]: Analyzing trace with hash 959374695, now seen corresponding path program 1 times [2018-07-23 16:10:57,840 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:10:58,166 WARN L169 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-07-23 16:10:58,654 WARN L169 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2018-07-23 16:10:58,937 WARN L169 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2018-07-23 16:10:59,398 WARN L169 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 129 [2018-07-23 16:11:00,267 WARN L169 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2018-07-23 16:11:01,348 WARN L169 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 274 [2018-07-23 16:11:02,169 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 338 [2018-07-23 16:11:03,208 WARN L169 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2018-07-23 16:11:06,187 WARN L169 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 398 [2018-07-23 16:11:08,857 WARN L169 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 437 [2018-07-23 16:11:09,553 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2018-07-23 16:11:10,695 WARN L169 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 521 [2018-07-23 16:11:16,290 WARN L169 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 440 [2018-07-23 16:11:17,014 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2018-07-23 16:11:18,651 WARN L169 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 524 [2018-07-23 16:11:24,926 WARN L169 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 535 [2018-07-23 16:11:26,037 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 536 [2018-07-23 16:11:27,847 WARN L169 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2018-07-23 16:11:42,535 WARN L169 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2018-07-23 16:11:43,765 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 541 [2018-07-23 16:11:46,306 WARN L169 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 651 DAG size of output: 651 [2018-07-23 16:12:03,086 WARN L169 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 638 DAG size of output: 635 [2018-07-23 16:12:05,299 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2018-07-23 16:12:09,539 WARN L169 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 774 [2018-07-23 16:12:48,852 WARN L169 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2018-07-23 16:12:51,930 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 640 [2018-07-23 16:12:56,324 WARN L169 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 778 DAG size of output: 778 [2018-07-23 16:13:37,941 WARN L169 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 737 DAG size of output: 734 [2018-07-23 16:13:41,485 WARN L169 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 735 [2018-07-23 16:13:50,139 WARN L169 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 901 [2018-07-23 16:14:02,224 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 16:14:02,229 INFO L168 Benchmark]: Toolchain (without parser) took 186945.09 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 179.3 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -57.8 MB). Peak memory consumption was 121.5 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:02,230 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:14:02,231 INFO L168 Benchmark]: Boogie Preprocessor took 63.71 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:14:02,232 INFO L168 Benchmark]: RCFGBuilder took 1194.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:02,234 INFO L168 Benchmark]: TraceAbstraction took 185682.60 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 179.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -110.6 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:02,241 INFO L336 ainManager$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 63.71 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. * RCFGBuilder took 1194.45 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 185682.60 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 179.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -110.6 MB). Peak memory consumption was 68.7 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.4.ufo.BOUNDED-8.pals.c_19.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-14-02-254.csv [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forcibly destroying the process Received shutdown request...