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/vogal.i_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:18:54,209 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:18:54,211 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:18:54,230 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:18:54,231 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:18:54,233 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:18:54,234 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:18:54,236 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:18:54,239 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:18:54,240 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:18:54,249 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:18:54,250 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:18:54,251 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:18:54,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:18:54,256 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:18:54,257 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:18:54,257 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:18:54,260 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:18:54,265 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:18:54,269 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:18:54,270 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:18:54,271 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:18:54,274 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:18:54,274 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:18:54,276 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:18:54,277 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:18:54,278 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:18:54,278 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:18:54,279 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:18:54,280 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:18:54,280 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:18:54,282 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:18:54,282 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:18:54,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:18:54,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:18:54,284 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:18:54,284 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 16:18:54,299 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:18:54,300 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:18:54,301 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:18:54,301 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:18:54,301 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:18:54,301 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:18:54,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:18:54,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:18:54,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:18:54,365 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:18:54,366 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:18:54,367 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl [2018-07-23 16:18:54,367 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl' [2018-07-23 16:18:54,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:18:54,428 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:18:54,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:18:54,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:18:54,429 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:18:54,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:54" (1/1) ... [2018-07-23 16:18:54,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:54" (1/1) ... [2018-07-23 16:18:54,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:54" (1/1) ... [2018-07-23 16:18:54,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:54" (1/1) ... [2018-07-23 16:18:54,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:54" (1/1) ... [2018-07-23 16:18:54,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:54" (1/1) ... [2018-07-23 16:18:54,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:54" (1/1) ... [2018-07-23 16:18:54,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:18:54,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:18:54,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:18:54,484 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:18:54,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:54" (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 16:18:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 16:18:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 16:18:54,984 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 16:18:54,985 INFO L202 PluginConnector]: Adding new model vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:18:54 BoogieIcfgContainer [2018-07-23 16:18:54,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:18:54,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:18:54,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:18:54,994 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:18:54,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:54" (1/2) ... [2018-07-23 16:18:54,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27dd6996 and model type vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:18:54, skipping insertion in model container [2018-07-23 16:18:55,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:18:54" (2/2) ... [2018-07-23 16:18:55,003 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal.i_5.bpl [2018-07-23 16:18:55,016 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:18:55,027 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:18:55,090 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:18:55,091 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:18:55,091 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:18:55,092 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:18:55,092 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:18:55,092 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:18:55,092 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:18:55,092 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:18:55,093 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:18:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-07-23 16:18:55,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 16:18:55,119 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:18:55,120 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:18:55,120 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:18:55,125 INFO L82 PathProgramCache]: Analyzing trace with hash 148998095, now seen corresponding path program 1 times [2018-07-23 16:18:55,132 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:18:55,303 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:18:55,303 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:18:55,308 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 16:18:55,313 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 16:18:55,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 16:18:55,316 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2018-07-23 16:18:55,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:18:55,403 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2018-07-23 16:18:55,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 16:18:55,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-07-23 16:18:55,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:18:55,417 INFO L225 Difference]: With dead ends: 21 [2018-07-23 16:18:55,417 INFO L226 Difference]: Without dead ends: 15 [2018-07-23 16:18:55,420 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 16:18:55,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-23 16:18:55,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-07-23 16:18:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-23 16:18:55,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-07-23 16:18:55,452 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2018-07-23 16:18:55,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:18:55,452 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-07-23 16:18:55,453 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 16:18:55,453 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-07-23 16:18:55,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 16:18:55,454 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:18:55,454 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:18:55,455 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:18:55,455 INFO L82 PathProgramCache]: Analyzing trace with hash 768493221, now seen corresponding path program 1 times [2018-07-23 16:18:55,455 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:18:55,698 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:18:55,698 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 16:18:55,699 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:18:55,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:18:55,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:18:55,701 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2018-07-23 16:18:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:18:55,986 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-07-23 16:18:55,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:18:55,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-07-23 16:18:55,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:18:55,988 INFO L225 Difference]: With dead ends: 19 [2018-07-23 16:18:55,988 INFO L226 Difference]: Without dead ends: 17 [2018-07-23 16:18:55,990 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-23 16:18:55,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-07-23 16:18:55,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-07-23 16:18:55,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 16:18:55,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2018-07-23 16:18:55,996 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 12 [2018-07-23 16:18:55,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:18:55,996 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2018-07-23 16:18:55,996 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:18:55,997 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2018-07-23 16:18:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 16:18:55,997 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:18:55,998 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:18:55,998 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:18:55,998 INFO L82 PathProgramCache]: Analyzing trace with hash -144651777, now seen corresponding path program 1 times [2018-07-23 16:18:55,999 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:18:56,914 WARN L169 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-07-23 16:18:57,295 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-07-23 16:18:58,014 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-07-23 16:18:58,635 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2018-07-23 16:18:59,120 WARN L169 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-07-23 16:18:59,955 WARN L169 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2018-07-23 16:19:00,716 WARN L169 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-07-23 16:19:02,096 WARN L169 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2018-07-23 16:19:02,746 WARN L169 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-07-23 16:19:03,540 WARN L169 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-07-23 16:19:13,710 WARN L169 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-07-23 16:19:14,783 WARN L169 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-07-23 16:19:15,894 WARN L169 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-07-23 16:19:27,919 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 16:19:27,922 INFO L168 Benchmark]: Toolchain (without parser) took 33495.72 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 27.8 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 220.1 MB). Peak memory consumption was 247.9 MB. Max. memory is 7.1 GB. [2018-07-23 16:19:27,923 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:19:27,924 INFO L168 Benchmark]: Boogie Preprocessor took 54.36 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:19:27,925 INFO L168 Benchmark]: RCFGBuilder took 502.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 16:19:27,926 INFO L168 Benchmark]: TraceAbstraction took 32934.63 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 27.8 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 199.0 MB). Peak memory consumption was 226.8 MB. Max. memory is 7.1 GB. [2018-07-23 16:19:27,930 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 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 54.36 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 502.18 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32934.63 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 27.8 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 199.0 MB). Peak memory consumption was 226.8 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/vogal.i_5.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-19-27-945.csv Received shutdown request...