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.4.1.ufo.BOUNDED-8.pals.c_19.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:10:29,960 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:10:29,962 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:10:29,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:10:29,981 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:10:29,984 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:10:29,985 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:10:29,988 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:10:29,990 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:10:29,993 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:10:29,994 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:10:29,994 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:10:29,996 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:10:29,997 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:10:30,001 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:10:30,002 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:10:30,009 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:10:30,011 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:10:30,018 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:10:30,022 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:10:30,023 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:10:30,026 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:10:30,028 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:10:30,028 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:10:30,029 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:10:30,033 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:10:30,034 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:10:30,035 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:10:30,036 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:10:30,039 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:10:30,040 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:10:30,041 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:10:30,041 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:10:30,041 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:10:30,042 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:10:30,044 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:10:30,045 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 16:10:30,058 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:10:30,058 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:10:30,060 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:10:30,060 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:10:30,060 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:10:30,060 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:10:30,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:10:30,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:10:30,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:10:30,149 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:10:30,149 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:10:30,150 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl [2018-07-23 16:10:30,150 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl' [2018-07-23 16:10:30,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:10:30,252 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:10:30,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:10:30,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:10:30,254 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:10:30,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:30" (1/1) ... [2018-07-23 16:10:30,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:30" (1/1) ... [2018-07-23 16:10:30,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:30" (1/1) ... [2018-07-23 16:10:30,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:30" (1/1) ... [2018-07-23 16:10:30,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:30" (1/1) ... [2018-07-23 16:10:30,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:30" (1/1) ... [2018-07-23 16:10:30,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:30" (1/1) ... [2018-07-23 16:10:30,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:10:30,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:10:30,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:10:30,342 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:10:30,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:30" (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 16:10:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 16:10:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 16:10:31,515 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 16:10:31,516 INFO L202 PluginConnector]: Adding new model pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:10:31 BoogieIcfgContainer [2018-07-23 16:10:31,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:10:31,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:10:31,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:10:31,521 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:10:31,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:30" (1/2) ... [2018-07-23 16:10:31,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d61e446 and model type pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:10:31, skipping insertion in model container [2018-07-23 16:10:31,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:10:31" (2/2) ... [2018-07-23 16:10:31,525 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl [2018-07-23 16:10:31,535 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:10:31,544 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:10:31,591 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:10:31,592 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:10:31,592 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:10:31,592 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:10:31,592 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:10:31,593 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:10:31,593 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:10:31,593 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:10:31,593 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:10:31,608 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 16:10:31,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:10:31,617 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:10:31,618 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:10:31,618 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:10:31,623 INFO L82 PathProgramCache]: Analyzing trace with hash 998225, now seen corresponding path program 1 times [2018-07-23 16:10:31,630 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:10:32,265 WARN L169 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-07-23 16:10:32,422 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2018-07-23 16:10:32,450 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:10:32,450 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:10:32,455 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:10:32,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:10:32,461 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:10:32,464 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 16:10:32,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:10:32,539 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 16:10:32,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:10:32,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 16:10:32,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:10:32,552 INFO L225 Difference]: With dead ends: 10 [2018-07-23 16:10:32,552 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 16:10:32,556 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:10:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 16:10:32,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 16:10:32,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 16:10:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 16:10:32,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 16:10:32,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:10:32,595 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 16:10:32,595 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:10:32,596 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 16:10:32,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 16:10:32,596 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:10:32,597 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 16:10:32,597 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:10:32,597 INFO L82 PathProgramCache]: Analyzing trace with hash 959374695, now seen corresponding path program 1 times [2018-07-23 16:10:32,597 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:10:32,826 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-07-23 16:10:33,254 WARN L169 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2018-07-23 16:10:33,601 WARN L169 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2018-07-23 16:10:34,091 WARN L169 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 129 [2018-07-23 16:10:34,426 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 242 [2018-07-23 16:10:35,016 WARN L169 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2018-07-23 16:10:36,127 WARN L169 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 274 [2018-07-23 16:10:36,898 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 338 [2018-07-23 16:10:37,819 WARN L169 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2018-07-23 16:10:40,742 WARN L169 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 398 [2018-07-23 16:10:43,139 WARN L169 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 437 [2018-07-23 16:10:43,853 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2018-07-23 16:10:45,067 WARN L169 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 521 [2018-07-23 16:10:49,489 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 440 [2018-07-23 16:10:50,236 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2018-07-23 16:10:51,795 WARN L169 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 524 [2018-07-23 16:10:58,027 WARN L169 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 535 [2018-07-23 16:10:59,546 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 536 [2018-07-23 16:11:01,429 WARN L169 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2018-07-23 16:11:15,051 WARN L169 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2018-07-23 16:11:16,552 WARN L169 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 541 [2018-07-23 16:11:19,309 WARN L169 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 651 DAG size of output: 651 [2018-07-23 16:11:37,084 WARN L169 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 638 DAG size of output: 635 [2018-07-23 16:11:39,337 WARN L169 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2018-07-23 16:11:42,612 WARN L169 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 774 [2018-07-23 16:12:19,985 WARN L169 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2018-07-23 16:12:22,439 WARN L169 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 640 [2018-07-23 16:12:26,807 WARN L169 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 778 DAG size of output: 778 [2018-07-23 16:13:05,952 WARN L169 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 737 DAG size of output: 734 [2018-07-23 16:13:09,719 WARN L169 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 735 [2018-07-23 16:13:14,940 WARN L169 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 901 [2018-07-23 16:13:27,031 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 16:13:27,036 INFO L168 Benchmark]: Toolchain (without parser) took 176785.15 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 221.2 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -7.1 MB). Peak memory consumption was 214.2 MB. Max. memory is 7.1 GB. [2018-07-23 16:13:27,038 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:13:27,038 INFO L168 Benchmark]: Boogie Preprocessor took 86.98 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:13:27,039 INFO L168 Benchmark]: RCFGBuilder took 1174.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. [2018-07-23 16:13:27,040 INFO L168 Benchmark]: TraceAbstraction took 175517.73 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 221.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -70.5 MB). Peak memory consumption was 150.7 MB. Max. memory is 7.1 GB. [2018-07-23 16:13:27,045 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.26 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 86.98 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 1174.91 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: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 175517.73 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 221.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -70.5 MB). Peak memory consumption was 150.7 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.4.1.ufo.BOUNDED-8.pals.c_19.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-13-27-064.csv [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forcibly destroying the process Received shutdown request...