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.3.1.ufo.BOUNDED-6.pals.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:09:42,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:09:42,782 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:09:42,794 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:09:42,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:09:42,796 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:09:42,797 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:09:42,799 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:09:42,800 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:09:42,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:09:42,802 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:09:42,802 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:09:42,803 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:09:42,804 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:09:42,806 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:09:42,806 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:09:42,807 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:09:42,809 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:09:42,811 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:09:42,813 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:09:42,814 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:09:42,815 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:09:42,818 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:09:42,818 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:09:42,818 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:09:42,819 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:09:42,821 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:09:42,821 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:09:42,822 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:09:42,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:09:42,824 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:09:42,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:09:42,825 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:09:42,825 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:09:42,826 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:09:42,827 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:09:42,827 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 16:09:42,836 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:09:42,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:09:42,837 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:09:42,837 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:09:42,838 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:09:42,838 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:09:42,888 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:09:42,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:09:42,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:09:42,907 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:09:42,908 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:09:42,909 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl [2018-07-23 16:09:42,909 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl' [2018-07-23 16:09:42,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:09:42,976 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:09:42,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:09:42,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:09:42,977 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:09:43,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:09:42" (1/1) ... [2018-07-23 16:09:43,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:09:42" (1/1) ... [2018-07-23 16:09:43,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:09:42" (1/1) ... [2018-07-23 16:09:43,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:09:42" (1/1) ... [2018-07-23 16:09:43,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:09:42" (1/1) ... [2018-07-23 16:09:43,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:09:42" (1/1) ... [2018-07-23 16:09:43,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:09:42" (1/1) ... [2018-07-23 16:09:43,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:09:43,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:09:43,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:09:43,060 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:09:43,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:09:42" (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 16:09:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 16:09:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 16:09:44,149 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 16:09:44,150 INFO L202 PluginConnector]: Adding new model pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:09:44 BoogieIcfgContainer [2018-07-23 16:09:44,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:09:44,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:09:44,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:09:44,158 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:09:44,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:09:42" (1/2) ... [2018-07-23 16:09:44,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6d7c0d and model type pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:09:44, skipping insertion in model container [2018-07-23 16:09:44,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:09:44" (2/2) ... [2018-07-23 16:09:44,162 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl [2018-07-23 16:09:44,172 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:09:44,180 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:09:44,224 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:09:44,225 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:09:44,225 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:09:44,226 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:09:44,226 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:09:44,226 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:09:44,226 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:09:44,226 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:09:44,226 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:09:44,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 16:09:44,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:09:44,248 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:09:44,249 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:09:44,249 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:09:44,253 INFO L82 PathProgramCache]: Analyzing trace with hash 987398, now seen corresponding path program 1 times [2018-07-23 16:09:44,259 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:09:44,986 WARN L169 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-23 16:09:45,269 WARN L169 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-07-23 16:09:45,300 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:09:45,301 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:09:45,305 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:09:45,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:09:45,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:09:45,316 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 16:09:45,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:09:45,442 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 16:09:45,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:09:45,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 16:09:45,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:09:45,463 INFO L225 Difference]: With dead ends: 10 [2018-07-23 16:09:45,464 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 16:09:45,467 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 16:09:45,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 16:09:45,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 16:09:45,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 16:09:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 16:09:45,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 16:09:45,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:09:45,512 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 16:09:45,512 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:09:45,513 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 16:09:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 16:09:45,513 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:09:45,513 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 16:09:45,514 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:09:45,514 INFO L82 PathProgramCache]: Analyzing trace with hash 948966809, now seen corresponding path program 1 times [2018-07-23 16:09:45,514 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:09:45,831 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-07-23 16:09:46,694 WARN L169 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 114 [2018-07-23 16:09:47,013 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2018-07-23 16:09:47,446 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2018-07-23 16:09:48,418 WARN L169 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 230 [2018-07-23 16:09:49,134 WARN L169 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 281 [2018-07-23 16:09:49,883 WARN L169 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2018-07-23 16:09:52,238 WARN L169 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 331 [2018-07-23 16:09:54,590 WARN L169 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 364 DAG size of output: 361 [2018-07-23 16:09:56,019 WARN L169 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2018-07-23 16:10:01,309 WARN L169 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 435 [2018-07-23 16:10:06,621 WARN L169 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 446 DAG size of output: 443 [2018-07-23 16:10:09,029 WARN L169 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 535 [2018-07-23 16:10:18,021 WARN L169 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2018-07-23 16:10:18,984 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2018-07-23 16:10:21,185 WARN L169 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 538 DAG size of output: 538 [2018-07-23 16:10:34,731 WARN L169 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 526 DAG size of output: 523 [2018-07-23 16:10:36,270 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 524 [2018-07-23 16:10:38,500 WARN L169 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2018-07-23 16:11:00,719 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 527 [2018-07-23 16:11:02,108 WARN L169 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 528 [2018-07-23 16:11:05,639 WARN L169 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 641 DAG size of output: 641 [2018-07-23 16:11:40,791 WARN L169 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 607 DAG size of output: 604 [2018-07-23 16:11:43,618 WARN L169 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2018-07-23 16:11:47,069 WARN L169 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 741 [2018-07-23 16:12:36,787 WARN L169 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2018-07-23 16:12:39,991 WARN L169 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 610 [2018-07-23 16:12:46,157 WARN L169 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 745 DAG size of output: 745 [2018-07-23 16:14:02,561 WARN L169 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 689 DAG size of output: 686 [2018-07-23 16:14:08,166 WARN L169 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 687 [2018-07-23 16:14:13,809 WARN L169 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 845 [2018-07-23 16:14:25,904 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 16:14:25,907 INFO L168 Benchmark]: Toolchain (without parser) took 282932.56 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -39.3 MB). Free memory was 1.5 GB in the beginning and 1.0 GB in the end (delta: 461.6 MB). Peak memory consumption was 422.3 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:25,909 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:14:25,909 INFO L168 Benchmark]: Boogie Preprocessor took 82.00 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:14:25,910 INFO L168 Benchmark]: RCFGBuilder took 1090.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:25,911 INFO L168 Benchmark]: TraceAbstraction took 281755.14 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -39.3 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 419.3 MB). Peak memory consumption was 380.0 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:25,915 INFO L336 ainManager$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 82.00 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 1090.76 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 281755.14 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -39.3 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 419.3 MB). Peak memory consumption was 380.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: what to do with the great unknown? de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: what to do with the great unknown?: de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:388) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-14-25-927.csv [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forcibly destroying the process Received shutdown request...