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_overflow.ufo.UNBOUNDED.pals.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:10:10,150 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:10:10,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:10:10,165 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:10:10,165 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:10:10,166 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:10:10,168 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:10:10,169 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:10:10,171 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:10:10,172 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:10:10,173 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:10:10,173 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:10:10,174 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:10:10,175 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:10:10,176 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:10:10,177 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:10:10,178 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:10:10,180 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:10:10,182 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:10:10,184 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:10:10,185 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:10:10,186 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:10:10,188 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:10:10,189 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:10:10,189 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:10:10,190 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:10:10,191 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:10:10,191 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:10:10,192 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:10:10,193 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:10:10,194 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:10:10,194 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:10:10,194 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:10:10,195 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:10:10,196 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:10:10,196 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:10:10,197 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 16:10:10,205 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:10:10,205 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:10:10,206 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:10:10,206 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:10:10,207 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:10:10,207 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:10:10,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:10:10,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:10:10,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:10:10,271 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:10:10,272 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:10:10,272 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl [2018-07-23 16:10:10,273 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl' [2018-07-23 16:10:10,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:10:10,377 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:10:10,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:10:10,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:10:10,380 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:10:10,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:10" (1/1) ... [2018-07-23 16:10:10,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:10" (1/1) ... [2018-07-23 16:10:10,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:10" (1/1) ... [2018-07-23 16:10:10,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:10" (1/1) ... [2018-07-23 16:10:10,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:10" (1/1) ... [2018-07-23 16:10:10,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:10" (1/1) ... [2018-07-23 16:10:10,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:10" (1/1) ... [2018-07-23 16:10:10,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:10:10,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:10:10,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:10:10,460 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:10:10,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:10" (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 16:10:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 16:10:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 16:10:11,449 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 16:10:11,450 INFO L202 PluginConnector]: Adding new model pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:10:11 BoogieIcfgContainer [2018-07-23 16:10:11,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:10:11,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:10:11,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:10:11,454 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:10:11,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:10:10" (1/2) ... [2018-07-23 16:10:11,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35366834 and model type pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:10:11, skipping insertion in model container [2018-07-23 16:10:11,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:10:11" (2/2) ... [2018-07-23 16:10:11,458 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl [2018-07-23 16:10:11,467 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:10:11,476 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:10:11,520 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:10:11,521 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:10:11,521 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:10:11,522 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:10:11,522 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:10:11,522 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:10:11,522 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:10:11,522 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:10:11,523 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:10:11,537 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 16:10:11,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:10:11,545 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:10:11,546 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:10:11,546 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:10:11,551 INFO L82 PathProgramCache]: Analyzing trace with hash 987398, now seen corresponding path program 1 times [2018-07-23 16:10:11,557 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:10:12,054 WARN L169 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-07-23 16:10:12,358 WARN L169 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2018-07-23 16:10:12,404 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:10:12,404 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:10:12,409 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:10:12,416 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:10:12,417 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:10:12,420 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 16:10:12,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:10:12,517 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 16:10:12,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:10:12,519 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 16:10:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:10:12,531 INFO L225 Difference]: With dead ends: 10 [2018-07-23 16:10:12,531 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 16:10:12,534 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 16:10:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 16:10:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 16:10:12,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 16:10:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 16:10:12,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 16:10:12,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:10:12,570 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 16:10:12,570 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:10:12,570 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 16:10:12,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 16:10:12,571 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:10:12,571 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 16:10:12,572 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:10:12,572 INFO L82 PathProgramCache]: Analyzing trace with hash 948966809, now seen corresponding path program 1 times [2018-07-23 16:10:12,572 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:10:12,881 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2018-07-23 16:10:13,300 WARN L169 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2018-07-23 16:10:13,517 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-23 16:10:13,710 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2018-07-23 16:10:14,277 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2018-07-23 16:10:15,309 WARN L169 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 219 [2018-07-23 16:10:16,629 WARN L169 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2018-07-23 16:10:18,846 WARN L169 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 315 [2018-07-23 16:10:22,085 WARN L169 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 409 [2018-07-23 16:10:26,726 WARN L169 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 413 [2018-07-23 16:10:33,389 WARN L169 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 507 [2018-07-23 16:10:44,039 WARN L169 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 512 DAG size of output: 511 [2018-07-23 16:10:58,414 WARN L169 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2018-07-23 16:11:17,966 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2018-07-23 16:11:21,078 WARN L169 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 610 DAG size of output: 609 [2018-07-23 16:11:46,116 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 581 [2018-07-23 16:11:51,147 WARN L169 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 703 [2018-07-23 16:12:30,615 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 586 [2018-07-23 16:12:32,403 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 587 [2018-07-23 16:12:36,945 WARN L169 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 708 DAG size of output: 707 [2018-07-23 16:14:30,411 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:14:30,412 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:14:30,413 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:14:30,413 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:14:30,416 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=1472, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 16:14:30,416 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 16:14:42,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:14:42,715 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-07-23 16:14:42,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:14:42,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 16:14:42,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:14:42,716 INFO L225 Difference]: With dead ends: 7 [2018-07-23 16:14:42,717 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 16:14:42,719 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1647 GetRequests, 1351 SyntacticMatches, 253 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6209 ImplicationChecksByTransitivity, 247.4s TimeCoverageRelationStatistics Valid=508, Invalid=1472, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 16:14:42,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 16:14:42,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 16:14:42,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 16:14:42,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 16:14:42,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-23 16:14:42,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:14:42,722 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 16:14:42,722 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:14:42,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 16:14:42,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 16:14:42,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 16:14:44,207 WARN L169 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 953 Received shutdown request... [2018-07-23 16:14:57,530 WARN L177 SmtUtils]: Removed 11 from assertion stack [2018-07-23 16:14:57,531 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-23 16:14:57,532 INFO L168 Benchmark]: Toolchain (without parser) took 287156.72 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -191.4 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 309.3 MB). Peak memory consumption was 392.8 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:57,533 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 16:14:57,534 INFO L168 Benchmark]: Boogie Preprocessor took 79.25 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 16:14:57,534 INFO L168 Benchmark]: RCFGBuilder took 991.23 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 16:14:57,535 INFO L168 Benchmark]: TraceAbstraction took 286080.18 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -191.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 267.0 MB). Peak memory consumption was 350.6 MB. Max. memory is 7.1 GB. [2018-07-23 16:14:57,539 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 79.25 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 991.23 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 286080.18 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -191.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 267.0 MB). Peak memory consumption was 350.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 299]: assertion always holds For all program executions holds that assertion always holds at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 1008. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-14-57-549.csv Completed graceful shutdown