java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:10:54,941 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:10:54,947 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:10:54,968 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:10:54,968 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:10:54,969 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:10:54,971 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:10:54,973 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:10:54,974 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:10:54,975 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:10:54,976 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:10:54,976 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:10:54,977 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:10:54,978 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:10:54,979 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:10:54,980 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:10:54,981 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:10:54,983 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:10:54,985 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:10:54,986 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:10:54,987 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:10:54,989 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:10:54,991 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:10:54,991 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:10:54,992 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:10:54,993 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:10:54,994 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:10:54,995 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:10:54,995 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:10:54,997 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:10:54,997 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:10:54,998 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 14:10:54,998 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 14:10:54,998 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 14:10:54,999 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 14:10:55,000 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 14:10:55,000 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-07-25 14:10:55,019 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:10:55,019 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:10:55,025 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:10:55,025 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:10:55,025 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 14:10:55,025 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:10:55,025 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:10:55,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:10:55,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:10:55,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:10:55,086 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:10:55,087 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:10:55,087 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl [2018-07-25 14:10:55,088 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl' [2018-07-25 14:10:55,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:10:55,167 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:10:55,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:10:55,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:10:55,169 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:10:55,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:10:55" (1/1) ... [2018-07-25 14:10:55,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:10:55" (1/1) ... [2018-07-25 14:10:55,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:10:55,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:10:55,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:10:55,217 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:10:55,228 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 25.07 02:10:55" (1/1) ... [2018-07-25 14:10:55,228 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 25.07 02:10:55" (1/1) ... [2018-07-25 14:10:55,238 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 25.07 02:10:55" (1/1) ... [2018-07-25 14:10:55,238 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 25.07 02:10:55" (1/1) ... [2018-07-25 14:10:55,248 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 25.07 02:10:55" (1/1) ... [2018-07-25 14:10:55,251 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 25.07 02:10:55" (1/1) ... [2018-07-25 14:10:55,253 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 25.07 02:10:55" (1/1) ... [2018-07-25 14:10:55,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:10:55,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:10:55,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:10:55,257 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:10:55,258 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 25.07 02:10:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-07-25 14:10:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 14:10:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 14:10:56,259 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 14:10:56,260 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 25.07 02:10:56 BoogieIcfgContainer [2018-07-25 14:10:56,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:10:56,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:10:56,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:10:56,268 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:10:56,268 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 25.07 02:10:55" (1/2) ... [2018-07-25 14:10:56,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0e8a5c and model type pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:10:56, skipping insertion in model container [2018-07-25 14:10:56,270 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 25.07 02:10:56" (2/2) ... [2018-07-25 14:10:56,272 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl [2018-07-25 14:10:56,283 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:10:56,295 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:10:56,345 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:10:56,346 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:10:56,346 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:10:56,347 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:10:56,347 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:10:56,347 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:10:56,347 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:10:56,347 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:10:56,348 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:10:56,367 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 14:10:56,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 14:10:56,380 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:10:56,381 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 14:10:56,382 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:10:56,388 INFO L82 PathProgramCache]: Analyzing trace with hash 987398, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:10:56,405 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:10:56,887 WARN L169 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-07-25 14:10:57,051 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2018-07-25 14:10:57,109 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:10:57,110 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 14:10:57,114 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:10:57,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:10:57,119 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:10:57,122 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-25 14:10:57,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:10:57,200 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 14:10:57,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:10:57,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-25 14:10:57,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:10:57,215 INFO L225 Difference]: With dead ends: 10 [2018-07-25 14:10:57,215 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 14:10:57,219 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:10:57,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 14:10:57,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 14:10:57,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 14:10:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 14:10:57,255 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 14:10:57,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:10:57,258 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 14:10:57,258 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:10:57,259 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 14:10:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 14:10:57,259 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:10:57,259 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 14:10:57,260 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:10:57,260 INFO L82 PathProgramCache]: Analyzing trace with hash 948966809, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:10:57,275 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:10:57,668 WARN L169 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-07-25 14:10:57,993 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2018-07-25 14:10:58,377 WARN L169 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-25 14:10:58,757 WARN L169 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2018-07-25 14:11:00,383 WARN L169 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 219 [2018-07-25 14:11:00,989 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 269 [2018-07-25 14:11:01,737 WARN L169 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2018-07-25 14:11:03,956 WARN L169 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 315 [2018-07-25 14:11:07,184 WARN L169 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 409 [2018-07-25 14:11:11,894 WARN L169 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 413 [2018-07-25 14:11:16,641 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 425 [2018-07-25 14:11:18,763 WARN L169 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 507 [2018-07-25 14:11:29,520 WARN L169 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 511 [2018-07-25 14:11:43,760 WARN L169 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2018-07-25 14:12:06,686 WARN L169 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 610 DAG size of output: 609 [2018-07-25 14:12:31,698 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 581 [2018-07-25 14:12:36,357 WARN L169 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2018-07-25 14:13:15,562 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 586 [2018-07-25 14:13:17,374 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 587 [2018-07-25 14:13:21,607 WARN L169 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 708 DAG size of output: 707 [2018-07-25 14:15:11,985 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:15:11,985 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 14:15:11,986 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:15:11,987 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:15:11,990 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=1472, Unknown=0, NotChecked=0, Total=1980 [2018-07-25 14:15:11,991 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-25 14:15:24,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:15:24,354 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-07-25 14:15:24,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:15:24,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-25 14:15:24,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:15:24,356 INFO L225 Difference]: With dead ends: 7 [2018-07-25 14:15:24,356 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 14:15:24,358 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 1647 GetRequests, 1351 SyntacticMatches, 253 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6209 ImplicationChecksByTransitivity, 244.0s TimeCoverageRelationStatistics Valid=508, Invalid=1472, Unknown=0, NotChecked=0, Total=1980 [2018-07-25 14:15:24,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 14:15:24,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 14:15:24,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 14:15:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 14:15:24,359 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-25 14:15:24,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:15:24,359 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 14:15:24,359 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:15:24,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 14:15:24,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 14:15:24,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 14:15:25,853 WARN L169 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 953 Received shutdown request... [2018-07-25 14:15:40,204 WARN L177 SmtUtils]: Removed 10 from assertion stack [2018-07-25 14:15:40,204 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-25 14:15:40,206 INFO L168 Benchmark]: Toolchain (without parser) took 285041.44 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -184.0 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 397.3 MB). Peak memory consumption was 213.3 MB. Max. memory is 7.1 GB. [2018-07-25 14:15:40,208 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. [2018-07-25 14:15:40,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.63 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. [2018-07-25 14:15:40,209 INFO L168 Benchmark]: Boogie Preprocessor took 40.08 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. [2018-07-25 14:15:40,209 INFO L168 Benchmark]: RCFGBuilder took 1003.76 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. [2018-07-25 14:15:40,210 INFO L168 Benchmark]: TraceAbstraction took 283941.10 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -184.0 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 355.0 MB). Peak memory consumption was 171.0 MB. Max. memory is 7.1 GB. [2018-07-25 14:15:40,214 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 Procedure Inliner took 47.63 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 40.08 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 1003.76 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 283941.10 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -184.0 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 355.0 MB). Peak memory consumption was 171.0 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-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_14-15-40-226.csv Completed graceful shutdown