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/diamond2.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:54:36,226 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:54:36,229 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:54:36,242 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:54:36,243 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:54:36,244 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:54:36,245 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:54:36,247 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:54:36,249 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:54:36,249 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:54:36,250 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:54:36,251 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:54:36,252 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:54:36,253 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:54:36,254 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:54:36,255 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:54:36,256 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:54:36,258 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:54:36,261 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:54:36,263 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:54:36,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:54:36,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:54:36,268 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:54:36,268 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:54:36,269 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:54:36,270 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:54:36,271 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:54:36,272 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:54:36,273 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:54:36,274 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:54:36,274 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:54:36,275 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 13:54:36,276 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 13:54:36,276 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 13:54:36,277 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 13:54:36,278 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 13:54:36,278 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 13:54:36,287 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:54:36,288 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:54:36,289 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:54:36,290 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 13:54:36,290 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 13:54:36,290 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:54:36,290 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:54:36,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:54:36,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:54:36,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:54:36,382 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:54:36,383 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:54:36,384 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/diamond2.i_4.bpl [2018-07-25 13:54:36,384 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/diamond2.i_4.bpl' [2018-07-25 13:54:36,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:54:36,451 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:54:36,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:54:36,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:54:36,452 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:54:36,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/1) ... [2018-07-25 13:54:36,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/1) ... [2018-07-25 13:54:36,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:54:36,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:54:36,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:54:36,512 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:54:36,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/1) ... [2018-07-25 13:54:36,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/1) ... [2018-07-25 13:54:36,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/1) ... [2018-07-25 13:54:36,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/1) ... [2018-07-25 13:54:36,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/1) ... [2018-07-25 13:54:36,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/1) ... [2018-07-25 13:54:36,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/1) ... [2018-07-25 13:54:36,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:54:36,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:54:36,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:54:36,563 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:54:36,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (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 13:54:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 13:54:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 13:54:36,959 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 13:54:36,959 INFO L202 PluginConnector]: Adding new model diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:54:36 BoogieIcfgContainer [2018-07-25 13:54:36,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:54:36,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:54:36,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:54:36,967 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:54:36,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:36" (1/2) ... [2018-07-25 13:54:36,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d0f96 and model type diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:54:36, skipping insertion in model container [2018-07-25 13:54:36,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:54:36" (2/2) ... [2018-07-25 13:54:36,972 INFO L112 eAbstractionObserver]: Analyzing ICFG diamond2.i_4.bpl [2018-07-25 13:54:36,987 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:54:37,000 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:54:37,061 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:54:37,063 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:54:37,063 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:54:37,063 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 13:54:37,063 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:54:37,064 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:54:37,064 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:54:37,064 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:54:37,065 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:54:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 13:54:37,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 13:54:37,102 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:54:37,104 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 13:54:37,106 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:54:37,116 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, 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 13:54:37,143 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:54:37,526 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:54:37,526 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:54:37,531 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:54:37,536 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:54:37,537 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:54:37,540 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-25 13:54:37,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:54:37,597 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 13:54:37,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:54:37,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-25 13:54:37,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:54:37,612 INFO L225 Difference]: With dead ends: 10 [2018-07-25 13:54:37,613 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 13:54:37,617 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:54:37,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 13:54:37,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 13:54:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 13:54:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 13:54:37,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 13:54:37,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:54:37,662 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 13:54:37,662 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:54:37,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 13:54:37,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 13:54:37,663 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:54:37,663 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 13:54:37,664 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:54:37,664 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, 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 13:54:37,682 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:54:50,179 WARN L169 SmtUtils]: Spent 12.07 s on a formula simplification that was a NOOP. DAG size: 38 [2018-07-25 13:55:14,408 WARN L169 SmtUtils]: Spent 24.14 s on a formula simplification that was a NOOP. DAG size: 53 [2018-07-25 13:55:26,745 WARN L169 SmtUtils]: Spent 12.13 s on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-07-25 13:55:38,979 WARN L169 SmtUtils]: Spent 12.10 s on a formula simplification that was a NOOP. DAG size: 39 [2018-07-25 13:56:39,205 WARN L169 SmtUtils]: Spent 1.00 m on a formula simplification that was a NOOP. DAG size: 67 [2018-07-25 13:57:03,404 WARN L169 SmtUtils]: Spent 24.09 s on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2018-07-25 13:57:51,847 WARN L169 SmtUtils]: Spent 48.23 s on a formula simplification that was a NOOP. DAG size: 81 [2018-07-25 13:58:04,145 WARN L169 SmtUtils]: Spent 12.05 s on a formula simplification that was a NOOP. DAG size: 39 [2018-07-25 13:58:28,565 WARN L169 SmtUtils]: Spent 24.35 s on a formula simplification that was a NOOP. DAG size: 95 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown