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/diamond1.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:54:24,034 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:54:24,036 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:54:24,055 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:54:24,055 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:54:24,057 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:54:24,058 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:54:24,060 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:54:24,063 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:54:24,065 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:54:24,067 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:54:24,068 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:54:24,069 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:54:24,070 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:54:24,072 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:54:24,079 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:54:24,080 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:54:24,085 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:54:24,087 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:54:24,092 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:54:24,093 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:54:24,094 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:54:24,100 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:54:24,102 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:54:24,102 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:54:24,103 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:54:24,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:54:24,105 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:54:24,106 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:54:24,107 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:54:24,107 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:54:24,111 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 13:54:24,113 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 13:54:24,113 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 13:54:24,114 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 13:54:24,115 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 13:54:24,115 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 13:54:24,135 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:54:24,135 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:54:24,136 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:54:24,137 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 13:54:24,137 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 13:54:24,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:54:24,137 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:54:24,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:54:24,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:54:24,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:54:24,205 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:54:24,205 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:54:24,206 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/diamond1.i_3.bpl [2018-07-25 13:54:24,206 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/diamond1.i_3.bpl' [2018-07-25 13:54:24,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:54:24,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:54:24,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:54:24,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:54:24,255 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:54:24,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/1) ... [2018-07-25 13:54:24,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/1) ... [2018-07-25 13:54:24,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:54:24,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:54:24,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:54:24,291 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:54:24,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/1) ... [2018-07-25 13:54:24,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/1) ... [2018-07-25 13:54:24,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/1) ... [2018-07-25 13:54:24,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/1) ... [2018-07-25 13:54:24,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/1) ... [2018-07-25 13:54:24,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/1) ... [2018-07-25 13:54:24,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/1) ... [2018-07-25 13:54:24,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:54:24,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:54:24,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:54:24,311 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:54:24,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (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 13:54:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 13:54:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 13:54:24,535 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 13:54:24,536 INFO L202 PluginConnector]: Adding new model diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:54:24 BoogieIcfgContainer [2018-07-25 13:54:24,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:54:24,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:54:24,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:54:24,540 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:54:24,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:24" (1/2) ... [2018-07-25 13:54:24,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f0f0cc and model type diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:54:24, skipping insertion in model container [2018-07-25 13:54:24,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diamond1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:54:24" (2/2) ... [2018-07-25 13:54:24,544 INFO L112 eAbstractionObserver]: Analyzing ICFG diamond1.i_3.bpl [2018-07-25 13:54:24,554 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:54:24,562 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:54:24,610 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:54:24,611 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:54:24,611 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:54:24,611 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 13:54:24,611 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:54:24,612 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:54:24,612 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:54:24,612 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:54:24,612 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:54:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 13:54:24,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 13:54:24,637 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:54:24,638 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 13:54:24,639 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:54:24,645 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 13:54:24,673 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:54:24,988 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:54:24,989 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:54:24,992 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:54:24,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:54:24,998 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:54:25,000 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-25 13:54:25,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:54:25,052 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 13:54:25,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:54:25,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-25 13:54:25,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:54:25,066 INFO L225 Difference]: With dead ends: 10 [2018-07-25 13:54:25,067 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 13:54:25,070 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 13:54:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 13:54:25,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 13:54:25,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 13:54:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 13:54:25,105 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 13:54:25,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:54:25,106 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 13:54:25,106 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:54:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 13:54:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 13:54:25,106 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:54:25,107 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 13:54:25,107 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:54:25,108 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 13:54:25,120 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:55:25,567 WARN L169 SmtUtils]: Spent 1.00 m on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2018-07-25 13:56:25,781 WARN L169 SmtUtils]: Spent 1.00 m on a formula simplification that was a NOOP. DAG size: 35 [2018-07-25 13:56:49,944 WARN L169 SmtUtils]: Spent 24.09 s on a formula simplification that was a NOOP. DAG size: 50 [2018-07-25 13:57:38,244 WARN L169 SmtUtils]: Spent 48.16 s on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2018-07-25 13:57:50,482 WARN L169 SmtUtils]: Spent 12.10 s on a formula simplification that was a NOOP. DAG size: 36 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown