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/20170319-ConjunctivePathPrograms/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:49:22,126 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:49:22,127 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:49:22,138 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:49:22,139 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:49:22,140 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:49:22,141 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:49:22,142 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:49:22,144 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:49:22,145 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:49:22,146 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:49:22,146 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:49:22,147 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:49:22,148 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:49:22,149 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:49:22,150 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:49:22,150 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:49:22,152 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:49:22,154 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:49:22,156 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:49:22,157 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:49:22,158 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:49:22,162 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:49:22,162 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:49:22,163 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:49:22,167 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:49:22,168 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:49:22,170 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:49:22,171 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:49:22,172 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:49:22,173 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:49:22,173 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 13:49:22,174 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 13:49:22,174 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 13:49:22,175 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 13:49:22,180 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 13:49:22,181 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 13:49:22,194 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:49:22,194 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:49:22,195 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:49:22,196 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 13:49:22,196 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 13:49:22,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:49:22,196 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:49:22,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:49:22,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:49:22,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:49:22,289 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:49:22,289 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:49:22,290 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl [2018-07-25 13:49:22,290 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl' [2018-07-25 13:49:22,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:49:22,345 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:49:22,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:49:22,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:49:22,347 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:49:22,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/1) ... [2018-07-25 13:49:22,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/1) ... [2018-07-25 13:49:22,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:49:22,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:49:22,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:49:22,389 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:49:22,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/1) ... [2018-07-25 13:49:22,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/1) ... [2018-07-25 13:49:22,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/1) ... [2018-07-25 13:49:22,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/1) ... [2018-07-25 13:49:22,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/1) ... [2018-07-25 13:49:22,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/1) ... [2018-07-25 13:49:22,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/1) ... [2018-07-25 13:49:22,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:49:22,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:49:22,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:49:22,413 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:49:22,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (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 13:49:22,486 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-07-25 13:49:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 13:49:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 13:49:22,751 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 13:49:22,753 INFO L202 PluginConnector]: Adding new model nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:49:22 BoogieIcfgContainer [2018-07-25 13:49:22,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:49:22,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:49:22,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:49:22,759 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:49:22,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:49:22" (1/2) ... [2018-07-25 13:49:22,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724a29be and model type nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:49:22, skipping insertion in model container [2018-07-25 13:49:22,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:49:22" (2/2) ... [2018-07-25 13:49:22,763 INFO L112 eAbstractionObserver]: Analyzing ICFG nested1.i_4.bplTransformedIcfg_BEv2_12.bpl [2018-07-25 13:49:22,777 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:49:22,786 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:49:22,843 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:49:22,844 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:49:22,844 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:49:22,844 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 13:49:22,844 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:49:22,845 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:49:22,845 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:49:22,845 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:49:22,845 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:49:22,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-25 13:49:22,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 13:49:22,877 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:49:22,879 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 13:49:22,881 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:49:22,886 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, 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 13:49:22,909 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:49:23,222 WARN L169 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2018-07-25 13:49:23,293 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:49:23,293 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:49:23,297 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:49:23,302 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:49:23,303 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:49:23,305 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-07-25 13:49:23,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:49:23,358 INFO L93 Difference]: Finished difference Result 10 states and 15 transitions. [2018-07-25 13:49:23,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:49:23,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-07-25 13:49:23,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:49:23,372 INFO L225 Difference]: With dead ends: 10 [2018-07-25 13:49:23,373 INFO L226 Difference]: Without dead ends: 6 [2018-07-25 13:49:23,376 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:49:23,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-25 13:49:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-25 13:49:23,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-25 13:49:23,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-07-25 13:49:23,415 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 3 [2018-07-25 13:49:23,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:49:23,416 INFO L472 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-07-25 13:49:23,416 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:49:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-07-25 13:49:23,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-25 13:49:23,416 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:49:23,417 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-07-25 13:49:23,417 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:49:23,417 INFO L82 PathProgramCache]: Analyzing trace with hash 28854189, 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) [2018-07-25 13:49:23,428 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:49:23,774 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:49:23,774 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 13:49:23,775 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 13:49:23,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 13:49:23,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 13:49:23,776 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 4 states. [2018-07-25 13:49:24,006 WARN L169 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2018-07-25 13:49:24,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:49:24,053 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2018-07-25 13:49:24,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 13:49:24,054 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-07-25 13:49:24,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:49:24,055 INFO L225 Difference]: With dead ends: 10 [2018-07-25 13:49:24,055 INFO L226 Difference]: Without dead ends: 8 [2018-07-25 13:49:24,057 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-25 13:49:24,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-25 13:49:24,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-25 13:49:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 13:49:24,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-07-25 13:49:24,062 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 9 transitions. Word has length 5 [2018-07-25 13:49:24,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:49:24,063 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-07-25 13:49:24,063 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 13:49:24,063 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-07-25 13:49:24,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 13:49:24,064 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:49:24,064 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 13:49:24,064 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:49:24,065 INFO L82 PathProgramCache]: Analyzing trace with hash 894431694, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:49:24,077 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:49:25,126 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-07-25 13:49:25,580 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-07-25 13:49:26,820 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-25 13:49:27,156 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-07-25 13:49:27,513 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-07-25 13:49:28,012 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-07-25 13:49:28,847 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-07-25 13:49:29,355 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-07-25 13:49:29,881 WARN L169 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-07-25 13:49:30,348 WARN L169 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-07-25 13:49:31,083 WARN L169 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-07-25 13:49:31,829 WARN L169 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-07-25 13:49:32,404 WARN L169 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-07-25 13:49:33,027 WARN L169 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-07-25 13:49:33,821 WARN L169 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-07-25 13:49:34,682 WARN L169 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2018-07-25 13:49:35,450 WARN L169 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-07-25 13:49:36,506 WARN L169 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-07-25 13:49:37,371 WARN L169 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-07-25 13:49:38,281 WARN L169 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-07-25 13:49:39,274 WARN L169 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-07-25 13:49:40,293 WARN L169 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-07-25 13:49:41,403 WARN L169 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2018-07-25 13:49:42,826 WARN L169 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-07-25 13:49:44,392 WARN L169 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-25 13:49:46,002 WARN L169 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-07-25 13:49:47,700 WARN L169 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-07-25 13:49:49,057 WARN L169 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2018-07-25 13:49:51,003 WARN L169 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2018-07-25 13:49:52,408 WARN L169 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2018-07-25 13:49:53,961 WARN L169 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2018-07-25 13:49:55,427 WARN L169 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2018-07-25 13:49:56,960 WARN L169 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2018-07-25 13:49:58,548 WARN L169 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2018-07-25 13:50:00,252 WARN L169 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2018-07-25 13:50:01,995 WARN L169 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2018-07-25 13:50:03,740 WARN L169 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2018-07-25 13:50:05,557 WARN L169 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2018-07-25 13:50:07,448 WARN L169 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2018-07-25 13:50:10,622 WARN L169 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2018-07-25 13:50:12,704 WARN L169 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-07-25 13:50:14,952 WARN L169 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2018-07-25 13:50:17,181 WARN L169 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2018-07-25 13:50:19,528 WARN L169 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2018-07-25 13:50:21,894 WARN L169 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2018-07-25 13:50:24,336 WARN L169 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2018-07-25 13:50:26,870 WARN L169 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2018-07-25 13:50:29,480 WARN L169 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2018-07-25 13:50:32,162 WARN L169 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2018-07-25 13:50:34,947 WARN L169 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2018-07-25 13:50:39,454 WARN L169 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2018-07-25 13:50:42,442 WARN L169 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2018-07-25 13:50:45,601 WARN L169 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2018-07-25 13:50:48,854 WARN L169 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2018-07-25 13:50:52,255 WARN L169 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2018-07-25 13:50:55,803 WARN L169 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2018-07-25 13:50:59,637 WARN L169 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2018-07-25 13:51:03,230 WARN L169 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2018-07-25 13:51:07,095 WARN L169 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2018-07-25 13:51:10,950 WARN L169 SmtUtils]: Spent 914.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2018-07-25 13:51:14,822 WARN L169 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2018-07-25 13:51:21,659 WARN L169 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2018-07-25 13:51:25,961 WARN L169 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2018-07-25 13:51:30,255 WARN L169 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2018-07-25 13:51:34,678 WARN L169 SmtUtils]: Spent 881.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2018-07-25 13:51:39,304 WARN L169 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2018-07-25 13:51:44,024 WARN L169 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2018-07-25 13:51:49,003 WARN L169 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2018-07-25 13:51:54,130 WARN L169 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2018-07-25 13:51:59,428 WARN L169 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2018-07-25 13:52:04,759 WARN L169 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2018-07-25 13:52:10,113 WARN L169 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2018-07-25 13:52:19,435 WARN L169 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 222 [2018-07-25 13:52:25,282 WARN L169 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 224 [2018-07-25 13:52:31,280 WARN L169 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 226 [2018-07-25 13:52:37,341 WARN L169 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 228 [2018-07-25 13:52:43,640 WARN L169 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 230 [2018-07-25 13:52:50,076 WARN L169 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 232 [2018-07-25 13:52:56,635 WARN L169 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 234 [2018-07-25 13:53:03,190 WARN L169 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 236 [2018-07-25 13:53:09,952 WARN L169 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 238 [2018-07-25 13:53:16,869 WARN L169 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 240 [2018-07-25 13:53:24,146 WARN L169 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 242 [2018-07-25 13:53:37,054 WARN L169 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 247 [2018-07-25 13:53:44,787 WARN L169 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 249 [2018-07-25 13:53:52,797 WARN L169 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 251 Received shutdown request... [2018-07-25 13:53:58,667 WARN L513 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:53:58,667 WARN L541 AbstractCegarLoop]: Verification canceled [2018-07-25 13:53:58,672 WARN L202 ceAbstractionStarter]: Timeout [2018-07-25 13:53:58,673 INFO L202 PluginConnector]: Adding new model nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 01:53:58 BoogieIcfgContainer [2018-07-25 13:53:58,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 13:53:58,674 INFO L168 Benchmark]: Toolchain (without parser) took 276332.52 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -110.6 MB). Free memory was 1.5 GB in the beginning and 1.0 GB in the end (delta: 466.1 MB). Peak memory consumption was 355.4 MB. Max. memory is 7.1 GB. [2018-07-25 13:53:58,675 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 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 13:53:58,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.33 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 13:53:58,676 INFO L168 Benchmark]: Boogie Preprocessor took 22.79 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 13:53:58,677 INFO L168 Benchmark]: RCFGBuilder took 341.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 13:53:58,677 INFO L168 Benchmark]: TraceAbstraction took 275918.20 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -110.6 MB). Free memory was 1.5 GB in the beginning and 1.0 GB in the end (delta: 444.9 MB). Peak memory consumption was 334.3 MB. Max. memory is 7.1 GB. [2018-07-25 13:53:58,681 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 0.17 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 42.33 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 22.79 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 341.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 275918.20 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -110.6 MB). Free memory was 1.5 GB in the beginning and 1.0 GB in the end (delta: 444.9 MB). Peak memory consumption was 334.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 35]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 35). Cancelled while BasicCegarLoop was analyzing trace of length 7 with TraceHistMax 1, while PredicateComparison was comparing new predicate (quantifier-free) to 302 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. TIMEOUT Result, 275.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 5 SDslu, 2 SDs, 0 SdLazy, 11 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_13-53-58-693.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_13-53-58-693.csv Completed graceful shutdown