java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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/eureka_05.i_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:48:49,316 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:48:49,319 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:48:49,332 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:48:49,332 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:48:49,333 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:48:49,334 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:48:49,344 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:48:49,346 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:48:49,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:48:49,348 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:48:49,348 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:48:49,349 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:48:49,351 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:48:49,352 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:48:49,352 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:48:49,353 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:48:49,355 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:48:49,357 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:48:49,359 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:48:49,360 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:48:49,361 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:48:49,364 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 08:48:49,364 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 08:48:49,364 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 08:48:49,365 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 08:48:49,366 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 08:48:49,367 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 08:48:49,367 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 08:48:49,369 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 08:48:49,369 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 08:48:49,369 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 08:48:49,370 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 08:48:49,370 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 08:48:49,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 08:48:49,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 08:48:49,374 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-09-26 08:48:49,389 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:48:49,389 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:48:49,391 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:48:49,391 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 08:48:49,391 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 08:48:49,392 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:48:49,392 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:48:49,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:48:49,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:48:49,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:48:49,486 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:48:49,487 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:48:49,488 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/eureka_05.i_5.bpl [2018-09-26 08:48:49,488 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/eureka_05.i_5.bpl' [2018-09-26 08:48:49,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:48:49,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:48:49,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:48:49,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:48:49,572 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:48:49,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/1) ... [2018-09-26 08:48:49,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/1) ... [2018-09-26 08:48:49,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:48:49,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:48:49,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:48:49,622 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:48:49,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/1) ... [2018-09-26 08:48:49,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/1) ... [2018-09-26 08:48:49,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/1) ... [2018-09-26 08:48:49,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/1) ... [2018-09-26 08:48:49,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/1) ... [2018-09-26 08:48:49,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/1) ... [2018-09-26 08:48:49,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/1) ... [2018-09-26 08:48:49,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:48:49,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:48:49,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:48:49,652 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:48:49,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (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 [2018-09-26 08:48:49,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:48:49,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:48:49,986 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:48:49,986 INFO L202 PluginConnector]: Adding new model eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:48:49 BoogieIcfgContainer [2018-09-26 08:48:49,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:48:49,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:48:49,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:48:50,001 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:48:50,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:48:49" (1/2) ... [2018-09-26 08:48:50,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6a5873 and model type eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:48:50, skipping insertion in model container [2018-09-26 08:48:50,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:48:49" (2/2) ... [2018-09-26 08:48:50,017 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_05.i_5.bpl [2018-09-26 08:48:50,043 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:48:50,063 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:48:50,136 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:48:50,137 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:48:50,137 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:48:50,137 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 08:48:50,138 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:48:50,138 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:48:50,138 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:48:50,138 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:48:50,139 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:48:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2018-09-26 08:48:50,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:48:50,164 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:48:50,165 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-09-26 08:48:50,166 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:48:50,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:48:50,173 INFO L82 PathProgramCache]: Analyzing trace with hash 889539531, 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 [2018-09-26 08:48:50,197 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:48:50,531 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:48:50,531 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 08:48:50,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:48:50,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:48:50,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:48:50,545 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2018-09-26 08:48:50,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:48:50,729 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2018-09-26 08:48:50,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:48:50,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-09-26 08:48:50,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:48:50,741 INFO L225 Difference]: With dead ends: 17 [2018-09-26 08:48:50,742 INFO L226 Difference]: Without dead ends: 11 [2018-09-26 08:48:50,745 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-26 08:48:50,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-26 08:48:50,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-09-26 08:48:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-26 08:48:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-09-26 08:48:50,782 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2018-09-26 08:48:50,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:48:50,783 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-09-26 08:48:50,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:48:50,783 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-09-26 08:48:50,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 08:48:50,784 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:48:50,784 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 08:48:50,784 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:48:50,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:48:50,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1513351841, 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 [2018-09-26 08:48:50,793 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:48:51,533 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2018-09-26 08:48:52,169 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-26 08:48:54,527 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:48:54,527 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-26 08:48:54,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 08:48:54,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 08:48:54,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2018-09-26 08:48:54,532 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 5 states. [2018-09-26 08:48:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:48:54,723 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-09-26 08:48:54,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:48:54,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-09-26 08:48:54,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:48:54,724 INFO L225 Difference]: With dead ends: 19 [2018-09-26 08:48:54,724 INFO L226 Difference]: Without dead ends: 17 [2018-09-26 08:48:54,727 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 412 SyntacticMatches, 105 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2018-09-26 08:48:54,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-26 08:48:54,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2018-09-26 08:48:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-26 08:48:54,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-09-26 08:48:54,734 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 10 [2018-09-26 08:48:54,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:48:54,735 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-09-26 08:48:54,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 08:48:54,735 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-09-26 08:48:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 08:48:54,736 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:48:54,736 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 08:48:54,736 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:48:54,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:48:54,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1595056645, 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 [2018-09-26 08:48:54,745 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:48:55,922 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2018-09-26 08:48:58,730 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2018-09-26 08:49:04,197 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2018-09-26 08:49:05,152 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2018-09-26 08:49:10,136 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2018-09-26 08:49:17,135 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2018-09-26 08:49:17,890 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2018-09-26 08:49:18,694 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2018-09-26 08:49:27,435 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2018-09-26 08:49:28,043 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-09-26 08:49:40,890 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2018-09-26 08:49:42,157 WARN L178 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2018-09-26 08:49:43,356 WARN L178 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2018-09-26 08:50:00,458 WARN L178 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2018-09-26 08:50:01,380 WARN L178 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-09-26 08:50:26,444 WARN L178 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2018-09-26 08:50:28,265 WARN L178 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-09-26 08:50:30,011 WARN L178 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2018-09-26 08:51:01,616 WARN L178 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2018-09-26 08:51:02,947 WARN L178 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-09-26 08:51:47,340 WARN L178 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2018-09-26 08:51:49,418 WARN L178 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2018-09-26 08:52:44,277 WARN L178 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 Received shutdown request... [2018-09-26 08:53:24,063 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:53:24,064 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 08:53:24,069 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 08:53:24,070 INFO L202 PluginConnector]: Adding new model eureka_05.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:53:24 BoogieIcfgContainer [2018-09-26 08:53:24,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:53:24,071 INFO L168 Benchmark]: Toolchain (without parser) took 274503.06 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -188.7 MB). Free memory was 1.5 GB in the beginning and 972.3 MB in the end (delta: 486.1 MB). Peak memory consumption was 297.3 MB. Max. memory is 7.1 GB. [2018-09-26 08:53:24,072 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 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. [2018-09-26 08:53:24,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.50 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. [2018-09-26 08:53:24,073 INFO L168 Benchmark]: Boogie Preprocessor took 28.34 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. [2018-09-26 08:53:24,074 INFO L168 Benchmark]: RCFGBuilder took 335.76 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 08:53:24,075 INFO L168 Benchmark]: TraceAbstraction took 274081.61 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -188.7 MB). Free memory was 1.4 GB in the beginning and 972.3 MB in the end (delta: 464.9 MB). Peak memory consumption was 276.2 MB. Max. memory is 7.1 GB. [2018-09-26 08:53:24,079 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 0.18 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 49.50 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 28.34 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 335.76 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 274081.61 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -188.7 MB). Free memory was 1.4 GB in the beginning and 972.3 MB in the end (delta: 464.9 MB). Peak memory consumption was 276.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 76). Cancelled while BasicCegarLoop was analyzing trace of length 13 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 84 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. TIMEOUT Result, 273.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 27 SDslu, 11 SDs, 0 SdLazy, 29 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 630 GetRequests, 503 SyntacticMatches, 105 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 3.9s 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/eureka_05.i_5.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-53-24-091.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/eureka_05.i_5.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-53-24-091.csv Completed graceful shutdown