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/20170319-ConjunctivePathPrograms/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:40:32,464 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:40:32,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:40:32,483 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:40:32,484 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:40:32,485 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:40:32,487 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:40:32,489 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:40:32,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:40:32,494 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:40:32,495 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:40:32,495 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:40:32,496 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:40:32,500 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:40:32,509 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:40:32,509 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:40:32,510 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:40:32,512 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:40:32,519 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:40:32,521 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:40:32,521 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:40:32,526 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:40:32,530 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 08:40:32,532 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 08:40:32,532 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 08:40:32,533 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 08:40:32,534 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 08:40:32,534 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 08:40:32,535 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 08:40:32,538 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 08:40:32,538 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 08:40:32,539 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 08:40:32,539 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 08:40:32,540 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 08:40:32,542 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 08:40:32,543 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 08:40:32,543 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 08:40:32,557 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:40:32,557 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:40:32,558 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:40:32,559 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 08:40:32,559 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 08:40:32,559 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:40:32,559 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:40:32,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:40:32,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:40:32,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:40:32,654 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:40:32,654 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:40:32,655 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl [2018-09-26 08:40:32,655 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl' [2018-09-26 08:40:32,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:40:32,722 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:40:32,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:40:32,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:40:32,724 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:40:32,744 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 26.09 08:40:32" (1/1) ... [2018-09-26 08:40:32,757 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 26.09 08:40:32" (1/1) ... [2018-09-26 08:40:32,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:40:32,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:40:32,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:40:32,766 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:40:32,777 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 26.09 08:40:32" (1/1) ... [2018-09-26 08:40:32,777 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 26.09 08:40:32" (1/1) ... [2018-09-26 08:40:32,778 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 26.09 08:40:32" (1/1) ... [2018-09-26 08:40:32,778 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 26.09 08:40:32" (1/1) ... [2018-09-26 08:40:32,782 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 26.09 08:40:32" (1/1) ... [2018-09-26 08:40:32,784 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 26.09 08:40:32" (1/1) ... [2018-09-26 08:40:32,786 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 26.09 08:40:32" (1/1) ... [2018-09-26 08:40:32,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:40:32,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:40:32,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:40:32,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:40:32,792 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 26.09 08:40:32" (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 08:40:32,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-26 08:40:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:40:32,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:40:33,149 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:40:33,150 INFO L202 PluginConnector]: Adding new model nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:40:33 BoogieIcfgContainer [2018-09-26 08:40:33,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:40:33,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:40:33,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:40:33,155 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:40:33,155 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 26.09 08:40:32" (1/2) ... [2018-09-26 08:40:33,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55034e0f and model type nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:40:33, skipping insertion in model container [2018-09-26 08:40:33,157 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 26.09 08:40:33" (2/2) ... [2018-09-26 08:40:33,159 INFO L112 eAbstractionObserver]: Analyzing ICFG nested1.i_4.bplTransformedIcfg_BEv2_12.bpl [2018-09-26 08:40:33,174 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:40:33,185 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:40:33,233 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:40:33,233 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:40:33,234 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:40:33,234 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 08:40:33,234 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:40:33,234 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:40:33,234 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:40:33,235 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:40:33,235 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:40:33,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-09-26 08:40:33,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-26 08:40:33,258 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:40:33,259 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-26 08:40:33,260 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:40:33,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:40:33,267 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 [2018-09-26 08:40:33,288 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:40:33,566 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2018-09-26 08:40:33,658 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:40:33,658 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 08:40:33,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 08:40:33,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 08:40:33,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:40:33,672 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-09-26 08:40:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:40:33,732 INFO L93 Difference]: Finished difference Result 10 states and 15 transitions. [2018-09-26 08:40:33,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 08:40:33,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-26 08:40:33,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:40:33,746 INFO L225 Difference]: With dead ends: 10 [2018-09-26 08:40:33,746 INFO L226 Difference]: Without dead ends: 6 [2018-09-26 08:40:33,750 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:40:33,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-26 08:40:33,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-26 08:40:33,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-26 08:40:33,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-09-26 08:40:33,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 3 [2018-09-26 08:40:33,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:40:33,781 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-09-26 08:40:33,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 08:40:33,781 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-26 08:40:33,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 08:40:33,781 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:40:33,782 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-09-26 08:40:33,782 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:40:33,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:40:33,783 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:40:33,793 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:40:34,098 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-26 08:40:34,152 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:40:34,152 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 08:40:34,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:40:34,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:40:34,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:40:34,154 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 4 states. [2018-09-26 08:40:34,392 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2018-09-26 08:40:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:40:34,472 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2018-09-26 08:40:34,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:40:34,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-09-26 08:40:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:40:34,474 INFO L225 Difference]: With dead ends: 10 [2018-09-26 08:40:34,474 INFO L226 Difference]: Without dead ends: 8 [2018-09-26 08:40:34,475 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-09-26 08:40:34,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-26 08:40:34,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-09-26 08:40:34,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:40:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-09-26 08:40:34,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 9 transitions. Word has length 5 [2018-09-26 08:40:34,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:40:34,481 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-09-26 08:40:34,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:40:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-09-26 08:40:34,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:40:34,482 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:40:34,482 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-09-26 08:40:34,483 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:40:34,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:40:34,483 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 [2018-09-26 08:40:34,492 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:40:35,405 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-26 08:40:35,966 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-26 08:40:37,296 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 08:40:37,614 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-09-26 08:40:37,976 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-09-26 08:40:38,519 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-09-26 08:40:39,343 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-09-26 08:40:39,971 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-09-26 08:40:40,482 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-09-26 08:40:40,987 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-09-26 08:40:41,685 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-09-26 08:40:42,440 WARN L178 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-09-26 08:40:43,038 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-09-26 08:40:43,654 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-09-26 08:40:44,302 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-09-26 08:40:45,262 WARN L178 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2018-09-26 08:40:46,024 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-09-26 08:40:47,088 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-09-26 08:40:47,931 WARN L178 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-09-26 08:40:48,818 WARN L178 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-09-26 08:40:49,746 WARN L178 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-09-26 08:40:50,805 WARN L178 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-09-26 08:40:51,875 WARN L178 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2018-09-26 08:40:53,292 WARN L178 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-09-26 08:40:54,870 WARN L178 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-09-26 08:40:56,691 WARN L178 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-09-26 08:40:58,418 WARN L178 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-09-26 08:40:59,718 WARN L178 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2018-09-26 08:41:01,725 WARN L178 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2018-09-26 08:41:03,143 WARN L178 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2018-09-26 08:41:04,582 WARN L178 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2018-09-26 08:41:06,372 WARN L178 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2018-09-26 08:41:07,890 WARN L178 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2018-09-26 08:41:09,447 WARN L178 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2018-09-26 08:41:11,195 WARN L178 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2018-09-26 08:41:12,949 WARN L178 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2018-09-26 08:41:14,697 WARN L178 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2018-09-26 08:41:16,798 WARN L178 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2018-09-26 08:41:18,681 WARN L178 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2018-09-26 08:41:21,899 WARN L178 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2018-09-26 08:41:23,975 WARN L178 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-09-26 08:41:26,216 WARN L178 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2018-09-26 08:41:28,406 WARN L178 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2018-09-26 08:41:30,691 WARN L178 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2018-09-26 08:41:33,051 WARN L178 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2018-09-26 08:41:35,483 WARN L178 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2018-09-26 08:41:38,030 WARN L178 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2018-09-26 08:41:40,564 WARN L178 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2018-09-26 08:41:43,251 WARN L178 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2018-09-26 08:41:46,117 WARN L178 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2018-09-26 08:41:50,605 WARN L178 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2018-09-26 08:41:53,648 WARN L178 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2018-09-26 08:41:56,808 WARN L178 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2018-09-26 08:42:00,011 WARN L178 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2018-09-26 08:42:03,472 WARN L178 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2018-09-26 08:42:06,912 WARN L178 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2018-09-26 08:42:10,728 WARN L178 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2018-09-26 08:42:14,316 WARN L178 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2018-09-26 08:42:18,086 WARN L178 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2018-09-26 08:42:21,918 WARN L178 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2018-09-26 08:42:25,787 WARN L178 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2018-09-26 08:42:32,513 WARN L178 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2018-09-26 08:42:36,777 WARN L178 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2018-09-26 08:42:41,039 WARN L178 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2018-09-26 08:42:45,446 WARN L178 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2018-09-26 08:42:50,146 WARN L178 SmtUtils]: Spent 908.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2018-09-26 08:42:54,997 WARN L178 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2018-09-26 08:43:00,073 WARN L178 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2018-09-26 08:43:05,206 WARN L178 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2018-09-26 08:43:10,442 WARN L178 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2018-09-26 08:43:15,773 WARN L178 SmtUtils]: Spent 954.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2018-09-26 08:43:21,240 WARN L178 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2018-09-26 08:43:30,611 WARN L178 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 222 [2018-09-26 08:43:36,505 WARN L178 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 224 [2018-09-26 08:43:42,462 WARN L178 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 226 [2018-09-26 08:43:48,393 WARN L178 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 228 [2018-09-26 08:43:54,530 WARN L178 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 230 [2018-09-26 08:44:00,830 WARN L178 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 232 [2018-09-26 08:44:07,524 WARN L178 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 234 [2018-09-26 08:44:14,040 WARN L178 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 236 [2018-09-26 08:44:20,944 WARN L178 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 238 [2018-09-26 08:44:28,039 WARN L178 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 240 [2018-09-26 08:44:35,075 WARN L178 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 242 [2018-09-26 08:44:47,355 WARN L178 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 247 [2018-09-26 08:44:54,953 WARN L178 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 249 [2018-09-26 08:45:02,878 WARN L178 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 251 Received shutdown request... [2018-09-26 08:45:08,115 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:45:08,116 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 08:45:08,121 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 08:45:08,122 INFO L202 PluginConnector]: Adding new model nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:45:08 BoogieIcfgContainer [2018-09-26 08:45:08,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:45:08,123 INFO L168 Benchmark]: Toolchain (without parser) took 275402.76 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -27.3 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 200.6 MB). Peak memory consumption was 173.4 MB. Max. memory is 7.1 GB. [2018-09-26 08:45:08,124 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 08:45:08,125 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.57 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 08:45:08,125 INFO L168 Benchmark]: Boogie Preprocessor took 22.47 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 08:45:08,126 INFO L168 Benchmark]: RCFGBuilder took 362.00 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 08:45:08,126 INFO L168 Benchmark]: TraceAbstraction took 274970.80 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -27.3 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 179.5 MB). Peak memory consumption was 152.2 MB. Max. memory is 7.1 GB. [2018-09-26 08:45:08,130 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 41.57 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 22.47 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 362.00 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 274970.80 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -27.3 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 179.5 MB). Peak memory consumption was 152.2 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 301 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. TIMEOUT Result, 274.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 5 SDslu, 2 SDs, 0 SdLazy, 11 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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-0-2018-09-26_08-45-08-143.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-0-2018-09-26_08-45-08-143.csv Completed graceful shutdown