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/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:25:15,094 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:25:15,097 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:25:15,112 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:25:15,114 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:25:15,117 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:25:15,118 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:25:15,120 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:25:15,124 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:25:15,126 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:25:15,127 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:25:15,134 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:25:15,135 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:25:15,136 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:25:15,140 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:25:15,141 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:25:15,142 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:25:15,146 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:25:15,150 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:25:15,151 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:25:15,153 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:25:15,156 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:25:15,159 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:25:15,159 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:25:15,159 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:25:15,165 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:25:15,166 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:25:15,167 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:25:15,169 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:25:15,170 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:25:15,170 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:25:15,171 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 14:25:15,173 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 14:25:15,173 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 14:25:15,175 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 14:25:15,176 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 14:25:15,176 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 14:25:15,193 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:25:15,193 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:25:15,195 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:25:15,195 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:25:15,198 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 14:25:15,199 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:25:15,199 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:25:15,278 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:25:15,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:25:15,295 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:25:15,296 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:25:15,297 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:25:15,297 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl [2018-07-25 14:25:15,297 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl' [2018-07-25 14:25:15,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:25:15,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:25:15,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:25:15,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:25:15,340 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:25:15,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/1) ... [2018-07-25 14:25:15,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/1) ... [2018-07-25 14:25:15,377 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 14:25:15,377 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 14:25:15,377 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 14:25:15,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:25:15,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:25:15,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:25:15,380 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:25:15,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/1) ... [2018-07-25 14:25:15,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/1) ... [2018-07-25 14:25:15,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/1) ... [2018-07-25 14:25:15,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/1) ... [2018-07-25 14:25:15,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/1) ... [2018-07-25 14:25:15,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/1) ... [2018-07-25 14:25:15,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/1) ... [2018-07-25 14:25:15,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:25:15,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:25:15,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:25:15,402 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:25:15,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (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 14:25:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2018-07-25 14:25:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2018-07-25 14:25:15,738 INFO L270 CfgBuilder]: Using library mode [2018-07-25 14:25:15,739 INFO L202 PluginConnector]: Adding new model doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:25:15 BoogieIcfgContainer [2018-07-25 14:25:15,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:25:15,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:25:15,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:25:15,744 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:25:15,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:15" (1/2) ... [2018-07-25 14:25:15,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40007878 and model type doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:25:15, skipping insertion in model container [2018-07-25 14:25:15,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:25:15" (2/2) ... [2018-07-25 14:25:15,748 INFO L112 eAbstractionObserver]: Analyzing ICFG doubleLoopUniformIterations.bpl [2018-07-25 14:25:15,758 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:25:15,767 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-07-25 14:25:15,814 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:25:15,815 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:25:15,815 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:25:15,815 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:25:15,816 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:25:15,816 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:25:15,816 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:25:15,816 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:25:15,816 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:25:15,830 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-07-25 14:25:15,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 14:25:15,838 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:25:15,839 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 14:25:15,841 INFO L415 AbstractCegarLoop]: === Iteration 1 === [MainErr1ASSERT_VIOLATIONASSERT, MainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:25:15,846 INFO L82 PathProgramCache]: Analyzing trace with hash 926725, 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 14:25:15,876 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:25:15,968 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:25:15,968 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 14:25:15,972 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 14:25:15,977 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 14:25:15,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 14:25:15,980 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-07-25 14:25:16,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:25:16,114 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2018-07-25 14:25:16,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 14:25:16,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-25 14:25:16,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:25:16,143 INFO L225 Difference]: With dead ends: 15 [2018-07-25 14:25:16,145 INFO L226 Difference]: Without dead ends: 8 [2018-07-25 14:25:16,148 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 14:25:16,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-25 14:25:16,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-25 14:25:16,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-25 14:25:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-07-25 14:25:16,182 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 10 transitions. Word has length 4 [2018-07-25 14:25:16,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:25:16,182 INFO L472 AbstractCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-07-25 14:25:16,183 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 14:25:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2018-07-25 14:25:16,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-25 14:25:16,185 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:25:16,186 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-07-25 14:25:16,186 INFO L415 AbstractCegarLoop]: === Iteration 2 === [MainErr1ASSERT_VIOLATIONASSERT, MainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:25:16,186 INFO L82 PathProgramCache]: Analyzing trace with hash 28728519, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:25:16,202 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:25:16,388 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:25:16,388 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 14:25:16,389 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:25:16,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:25:16,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 14:25:16,390 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. Second operand 4 states. [2018-07-25 14:25:16,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:25:16,428 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-25 14:25:16,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 14:25:16,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-07-25 14:25:16,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:25:16,429 INFO L225 Difference]: With dead ends: 11 [2018-07-25 14:25:16,429 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 14:25:16,431 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 14:25:16,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 14:25:16,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 14:25:16,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 14:25:16,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-07-25 14:25:16,435 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2018-07-25 14:25:16,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:25:16,435 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-07-25 14:25:16,435 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:25:16,435 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-07-25 14:25:16,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 14:25:16,436 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:25:16,436 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 14:25:16,437 INFO L415 AbstractCegarLoop]: === Iteration 3 === [MainErr1ASSERT_VIOLATIONASSERT, MainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:25:16,437 INFO L82 PathProgramCache]: Analyzing trace with hash 891297133, 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 14:25:16,447 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:25:18,361 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-07-25 14:25:22,758 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2018-07-25 14:25:23,245 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2018-07-25 14:25:23,783 WARN L169 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2018-07-25 14:25:24,444 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2018-07-25 14:25:24,990 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2018-07-25 14:25:25,625 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2018-07-25 14:25:26,291 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2018-07-25 14:25:27,022 WARN L169 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2018-07-25 14:25:27,843 WARN L169 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2018-07-25 14:25:28,658 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2018-07-25 14:25:29,646 WARN L169 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2018-07-25 14:25:30,613 WARN L169 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2018-07-25 14:25:31,532 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2018-07-25 14:25:33,234 WARN L169 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2018-07-25 14:25:35,459 WARN L169 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2018-07-25 14:25:37,077 WARN L169 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2018-07-25 14:25:38,286 WARN L169 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2018-07-25 14:25:39,746 WARN L169 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2018-07-25 14:25:41,064 WARN L169 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2018-07-25 14:25:42,456 WARN L169 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 297 [2018-07-25 14:25:43,975 WARN L169 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2018-07-25 14:25:45,542 WARN L169 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2018-07-25 14:25:47,192 WARN L169 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2018-07-25 14:25:48,841 WARN L169 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2018-07-25 14:25:50,676 WARN L169 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2018-07-25 14:25:52,516 WARN L169 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2018-07-25 14:25:54,445 WARN L169 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2018-07-25 14:25:56,398 WARN L169 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2018-07-25 14:25:58,473 WARN L169 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2018-07-25 14:26:00,670 WARN L169 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 377 [2018-07-25 14:26:02,850 WARN L169 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2018-07-25 14:26:05,185 WARN L169 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2018-07-25 14:26:07,694 WARN L169 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2018-07-25 14:26:10,272 WARN L169 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 409 [2018-07-25 14:26:12,899 WARN L169 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 417 [2018-07-25 14:26:15,546 WARN L169 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2018-07-25 14:26:18,362 WARN L169 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 433 [2018-07-25 14:26:21,284 WARN L169 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2018-07-25 14:26:24,341 WARN L169 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2018-07-25 14:26:27,513 WARN L169 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2018-07-25 14:26:30,788 WARN L169 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 465 [2018-07-25 14:26:34,126 WARN L169 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 473 [2018-07-25 14:26:37,667 WARN L169 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2018-07-25 14:26:41,239 WARN L169 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 489 [2018-07-25 14:26:44,958 WARN L169 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 497 [2018-07-25 14:26:48,815 WARN L169 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 505 [2018-07-25 14:26:52,947 WARN L169 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2018-07-25 14:26:57,031 WARN L169 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 521 [2018-07-25 14:27:01,351 WARN L169 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 529 [2018-07-25 14:27:05,628 WARN L169 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 537 [2018-07-25 14:27:10,051 WARN L169 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2018-07-25 14:27:14,655 WARN L169 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 553 [2018-07-25 14:27:19,491 WARN L169 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2018-07-25 14:27:24,457 WARN L169 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2018-07-25 14:27:29,738 WARN L169 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 577 [2018-07-25 14:27:35,001 WARN L169 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2018-07-25 14:27:40,358 WARN L169 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2018-07-25 14:27:45,809 WARN L169 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 601 [2018-07-25 14:27:51,403 WARN L169 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2018-07-25 14:27:57,264 WARN L169 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 617 [2018-07-25 14:28:03,232 WARN L169 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2018-07-25 14:28:09,342 WARN L169 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2018-07-25 14:28:15,892 WARN L169 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2018-07-25 14:28:22,296 WARN L169 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 649 [2018-07-25 14:28:28,959 WARN L169 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2018-07-25 14:28:35,718 WARN L169 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2018-07-25 14:28:42,668 WARN L169 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 673 [2018-07-25 14:28:49,829 WARN L169 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 681 [2018-07-25 14:28:57,407 WARN L169 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 689 [2018-07-25 14:29:05,124 WARN L169 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 697 [2018-07-25 14:29:12,826 WARN L169 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 705 [2018-07-25 14:29:20,577 WARN L169 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 713 [2018-07-25 14:29:28,702 WARN L169 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 721 [2018-07-25 14:29:36,865 WARN L169 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 729 [2018-07-25 14:29:45,139 WARN L169 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 737 [2018-07-25 14:29:53,547 WARN L169 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 745 Received shutdown request... [2018-07-25 14:29:57,677 WARN L513 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:29:57,677 WARN L541 AbstractCegarLoop]: Verification canceled [2018-07-25 14:29:57,683 WARN L202 ceAbstractionStarter]: Timeout [2018-07-25 14:29:57,684 INFO L202 PluginConnector]: Adding new model doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 02:29:57 BoogieIcfgContainer [2018-07-25 14:29:57,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 14:29:57,685 INFO L168 Benchmark]: Toolchain (without parser) took 282346.48 ms. Allocated memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: -357.6 MB). Free memory was 1.5 GB in the beginning and 958.8 MB in the end (delta: 518.0 MB). Peak memory consumption was 160.4 MB. Max. memory is 7.1 GB. [2018-07-25 14:29:57,686 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 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 14:29:57,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.57 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. [2018-07-25 14:29:57,687 INFO L168 Benchmark]: Boogie Preprocessor took 20.83 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 14:29:57,688 INFO L168 Benchmark]: RCFGBuilder took 338.08 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 14:29:57,688 INFO L168 Benchmark]: TraceAbstraction took 281943.70 ms. Allocated memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: -357.6 MB). Free memory was 1.5 GB in the beginning and 958.8 MB in the end (delta: 496.8 MB). Peak memory consumption was 139.3 MB. Max. memory is 7.1 GB. [2018-07-25 14:29:57,693 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 0.15 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 39.57 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 20.83 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 338.08 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 281943.70 ms. Allocated memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: -357.6 MB). Free memory was 1.5 GB in the beginning and 958.8 MB in the end (delta: 496.8 MB). Peak memory consumption was 139.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 24]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 24). Cancelled while BasicCegarLoop was analyzing trace of length 7 with TraceHistMax 1, while Pdr was Timeout or canceled while running Pdr. - TimeoutResultAtElement [Line: 23]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 23). Cancelled while BasicCegarLoop was analyzing trace of length 7 with TraceHistMax 1, while Pdr was Timeout or canceled while running Pdr. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. TIMEOUT Result, 281.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s 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/doubleLoopUniformIterations.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_14-29-57-705.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/doubleLoopUniformIterations.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_14-29-57-705.csv Completed graceful shutdown