java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/gascake/GasCake01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:16:38,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:16:38,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:16:38,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:16:38,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:16:38,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:16:38,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:16:38,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:16:38,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:16:38,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:16:38,111 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:16:38,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:16:38,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:16:38,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:16:38,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:16:38,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:16:38,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:16:38,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:16:38,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:16:38,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:16:38,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:16:38,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:16:38,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:16:38,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:16:38,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 11:16:38,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:16:38,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:16:38,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:16:38,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:16:38,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:16:38,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:16:38,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:16:38,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:16:38,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:16:38,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:16:38,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:16:38,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:16:38,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:16:38,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:16:38,215 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:16:38,216 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:16:38,216 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/gascake/GasCake01.bpl [2019-08-05 11:16:38,217 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/gascake/GasCake01.bpl' [2019-08-05 11:16:38,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:16:38,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:16:38,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:16:38,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:16:38,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:16:38,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/1) ... [2019-08-05 11:16:38,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/1) ... [2019-08-05 11:16:38,296 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:16:38,296 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:16:38,297 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:16:38,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:16:38,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:16:38,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:16:38,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:16:38,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/1) ... [2019-08-05 11:16:38,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/1) ... [2019-08-05 11:16:38,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/1) ... [2019-08-05 11:16:38,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/1) ... [2019-08-05 11:16:38,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/1) ... [2019-08-05 11:16:38,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/1) ... [2019-08-05 11:16:38,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/1) ... [2019-08-05 11:16:38,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:16:38,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:16:38,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:16:38,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:16:38,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (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 [2019-08-05 11:16:38,396 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 11:16:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 11:16:38,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 11:16:38,554 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:16:38,555 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 11:16:38,556 INFO L202 PluginConnector]: Adding new model GasCake01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:16:38 BoogieIcfgContainer [2019-08-05 11:16:38,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:16:38,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:16:38,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:16:38,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:16:38,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:38" (1/2) ... [2019-08-05 11:16:38,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b0c14 and model type GasCake01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:16:38, skipping insertion in model container [2019-08-05 11:16:38,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GasCake01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:16:38" (2/2) ... [2019-08-05 11:16:38,564 INFO L109 eAbstractionObserver]: Analyzing ICFG GasCake01.bpl [2019-08-05 11:16:38,574 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:16:38,581 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-08-05 11:16:38,598 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-08-05 11:16:38,624 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:16:38,625 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:16:38,625 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:16:38,625 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:16:38,625 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:16:38,626 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:16:38,626 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:16:38,626 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:16:38,626 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:16:38,640 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-08-05 11:16:38,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:16:38,648 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:38,649 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:16:38,652 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2019-08-05 11:16:38,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:38,658 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-08-05 11:16:38,704 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:38,735 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 11:16:38,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:16:38,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:16:38,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:16:38,802 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:16:38,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:16:38,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:16:38,817 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-08-05 11:16:38,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:38,949 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 11:16:38,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:16:38,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 11:16:38,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:38,965 INFO L225 Difference]: With dead ends: 8 [2019-08-05 11:16:38,965 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 11:16:38,967 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:16:38,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 11:16:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-05 11:16:39,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 11:16:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 11:16:39,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 2 [2019-08-05 11:16:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:39,007 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 11:16:39,008 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:16:39,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 11:16:39,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:16:39,008 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:39,009 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:16:39,009 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2019-08-05 11:16:39,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:39,010 INFO L82 PathProgramCache]: Analyzing trace with hash 926597, now seen corresponding path program 1 times [2019-08-05 11:16:39,011 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:39,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 11:16:39,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:16:39,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:16:39,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:16:39,229 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:16:39,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:16:39,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:16:39,231 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-08-05 11:16:39,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:39,370 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-08-05 11:16:39,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:16:39,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 11:16:39,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:39,371 INFO L225 Difference]: With dead ends: 12 [2019-08-05 11:16:39,371 INFO L226 Difference]: Without dead ends: 12 [2019-08-05 11:16:39,373 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:16:39,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-05 11:16:39,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 9. [2019-08-05 11:16:39,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 11:16:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 11:16:39,377 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2019-08-05 11:16:39,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:39,377 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 11:16:39,377 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:16:39,377 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 11:16:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 11:16:39,378 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:39,378 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-08-05 11:16:39,379 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2019-08-05 11:16:39,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:39,379 INFO L82 PathProgramCache]: Analyzing trace with hash 28724540, now seen corresponding path program 1 times [2019-08-05 11:16:39,380 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:39,399 WARN L254 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-05 11:16:39,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:39,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:16:39,544 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:16:39,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2019-08-05 11:16:39,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:16:39,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:16:39,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:16:39,546 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-08-05 11:16:39,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:39,635 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-08-05 11:16:39,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:16:39,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-08-05 11:16:39,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:39,637 INFO L225 Difference]: With dead ends: 11 [2019-08-05 11:16:39,637 INFO L226 Difference]: Without dead ends: 11 [2019-08-05 11:16:39,638 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:16:39,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-08-05 11:16:39,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-08-05 11:16:39,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-08-05 11:16:39,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-08-05 11:16:39,641 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2019-08-05 11:16:39,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:39,641 INFO L475 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-08-05 11:16:39,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:16:39,642 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-08-05 11:16:39,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-05 11:16:39,642 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:39,642 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2019-08-05 11:16:39,643 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2019-08-05 11:16:39,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:39,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1834480318, now seen corresponding path program 1 times [2019-08-05 11:16:39,644 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:39,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-05 11:16:39,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:16:39,864 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:16:39,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 11:16:39,864 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:16:39,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:16:39,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:16:39,866 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 5 states. [2019-08-05 11:16:40,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:40,035 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-08-05 11:16:40,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:16:40,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-08-05 11:16:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:40,036 INFO L225 Difference]: With dead ends: 15 [2019-08-05 11:16:40,036 INFO L226 Difference]: Without dead ends: 15 [2019-08-05 11:16:40,037 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:16:40,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-08-05 11:16:40,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2019-08-05 11:16:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-08-05 11:16:40,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-08-05 11:16:40,041 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2019-08-05 11:16:40,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:40,041 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-08-05 11:16:40,041 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:16:40,041 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-08-05 11:16:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 11:16:40,042 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:40,042 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1] [2019-08-05 11:16:40,042 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2019-08-05 11:16:40,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:40,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1034315043, now seen corresponding path program 2 times [2019-08-05 11:16:40,044 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:40,071 WARN L254 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 19 conjunts are in the unsatisfiable core [2019-08-05 11:16:40,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:40,195 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:16:40,196 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:16:40,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 11:16:40,196 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:16:40,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:16:40,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:16:40,197 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2019-08-05 11:16:40,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:40,336 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-08-05 11:16:40,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:16:40,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-08-05 11:16:40,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:40,337 INFO L225 Difference]: With dead ends: 14 [2019-08-05 11:16:40,337 INFO L226 Difference]: Without dead ends: 14 [2019-08-05 11:16:40,338 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:16:40,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-08-05 11:16:40,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-08-05 11:16:40,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-08-05 11:16:40,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-08-05 11:16:40,342 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2019-08-05 11:16:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:40,344 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-08-05 11:16:40,344 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:16:40,344 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-08-05 11:16:40,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-05 11:16:40,344 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:40,345 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1] [2019-08-05 11:16:40,345 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2019-08-05 11:16:40,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:40,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1839312101, now seen corresponding path program 2 times [2019-08-05 11:16:40,347 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:40,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 19 conjunts are in the unsatisfiable core [2019-08-05 11:16:40,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:40,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:16:40,647 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:16:40,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 11:16:40,647 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 11:16:40,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 11:16:40,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-08-05 11:16:40,649 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2019-08-05 11:16:40,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:40,742 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-08-05 11:16:40,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-05 11:16:40,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-08-05 11:16:40,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:40,743 INFO L225 Difference]: With dead ends: 18 [2019-08-05 11:16:40,743 INFO L226 Difference]: Without dead ends: 18 [2019-08-05 11:16:40,744 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-08-05 11:16:40,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-08-05 11:16:40,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2019-08-05 11:16:40,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-08-05 11:16:40,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-08-05 11:16:40,747 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2019-08-05 11:16:40,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:40,747 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-08-05 11:16:40,747 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 11:16:40,748 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-08-05 11:16:40,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-08-05 11:16:40,748 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:40,748 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1] [2019-08-05 11:16:40,748 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2019-08-05 11:16:40,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:40,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1184100316, now seen corresponding path program 3 times [2019-08-05 11:16:40,750 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:40,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 21 conjunts are in the unsatisfiable core [2019-08-05 11:16:40,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:41,576 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2019-08-05 11:16:41,884 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2019-08-05 11:16:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:16:41,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:16:41,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-08-05 11:16:41,921 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 11:16:41,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 11:16:41,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-08-05 11:16:41,922 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 7 states. [2019-08-05 11:16:41,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:41,959 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-08-05 11:16:41,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:16:41,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-08-05 11:16:41,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:41,961 INFO L225 Difference]: With dead ends: 13 [2019-08-05 11:16:41,961 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:16:41,962 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-08-05 11:16:41,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:16:41,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:16:41,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:16:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:16:41,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-08-05 11:16:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:41,964 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:16:41,964 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 11:16:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:16:41,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:16:41,969 INFO L202 PluginConnector]: Adding new model GasCake01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:16:41 BoogieIcfgContainer [2019-08-05 11:16:41,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:16:41,972 INFO L168 Benchmark]: Toolchain (without parser) took 3711.14 ms. Allocated memory was 141.6 MB in the beginning and 176.2 MB in the end (delta: 34.6 MB). Free memory was 111.1 MB in the beginning and 73.3 MB in the end (delta: 37.7 MB). Peak memory consumption was 72.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:41,972 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory is still 112.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:16:41,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.82 ms. Allocated memory is still 141.6 MB. Free memory was 111.1 MB in the beginning and 109.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:41,974 INFO L168 Benchmark]: Boogie Preprocessor took 25.80 ms. Allocated memory is still 141.6 MB. Free memory was 109.0 MB in the beginning and 108.1 MB in the end (delta: 857.4 kB). Peak memory consumption was 857.4 kB. Max. memory is 7.1 GB. [2019-08-05 11:16:41,975 INFO L168 Benchmark]: RCFGBuilder took 229.87 ms. Allocated memory is still 141.6 MB. Free memory was 107.7 MB in the beginning and 98.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:41,976 INFO L168 Benchmark]: TraceAbstraction took 3412.06 ms. Allocated memory was 141.6 MB in the beginning and 176.2 MB in the end (delta: 34.6 MB). Free memory was 98.2 MB in the beginning and 73.3 MB in the end (delta: 24.9 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:41,980 INFO L335 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 0.20 ms. Allocated memory is still 141.6 MB. Free memory is still 112.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.82 ms. Allocated memory is still 141.6 MB. Free memory was 111.1 MB in the beginning and 109.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.80 ms. Allocated memory is still 141.6 MB. Free memory was 109.0 MB in the beginning and 108.1 MB in the end (delta: 857.4 kB). Peak memory consumption was 857.4 kB. Max. memory is 7.1 GB. * RCFGBuilder took 229.87 ms. Allocated memory is still 141.6 MB. Free memory was 107.7 MB in the beginning and 98.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3412.06 ms. Allocated memory was 141.6 MB in the beginning and 176.2 MB in the end (delta: 34.6 MB). Free memory was 98.2 MB in the beginning and 73.3 MB in the end (delta: 24.9 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 14]: loop invariant is valid and assertion always holds For all program executions holds that loop invariant is valid and assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 2 error locations. SAFE Result, 3.3s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 27 SDslu, 0 SDs, 0 SdLazy, 92 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=6, 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, 7 MinimizatonAttempts, 12 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 6160 SizeOfPredicates, 8 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 12/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...