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/concurrent/concurrentBoogie/JoinTheForkingThread.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:12,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:12,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:12,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:12,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:12,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:12,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:12,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:12,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:12,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:12,114 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:12,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:12,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:12,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:12,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:12,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:12,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:12,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:12,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:12,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:12,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:12,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:12,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:12,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:12,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:52:12,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:52:12,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:52:12,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:52:12,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:52:12,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:52:12,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:52:12,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:52:12,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:52:12,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:52:12,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:52:12,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:52:12,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:52:12,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:52:12,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:12,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:12,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:12,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:12,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:12,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:12,220 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:12,221 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:12,221 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/concurrentBoogie/JoinTheForkingThread.bpl [2019-08-05 09:52:12,222 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/concurrentBoogie/JoinTheForkingThread.bpl' [2019-08-05 09:52:12,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:12,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:12,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:12,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:12,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:12,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:12,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:12,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:12,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:12,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:12,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:12,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:12,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:12,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (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 09:52:12,389 INFO L124 BoogieDeclarations]: Specification and implementation of procedure bar given in one single declaration [2019-08-05 09:52:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2019-08-05 09:52:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2019-08-05 09:52:12,390 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2019-08-05 09:52:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-08-05 09:52:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-08-05 09:52:12,390 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 09:52:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 09:52:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 09:52:12,392 WARN L201 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-08-05 09:52:12,743 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 09:52:12,743 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 09:52:12,745 INFO L202 PluginConnector]: Adding new model JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:12 BoogieIcfgContainer [2019-08-05 09:52:12,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:12,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:12,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:12,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:12,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/2) ... [2019-08-05 09:52:12,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfa3bcc and model type JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:12, skipping insertion in model container [2019-08-05 09:52:12,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:12" (2/2) ... [2019-08-05 09:52:12,754 INFO L109 eAbstractionObserver]: Analyzing ICFG JoinTheForkingThread.bpl [2019-08-05 09:52:12,789 WARN L317 ript$VariableManager]: TermVariabe Thread0_bar_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-08-05 09:52:12,791 WARN L317 ript$VariableManager]: TermVariabe Thread1_foo_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-08-05 09:52:12,978 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:12,988 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-08-05 09:52:13,001 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-08-05 09:52:13,026 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:13,027 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:13,027 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:13,027 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:13,027 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:13,028 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:13,028 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:13,028 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:13,028 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:13,037 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23places, 23 transitions [2019-08-05 09:52:13,048 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 28 states. [2019-08-05 09:52:13,050 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-08-05 09:52:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-08-05 09:52:13,058 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:13,059 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:13,061 INFO L418 AbstractCegarLoop]: === Iteration 1 === [barErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:13,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:13,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1183279605, now seen corresponding path program 1 times [2019-08-05 09:52:13,117 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:13,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:52:13,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:13,247 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 09:52:13,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:13,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 09:52:13,254 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:13,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:13,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:13,268 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2019-08-05 09:52:13,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:13,286 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-08-05 09:52:13,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:13,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-08-05 09:52:13,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:13,298 INFO L225 Difference]: With dead ends: 14 [2019-08-05 09:52:13,298 INFO L226 Difference]: Without dead ends: 14 [2019-08-05 09:52:13,300 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 09:52:13,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-08-05 09:52:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-08-05 09:52:13,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-08-05 09:52:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-08-05 09:52:13,332 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9 [2019-08-05 09:52:13,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:13,332 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-08-05 09:52:13,333 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-08-05 09:52:13,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-05 09:52:13,333 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:13,334 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:13,334 INFO L418 AbstractCegarLoop]: === Iteration 2 === [barErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:13,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:13,335 INFO L82 PathProgramCache]: Analyzing trace with hash -2145773905, now seen corresponding path program 1 times [2019-08-05 09:52:13,336 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 09:52:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 09:52:13,377 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 09:52:13,405 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-08-05 09:52:13,407 INFO L202 PluginConnector]: Adding new model JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:13 BasicIcfg [2019-08-05 09:52:13,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:13,412 INFO L168 Benchmark]: Toolchain (without parser) took 1150.91 ms. Allocated memory is still 134.7 MB. Free memory was 111.0 MB in the beginning and 73.5 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,414 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 134.7 MB. Free memory is still 111.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 09:52:13,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.70 ms. Allocated memory is still 134.7 MB. Free memory was 111.0 MB in the beginning and 109.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,418 INFO L168 Benchmark]: Boogie Preprocessor took 21.86 ms. Allocated memory is still 134.7 MB. Free memory was 109.4 MB in the beginning and 108.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,419 INFO L168 Benchmark]: RCFGBuilder took 422.32 ms. Allocated memory is still 134.7 MB. Free memory was 108.1 MB in the beginning and 98.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,420 INFO L168 Benchmark]: TraceAbstraction took 662.39 ms. Allocated memory is still 134.7 MB. Free memory was 98.0 MB in the beginning and 73.5 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,426 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 134.7 MB. Free memory is still 111.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.70 ms. Allocated memory is still 134.7 MB. Free memory was 111.0 MB in the beginning and 109.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.86 ms. Allocated memory is still 134.7 MB. Free memory was 109.4 MB in the beginning and 108.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.32 ms. Allocated memory is still 134.7 MB. Free memory was 108.1 MB in the beginning and 98.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 662.39 ms. Allocated memory is still 134.7 MB. Free memory was 98.0 MB in the beginning and 73.5 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 45]: assertion can be violated assertion can be violated We found a FailurePath: [L17] -1 x := 0; VAL [x=0] [L18] -1 g := 0; VAL [g=0, x=0] [L20] FORK -1 fork 1 foo(x); VAL [g=0, n=0, x=0] [L29] FORK 0 fork 2 bar(n); VAL [g=0, n=0, n=0, x=0] [L40] 1 res := 23; VAL [g=0, n=0, n=0, res=23, x=0] [L30] 0 g := g + 1; VAL [g=1, n=0, n=0, res=23, x=0] [L31] 0 res := 23; VAL [g=1, n=0, n=0, res=23, res=23, x=0] [L44] JOIN 0 join nondet assign localVar; VAL [g=1, localVar=23, n=0, n=0, nondet=1, res=23, res=23, x=0] [L45] 1 assert false; VAL [g=1, localVar=23, n=0, n=0, nondet=1, res=23, res=23, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 3 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 1 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...