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/regression/Fischer2unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:13,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:13,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:13,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:13,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:13,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:13,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:13,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:13,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:13,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:13,186 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:13,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:13,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:13,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:13,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:13,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:13,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:13,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:13,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:13,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:13,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:13,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:13,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:13,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:13,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:52:13,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:52:13,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:52:13,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:52:13,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:52:13,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:52:13,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:52:13,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:52:13,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:52:13,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:52:13,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:52:13,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:52:13,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:52:13,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:52:13,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:13,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:13,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:13,278 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:13,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:13,301 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:13,302 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:13,304 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:13,305 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/regression/Fischer2unsafe.bpl [2019-08-05 09:52:13,305 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/regression/Fischer2unsafe.bpl' [2019-08-05 09:52:13,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:13,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:13,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:13,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:13,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:13,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/1) ... [2019-08-05 09:52:13,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/1) ... [2019-08-05 09:52:13,385 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 09:52:13,385 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 09:52:13,385 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 09:52:13,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:13,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:13,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:13,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:13,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/1) ... [2019-08-05 09:52:13,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/1) ... [2019-08-05 09:52:13,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/1) ... [2019-08-05 09:52:13,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/1) ... [2019-08-05 09:52:13,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/1) ... [2019-08-05 09:52:13,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/1) ... [2019-08-05 09:52:13,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/1) ... [2019-08-05 09:52:13,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:13,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:13,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:13,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:13,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (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 09:52:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure Thread2 [2019-08-05 09:52:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread2 [2019-08-05 09:52:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure Clock [2019-08-05 09:52:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure Clock [2019-08-05 09:52:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure Thread1 [2019-08-05 09:52:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread1 [2019-08-05 09:52:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure ~init [2019-08-05 09:52:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ~init [2019-08-05 09:52:13,972 INFO L275 CfgBuilder]: Using library mode [2019-08-05 09:52:13,973 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-05 09:52:13,974 INFO L202 PluginConnector]: Adding new model Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:13 BoogieIcfgContainer [2019-08-05 09:52:13,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:13,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:13,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:13,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:13,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:13" (1/2) ... [2019-08-05 09:52:13,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bef9689 and model type Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:13, skipping insertion in model container [2019-08-05 09:52:13,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:13" (2/2) ... [2019-08-05 09:52:13,987 INFO L109 eAbstractionObserver]: Analyzing ICFG Fischer2unsafe.bpl [2019-08-05 09:52:13,996 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:14,004 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-08-05 09:52:14,017 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-08-05 09:52:14,042 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:14,043 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:14,043 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:14,043 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:14,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:14,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:14,044 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:14,044 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:14,044 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:14,058 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-08-05 09:52:14,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:52:14,067 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:14,068 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:52:14,071 INFO L418 AbstractCegarLoop]: === Iteration 1 === [Thread2Err0ASSERT_VIOLATIONASSERT, Thread1Err0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:14,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:14,077 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-08-05 09:52:14,132 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 09:52:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 09:52:14,189 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 09:52:14,209 INFO L202 PluginConnector]: Adding new model Fischer2unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:14 BoogieIcfgContainer [2019-08-05 09:52:14,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:14,213 INFO L168 Benchmark]: Toolchain (without parser) took 863.25 ms. Allocated memory is still 141.0 MB. Free memory was 108.2 MB in the beginning and 80.4 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:14,214 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory is still 109.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 09:52:14,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.56 ms. Allocated memory is still 141.0 MB. Free memory was 107.8 MB in the beginning and 106.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:14,216 INFO L168 Benchmark]: Boogie Preprocessor took 29.11 ms. Allocated memory is still 141.0 MB. Free memory was 106.1 MB in the beginning and 104.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:14,218 INFO L168 Benchmark]: RCFGBuilder took 556.88 ms. Allocated memory is still 141.0 MB. Free memory was 104.8 MB in the beginning and 92.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:14,219 INFO L168 Benchmark]: TraceAbstraction took 234.00 ms. Allocated memory is still 141.0 MB. Free memory was 91.7 MB in the beginning and 80.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:14,224 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 0.21 ms. Allocated memory is still 141.0 MB. Free memory is still 109.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.56 ms. Allocated memory is still 141.0 MB. Free memory was 107.8 MB in the beginning and 106.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.11 ms. Allocated memory is still 141.0 MB. Free memory was 106.1 MB in the beginning and 104.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 556.88 ms. Allocated memory is still 141.0 MB. Free memory was 104.8 MB in the beginning and 92.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234.00 ms. Allocated memory is still 141.0 MB. Free memory was 91.7 MB in the beginning and 80.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 84]: assertion can be violated assertion can be violated We found a FailurePath: [L75] COND FALSE !(lock != 2) VAL [clk=0, deadline=0, delay=0, lock=2, wait=0] [L84] assert critical == 0; VAL [clk=0, critical=1, deadline=0, delay=0, lock=2, wait=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 12 locations, 2 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...