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/regression/bpl/TestNondeterministicIf-unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:08:21,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:08:21,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:08:21,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:08:21,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:08:21,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:08:21,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:08:21,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:08:21,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:08:21,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:08:21,070 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:08:21,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:08:21,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:08:21,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:08:21,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:08:21,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:08:21,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:08:21,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:08:21,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:08:21,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:08:21,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:08:21,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:08:21,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:08:21,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:08:21,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:08:21,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:08:21,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:08:21,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:08:21,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:08:21,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:08:21,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:08:21,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:08:21,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:08:21,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:08:21,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:08:21,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:08:21,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:08:21,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:08:21,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:08:21,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:08:21,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:08:21,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:08:21,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:08:21,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:08:21,166 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:08:21,167 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:08:21,167 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/TestNondeterministicIf-unsafe.bpl [2019-08-05 11:08:21,168 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/TestNondeterministicIf-unsafe.bpl' [2019-08-05 11:08:21,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:08:21,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:08:21,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:08:21,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:08:21,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:08:21,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/1) ... [2019-08-05 11:08:21,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/1) ... [2019-08-05 11:08:21,239 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:08:21,239 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:08:21,240 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:08:21,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:08:21,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:08:21,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:08:21,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:08:21,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/1) ... [2019-08-05 11:08:21,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/1) ... [2019-08-05 11:08:21,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/1) ... [2019-08-05 11:08:21,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/1) ... [2019-08-05 11:08:21,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/1) ... [2019-08-05 11:08:21,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/1) ... [2019-08-05 11:08:21,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/1) ... [2019-08-05 11:08:21,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:08:21,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:08:21,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:08:21,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:08:21,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (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 11:08:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure proc [2019-08-05 11:08:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure proc [2019-08-05 11:08:21,522 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:08:21,522 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:08:21,523 INFO L202 PluginConnector]: Adding new model TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:08:21 BoogieIcfgContainer [2019-08-05 11:08:21,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:08:21,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:08:21,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:08:21,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:08:21,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:21" (1/2) ... [2019-08-05 11:08:21,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b5045 and model type TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:08:21, skipping insertion in model container [2019-08-05 11:08:21,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:08:21" (2/2) ... [2019-08-05 11:08:21,532 INFO L109 eAbstractionObserver]: Analyzing ICFG TestNondeterministicIf-unsafe.bpl [2019-08-05 11:08:21,542 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:08:21,550 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:08:21,566 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:08:21,592 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:08:21,593 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:08:21,593 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:08:21,594 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:08:21,594 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:08:21,594 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:08:21,594 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:08:21,594 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:08:21,595 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:08:21,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2019-08-05 11:08:21,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:08:21,617 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:08:21,618 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:08:21,621 INFO L418 AbstractCegarLoop]: === Iteration 1 === [procErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:08:21,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:08:21,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1276, now seen corresponding path program 1 times [2019-08-05 11:08:21,673 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:08:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 11:08:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 11:08:21,718 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 11:08:21,735 INFO L202 PluginConnector]: Adding new model TestNondeterministicIf-unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:08:21 BoogieIcfgContainer [2019-08-05 11:08:21,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:08:21,738 INFO L168 Benchmark]: Toolchain (without parser) took 535.24 ms. Allocated memory is still 134.2 MB. Free memory was 111.9 MB in the beginning and 88.2 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:21,740 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 112.9 MB in the beginning and 112.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 11:08:21,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.80 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 109.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:21,743 INFO L168 Benchmark]: Boogie Preprocessor took 21.62 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 108.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:21,744 INFO L168 Benchmark]: RCFGBuilder took 258.79 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 99.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:21,745 INFO L168 Benchmark]: TraceAbstraction took 210.14 ms. Allocated memory is still 134.2 MB. Free memory was 99.3 MB in the beginning and 88.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:21,750 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 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 112.9 MB in the beginning and 112.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.80 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 109.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.62 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 108.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 258.79 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 99.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210.14 ms. Allocated memory is still 134.2 MB. Free memory was 99.3 MB in the beginning and 88.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L15] x := 0; [L17] x := -1; VAL [x=-1] [L19] assert x == 0; VAL [x=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 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=4occurred 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...