java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:57:17,959 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:57:17,961 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:57:17,973 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:57:17,973 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:57:17,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:57:17,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:57:17,979 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:57:17,981 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:57:17,982 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:57:17,983 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:57:17,985 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:57:17,986 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:57:17,987 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:57:17,988 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:57:17,991 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:57:17,992 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:57:18,000 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:57:18,007 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:57:18,009 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:57:18,010 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:57:18,013 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:57:18,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:57:18,017 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:57:18,018 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:57:18,019 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:57:18,020 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:57:18,021 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:57:18,022 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:57:18,023 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:57:18,023 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:57:18,024 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 15:57:18,024 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 15:57:18,024 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 15:57:18,025 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 15:57:18,028 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 15:57:18,028 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf [2018-07-23 15:57:18,036 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:57:18,036 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:57:18,040 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:57:18,040 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 15:57:18,040 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:57:18,040 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:57:18,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:57:18,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:57:18,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:57:18,112 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:57:18,113 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:57:18,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl [2018-07-23 15:57:18,114 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl' [2018-07-23 15:57:18,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:57:18,164 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:57:18,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:57:18,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:57:18,164 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:57:18,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:57:18" (1/1) ... [2018-07-23 15:57:18,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:57:18" (1/1) ... [2018-07-23 15:57:18,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:57:18" (1/1) ... [2018-07-23 15:57:18,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:57:18" (1/1) ... [2018-07-23 15:57:18,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:57:18" (1/1) ... [2018-07-23 15:57:18,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:57:18" (1/1) ... [2018-07-23 15:57:18,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:57:18" (1/1) ... [2018-07-23 15:57:18,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:57:18,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:57:18,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:57:18,211 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:57:18,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:57:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-07-23 15:57:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:57:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:57:18,474 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:57:18,475 INFO L202 PluginConnector]: Adding new model gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:57:18 BoogieIcfgContainer [2018-07-23 15:57:18,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:57:18,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:57:18,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:57:18,480 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:57:18,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:57:18" (1/2) ... [2018-07-23 15:57:18,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d005140 and model type gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:57:18, skipping insertion in model container [2018-07-23 15:57:18,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:57:18" (2/2) ... [2018-07-23 15:57:18,484 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2.i_4.bpl [2018-07-23 15:57:18,496 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:57:18,504 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:57:18,558 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:57:18,559 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:57:18,559 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:57:18,559 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 15:57:18,559 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:57:18,560 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:57:18,560 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:57:18,560 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:57:18,560 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:57:18,581 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 15:57:18,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:57:18,592 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:57:18,593 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:57:18,594 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:57:18,600 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-23 15:57:18,608 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:57:18,912 WARN L169 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-07-23 15:57:18,977 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:57:18,977 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 15:57:18,982 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:57:18,988 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:57:18,988 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:57:18,991 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-23 15:57:19,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:57:19,030 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 15:57:19,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:57:19,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-23 15:57:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:57:19,044 INFO L225 Difference]: With dead ends: 10 [2018-07-23 15:57:19,044 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 15:57:19,047 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:57:19,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 15:57:19,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 15:57:19,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:57:19,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:57:19,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:57:19,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:57:19,086 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:57:19,086 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:57:19,086 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:57:19,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:57:19,086 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:57:19,087 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:57:19,087 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:57:19,087 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-07-23 15:57:19,088 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:57:20,273 WARN L169 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2018-07-23 15:57:22,686 WARN L169 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-07-23 15:57:41,236 WARN L169 SmtUtils]: Spent 18.16 s on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-07-23 15:57:43,746 WARN L169 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 61 [2018-07-23 15:57:45,134 WARN L169 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-07-23 15:58:41,845 WARN L169 SmtUtils]: Spent 30.24 s on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-07-23 15:59:39,730 WARN L169 SmtUtils]: Spent 17.37 s on a formula simplification that was a NOOP. DAG size: 75 [2018-07-23 16:00:31,719 WARN L169 SmtUtils]: Spent 36.89 s on a formula simplification that was a NOOP. DAG size: 109 [2018-07-23 16:01:02,870 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: what to do with the great unknown? at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:388) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.computePdr(Pdr.java:274) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.(Pdr.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructPdr(TraceCheckConstructor.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:130) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:406) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:425) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 16:01:02,874 INFO L168 Benchmark]: Toolchain (without parser) took 224710.85 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -928.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-07-23 16:01:02,875 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:01:02,876 INFO L168 Benchmark]: Boogie Preprocessor took 46.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:01:02,877 INFO L168 Benchmark]: RCFGBuilder took 264.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 16:01:02,878 INFO L168 Benchmark]: TraceAbstraction took 224396.13 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -949.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-23 16:01:02,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 264.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224396.13 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -949.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: what to do with the great unknown? de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: what to do with the great unknown?: de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:388) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gcd_2.i_4.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-01-02-898.csv Received shutdown request...