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/veris.c_NetBSD-libc__loop.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:18:45,770 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:18:45,772 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:18:45,792 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:18:45,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:18:45,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:18:45,795 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:18:45,797 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:18:45,799 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:18:45,800 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:18:45,801 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:18:45,801 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:18:45,802 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:18:45,803 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:18:45,804 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:18:45,805 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:18:45,806 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:18:45,808 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:18:45,810 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:18:45,812 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:18:45,813 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:18:45,815 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:18:45,817 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:18:45,818 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:18:45,818 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:18:45,819 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:18:45,820 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:18:45,821 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:18:45,822 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:18:45,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:18:45,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:18:45,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:18:45,824 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:18:45,825 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:18:45,826 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:18:45,826 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:18:45,827 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 16:18:45,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:18:45,835 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:18:45,837 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:18:45,837 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:18:45,837 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:18:45,837 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:18:45,883 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:18:45,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:18:45,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:18:45,907 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:18:45,908 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:18:45,909 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl [2018-07-23 16:18:45,909 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl' [2018-07-23 16:18:45,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:18:45,994 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:18:45,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:18:45,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:18:45,995 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:18:46,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:45" (1/1) ... [2018-07-23 16:18:46,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:45" (1/1) ... [2018-07-23 16:18:46,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:45" (1/1) ... [2018-07-23 16:18:46,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:45" (1/1) ... [2018-07-23 16:18:46,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:45" (1/1) ... [2018-07-23 16:18:46,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:45" (1/1) ... [2018-07-23 16:18:46,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:45" (1/1) ... [2018-07-23 16:18:46,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:18:46,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:18:46,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:18:46,065 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:18:46,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:45" (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 16:18:46,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 16:18:46,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 16:18:46,386 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 16:18:46,387 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:18:46 BoogieIcfgContainer [2018-07-23 16:18:46,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:18:46,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:18:46,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:18:46,396 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:18:46,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:18:45" (1/2) ... [2018-07-23 16:18:46,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bfffe7 and model type veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:18:46, skipping insertion in model container [2018-07-23 16:18:46,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:18:46" (2/2) ... [2018-07-23 16:18:46,400 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc__loop.i_2.bpl [2018-07-23 16:18:46,412 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:18:46,420 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:18:46,473 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:18:46,474 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:18:46,474 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:18:46,474 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:18:46,475 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:18:46,475 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:18:46,475 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:18:46,475 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:18:46,476 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:18:46,495 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 16:18:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:18:46,510 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:18:46,512 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:18:46,512 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:18:46,518 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2018-07-23 16:18:46,525 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:18:46,884 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:18:46,885 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:18:46,889 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:18:46,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:18:46,895 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:18:46,897 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 16:18:47,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:18:47,009 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 16:18:47,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 16:18:47,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 16:18:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:18:47,023 INFO L225 Difference]: With dead ends: 10 [2018-07-23 16:18:47,023 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 16:18:47,026 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-23 16:18:47,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 16:18:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 16:18:47,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 16:18:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 16:18:47,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 16:18:47,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:18:47,064 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 16:18:47,064 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:18:47,064 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 16:18:47,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 16:18:47,065 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:18:47,065 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 16:18:47,065 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:18:47,065 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2018-07-23 16:18:47,066 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:18:48,372 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-07-23 16:18:49,804 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2018-07-23 16:19:02,774 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-07-23 16:19:08,880 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2018-07-23 16:19:15,176 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-07-23 16:19:22,644 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2018-07-23 16:19:32,008 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2018-07-23 16:19:43,255 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2018-07-23 16:19:57,278 WARN L169 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2018-07-23 16:20:14,210 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2018-07-23 16:20:34,387 WARN L169 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2018-07-23 16:20:58,661 WARN L169 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2018-07-23 16:21:27,583 WARN L169 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 113 [2018-07-23 16:22:01,611 WARN L169 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 118 [2018-07-23 16:22:41,027 WARN L169 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 122 Received shutdown request... [2018-07-23 16:23:20,478 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 16:23:20,483 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 16:23:20,483 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 04:23:20 BoogieIcfgContainer [2018-07-23 16:23:20,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 16:23:20,484 INFO L168 Benchmark]: Toolchain (without parser) took 274491.99 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -180.9 MB). Free memory was 1.5 GB in the beginning and 938.2 MB in the end (delta: 544.3 MB). Peak memory consumption was 363.4 MB. Max. memory is 7.1 GB. [2018-07-23 16:23:20,486 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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 16:23:20,486 INFO L168 Benchmark]: Boogie Preprocessor took 69.13 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 16:23:20,487 INFO L168 Benchmark]: RCFGBuilder took 323.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 16:23:20,488 INFO L168 Benchmark]: TraceAbstraction took 274094.82 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -180.9 MB). Free memory was 1.5 GB in the beginning and 938.2 MB in the end (delta: 523.2 MB). Peak memory consumption was 342.3 MB. Max. memory is 7.1 GB. [2018-07-23 16:23:20,492 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 0.21 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 69.13 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 323.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 274094.82 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -180.9 MB). Free memory was 1.5 GB in the beginning and 938.2 MB in the end (delta: 523.2 MB). Peak memory consumption was 342.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 82). Cancelled while BasicCegarLoop was analyzing trace of length 7 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 75 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. TIMEOUT Result, 274.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 1 SDslu, 4 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, 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: 0.3s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_NetBSD-libc__loop.i_2.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-23-20-504.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_NetBSD-libc__loop.i_2.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_16-23-20-504.csv Completed graceful shutdown