java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:53:39,912 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:53:39,915 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:53:39,927 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:53:39,928 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:53:39,929 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:53:39,930 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:53:39,932 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:53:39,933 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:53:39,934 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:53:39,935 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:53:39,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:53:39,936 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:53:39,937 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:53:39,939 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:53:39,939 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:53:39,940 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:53:39,942 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:53:39,945 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:53:39,947 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:53:39,948 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:53:39,949 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:53:39,952 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 08:53:39,952 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 08:53:39,952 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 08:53:39,953 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 08:53:39,954 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 08:53:39,955 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 08:53:39,956 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 08:53:39,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 08:53:39,958 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 08:53:39,958 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 08:53:39,959 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 08:53:39,959 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 08:53:39,960 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 08:53:39,961 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 08:53:39,961 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-09-26 08:53:39,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:53:39,969 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:53:39,971 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:53:39,971 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 08:53:39,971 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 08:53:39,971 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:53:39,972 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:53:40,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:53:40,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:53:40,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:53:40,033 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:53:40,034 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:53:40,034 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl [2018-09-26 08:53:40,035 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl' [2018-09-26 08:53:40,085 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:53:40,090 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:53:40,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:53:40,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:53:40,092 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:53:40,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/1) ... [2018-09-26 08:53:40,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/1) ... [2018-09-26 08:53:40,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:53:40,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:53:40,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:53:40,132 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:53:40,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/1) ... [2018-09-26 08:53:40,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/1) ... [2018-09-26 08:53:40,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/1) ... [2018-09-26 08:53:40,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/1) ... [2018-09-26 08:53:40,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/1) ... [2018-09-26 08:53:40,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/1) ... [2018-09-26 08:53:40,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/1) ... [2018-09-26 08:53:40,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:53:40,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:53:40,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:53:40,155 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:53:40,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (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 [2018-09-26 08:53:40,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:53:40,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:53:40,530 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:53:40,531 INFO L202 PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:53:40 BoogieIcfgContainer [2018-09-26 08:53:40,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:53:40,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:53:40,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:53:40,540 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:53:40,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:53:40" (1/2) ... [2018-09-26 08:53:40,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5246d035 and model type nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:53:40, skipping insertion in model container [2018-09-26 08:53:40,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:53:40" (2/2) ... [2018-09-26 08:53:40,545 INFO L112 eAbstractionObserver]: Analyzing ICFG nested.i_4.bpl [2018-09-26 08:53:40,557 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:53:40,568 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:53:40,618 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:53:40,619 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:53:40,619 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:53:40,619 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 08:53:40,620 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:53:40,620 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:53:40,620 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:53:40,620 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:53:40,620 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:53:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-26 08:53:40,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:53:40,644 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:53:40,645 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:53:40,646 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:53:40,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:53:40,653 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:53:40,676 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:53:40,968 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:53:40,968 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 08:53:40,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 08:53:40,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 08:53:40,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:53:40,981 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-09-26 08:53:41,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:53:41,041 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2018-09-26 08:53:41,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 08:53:41,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 08:53:41,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:53:41,055 INFO L225 Difference]: With dead ends: 15 [2018-09-26 08:53:41,055 INFO L226 Difference]: Without dead ends: 9 [2018-09-26 08:53:41,059 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:53:41,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-09-26 08:53:41,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-09-26 08:53:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 08:53:41,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-09-26 08:53:41,101 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2018-09-26 08:53:41,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:53:41,101 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-09-26 08:53:41,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 08:53:41,101 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-09-26 08:53:41,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 08:53:41,102 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:53:41,102 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-09-26 08:53:41,102 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:53:41,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:53:41,103 INFO L82 PathProgramCache]: Analyzing trace with hash 209100445, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:53:41,112 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:53:41,768 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2018-09-26 08:53:42,279 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-26 08:53:53,168 WARN L178 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 Received shutdown request... [2018-09-26 08:58:05,723 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:58:05,724 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 08:58:05,730 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 08:58:05,730 INFO L202 PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:58:05 BoogieIcfgContainer [2018-09-26 08:58:05,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:58:05,731 INFO L168 Benchmark]: Toolchain (without parser) took 265645.17 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -197.7 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 369.9 MB). Peak memory consumption was 172.2 MB. Max. memory is 7.1 GB. [2018-09-26 08:58:05,733 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 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. [2018-09-26 08:58:05,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.94 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. [2018-09-26 08:58:05,734 INFO L168 Benchmark]: Boogie Preprocessor took 22.15 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. [2018-09-26 08:58:05,735 INFO L168 Benchmark]: RCFGBuilder took 376.77 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. [2018-09-26 08:58:05,736 INFO L168 Benchmark]: TraceAbstraction took 265197.70 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -197.7 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 348.7 MB). Peak memory consumption was 151.1 MB. Max. memory is 7.1 GB. [2018-09-26 08:58:05,741 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 0.14 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 Procedure Inliner took 39.94 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 22.15 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 376.77 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 265197.70 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -197.7 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 348.7 MB). Peak memory consumption was 151.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 50). Cancelled while BasicCegarLoop was analyzing trace of length 9 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 57 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. TIMEOUT Result, 265.1s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 2 SDslu, 2 SDs, 0 SdLazy, 5 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: 0.2s 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/nested.i_4.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-58-05-754.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested.i_4.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-58-05-754.csv Completed graceful shutdown