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/string_concat-noarr.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:14:49,131 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:14:49,133 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:14:49,154 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:14:49,154 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:14:49,155 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:14:49,157 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:14:49,159 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:14:49,163 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:14:49,165 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:14:49,167 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:14:49,167 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:14:49,168 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:14:49,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:14:49,172 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:14:49,173 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:14:49,181 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:14:49,189 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:14:49,191 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:14:49,194 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:14:49,196 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:14:49,199 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:14:49,205 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:14:49,205 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:14:49,205 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:14:49,206 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:14:49,210 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:14:49,211 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:14:49,212 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:14:49,213 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:14:49,213 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:14:49,216 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:14:49,216 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:14:49,216 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:14:49,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:14:49,220 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:14:49,220 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 16:14:49,243 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:14:49,243 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:14:49,245 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:14:49,246 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:14:49,246 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:14:49,246 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:14:49,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:14:49,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:14:49,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:14:49,345 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:14:49,345 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:14:49,346 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/string_concat-noarr.i_3.bpl [2018-07-23 16:14:49,346 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/string_concat-noarr.i_3.bpl' [2018-07-23 16:14:49,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:14:49,422 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:14:49,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:14:49,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:14:49,423 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:14:49,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:14:49" (1/1) ... [2018-07-23 16:14:49,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:14:49" (1/1) ... [2018-07-23 16:14:49,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:14:49" (1/1) ... [2018-07-23 16:14:49,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:14:49" (1/1) ... [2018-07-23 16:14:49,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:14:49" (1/1) ... [2018-07-23 16:14:49,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:14:49" (1/1) ... [2018-07-23 16:14:49,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:14:49" (1/1) ... [2018-07-23 16:14:49,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:14:49,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:14:49,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:14:49,466 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:14:49,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:14:49" (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 16:14:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 16:14:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 16:14:49,729 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 16:14:49,729 INFO L202 PluginConnector]: Adding new model string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:14:49 BoogieIcfgContainer [2018-07-23 16:14:49,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:14:49,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:14:49,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:14:49,734 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:14:49,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:14:49" (1/2) ... [2018-07-23 16:14:49,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0315c7 and model type string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:14:49, skipping insertion in model container [2018-07-23 16:14:49,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:14:49" (2/2) ... [2018-07-23 16:14:49,738 INFO L112 eAbstractionObserver]: Analyzing ICFG string_concat-noarr.i_3.bpl [2018-07-23 16:14:49,748 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:14:49,756 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:14:49,808 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:14:49,809 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:14:49,809 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:14:49,810 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:14:49,810 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:14:49,810 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:14:49,810 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:14:49,810 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:14:49,811 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:14:49,831 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 16:14:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:14:49,844 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:14:49,845 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:14:49,846 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:14:49,852 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2018-07-23 16:14:49,860 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:14:50,076 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-23 16:14:50,370 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:14:50,370 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:14:50,376 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:14:50,383 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:14:50,384 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:14:50,387 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 16:14:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:14:50,455 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 16:14:50,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 16:14:50,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 16:14:50,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:14:50,468 INFO L225 Difference]: With dead ends: 10 [2018-07-23 16:14:50,469 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 16:14:50,472 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:14:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 16:14:50,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 16:14:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 16:14:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 16:14:50,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 16:14:50,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:14:50,507 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 16:14:50,507 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:14:50,507 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 16:14:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 16:14:50,507 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:14:50,507 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 16:14:50,508 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:14:50,508 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2018-07-23 16:14:50,508 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:14:51,331 WARN L169 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2018-07-23 16:14:51,634 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2018-07-23 16:14:52,693 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2018-07-23 16:14:54,127 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2018-07-23 16:14:56,608 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-07-23 16:15:01,479 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-07-23 16:15:10,815 WARN L169 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-07-23 16:15:15,756 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2018-07-23 16:15:21,780 WARN L169 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2018-07-23 16:15:29,403 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2018-07-23 16:15:38,687 WARN L169 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2018-07-23 16:15:49,914 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2018-07-23 16:16:03,516 WARN L169 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2018-07-23 16:16:19,721 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2018-07-23 16:16:38,888 WARN L169 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2018-07-23 16:17:01,506 WARN L169 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2018-07-23 16:17:28,078 WARN L169 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2018-07-23 16:17:58,660 WARN L169 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-07-23 16:18:34,011 WARN L169 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2018-07-23 16:19:14,756 WARN L169 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 Received shutdown request... [2018-07-23 16:19:22,351 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 16:19:22,355 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 16:19:22,355 INFO L202 PluginConnector]: Adding new model string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 04:19:22 BoogieIcfgContainer [2018-07-23 16:19:22,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 16:19:22,356 INFO L168 Benchmark]: Toolchain (without parser) took 272935.72 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -189.8 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 256.1 MB). Peak memory consumption was 66.3 MB. Max. memory is 7.1 GB. [2018-07-23 16:19:22,357 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 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 16:19:22,358 INFO L168 Benchmark]: Boogie Preprocessor took 43.12 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 16:19:22,359 INFO L168 Benchmark]: RCFGBuilder took 263.79 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 16:19:22,360 INFO L168 Benchmark]: TraceAbstraction took 272624.76 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -189.8 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 234.9 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-07-23 16:19:22,364 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 0.23 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 43.12 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 263.79 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 272624.76 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -189.8 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 234.9 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 53). Cancelled while BasicCegarLoop was analyzing trace of length 7 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 81 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. TIMEOUT Result, 272.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 1 SDslu, 1 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s 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: 0.4s 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/string_concat-noarr.i_3.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-19-22-375.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/string_concat-noarr.i_3.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_16-19-22-375.csv Completed graceful shutdown