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/num_conversion_1.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:54:47,874 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:54:47,876 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:54:47,894 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:54:47,894 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:54:47,895 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:54:47,898 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:54:47,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:54:47,904 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:54:47,911 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:54:47,912 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:54:47,912 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:54:47,915 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:54:47,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:54:47,917 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:54:47,921 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:54:47,922 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:54:47,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:54:47,928 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:54:47,931 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:54:47,934 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:54:47,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:54:47,938 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 08:54:47,939 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 08:54:47,939 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 08:54:47,941 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 08:54:47,942 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 08:54:47,944 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 08:54:47,945 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 08:54:47,946 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 08:54:47,947 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 08:54:47,947 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 08:54:47,947 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 08:54:47,948 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 08:54:47,950 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 08:54:47,951 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 08:54:47,951 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 08:54:47,967 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:54:47,967 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:54:47,969 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:54:47,969 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 08:54:47,969 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 08:54:47,971 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:54:47,971 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:54:48,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:54:48,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:54:48,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:54:48,042 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:54:48,043 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:54:48,044 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/num_conversion_1.i_3.bpl [2018-09-26 08:54:48,044 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/num_conversion_1.i_3.bpl' [2018-09-26 08:54:48,111 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:54:48,116 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:54:48,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:54:48,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:54:48,118 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:54:48,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/1) ... [2018-09-26 08:54:48,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/1) ... [2018-09-26 08:54:48,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:54:48,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:54:48,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:54:48,164 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:54:48,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/1) ... [2018-09-26 08:54:48,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/1) ... [2018-09-26 08:54:48,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/1) ... [2018-09-26 08:54:48,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/1) ... [2018-09-26 08:54:48,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/1) ... [2018-09-26 08:54:48,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/1) ... [2018-09-26 08:54:48,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/1) ... [2018-09-26 08:54:48,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:54:48,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:54:48,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:54:48,188 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:54:48,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (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 08:54:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:54:48,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:54:48,458 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:54:48,459 INFO L202 PluginConnector]: Adding new model num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:54:48 BoogieIcfgContainer [2018-09-26 08:54:48,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:54:48,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:54:48,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:54:48,465 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:54:48,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:48" (1/2) ... [2018-09-26 08:54:48,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79636ddc and model type num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:54:48, skipping insertion in model container [2018-09-26 08:54:48,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:54:48" (2/2) ... [2018-09-26 08:54:48,469 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_1.i_3.bpl [2018-09-26 08:54:48,480 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:54:48,491 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:54:48,542 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:54:48,543 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:54:48,543 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:54:48,544 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 08:54:48,544 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:54:48,544 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:54:48,544 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:54:48,544 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:54:48,545 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:54:48,561 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 08:54:48,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:54:48,570 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:54:48,571 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:54:48,572 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:54:48,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:54:48,579 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 08:54:48,606 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:54:48,887 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:54:48,887 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 08:54:48,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 08:54:48,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 08:54:48,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:54:48,900 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-26 08:54:48,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:54:48,947 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-09-26 08:54:48,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 08:54:48,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 08:54:48,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:54:48,961 INFO L225 Difference]: With dead ends: 10 [2018-09-26 08:54:48,962 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 08:54:48,965 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 08:54:48,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 08:54:49,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 08:54:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:54:49,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 08:54:49,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 08:54:49,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:54:49,009 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 08:54:49,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 08:54:49,010 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 08:54:49,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:54:49,010 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:54:49,010 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 08:54:49,011 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:54:49,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:54:49,011 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, 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 08:54:49,020 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:54:49,544 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 12 [2018-09-26 08:54:50,335 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-26 08:54:51,392 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-09-26 08:54:53,104 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-09-26 08:54:53,991 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-26 08:54:54,486 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-09-26 08:55:00,914 WARN L178 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 65 DAG size of output: 17 [2018-09-26 08:55:04,084 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-09-26 08:55:04,102 INFO L202 PluginConnector]: Adding new model num_conversion_1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:55:04 BoogieIcfgContainer [2018-09-26 08:55:04,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:55:04,104 INFO L168 Benchmark]: Toolchain (without parser) took 15992.22 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 11.0 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 2.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2018-09-26 08:55:04,105 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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 08:55:04,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.77 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 08:55:04,108 INFO L168 Benchmark]: Boogie Preprocessor took 23.52 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 08:55:04,109 INFO L168 Benchmark]: RCFGBuilder took 272.32 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 08:55:04,111 INFO L168 Benchmark]: TraceAbstraction took 15642.01 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 11.0 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -18.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:55:04,117 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 0.22 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 45.77 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 23.52 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 272.32 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 15642.01 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 11.0 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -18.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 45]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: overapproximation of shiftLeft at line 38, overapproximation of bitwiseAnd at line 39. Possible FailurePath: [L14] havoc main_#res; [L15] havoc main_~i~5, main_~bit~5, main_~x~4, main_~y~4, main_~c~4; [L16] havoc main_~x~4; [L17] havoc main_~y~4; [L18] havoc main_~c~4; [L19] main_~x~4 := 37; [L20] main_~y~4 := 0; [L21] main_~c~4 := 0; [L24] assume true; [L37] assume !!(main_~c~4 % 256 < 8); [L38] main_~i~5 := ~shiftLeft(1, main_~c~4 % 256); [L39] main_~bit~5 := ~bitwiseAnd(main_~x~4 % 256, main_~i~5 % 256); [L40] assume main_~bit~5 % 256 != 0; [L41] main_~y~4 := main_~y~4 % 256 + main_~i~5 % 256; [L42] main_~c~4 := main_~c~4 % 256 + 1; [L24] assume true; [L29] assume !(main_~c~4 % 256 < 8); [L30] __VERIFIER_assert_#in~cond := (if main_~x~4 % 256 == main_~y~4 % 256 then 1 else 0); [L31] havoc __VERIFIER_assert_~cond; [L32] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L33] assume __VERIFIER_assert_~cond == 0; [L34] assume !false; [L45] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. UNSAFE Result, 15.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 2 SDs, 0 SdLazy, 3 SolverSat, 0 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=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: 15.2s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/num_conversion_1.i_3.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-55-04-137.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/num_conversion_1.i_3.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-55-04-137.csv Received shutdown request...