java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:47:27,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:47:27,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:47:27,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:47:27,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:47:27,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:47:27,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:47:27,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:47:28,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:47:28,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:47:28,005 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:47:28,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:47:28,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:47:28,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:47:28,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:47:28,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:47:28,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:47:28,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:47:28,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:47:28,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:47:28,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:47:28,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:47:28,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:47:28,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:47:28,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:47:28,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:47:28,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:47:28,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:47:28,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:47:28,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:47:28,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:47:28,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:47:28,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:47:28,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:47:28,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:47:28,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:47:28,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:47:28,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:47:28,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:47:28,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:47:28,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:47:28,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:47:28,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:47:28,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:47:28,127 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:47:28,127 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:47:28,128 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl [2019-08-05 10:47:28,129 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl' [2019-08-05 10:47:28,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:47:28,186 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:47:28,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:47:28,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:47:28,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:47:28,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/1) ... [2019-08-05 10:47:28,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/1) ... [2019-08-05 10:47:28,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:47:28,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:47:28,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:47:28,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:47:28,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/1) ... [2019-08-05 10:47:28,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/1) ... [2019-08-05 10:47:28,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/1) ... [2019-08-05 10:47:28,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/1) ... [2019-08-05 10:47:28,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/1) ... [2019-08-05 10:47:28,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/1) ... [2019-08-05 10:47:28,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/1) ... [2019-08-05 10:47:28,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:47:28,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:47:28,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:47:28,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:47:28,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (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 [2019-08-05 10:47:28,321 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 10:47:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:47:28,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:47:28,581 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:47:28,582 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:47:28,583 INFO L202 PluginConnector]: Adding new model gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:47:28 BoogieIcfgContainer [2019-08-05 10:47:28,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:47:28,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:47:28,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:47:28,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:47:28,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:47:28" (1/2) ... [2019-08-05 10:47:28,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8d44de and model type gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:47:28, skipping insertion in model container [2019-08-05 10:47:28,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:47:28" (2/2) ... [2019-08-05 10:47:28,592 INFO L109 eAbstractionObserver]: Analyzing ICFG gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl [2019-08-05 10:47:28,604 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:47:28,613 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:47:28,629 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:47:28,653 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:47:28,654 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:47:28,654 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:47:28,654 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:47:28,654 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:47:28,654 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:47:28,654 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:47:28,655 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:47:28,655 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:47:28,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-05 10:47:28,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:47:28,676 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:47:28,677 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:47:28,679 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:47:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:47:28,685 INFO L82 PathProgramCache]: Analyzing trace with hash 30017, now seen corresponding path program 1 times [2019-08-05 10:47:28,725 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:47:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:47:28,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 10:47:28,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:47:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:47:28,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:47:28,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:47:28,829 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:47:28,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:47:28,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:47:28,848 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-08-05 10:47:28,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:47:28,900 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-08-05 10:47:28,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:47:28,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 10:47:28,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:47:28,922 INFO L225 Difference]: With dead ends: 5 [2019-08-05 10:47:28,922 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 10:47:28,926 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:47:28,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 10:47:28,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 10:47:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 10:47:28,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-05 10:47:28,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-05 10:47:28,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:47:28,971 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-05 10:47:28,971 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:47:28,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-05 10:47:28,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:47:28,972 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:47:28,972 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:47:28,972 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:47:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:47:28,973 INFO L82 PathProgramCache]: Analyzing trace with hash 928552, now seen corresponding path program 1 times [2019-08-05 10:47:28,974 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:47:29,004 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-08-05 10:47:29,006 INFO L285 seRefinementStrategy]: Strategy FixedRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-08-05 10:47:29,007 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 10:47:29,047 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-08-05 10:47:29,048 INFO L202 PluginConnector]: Adding new model gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:47:29 BoogieIcfgContainer [2019-08-05 10:47:29,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:47:29,051 INFO L168 Benchmark]: Toolchain (without parser) took 863.55 ms. Allocated memory is still 141.6 MB. Free memory was 111.0 MB in the beginning and 77.1 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2019-08-05 10:47:29,052 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 112.3 MB in the beginning and 112.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 10:47:29,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.59 ms. Allocated memory is still 141.6 MB. Free memory was 110.8 MB in the beginning and 109.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-08-05 10:47:29,055 INFO L168 Benchmark]: Boogie Preprocessor took 25.54 ms. Allocated memory is still 141.6 MB. Free memory was 109.2 MB in the beginning and 108.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:47:29,056 INFO L168 Benchmark]: RCFGBuilder took 334.96 ms. Allocated memory is still 141.6 MB. Free memory was 108.0 MB in the beginning and 97.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:47:29,057 INFO L168 Benchmark]: TraceAbstraction took 463.01 ms. Allocated memory is still 141.6 MB. Free memory was 97.6 MB in the beginning and 77.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-08-05 10:47:29,064 INFO L335 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 141.6 MB. Free memory was 112.3 MB in the beginning and 112.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.59 ms. Allocated memory is still 141.6 MB. Free memory was 110.8 MB in the beginning and 109.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.54 ms. Allocated memory is still 141.6 MB. Free memory was 109.2 MB in the beginning and 108.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 334.96 ms. Allocated memory is still 141.6 MB. Free memory was 108.0 MB in the beginning and 97.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 463.01 ms. Allocated memory is still 141.6 MB. Free memory was 97.6 MB in the beginning and 77.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L21] havoc main_#res; [L22] havoc main_#t~nondet0, main_#t~nondet1, main_#t~ret2, main_~y~7, main_~x~7, main_~g~7; [L23] assume 0 <= main_#t~nondet0 + 128 && main_#t~nondet0 <= 127; [L24] main_~x~7 := main_#t~nondet0; [L25] havoc main_#t~nondet0; [L26] assume main_#t~nondet1 <= 127 && 0 <= main_#t~nondet1 + 128; [L27] main_~y~7 := main_#t~nondet1; [L28] havoc main_#t~nondet1; [L29] havoc main_~g~7; [L30] gcd_test_#in~b, gcd_test_#in~a := main_~y~7, main_~x~7; [L31] havoc gcd_test_#res; [L32] havoc gcd_test_~a, gcd_test_~b, gcd_test_~t~5; [L33] gcd_test_~a := gcd_test_#in~a; [L34] gcd_test_~b := gcd_test_#in~b; [L35] havoc gcd_test_~t~5; [L36] assume gcd_test_~a < 0; [L37] assume -256 <= 255 * gcd_test_~a && 255 * gcd_test_~a < 0; [L38] gcd_test_~a := 255 * gcd_test_~a + 256; [L39] assume !(gcd_test_~b < 0); [L46] assume !(gcd_test_~b == 0); [L47] gcd_test_~t~5 := gcd_test_~b; [L48] assume ((gcd_test_~a % gcd_test_~b % 256 <= 127 && 256 + 256 <= gcd_test_~b + gcd_test_~a % gcd_test_~b) && 256 + 256 <= gcd_test_~a % gcd_test_~b) && !(gcd_test_~a < 0); [L49] gcd_test_~b := gcd_test_~a % gcd_test_~b % 256; [L50] gcd_test_~a := gcd_test_~t~5; [L53] assume gcd_test_~b == 0; [L54] gcd_test_#res := gcd_test_~a; [L55] main_#t~ret2 := gcd_test_#res; [L56] assume 0 <= main_#t~ret2 + 128 && main_#t~ret2 <= 127; [L57] main_~g~7 := main_#t~ret2; [L58] havoc main_#t~ret2; [L59] assume 0 < main_~y~7; [L60] assume !(main_~g~7 <= main_~y~7); [L61] __VERIFIER_assert_#in~cond := 0; [L62] havoc __VERIFIER_assert_~cond; [L63] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L64] assume __VERIFIER_assert_~cond == 0; [L67] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. UNKNOWN Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 3 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 Received shutdown request...