java -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_2_e2_3183.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 14:26:14,853 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 14:26:14,855 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 14:26:14,867 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 14:26:14,868 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 14:26:14,869 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 14:26:14,869 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 14:26:14,873 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 14:26:14,874 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 14:26:14,875 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 14:26:14,876 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 14:26:14,876 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 14:26:14,877 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 14:26:14,878 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 14:26:14,878 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 14:26:14,879 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 14:26:14,881 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 14:26:14,885 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 14:26:14,898 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 14:26:14,899 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 14:26:14,900 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 14:26:14,902 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 14:26:14,903 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 14:26:14,903 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 14:26:14,904 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 14:26:14,905 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 14:26:14,905 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 14:26:14,906 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 14:26:14,907 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 14:26:14,907 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 14:26:14,908 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 14:26:14,908 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 14:26:14,908 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 14:26:14,909 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 14:26:14,910 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 14:26:14,910 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 14:26:14,923 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 14:26:14,923 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 14:26:14,923 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 14:26:14,923 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 14:26:14,925 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 14:26:14,925 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 14:26:14,925 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 14:26:14,925 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 14:26:14,925 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 14:26:14,926 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 14:26:14,926 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 14:26:14,926 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 14:26:14,926 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 14:26:14,926 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 14:26:14,926 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 14:26:14,927 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 14:26:14,927 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 14:26:14,928 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 14:26:14,929 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 14:26:14,978 INFO ]: Repository-Root is: /tmp [2018-06-18 14:26:14,995 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 14:26:14,999 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 14:26:15,000 INFO ]: Initializing SmtParser... [2018-06-18 14:26:15,001 INFO ]: SmtParser initialized [2018-06-18 14:26:15,001 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_2_e2_3183.smt2 [2018-06-18 14:26:15,003 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/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 [2018-06-18 14:26:15,095 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_2_e2_3183.smt2 unknown [2018-06-18 14:26:15,704 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_2_e2_3183.smt2 [2018-06-18 14:26:15,708 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 14:26:15,721 INFO ]: Walking toolchain with 4 elements. [2018-06-18 14:26:15,722 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 14:26:15,722 INFO ]: Initializing ChcToBoogie... [2018-06-18 14:26:15,722 INFO ]: ChcToBoogie initialized [2018-06-18 14:26:15,742 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 02:26:15" (1/1) ... [2018-06-18 14:26:15,982 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15 Unit [2018-06-18 14:26:15,982 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 14:26:15,982 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 14:26:15,983 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 14:26:15,983 INFO ]: Boogie Preprocessor initialized [2018-06-18 14:26:16,005 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15" (1/1) ... [2018-06-18 14:26:16,005 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15" (1/1) ... [2018-06-18 14:26:16,035 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15" (1/1) ... [2018-06-18 14:26:16,035 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15" (1/1) ... [2018-06-18 14:26:16,049 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15" (1/1) ... [2018-06-18 14:26:16,050 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15" (1/1) ... [2018-06-18 14:26:16,055 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15" (1/1) ... [2018-06-18 14:26:16,072 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 14:26:16,072 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 14:26:16,072 INFO ]: Initializing RCFGBuilder... [2018-06-18 14:26:16,072 INFO ]: RCFGBuilder initialized [2018-06-18 14:26:16,073 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-18 14:26:16,088 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 14:26:16,088 INFO ]: Found specification of procedure False [2018-06-18 14:26:16,088 INFO ]: Found implementation of procedure False [2018-06-18 14:26:16,088 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 14:26:16,088 INFO ]: Found specification of procedure state [2018-06-18 14:26:16,088 INFO ]: Found implementation of procedure state [2018-06-18 14:26:16,088 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 14:26:16,088 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 14:26:16,088 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 14:26:16,612 INFO ]: Using library mode [2018-06-18 14:26:16,613 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 02:26:16 BoogieIcfgContainer [2018-06-18 14:26:16,613 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 14:26:16,614 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 14:26:16,614 INFO ]: Initializing TraceAbstraction... [2018-06-18 14:26:16,619 INFO ]: TraceAbstraction initialized [2018-06-18 14:26:16,620 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 02:26:15" (1/3) ... [2018-06-18 14:26:16,620 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1892f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 02:26:16, skipping insertion in model container [2018-06-18 14:26:16,621 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:26:15" (2/3) ... [2018-06-18 14:26:16,621 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1892f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 02:26:16, skipping insertion in model container [2018-06-18 14:26:16,621 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 02:26:16" (3/3) ... [2018-06-18 14:26:16,623 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 14:26:16,634 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 14:26:16,644 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 14:26:16,695 INFO ]: Using default assertion order modulation [2018-06-18 14:26:16,696 INFO ]: Interprodecural is true [2018-06-18 14:26:16,696 INFO ]: Hoare is false [2018-06-18 14:26:16,696 INFO ]: Compute interpolants for FPandBP [2018-06-18 14:26:16,696 INFO ]: Backedges is TWOTRACK [2018-06-18 14:26:16,696 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 14:26:16,696 INFO ]: Difference is false [2018-06-18 14:26:16,696 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 14:26:16,696 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 14:26:16,714 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 14:26:16,731 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 14:26:16,731 INFO ]: Found error trace [2018-06-18 14:26:16,732 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 14:26:16,732 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 14:26:16,739 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-18 14:26:16,742 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 14:26:16,742 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 14:26:16,795 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:26:16,795 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 14:26:16,795 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:26:16,949 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:26:16,958 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 14:26:17,195 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 14:26:17,197 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 14:26:17,198 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 14:26:17,200 INFO ]: Interpolant automaton has 4 states [2018-06-18 14:26:17,217 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 14:26:17,217 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 14:26:17,221 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 14:26:17,389 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 14:26:17,389 INFO ]: Finished difference Result 7 states and 8 transitions. [2018-06-18 14:26:17,390 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 14:26:17,392 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 14:26:17,392 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 14:26:17,401 INFO ]: With dead ends: 7 [2018-06-18 14:26:17,401 INFO ]: Without dead ends: 0 [2018-06-18 14:26:17,406 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 14:26:17,426 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-18 14:26:17,432 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-18 14:26:17,434 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-18 14:26:17,434 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-18 14:26:17,435 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-06-18 14:26:17,435 INFO ]: Finished accepts. word is rejected. [2018-06-18 14:26:17,435 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-18 14:26:17,435 INFO ]: Interpolant automaton has 4 states. [2018-06-18 14:26:17,435 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-18 14:26:17,435 INFO ]: Finished isEmpty. No accepting run. [2018-06-18 14:26:17,443 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 02:26:17 BoogieIcfgContainer [2018-06-18 14:26:17,443 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 14:26:17,444 INFO ]: Toolchain (without parser) took 1734.98 ms. Allocated memory was 305.7 MB in the beginning and 324.5 MB in the end (delta: 18.9 MB). Free memory was 229.1 MB in the beginning and 256.6 MB in the end (delta: -27.5 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 14:26:17,446 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 14:26:17,446 INFO ]: ChcToBoogie took 260.53 ms. Allocated memory is still 305.7 MB. Free memory was 229.1 MB in the beginning and 222.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-18 14:26:17,447 INFO ]: Boogie Preprocessor took 89.25 ms. Allocated memory is still 305.7 MB. Free memory was 222.1 MB in the beginning and 220.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 14:26:17,447 INFO ]: RCFGBuilder took 540.78 ms. Allocated memory was 305.7 MB in the beginning and 324.5 MB in the end (delta: 18.9 MB). Free memory was 220.1 MB in the beginning and 283.4 MB in the end (delta: -63.3 MB). Peak memory consumption was 41.2 MB. Max. memory is 3.6 GB. [2018-06-18 14:26:17,448 INFO ]: TraceAbstraction took 828.40 ms. Allocated memory is still 324.5 MB. Free memory was 283.4 MB in the beginning and 256.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 3.6 GB. [2018-06-18 14:26:17,459 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 260.53 ms. Allocated memory is still 305.7 MB. Free memory was 229.1 MB in the beginning and 222.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 89.25 ms. Allocated memory is still 305.7 MB. Free memory was 222.1 MB in the beginning and 220.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 540.78 ms. Allocated memory was 305.7 MB in the beginning and 324.5 MB in the end (delta: 18.9 MB). Free memory was 220.1 MB in the beginning and 283.4 MB in the end (delta: -63.3 MB). Peak memory consumption was 41.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 828.40 ms. Allocated memory is still 324.5 MB. Free memory was 283.4 MB in the beginning and 256.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 7 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/DRAGON_2_e2_3183.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_14-26-17-481.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/DRAGON_2_e2_3183.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_14-26-17-481.csv Received shutdown request...