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/FIREFLY_1.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 15:04:17,086 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 15:04:17,088 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 15:04:17,100 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 15:04:17,100 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 15:04:17,101 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 15:04:17,103 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 15:04:17,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 15:04:17,106 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 15:04:17,107 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 15:04:17,108 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 15:04:17,108 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 15:04:17,109 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 15:04:17,110 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 15:04:17,111 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 15:04:17,112 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 15:04:17,114 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 15:04:17,115 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 15:04:17,117 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 15:04:17,118 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 15:04:17,120 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 15:04:17,122 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 15:04:17,123 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 15:04:17,123 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 15:04:17,124 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 15:04:17,125 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 15:04:17,126 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 15:04:17,127 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 15:04:17,128 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 15:04:17,128 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 15:04:17,129 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 15:04:17,130 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 15:04:17,130 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 15:04:17,131 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 15:04:17,132 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 15:04:17,132 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 15:04:17,151 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 15:04:17,152 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 15:04:17,152 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 15:04:17,152 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 15:04:17,154 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 15:04:17,154 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 15:04:17,154 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 15:04:17,154 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 15:04:17,154 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 15:04:17,155 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 15:04:17,155 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 15:04:17,155 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 15:04:17,155 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 15:04:17,156 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 15:04:17,156 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 15:04:17,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 15:04:17,156 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 15:04:17,158 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 15:04:17,158 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 15:04:17,213 INFO ]: Repository-Root is: /tmp [2018-06-18 15:04:17,230 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 15:04:17,237 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 15:04:17,238 INFO ]: Initializing SmtParser... [2018-06-18 15:04:17,239 INFO ]: SmtParser initialized [2018-06-18 15:04:17,239 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/FIREFLY_1.smt2 [2018-06-18 15:04:17,241 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 15:04:17,340 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/FIREFLY_1.smt2 unknown [2018-06-18 15:04:18,018 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/FIREFLY_1.smt2 [2018-06-18 15:04:18,031 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 15:04:18,040 INFO ]: Walking toolchain with 4 elements. [2018-06-18 15:04:18,040 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 15:04:18,040 INFO ]: Initializing ChcToBoogie... [2018-06-18 15:04:18,040 INFO ]: ChcToBoogie initialized [2018-06-18 15:04:18,058 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 03:04:18" (1/1) ... [2018-06-18 15:04:18,161 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18 Unit [2018-06-18 15:04:18,161 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 15:04:18,171 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 15:04:18,172 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 15:04:18,172 INFO ]: Boogie Preprocessor initialized [2018-06-18 15:04:18,196 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18" (1/1) ... [2018-06-18 15:04:18,196 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18" (1/1) ... [2018-06-18 15:04:18,238 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18" (1/1) ... [2018-06-18 15:04:18,238 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18" (1/1) ... [2018-06-18 15:04:18,252 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18" (1/1) ... [2018-06-18 15:04:18,264 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18" (1/1) ... [2018-06-18 15:04:18,267 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18" (1/1) ... [2018-06-18 15:04:18,272 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 15:04:18,272 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 15:04:18,272 INFO ]: Initializing RCFGBuilder... [2018-06-18 15:04:18,272 INFO ]: RCFGBuilder initialized [2018-06-18 15:04:18,274 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18" (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 15:04:18,299 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 15:04:18,299 INFO ]: Found specification of procedure False [2018-06-18 15:04:18,299 INFO ]: Found implementation of procedure False [2018-06-18 15:04:18,299 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 15:04:18,299 INFO ]: Found specification of procedure state [2018-06-18 15:04:18,299 INFO ]: Found implementation of procedure state [2018-06-18 15:04:18,299 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 15:04:18,299 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 15:04:18,299 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 15:04:18,799 INFO ]: Using library mode [2018-06-18 15:04:18,800 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 03:04:18 BoogieIcfgContainer [2018-06-18 15:04:18,800 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 15:04:18,803 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 15:04:18,803 INFO ]: Initializing TraceAbstraction... [2018-06-18 15:04:18,815 INFO ]: TraceAbstraction initialized [2018-06-18 15:04:18,815 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 03:04:18" (1/3) ... [2018-06-18 15:04:18,816 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702737c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 03:04:18, skipping insertion in model container [2018-06-18 15:04:18,816 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:04:18" (2/3) ... [2018-06-18 15:04:18,816 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702737c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 03:04:18, skipping insertion in model container [2018-06-18 15:04:18,816 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 03:04:18" (3/3) ... [2018-06-18 15:04:18,819 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 15:04:18,843 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 15:04:18,853 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 15:04:18,918 INFO ]: Using default assertion order modulation [2018-06-18 15:04:18,927 INFO ]: Interprodecural is true [2018-06-18 15:04:18,927 INFO ]: Hoare is false [2018-06-18 15:04:18,927 INFO ]: Compute interpolants for FPandBP [2018-06-18 15:04:18,928 INFO ]: Backedges is TWOTRACK [2018-06-18 15:04:18,928 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 15:04:18,928 INFO ]: Difference is false [2018-06-18 15:04:18,928 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 15:04:18,928 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 15:04:18,952 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 15:04:18,975 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 15:04:18,975 INFO ]: Found error trace [2018-06-18 15:04:18,976 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 15:04:18,976 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 15:04:18,984 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-18 15:04:18,986 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 15:04:18,987 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 15:04:19,070 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:04:19,070 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 15:04:19,070 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:04:19,181 INFO ]: Conjunction of SSA is unsat [2018-06-18 15:04:19,192 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 15:04:19,411 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 15:04:19,414 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 15:04:19,414 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 15:04:19,416 INFO ]: Interpolant automaton has 4 states [2018-06-18 15:04:19,466 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 15:04:19,466 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 15:04:19,469 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 15:04:19,721 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 15:04:19,722 INFO ]: Finished difference Result 7 states and 8 transitions. [2018-06-18 15:04:19,722 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 15:04:19,724 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 15:04:19,724 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 15:04:19,733 INFO ]: With dead ends: 7 [2018-06-18 15:04:19,733 INFO ]: Without dead ends: 0 [2018-06-18 15:04:19,735 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 15:04:19,764 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-18 15:04:19,771 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-18 15:04:19,772 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-18 15:04:19,772 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-18 15:04:19,773 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-06-18 15:04:19,773 INFO ]: Finished accepts. word is rejected. [2018-06-18 15:04:19,774 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-18 15:04:19,774 INFO ]: Interpolant automaton has 4 states. [2018-06-18 15:04:19,774 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-18 15:04:19,774 INFO ]: Finished isEmpty. No accepting run. [2018-06-18 15:04:19,786 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 03:04:19 BoogieIcfgContainer [2018-06-18 15:04:19,786 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 15:04:19,787 INFO ]: Toolchain (without parser) took 1755.50 ms. Allocated memory was 306.2 MB in the beginning and 333.4 MB in the end (delta: 27.3 MB). Free memory was 243.3 MB in the beginning and 295.4 MB in the end (delta: -52.1 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 15:04:19,794 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 306.2 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 15:04:19,794 INFO ]: ChcToBoogie took 130.96 ms. Allocated memory is still 306.2 MB. Free memory was 242.3 MB in the beginning and 237.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-18 15:04:19,795 INFO ]: Boogie Preprocessor took 100.34 ms. Allocated memory is still 306.2 MB. Free memory was 237.3 MB in the beginning and 235.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 15:04:19,795 INFO ]: RCFGBuilder took 527.26 ms. Allocated memory is still 306.2 MB. Free memory was 235.3 MB in the beginning and 206.7 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 3.6 GB. [2018-06-18 15:04:19,795 INFO ]: TraceAbstraction took 982.89 ms. Allocated memory was 306.2 MB in the beginning and 333.4 MB in the end (delta: 27.3 MB). Free memory was 206.7 MB in the beginning and 295.4 MB in the end (delta: -88.7 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 15:04:19,805 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 306.2 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 130.96 ms. Allocated memory is still 306.2 MB. Free memory was 242.3 MB in the beginning and 237.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 100.34 ms. Allocated memory is still 306.2 MB. Free memory was 237.3 MB in the beginning and 235.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 527.26 ms. Allocated memory is still 306.2 MB. Free memory was 235.3 MB in the beginning and 206.7 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 982.89 ms. Allocated memory was 306.2 MB in the beginning and 333.4 MB in the end (delta: 27.3 MB). Free memory was 206.7 MB in the beginning and 295.4 MB in the end (delta: -88.7 MB). There was no memory consumed. 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, 0.8s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.3s 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, 0.0s 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/FIREFLY_1.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_15-04-19-821.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/FIREFLY_1.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_15-04-19-821.csv Received shutdown request...