java -Xss4m -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/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_7_e2_2872_e2_5844.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 14:41:20,156 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 14:41:20,158 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 14:41:20,171 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 14:41:20,171 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 14:41:20,172 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 14:41:20,175 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 14:41:20,178 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 14:41:20,179 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 14:41:20,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 14:41:20,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 14:41:20,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 14:41:20,183 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 14:41:20,186 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 14:41:20,187 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 14:41:20,187 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 14:41:20,189 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 14:41:20,198 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 14:41:20,199 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 14:41:20,200 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 14:41:20,201 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 14:41:20,207 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 14:41:20,207 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 14:41:20,207 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 14:41:20,208 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 14:41:20,209 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 14:41:20,211 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 14:41:20,212 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 14:41:20,213 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 14:41:20,213 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 14:41:20,214 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 14:41:20,218 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 14:41:20,218 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 14:41:20,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 14:41:20,220 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 14:41:20,220 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 14:41:20,244 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 14:41:20,244 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 14:41:20,244 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 14:41:20,244 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 14:41:20,245 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 14:41:20,246 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 14:41:20,246 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 14:41:20,246 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 14:41:20,246 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 14:41:20,246 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 14:41:20,246 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 14:41:20,247 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 14:41:20,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 14:41:20,248 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 14:41:20,248 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 14:41:20,248 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 14:41:20,248 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 14:41:20,248 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 14:41:20,249 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 14:41:20,249 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 14:41:20,249 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 14:41:20,250 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 14:41:20,250 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 14:41:20,296 INFO ]: Repository-Root is: /tmp [2018-06-25 14:41:20,312 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 14:41:20,318 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 14:41:20,320 INFO ]: Initializing SmtParser... [2018-06-25 14:41:20,320 INFO ]: SmtParser initialized [2018-06-25 14:41:20,321 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_7_e2_2872_e2_5844.smt2 [2018-06-25 14:41:20,322 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 [2018-06-25 14:41:20,403 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_7_e2_2872_e2_5844.smt2 unknown [2018-06-25 14:41:21,020 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_7_e2_2872_e2_5844.smt2 [2018-06-25 14:41:21,025 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 14:41:21,031 INFO ]: Walking toolchain with 4 elements. [2018-06-25 14:41:21,032 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 14:41:21,032 INFO ]: Initializing ChcToBoogie... [2018-06-25 14:41:21,032 INFO ]: ChcToBoogie initialized [2018-06-25 14:41:21,035 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 02:41:21" (1/1) ... [2018-06-25 14:41:21,168 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21 Unit [2018-06-25 14:41:21,168 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 14:41:21,169 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 14:41:21,169 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 14:41:21,169 INFO ]: Boogie Preprocessor initialized [2018-06-25 14:41:21,189 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21" (1/1) ... [2018-06-25 14:41:21,189 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21" (1/1) ... [2018-06-25 14:41:21,218 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21" (1/1) ... [2018-06-25 14:41:21,218 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21" (1/1) ... [2018-06-25 14:41:21,237 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21" (1/1) ... [2018-06-25 14:41:21,241 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21" (1/1) ... [2018-06-25 14:41:21,246 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21" (1/1) ... [2018-06-25 14:41:21,252 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 14:41:21,253 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 14:41:21,253 INFO ]: Initializing RCFGBuilder... [2018-06-25 14:41:21,253 INFO ]: RCFGBuilder initialized [2018-06-25 14:41:21,254 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21" (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) [2018-06-25 14:41:21,286 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 14:41:21,286 INFO ]: Found specification of procedure gotoProc [2018-06-25 14:41:21,287 INFO ]: Found implementation of procedure gotoProc [2018-06-25 14:41:21,287 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 14:41:21,287 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 14:41:21,287 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 [2018-06-25 14:41:21,956 INFO ]: Using library mode [2018-06-25 14:41:21,957 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 02:41:21 BoogieIcfgContainer [2018-06-25 14:41:21,957 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 14:41:21,958 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 14:41:21,958 INFO ]: Initializing TraceAbstraction... [2018-06-25 14:41:21,961 INFO ]: TraceAbstraction initialized [2018-06-25 14:41:21,961 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 02:41:21" (1/3) ... [2018-06-25 14:41:21,962 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb2d58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 02:41:21, skipping insertion in model container [2018-06-25 14:41:21,962 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 02:41:21" (2/3) ... [2018-06-25 14:41:21,962 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb2d58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 02:41:21, skipping insertion in model container [2018-06-25 14:41:21,962 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 02:41:21" (3/3) ... [2018-06-25 14:41:21,963 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 14:41:21,972 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 14:41:21,981 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 14:41:22,030 INFO ]: Using default assertion order modulation [2018-06-25 14:41:22,031 INFO ]: Interprodecural is true [2018-06-25 14:41:22,031 INFO ]: Hoare is false [2018-06-25 14:41:22,031 INFO ]: Compute interpolants for FPandBP [2018-06-25 14:41:22,031 INFO ]: Backedges is TWOTRACK [2018-06-25 14:41:22,031 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 14:41:22,031 INFO ]: Difference is false [2018-06-25 14:41:22,031 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 14:41:22,031 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 14:41:22,046 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 14:41:22,059 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 14:41:22,060 INFO ]: Found error trace [2018-06-25 14:41:22,060 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 14:41:22,060 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 14:41:22,065 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 14:41:22,068 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 14:41:22,068 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 14:41:22,115 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 14:41:22,115 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 14:41:22,115 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 14:41:22,284 INFO ]: Conjunction of SSA is unsat [2018-06-25 14:41:22,463 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 14:41:22,466 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 14:41:22,466 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 14:41:22,468 INFO ]: Interpolant automaton has 3 states [2018-06-25 14:41:22,483 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 14:41:22,483 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 14:41:22,486 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 14:41:22,572 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 14:41:22,572 INFO ]: Finished difference Result 4 states and 4 transitions. [2018-06-25 14:41:22,575 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 14:41:22,576 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 14:41:22,577 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 14:41:22,586 INFO ]: With dead ends: 4 [2018-06-25 14:41:22,586 INFO ]: Without dead ends: 0 [2018-06-25 14:41:22,587 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 14:41:22,604 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 14:41:22,610 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 14:41:22,611 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 14:41:22,611 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 14:41:22,612 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-06-25 14:41:22,612 INFO ]: Finished accepts. word is rejected. [2018-06-25 14:41:22,613 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 14:41:22,613 INFO ]: Interpolant automaton has 3 states. [2018-06-25 14:41:22,613 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 14:41:22,613 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 14:41:22,619 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 02:41:22 BoogieIcfgContainer [2018-06-25 14:41:22,619 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 14:41:22,620 INFO ]: Toolchain (without parser) took 1594.33 ms. Allocated memory was 309.3 MB in the beginning and 330.8 MB in the end (delta: 21.5 MB). Free memory was 231.8 MB in the beginning and 254.3 MB in the end (delta: -22.5 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 14:41:22,621 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 14:41:22,622 INFO ]: ChcToBoogie took 136.71 ms. Allocated memory is still 309.3 MB. Free memory was 231.8 MB in the beginning and 225.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 3.6 GB. [2018-06-25 14:41:22,622 INFO ]: Boogie Preprocessor took 83.84 ms. Allocated memory is still 309.3 MB. Free memory was 225.7 MB in the beginning and 223.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 14:41:22,623 INFO ]: RCFGBuilder took 703.89 ms. Allocated memory was 309.3 MB in the beginning and 330.8 MB in the end (delta: 21.5 MB). Free memory was 223.7 MB in the beginning and 279.1 MB in the end (delta: -55.3 MB). Peak memory consumption was 41.1 MB. Max. memory is 3.6 GB. [2018-06-25 14:41:22,623 INFO ]: TraceAbstraction took 661.57 ms. Allocated memory is still 330.8 MB. Free memory was 279.1 MB in the beginning and 254.3 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 3.6 GB. [2018-06-25 14:41:22,625 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 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 136.71 ms. Allocated memory is still 309.3 MB. Free memory was 231.8 MB in the beginning and 225.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 83.84 ms. Allocated memory is still 309.3 MB. Free memory was 225.7 MB in the beginning and 223.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 703.89 ms. Allocated memory was 309.3 MB in the beginning and 330.8 MB in the end (delta: 21.5 MB). Free memory was 223.7 MB in the beginning and 279.1 MB in the end (delta: -55.3 MB). Peak memory consumption was 41.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 661.57 ms. Allocated memory is still 330.8 MB. Free memory was 279.1 MB in the beginning and 254.3 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 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 2 procedures, 10 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 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_7_e2_2872_e2_5844.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_14-41-22-637.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/DRAGON_7_e2_2872_e2_5844.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_14-41-22-637.csv Received shutdown request...