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/metros_1_e1_846_e1_1317.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 16:02:55,326 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 16:02:55,331 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 16:02:55,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 16:02:55,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 16:02:55,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 16:02:55,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 16:02:55,352 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 16:02:55,355 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 16:02:55,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 16:02:55,357 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 16:02:55,357 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 16:02:55,358 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 16:02:55,359 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 16:02:55,361 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 16:02:55,362 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 16:02:55,363 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 16:02:55,373 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 16:02:55,374 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 16:02:55,375 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 16:02:55,376 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 16:02:55,381 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 16:02:55,381 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 16:02:55,381 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 16:02:55,382 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 16:02:55,386 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 16:02:55,386 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 16:02:55,387 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 16:02:55,388 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 16:02:55,388 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 16:02:55,389 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 16:02:55,395 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 16:02:55,395 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 16:02:55,396 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 16:02:55,396 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 16:02:55,396 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 16:02:55,419 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 16:02:55,419 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 16:02:55,419 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 16:02:55,419 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 16:02:55,422 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 16:02:55,422 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 16:02:55,423 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 16:02:55,423 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 16:02:55,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 16:02:55,423 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 16:02:55,423 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 16:02:55,424 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 16:02:55,424 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 16:02:55,424 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 16:02:55,424 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 16:02:55,424 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 16:02:55,425 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 16:02:55,430 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 16:02:55,430 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 16:02:55,485 INFO ]: Repository-Root is: /tmp [2018-06-18 16:02:55,500 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 16:02:55,505 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 16:02:55,506 INFO ]: Initializing SmtParser... [2018-06-18 16:02:55,506 INFO ]: SmtParser initialized [2018-06-18 16:02:55,507 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_1_e1_846_e1_1317.smt2 [2018-06-18 16:02:55,509 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 16:02:55,605 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_1_e1_846_e1_1317.smt2 unknown [2018-06-18 16:02:56,091 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_1_e1_846_e1_1317.smt2 [2018-06-18 16:02:56,098 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 16:02:56,114 INFO ]: Walking toolchain with 4 elements. [2018-06-18 16:02:56,114 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 16:02:56,114 INFO ]: Initializing ChcToBoogie... [2018-06-18 16:02:56,114 INFO ]: ChcToBoogie initialized [2018-06-18 16:02:56,131 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 04:02:56" (1/1) ... [2018-06-18 16:02:56,284 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56 Unit [2018-06-18 16:02:56,284 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 16:02:56,285 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 16:02:56,285 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 16:02:56,285 INFO ]: Boogie Preprocessor initialized [2018-06-18 16:02:56,310 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56" (1/1) ... [2018-06-18 16:02:56,310 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56" (1/1) ... [2018-06-18 16:02:56,331 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56" (1/1) ... [2018-06-18 16:02:56,331 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56" (1/1) ... [2018-06-18 16:02:56,336 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56" (1/1) ... [2018-06-18 16:02:56,347 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56" (1/1) ... [2018-06-18 16:02:56,349 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56" (1/1) ... [2018-06-18 16:02:56,352 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 16:02:56,352 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 16:02:56,352 INFO ]: Initializing RCFGBuilder... [2018-06-18 16:02:56,352 INFO ]: RCFGBuilder initialized [2018-06-18 16:02:56,353 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56" (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 16:02:56,366 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 16:02:56,366 INFO ]: Found specification of procedure False [2018-06-18 16:02:56,366 INFO ]: Found implementation of procedure False [2018-06-18 16:02:56,366 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 16:02:56,366 INFO ]: Found specification of procedure state [2018-06-18 16:02:56,367 INFO ]: Found implementation of procedure state [2018-06-18 16:02:56,367 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 16:02:56,367 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 16:02:56,367 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 16:02:56,821 INFO ]: Using library mode [2018-06-18 16:02:56,821 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 04:02:56 BoogieIcfgContainer [2018-06-18 16:02:56,821 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 16:02:56,825 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 16:02:56,825 INFO ]: Initializing TraceAbstraction... [2018-06-18 16:02:56,829 INFO ]: TraceAbstraction initialized [2018-06-18 16:02:56,829 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 04:02:56" (1/3) ... [2018-06-18 16:02:56,830 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4176783f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 04:02:56, skipping insertion in model container [2018-06-18 16:02:56,830 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:02:56" (2/3) ... [2018-06-18 16:02:56,830 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4176783f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 04:02:56, skipping insertion in model container [2018-06-18 16:02:56,830 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 04:02:56" (3/3) ... [2018-06-18 16:02:56,833 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 16:02:56,843 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 16:02:56,856 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 16:02:56,908 INFO ]: Using default assertion order modulation [2018-06-18 16:02:56,908 INFO ]: Interprodecural is true [2018-06-18 16:02:56,908 INFO ]: Hoare is false [2018-06-18 16:02:56,908 INFO ]: Compute interpolants for FPandBP [2018-06-18 16:02:56,908 INFO ]: Backedges is TWOTRACK [2018-06-18 16:02:56,908 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 16:02:56,908 INFO ]: Difference is false [2018-06-18 16:02:56,908 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 16:02:56,909 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 16:02:56,927 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 16:02:56,946 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 16:02:56,946 INFO ]: Found error trace [2018-06-18 16:02:56,949 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:02:56,949 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:02:56,954 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-18 16:02:56,956 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:02:56,957 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:02:57,013 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:02:57,013 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 16:02:57,013 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:02:57,144 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:02:57,153 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:02:57,339 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 16:02:57,343 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 16:02:57,343 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 16:02:57,345 INFO ]: Interpolant automaton has 4 states [2018-06-18 16:02:57,363 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 16:02:57,364 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 16:02:57,367 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 16:02:57,513 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 16:02:57,513 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 16:02:57,515 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 16:02:57,517 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 16:02:57,517 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 16:02:57,535 INFO ]: With dead ends: 13 [2018-06-18 16:02:57,535 INFO ]: Without dead ends: 13 [2018-06-18 16:02:57,538 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 16:02:57,555 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 16:02:57,600 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 16:02:57,601 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 16:02:57,602 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 16:02:57,603 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 16:02:57,604 INFO ]: Finished accepts. word is rejected. [2018-06-18 16:02:57,604 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 16:02:57,604 INFO ]: Interpolant automaton has 4 states. [2018-06-18 16:02:57,604 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 16:02:57,605 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 16:02:57,606 INFO ]: Found error trace [2018-06-18 16:02:57,606 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:02:57,606 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:02:57,606 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-18 16:02:57,606 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:02:57,606 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:02:57,607 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:02:57,607 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 16:02:57,607 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:02:57,690 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:02:57,694 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:02:57,968 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 16:02:57,968 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 16:02:57,968 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-18 16:02:57,988 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 16:02:58,092 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:02:58,102 INFO ]: Computing forward predicates... [2018-06-18 16:02:58,370 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 16:02:58,394 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 16:02:58,394 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-18 16:02:58,395 INFO ]: Interpolant automaton has 8 states [2018-06-18 16:02:58,395 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-18 16:02:58,396 INFO ]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-06-18 16:02:58,396 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-18 16:02:58,918 WARN ]: Spent 332.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-06-18 16:02:59,037 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 16:02:59,038 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-18 16:02:59,038 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-18 16:02:59,038 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-18 16:02:59,039 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 16:02:59,039 INFO ]: With dead ends: 15 [2018-06-18 16:02:59,039 INFO ]: Without dead ends: 15 [2018-06-18 16:02:59,040 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-06-18 16:02:59,041 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-18 16:02:59,043 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-18 16:02:59,043 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-18 16:02:59,044 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-18 16:02:59,044 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-18 16:02:59,044 INFO ]: Finished accepts. word is rejected. [2018-06-18 16:02:59,044 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-18 16:02:59,044 INFO ]: Interpolant automaton has 8 states. [2018-06-18 16:02:59,044 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-18 16:02:59,045 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-18 16:02:59,045 INFO ]: Found error trace [2018-06-18 16:02:59,045 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:02:59,045 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:02:59,045 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-18 16:02:59,045 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:02:59,045 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:02:59,046 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:02:59,046 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 16:02:59,046 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:02:59,126 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:02:59,127 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:02:59,477 WARN ]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-18 16:02:59,822 WARN ]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-06-18 16:02:59,921 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 16:02:59,921 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 16:02:59,921 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 16:02:59,928 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-18 16:03:00,074 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-18 16:03:00,074 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:03:00,080 INFO ]: Computing forward predicates... [2018-06-18 16:03:00,376 WARN ]: Spent 111.00 ms on a formula simplification. DAG size of input: 5 DAG size of output: 4 [2018-06-18 16:03:00,565 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 16:03:00,591 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 16:03:00,591 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-06-18 16:03:00,591 INFO ]: Interpolant automaton has 12 states [2018-06-18 16:03:00,592 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-18 16:03:00,593 INFO ]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-06-18 16:03:00,593 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 12 states. [2018-06-18 16:03:00,948 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 16:03:00,948 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-18 16:03:00,949 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-18 16:03:00,949 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-18 16:03:00,949 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 16:03:00,949 INFO ]: With dead ends: 17 [2018-06-18 16:03:00,949 INFO ]: Without dead ends: 17 [2018-06-18 16:03:00,950 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-06-18 16:03:00,950 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-18 16:03:00,954 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-18 16:03:00,954 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-18 16:03:00,955 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-18 16:03:00,955 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-18 16:03:00,955 INFO ]: Finished accepts. word is rejected. [2018-06-18 16:03:00,955 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-18 16:03:00,955 INFO ]: Interpolant automaton has 12 states. [2018-06-18 16:03:00,955 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-18 16:03:00,956 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-18 16:03:00,956 INFO ]: Found error trace [2018-06-18 16:03:00,956 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:03:00,956 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:03:00,956 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 3 times [2018-06-18 16:03:00,956 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:03:00,956 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:03:00,957 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:03:00,957 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 16:03:00,957 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:03:01,051 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:03:01,052 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:03:01,473 WARN ]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2018-06-18 16:03:01,682 WARN ]: Spent 185.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2018-06-18 16:03:01,810 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-18 16:03:01,810 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 16:03:01,810 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 16:03:01,826 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-18 16:03:02,004 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-18 16:03:02,005 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:03:02,012 INFO ]: Computing forward predicates... [2018-06-18 16:03:02,508 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 16:03:02,538 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 16:03:02,558 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 16:03:02,599 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 16:03:02,609 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 16:03:02,617 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 16:03:04,830 WARN ]: Spent 1.38 s on a formula simplification. DAG size of input: 165 DAG size of output: 66 [2018-06-18 16:03:04,954 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-18 16:03:04,976 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 16:03:04,976 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-06-18 16:03:04,976 INFO ]: Interpolant automaton has 16 states [2018-06-18 16:03:04,977 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-18 16:03:04,977 INFO ]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2018-06-18 16:03:04,977 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 16 states. [2018-06-18 16:03:05,691 WARN ]: Spent 649.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 134 [2018-06-18 16:03:06,183 WARN ]: Spent 401.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 117 [2018-06-18 16:03:07,144 WARN ]: Spent 914.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 127 [2018-06-18 16:03:07,708 WARN ]: Spent 522.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2018-06-18 16:03:07,760 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 16:03:07,760 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-18 16:03:07,762 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-18 16:03:07,762 INFO ]: Start accepts. Automaton has 16 states. Word has length 21 [2018-06-18 16:03:07,762 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 16:03:07,762 INFO ]: With dead ends: 19 [2018-06-18 16:03:07,762 INFO ]: Without dead ends: 19 [2018-06-18 16:03:07,763 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2018-06-18 16:03:07,763 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-18 16:03:07,767 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-18 16:03:07,767 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-18 16:03:07,768 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-18 16:03:07,768 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-18 16:03:07,768 INFO ]: Finished accepts. word is rejected. [2018-06-18 16:03:07,768 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-18 16:03:07,768 INFO ]: Interpolant automaton has 16 states. [2018-06-18 16:03:07,768 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-18 16:03:07,769 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-18 16:03:07,769 INFO ]: Found error trace [2018-06-18 16:03:07,769 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:03:07,769 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:03:07,769 INFO ]: Analyzing trace with hash -434924750, now seen corresponding path program 4 times [2018-06-18 16:03:07,769 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:03:07,769 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:03:07,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:03:07,770 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 16:03:07,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:03:07,904 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:03:07,905 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:03:08,526 WARN ]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2018-06-18 16:03:09,061 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-18 16:03:09,061 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 16:03:09,061 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 16:03:09,068 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-18 16:03:09,220 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-18 16:03:09,220 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:03:09,235 INFO ]: Computing forward predicates... [2018-06-18 16:03:09,715 WARN ]: Spent 214.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2018-06-18 16:03:09,740 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 16:03:52,342 WARN ]: Spent 32.88 s on a formula simplification. DAG size of input: 1209 DAG size of output: 65 [2018-06-18 16:03:54,136 WARN ]: Spent 823.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 36 [2018-06-18 16:03:55,876 WARN ]: Spent 785.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 57 [2018-06-18 16:03:55,977 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-18 16:03:55,999 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 16:03:55,999 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2018-06-18 16:03:55,999 INFO ]: Interpolant automaton has 20 states [2018-06-18 16:03:55,999 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-18 16:03:55,999 INFO ]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2018-06-18 16:03:55,999 INFO ]: Start difference. First operand 19 states and 20 transitions. Second operand 20 states. Received shutdown request... [2018-06-18 16:03:56,564 WARN ]: Removed 19 from assertion stack [2018-06-18 16:03:56,564 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-18 16:03:56,564 WARN ]: Verification canceled [2018-06-18 16:03:56,569 WARN ]: Timeout [2018-06-18 16:03:56,569 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 04:03:56 BoogieIcfgContainer [2018-06-18 16:03:56,569 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 16:03:56,570 INFO ]: Toolchain (without parser) took 60471.31 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 248.6 MB in the beginning and 970.8 MB in the end (delta: -722.2 MB). Peak memory consumption was 343.2 MB. Max. memory is 3.6 GB. [2018-06-18 16:03:56,571 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 16:03:56,571 INFO ]: ChcToBoogie took 170.01 ms. Allocated memory is still 307.2 MB. Free memory was 247.6 MB in the beginning and 244.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-18 16:03:56,572 INFO ]: Boogie Preprocessor took 67.15 ms. Allocated memory is still 307.2 MB. Free memory was 244.6 MB in the beginning and 242.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 16:03:56,574 INFO ]: RCFGBuilder took 469.23 ms. Allocated memory is still 307.2 MB. Free memory was 242.6 MB in the beginning and 218.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 3.6 GB. [2018-06-18 16:03:56,575 INFO ]: TraceAbstraction took 59744.16 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 217.5 MB in the beginning and 970.8 MB in the end (delta: -753.3 MB). Peak memory consumption was 312.1 MB. Max. memory is 3.6 GB. [2018-06-18 16:03:56,577 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 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 170.01 ms. Allocated memory is still 307.2 MB. Free memory was 247.6 MB in the beginning and 244.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 67.15 ms. Allocated memory is still 307.2 MB. Free memory was 244.6 MB in the beginning and 242.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 469.23 ms. Allocated memory is still 307.2 MB. Free memory was 242.6 MB in the beginning and 218.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 59744.16 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 217.5 MB in the beginning and 970.8 MB in the end (delta: -753.3 MB). Peak memory consumption was 312.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was constructing difference of abstraction (19states) and interpolant automaton (currently 3 states, 20 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 191. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 59.6s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 4.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 SDtfs, 41 SDslu, 192 SDs, 0 SdLazy, 149 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 44.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=4, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 53.6s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 89992 SizeOfPredicates, 160 NumberOfNonLiveVariables, 3136 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 40/140 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/metros_1_e1_846_e1_1317.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_16-03-56-590.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/metros_1_e1_846_e1_1317.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_16-03-56-590.csv Completed graceful shutdown