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/metros_2_e2_704_e2_13.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 16:37:03,325 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 16:37:03,328 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 16:37:03,341 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 16:37:03,341 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 16:37:03,342 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 16:37:03,343 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 16:37:03,345 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 16:37:03,347 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 16:37:03,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 16:37:03,348 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 16:37:03,348 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 16:37:03,349 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 16:37:03,350 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 16:37:03,351 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 16:37:03,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 16:37:03,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 16:37:03,357 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 16:37:03,358 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 16:37:03,359 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 16:37:03,361 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 16:37:03,370 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 16:37:03,370 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 16:37:03,371 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 16:37:03,371 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 16:37:03,372 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 16:37:03,373 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 16:37:03,374 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 16:37:03,384 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 16:37:03,384 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 16:37:03,385 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 16:37:03,386 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 16:37:03,386 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 16:37:03,387 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 16:37:03,387 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 16:37:03,387 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 16:37:03,410 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 16:37:03,410 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 16:37:03,410 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 16:37:03,411 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 16:37:03,411 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 16:37:03,412 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 16:37:03,412 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 16:37:03,412 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 16:37:03,412 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 16:37:03,412 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 16:37:03,413 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 16:37:03,414 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 16:37:03,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 16:37:03,414 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 16:37:03,414 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 16:37:03,414 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 16:37:03,415 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 16:37:03,415 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 16:37:03,415 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 16:37:03,415 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 16:37:03,415 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 16:37:03,417 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 16:37:03,418 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 16:37:03,456 INFO ]: Repository-Root is: /tmp [2018-06-25 16:37:03,477 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 16:37:03,484 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 16:37:03,485 INFO ]: Initializing SmtParser... [2018-06-25 16:37:03,486 INFO ]: SmtParser initialized [2018-06-25 16:37:03,486 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_2_e2_704_e2_13.smt2 [2018-06-25 16:37:03,487 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 16:37:03,576 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_2_e2_704_e2_13.smt2 unknown [2018-06-25 16:37:04,025 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_2_e2_704_e2_13.smt2 [2018-06-25 16:37:04,029 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 16:37:04,043 INFO ]: Walking toolchain with 4 elements. [2018-06-25 16:37:04,044 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 16:37:04,044 INFO ]: Initializing ChcToBoogie... [2018-06-25 16:37:04,044 INFO ]: ChcToBoogie initialized [2018-06-25 16:37:04,047 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:37:04" (1/1) ... [2018-06-25 16:37:04,146 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04 Unit [2018-06-25 16:37:04,147 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 16:37:04,147 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 16:37:04,147 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 16:37:04,147 INFO ]: Boogie Preprocessor initialized [2018-06-25 16:37:04,171 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04" (1/1) ... [2018-06-25 16:37:04,171 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04" (1/1) ... [2018-06-25 16:37:04,192 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04" (1/1) ... [2018-06-25 16:37:04,192 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04" (1/1) ... [2018-06-25 16:37:04,198 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04" (1/1) ... [2018-06-25 16:37:04,208 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04" (1/1) ... [2018-06-25 16:37:04,210 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04" (1/1) ... [2018-06-25 16:37:04,218 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 16:37:04,219 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 16:37:04,219 INFO ]: Initializing RCFGBuilder... [2018-06-25 16:37:04,219 INFO ]: RCFGBuilder initialized [2018-06-25 16:37:04,219 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 16:37:04,238 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 16:37:04,238 INFO ]: Found specification of procedure gotoProc [2018-06-25 16:37:04,238 INFO ]: Found implementation of procedure gotoProc [2018-06-25 16:37:04,239 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 16:37:04,239 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 16:37:04,239 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 16:37:04,668 INFO ]: Using library mode [2018-06-25 16:37:04,669 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:37:04 BoogieIcfgContainer [2018-06-25 16:37:04,669 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 16:37:04,670 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 16:37:04,670 INFO ]: Initializing TraceAbstraction... [2018-06-25 16:37:04,673 INFO ]: TraceAbstraction initialized [2018-06-25 16:37:04,674 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:37:04" (1/3) ... [2018-06-25 16:37:04,674 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406d3a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 04:37:04, skipping insertion in model container [2018-06-25 16:37:04,675 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:37:04" (2/3) ... [2018-06-25 16:37:04,675 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406d3a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 04:37:04, skipping insertion in model container [2018-06-25 16:37:04,675 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:37:04" (3/3) ... [2018-06-25 16:37:04,677 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 16:37:04,686 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 16:37:04,697 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 16:37:04,748 INFO ]: Using default assertion order modulation [2018-06-25 16:37:04,748 INFO ]: Interprodecural is true [2018-06-25 16:37:04,748 INFO ]: Hoare is false [2018-06-25 16:37:04,748 INFO ]: Compute interpolants for FPandBP [2018-06-25 16:37:04,748 INFO ]: Backedges is TWOTRACK [2018-06-25 16:37:04,748 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 16:37:04,748 INFO ]: Difference is false [2018-06-25 16:37:04,748 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 16:37:04,748 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 16:37:04,765 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 16:37:04,779 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 16:37:04,779 INFO ]: Found error trace [2018-06-25 16:37:04,780 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:37:04,781 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:37:04,786 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 16:37:04,789 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:37:04,789 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:37:04,821 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:04,821 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:37:04,821 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:04,909 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:37:05,038 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:37:05,040 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 16:37:05,040 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 16:37:05,041 INFO ]: Interpolant automaton has 3 states [2018-06-25 16:37:05,052 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 16:37:05,052 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:37:05,054 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 16:37:05,123 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:37:05,123 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 16:37:05,123 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 16:37:05,124 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 16:37:05,125 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:37:05,131 INFO ]: With dead ends: 9 [2018-06-25 16:37:05,131 INFO ]: Without dead ends: 9 [2018-06-25 16:37:05,132 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 16:37:05,145 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 16:37:05,172 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 16:37:05,173 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 16:37:05,174 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 16:37:05,174 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 16:37:05,175 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:37:05,175 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 16:37:05,175 INFO ]: Interpolant automaton has 3 states. [2018-06-25 16:37:05,175 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 16:37:05,175 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 16:37:05,175 INFO ]: Found error trace [2018-06-25 16:37:05,175 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:37:05,175 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:37:05,175 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 16:37:05,175 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:37:05,175 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:37:05,176 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:05,176 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:37:05,176 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:05,310 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:37:05,570 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:37:05,570 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:37:05,570 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:37:05,577 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:37:05,718 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:37:05,729 INFO ]: Computing forward predicates... [2018-06-25 16:37:06,081 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:37:06,115 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:37:06,115 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 16:37:06,115 INFO ]: Interpolant automaton has 6 states [2018-06-25 16:37:06,116 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 16:37:06,116 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-25 16:37:06,116 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 16:37:06,291 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:37:06,291 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 16:37:06,293 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 16:37:06,293 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 16:37:06,293 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:37:06,293 INFO ]: With dead ends: 11 [2018-06-25 16:37:06,293 INFO ]: Without dead ends: 11 [2018-06-25 16:37:06,294 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-25 16:37:06,294 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 16:37:06,295 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 16:37:06,295 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 16:37:06,296 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 16:37:06,296 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-25 16:37:06,296 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:37:06,296 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 16:37:06,296 INFO ]: Interpolant automaton has 6 states. [2018-06-25 16:37:06,296 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 16:37:06,296 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 16:37:06,296 INFO ]: Found error trace [2018-06-25 16:37:06,296 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:37:06,296 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:37:06,297 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-25 16:37:06,297 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:37:06,297 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:37:06,297 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:06,297 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:37:06,297 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:06,454 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:37:07,330 WARN ]: Spent 669.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2018-06-25 16:37:07,566 WARN ]: Spent 143.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-06-25 16:37:07,595 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:37:07,595 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:37:07,595 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 [2018-06-25 16:37:07,605 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 16:37:07,802 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 16:37:07,803 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:37:07,811 INFO ]: Computing forward predicates... [2018-06-25 16:37:08,296 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:37:08,316 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:37:08,316 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-25 16:37:08,316 INFO ]: Interpolant automaton has 10 states [2018-06-25 16:37:08,317 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-25 16:37:08,317 INFO ]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-06-25 16:37:08,317 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-06-25 16:37:08,469 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:37:08,469 INFO ]: Finished difference Result 14 states and 14 transitions. [2018-06-25 16:37:08,470 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-25 16:37:08,470 INFO ]: Start accepts. Automaton has 10 states. Word has length 10 [2018-06-25 16:37:08,470 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:37:08,470 INFO ]: With dead ends: 14 [2018-06-25 16:37:08,470 INFO ]: Without dead ends: 14 [2018-06-25 16:37:08,471 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-06-25 16:37:08,471 INFO ]: Start minimizeSevpa. Operand 14 states. [2018-06-25 16:37:08,472 INFO ]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-06-25 16:37:08,472 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-25 16:37:08,473 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-06-25 16:37:08,473 INFO ]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2018-06-25 16:37:08,473 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:37:08,473 INFO ]: Abstraction has 14 states and 14 transitions. [2018-06-25 16:37:08,473 INFO ]: Interpolant automaton has 10 states. [2018-06-25 16:37:08,473 INFO ]: Start isEmpty. Operand 14 states and 14 transitions. [2018-06-25 16:37:08,473 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-25 16:37:08,473 INFO ]: Found error trace [2018-06-25 16:37:08,473 INFO ]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:37:08,473 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:37:08,474 INFO ]: Analyzing trace with hash 679342766, now seen corresponding path program 3 times [2018-06-25 16:37:08,474 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:37:08,474 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:37:08,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:08,474 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 16:37:08,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:09,131 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:37:09,590 WARN ]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-06-25 16:37:09,873 WARN ]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 12 [2018-06-25 16:37:10,114 WARN ]: Spent 205.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 12 [2018-06-25 16:37:10,335 WARN ]: Spent 203.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 12 [2018-06-25 16:37:10,504 WARN ]: Spent 153.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 12 [2018-06-25 16:37:10,516 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:37:10,516 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:37:10,517 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 [2018-06-25 16:37:10,525 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 16:37:10,777 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-25 16:37:10,778 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:37:10,789 INFO ]: Computing forward predicates... [2018-06-25 16:37:11,020 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:37:11,065 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:37:11,320 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:37:11,327 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:37:11,344 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:37:11,349 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:37:11,674 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:37:11,676 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:37:11,677 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:37:11,678 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:37:11,956 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:37:11,977 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:37:11,977 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-06-25 16:37:11,977 INFO ]: Interpolant automaton has 16 states [2018-06-25 16:37:11,978 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-25 16:37:11,978 INFO ]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-06-25 16:37:11,978 INFO ]: Start difference. First operand 14 states and 14 transitions. Second operand 16 states. [2018-06-25 16:37:12,213 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:37:12,213 INFO ]: Finished difference Result 16 states and 16 transitions. [2018-06-25 16:37:12,216 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-25 16:37:12,216 INFO ]: Start accepts. Automaton has 16 states. Word has length 13 [2018-06-25 16:37:12,216 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:37:12,216 INFO ]: With dead ends: 16 [2018-06-25 16:37:12,216 INFO ]: Without dead ends: 16 [2018-06-25 16:37:12,217 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2018-06-25 16:37:12,217 INFO ]: Start minimizeSevpa. Operand 16 states. [2018-06-25 16:37:12,218 INFO ]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-06-25 16:37:12,218 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-25 16:37:12,219 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-06-25 16:37:12,219 INFO ]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-06-25 16:37:12,219 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:37:12,219 INFO ]: Abstraction has 16 states and 16 transitions. [2018-06-25 16:37:12,219 INFO ]: Interpolant automaton has 16 states. [2018-06-25 16:37:12,219 INFO ]: Start isEmpty. Operand 16 states and 16 transitions. [2018-06-25 16:37:12,219 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-25 16:37:12,219 INFO ]: Found error trace [2018-06-25 16:37:12,219 INFO ]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:37:12,220 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:37:12,220 INFO ]: Analyzing trace with hash 39881678, now seen corresponding path program 4 times [2018-06-25 16:37:12,220 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:37:12,220 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:37:12,220 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:12,220 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 16:37:12,220 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:37:12,654 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:37:15,251 WARN ]: Spent 879.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 13 [2018-06-25 16:37:15,786 WARN ]: Spent 434.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 13 [2018-06-25 16:37:16,538 WARN ]: Spent 693.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 13 [2018-06-25 16:37:17,266 WARN ]: Spent 669.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 13 [2018-06-25 16:37:17,894 WARN ]: Spent 497.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 13 [2018-06-25 16:37:18,167 WARN ]: Spent 244.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 13 [2018-06-25 16:37:18,397 INFO ]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:37:18,397 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:37:18,397 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) [2018-06-25 16:37:18,414 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:37:18,731 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-25 16:37:18,731 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:37:18,750 INFO ]: Computing forward predicates... [2018-06-25 16:37:18,921 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:37:18,923 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:37:18,925 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:37:18,928 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:37:18,932 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:37:18,935 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:37:18,939 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:37:18,943 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:37:19,358 WARN ]: expecting exponential blowup for input size 19 Received shutdown request... [2018-06-25 16:37:52,263 INFO ]: Timeout while computing interpolants [2018-06-25 16:37:52,464 WARN ]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:37:52,464 WARN ]: Verification canceled [2018-06-25 16:37:52,476 WARN ]: Timeout [2018-06-25 16:37:52,476 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 04:37:52 BoogieIcfgContainer [2018-06-25 16:37:52,476 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 16:37:52,477 INFO ]: Toolchain (without parser) took 48447.32 ms. Allocated memory was 309.3 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 250.7 MB in the beginning and 928.0 MB in the end (delta: -677.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 3.6 GB. [2018-06-25 16:37:52,478 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 16:37:52,478 INFO ]: ChcToBoogie took 102.93 ms. Allocated memory is still 309.3 MB. Free memory was 250.7 MB in the beginning and 247.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:37:52,478 INFO ]: Boogie Preprocessor took 70.94 ms. Allocated memory is still 309.3 MB. Free memory was 247.8 MB in the beginning and 246.8 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. [2018-06-25 16:37:52,479 INFO ]: RCFGBuilder took 450.23 ms. Allocated memory is still 309.3 MB. Free memory was 246.8 MB in the beginning and 214.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:37:52,479 INFO ]: TraceAbstraction took 47805.97 ms. Allocated memory was 309.3 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 214.7 MB in the beginning and 928.0 MB in the end (delta: -713.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 3.6 GB. [2018-06-25 16:37:52,482 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 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 102.93 ms. Allocated memory is still 309.3 MB. Free memory was 250.7 MB in the beginning and 247.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 70.94 ms. Allocated memory is still 309.3 MB. Free memory was 247.8 MB in the beginning and 246.8 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. * RCFGBuilder took 450.23 ms. Allocated memory is still 309.3 MB. Free memory was 246.8 MB in the beginning and 214.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 47805.97 ms. Allocated memory was 309.3 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 214.7 MB in the beginning and 928.0 MB in the end (delta: -713.3 MB). Peak memory consumption was 2.5 GB. 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 analyzing trace of length 16 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was transforming 19 conjuction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 47.7s OverallTime, 5 OverallIterations, 8 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 0 SDslu, 100 SDs, 0 SdLazy, 71 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 1.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 3785 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3130 ConjunctsInSsa, 229 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/56 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_2_e2_704_e2_13.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_16-37-52-494.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/metros_2_e2_704_e2_13.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_16-37-52-494.csv Completed graceful shutdown