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_3_e3_1275_e4_164.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 16:11:07,395 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 16:11:07,397 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 16:11:07,415 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 16:11:07,416 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 16:11:07,417 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 16:11:07,418 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 16:11:07,422 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 16:11:07,424 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 16:11:07,425 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 16:11:07,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 16:11:07,426 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 16:11:07,427 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 16:11:07,431 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 16:11:07,431 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 16:11:07,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 16:11:07,445 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 16:11:07,447 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 16:11:07,448 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 16:11:07,449 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 16:11:07,450 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 16:11:07,452 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 16:11:07,456 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 16:11:07,456 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 16:11:07,457 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 16:11:07,458 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 16:11:07,459 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 16:11:07,460 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 16:11:07,461 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 16:11:07,462 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 16:11:07,462 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 16:11:07,468 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 16:11:07,468 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 16:11:07,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 16:11:07,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 16:11:07,470 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 16:11:07,490 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 16:11:07,490 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 16:11:07,491 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 16:11:07,491 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 16:11:07,492 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 16:11:07,492 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 16:11:07,493 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 16:11:07,493 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 16:11:07,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 16:11:07,494 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 16:11:07,494 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 16:11:07,494 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 16:11:07,494 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 16:11:07,495 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 16:11:07,495 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 16:11:07,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 16:11:07,495 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 16:11:07,497 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 16:11:07,500 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 16:11:07,552 INFO ]: Repository-Root is: /tmp [2018-06-18 16:11:07,567 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 16:11:07,572 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 16:11:07,573 INFO ]: Initializing SmtParser... [2018-06-18 16:11:07,573 INFO ]: SmtParser initialized [2018-06-18 16:11:07,574 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e3_1275_e4_164.smt2 [2018-06-18 16:11:07,577 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 16:11:07,663 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e3_1275_e4_164.smt2 unknown [2018-06-18 16:11:08,031 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e3_1275_e4_164.smt2 [2018-06-18 16:11:08,036 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 16:11:08,049 INFO ]: Walking toolchain with 4 elements. [2018-06-18 16:11:08,050 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 16:11:08,050 INFO ]: Initializing ChcToBoogie... [2018-06-18 16:11:08,050 INFO ]: ChcToBoogie initialized [2018-06-18 16:11:08,065 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 04:11:08" (1/1) ... [2018-06-18 16:11:08,195 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08 Unit [2018-06-18 16:11:08,195 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 16:11:08,196 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 16:11:08,196 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 16:11:08,196 INFO ]: Boogie Preprocessor initialized [2018-06-18 16:11:08,220 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08" (1/1) ... [2018-06-18 16:11:08,220 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08" (1/1) ... [2018-06-18 16:11:08,235 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08" (1/1) ... [2018-06-18 16:11:08,235 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08" (1/1) ... [2018-06-18 16:11:08,248 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08" (1/1) ... [2018-06-18 16:11:08,249 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08" (1/1) ... [2018-06-18 16:11:08,251 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08" (1/1) ... [2018-06-18 16:11:08,254 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 16:11:08,256 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 16:11:08,257 INFO ]: Initializing RCFGBuilder... [2018-06-18 16:11:08,257 INFO ]: RCFGBuilder initialized [2018-06-18 16:11:08,258 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08" (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 16:11:08,280 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 16:11:08,280 INFO ]: Found specification of procedure False [2018-06-18 16:11:08,280 INFO ]: Found implementation of procedure False [2018-06-18 16:11:08,280 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 16:11:08,280 INFO ]: Found specification of procedure state [2018-06-18 16:11:08,280 INFO ]: Found implementation of procedure state [2018-06-18 16:11:08,280 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 16:11:08,280 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 16:11:08,280 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 16:11:08,670 INFO ]: Using library mode [2018-06-18 16:11:08,671 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 04:11:08 BoogieIcfgContainer [2018-06-18 16:11:08,671 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 16:11:08,673 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 16:11:08,673 INFO ]: Initializing TraceAbstraction... [2018-06-18 16:11:08,680 INFO ]: TraceAbstraction initialized [2018-06-18 16:11:08,680 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 04:11:08" (1/3) ... [2018-06-18 16:11:08,681 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43416ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 04:11:08, skipping insertion in model container [2018-06-18 16:11:08,681 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 04:11:08" (2/3) ... [2018-06-18 16:11:08,682 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43416ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 04:11:08, skipping insertion in model container [2018-06-18 16:11:08,682 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 04:11:08" (3/3) ... [2018-06-18 16:11:08,684 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 16:11:08,695 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 16:11:08,704 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 16:11:08,755 INFO ]: Using default assertion order modulation [2018-06-18 16:11:08,756 INFO ]: Interprodecural is true [2018-06-18 16:11:08,756 INFO ]: Hoare is false [2018-06-18 16:11:08,756 INFO ]: Compute interpolants for FPandBP [2018-06-18 16:11:08,756 INFO ]: Backedges is TWOTRACK [2018-06-18 16:11:08,756 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 16:11:08,756 INFO ]: Difference is false [2018-06-18 16:11:08,756 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 16:11:08,756 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 16:11:08,774 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 16:11:08,796 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 16:11:08,796 INFO ]: Found error trace [2018-06-18 16:11:08,797 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:11:08,797 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:11:08,803 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-18 16:11:08,806 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:11:08,806 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:11:08,858 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:08,858 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 16:11:08,858 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:08,985 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:08,995 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:11:09,123 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 16:11:09,126 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 16:11:09,126 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 16:11:09,128 INFO ]: Interpolant automaton has 4 states [2018-06-18 16:11:09,140 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 16:11:09,141 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 16:11:09,143 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 16:11:09,252 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 16:11:09,252 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 16:11:09,252 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 16:11:09,253 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 16:11:09,254 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 16:11:09,271 INFO ]: With dead ends: 13 [2018-06-18 16:11:09,271 INFO ]: Without dead ends: 13 [2018-06-18 16:11:09,273 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 16:11:09,292 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 16:11:09,329 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 16:11:09,331 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 16:11:09,332 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 16:11:09,333 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 16:11:09,333 INFO ]: Finished accepts. word is rejected. [2018-06-18 16:11:09,333 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 16:11:09,333 INFO ]: Interpolant automaton has 4 states. [2018-06-18 16:11:09,333 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 16:11:09,335 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 16:11:09,335 INFO ]: Found error trace [2018-06-18 16:11:09,335 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:11:09,335 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:11:09,335 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-18 16:11:09,335 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:11:09,335 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:11:09,336 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:09,336 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 16:11:09,336 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:09,441 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:09,442 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:11:09,783 WARN ]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-18 16:11:10,015 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 16:11:10,015 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 16:11:10,015 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 [2018-06-18 16:11:10,024 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 16:11:10,154 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:10,165 INFO ]: Computing forward predicates... [2018-06-18 16:11:10,476 WARN ]: Spent 177.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-06-18 16:11:10,780 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 16:11:10,803 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 16:11:10,803 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-18 16:11:10,803 INFO ]: Interpolant automaton has 9 states [2018-06-18 16:11:10,804 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-18 16:11:10,804 INFO ]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-06-18 16:11:10,804 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-18 16:11:11,324 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 16:11:11,324 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-18 16:11:11,325 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-18 16:11:11,325 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-18 16:11:11,325 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 16:11:11,326 INFO ]: With dead ends: 15 [2018-06-18 16:11:11,326 INFO ]: Without dead ends: 15 [2018-06-18 16:11:11,327 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-06-18 16:11:11,327 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-18 16:11:11,329 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-18 16:11:11,329 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-18 16:11:11,331 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-18 16:11:11,331 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-18 16:11:11,331 INFO ]: Finished accepts. word is rejected. [2018-06-18 16:11:11,331 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-18 16:11:11,331 INFO ]: Interpolant automaton has 9 states. [2018-06-18 16:11:11,331 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-18 16:11:11,332 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-18 16:11:11,332 INFO ]: Found error trace [2018-06-18 16:11:11,332 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:11:11,332 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:11:11,332 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-18 16:11:11,332 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:11:11,332 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:11:11,333 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:11,333 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 16:11:11,333 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:11,445 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:11,446 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:11:11,689 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 16:11:11,689 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 16:11:11,690 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) [2018-06-18 16:11:11,711 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 16:11:11,842 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-18 16:11:11,842 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:11,850 INFO ]: Computing forward predicates... [2018-06-18 16:11:12,296 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 16:11:12,316 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 16:11:12,316 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-06-18 16:11:12,316 INFO ]: Interpolant automaton has 13 states [2018-06-18 16:11:12,316 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-18 16:11:12,317 INFO ]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-06-18 16:11:12,317 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 13 states. [2018-06-18 16:11:12,605 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 16:11:12,605 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-18 16:11:12,605 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-18 16:11:12,606 INFO ]: Start accepts. Automaton has 13 states. Word has length 17 [2018-06-18 16:11:12,606 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 16:11:12,606 INFO ]: With dead ends: 19 [2018-06-18 16:11:12,606 INFO ]: Without dead ends: 19 [2018-06-18 16:11:12,607 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2018-06-18 16:11:12,607 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-18 16:11:12,611 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-18 16:11:12,611 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-18 16:11:12,612 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-18 16:11:12,612 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 17 [2018-06-18 16:11:12,612 INFO ]: Finished accepts. word is rejected. [2018-06-18 16:11:12,612 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-18 16:11:12,612 INFO ]: Interpolant automaton has 13 states. [2018-06-18 16:11:12,612 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-18 16:11:12,613 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-18 16:11:12,613 INFO ]: Found error trace [2018-06-18 16:11:12,613 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:11:12,613 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:11:12,613 INFO ]: Analyzing trace with hash -434924750, now seen corresponding path program 3 times [2018-06-18 16:11:12,613 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:11:12,613 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:11:12,614 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:12,614 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 16:11:12,614 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:12,843 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:12,849 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:11:13,319 WARN ]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-18 16:11:13,657 WARN ]: Spent 259.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 16 [2018-06-18 16:11:13,886 WARN ]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 24 [2018-06-18 16:11:14,062 WARN ]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 23 [2018-06-18 16:11:14,378 WARN ]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 8 [2018-06-18 16:11:14,393 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-18 16:11:14,393 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 16:11:14,393 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 16:11:14,410 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-18 16:11:14,609 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-06-18 16:11:14,609 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:14,617 INFO ]: Computing forward predicates... [2018-06-18 16:11:15,008 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-18 16:11:15,031 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 16:11:15,031 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2018-06-18 16:11:15,031 INFO ]: Interpolant automaton has 21 states [2018-06-18 16:11:15,032 INFO ]: Constructing interpolant automaton starting with 21 interpolants. [2018-06-18 16:11:15,032 INFO ]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2018-06-18 16:11:15,032 INFO ]: Start difference. First operand 19 states and 20 transitions. Second operand 21 states. [2018-06-18 16:11:15,383 WARN ]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2018-06-18 16:11:15,611 WARN ]: Spent 195.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2018-06-18 16:11:15,789 WARN ]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2018-06-18 16:11:15,906 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 16:11:15,906 INFO ]: Finished difference Result 21 states and 22 transitions. [2018-06-18 16:11:15,908 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-18 16:11:15,908 INFO ]: Start accepts. Automaton has 21 states. Word has length 25 [2018-06-18 16:11:15,908 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 16:11:15,909 INFO ]: With dead ends: 21 [2018-06-18 16:11:15,909 INFO ]: Without dead ends: 21 [2018-06-18 16:11:15,910 INFO ]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2018-06-18 16:11:15,910 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-18 16:11:15,914 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-18 16:11:15,914 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-18 16:11:15,914 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-06-18 16:11:15,915 INFO ]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 25 [2018-06-18 16:11:15,915 INFO ]: Finished accepts. word is rejected. [2018-06-18 16:11:15,915 INFO ]: Abstraction has 21 states and 22 transitions. [2018-06-18 16:11:15,915 INFO ]: Interpolant automaton has 21 states. [2018-06-18 16:11:15,915 INFO ]: Start isEmpty. Operand 21 states and 22 transitions. [2018-06-18 16:11:15,916 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-18 16:11:15,916 INFO ]: Found error trace [2018-06-18 16:11:15,916 INFO ]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:11:15,916 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:11:15,916 INFO ]: Analyzing trace with hash 1986427350, now seen corresponding path program 4 times [2018-06-18 16:11:15,916 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:11:15,916 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:11:15,917 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:15,917 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 16:11:15,917 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:16,173 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:16,174 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:11:16,787 WARN ]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-18 16:11:16,978 WARN ]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 24 [2018-06-18 16:11:17,306 WARN ]: Spent 275.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 23 [2018-06-18 16:11:17,457 WARN ]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 20 [2018-06-18 16:11:17,727 WARN ]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 16 [2018-06-18 16:11:18,059 WARN ]: Spent 285.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 23 [2018-06-18 16:11:18,253 WARN ]: Spent 164.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 20 [2018-06-18 16:11:18,268 INFO ]: Checked inductivity of 55 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-18 16:11:18,268 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 16:11:18,268 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 16:11:18,281 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-18 16:11:18,506 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-18 16:11:18,506 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:18,515 INFO ]: Computing forward predicates... [2018-06-18 16:11:19,014 INFO ]: Checked inductivity of 55 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-06-18 16:11:19,042 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 16:11:19,042 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 23 [2018-06-18 16:11:19,042 INFO ]: Interpolant automaton has 23 states [2018-06-18 16:11:19,043 INFO ]: Constructing interpolant automaton starting with 23 interpolants. [2018-06-18 16:11:19,043 INFO ]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2018-06-18 16:11:19,043 INFO ]: Start difference. First operand 21 states and 22 transitions. Second operand 23 states. [2018-06-18 16:11:19,262 WARN ]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2018-06-18 16:11:19,517 WARN ]: Spent 132.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2018-06-18 16:11:19,679 WARN ]: Spent 123.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2018-06-18 16:11:19,868 WARN ]: Spent 158.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2018-06-18 16:11:20,035 WARN ]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-06-18 16:11:20,250 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 16:11:20,250 INFO ]: Finished difference Result 23 states and 24 transitions. [2018-06-18 16:11:20,251 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-18 16:11:20,252 INFO ]: Start accepts. Automaton has 23 states. Word has length 29 [2018-06-18 16:11:20,252 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 16:11:20,252 INFO ]: With dead ends: 23 [2018-06-18 16:11:20,252 INFO ]: Without dead ends: 23 [2018-06-18 16:11:20,253 INFO ]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=174, Invalid=696, Unknown=0, NotChecked=0, Total=870 [2018-06-18 16:11:20,253 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-18 16:11:20,257 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-06-18 16:11:20,257 INFO ]: Start removeUnreachable. Operand 23 states. [2018-06-18 16:11:20,258 INFO ]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-06-18 16:11:20,258 INFO ]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 29 [2018-06-18 16:11:20,258 INFO ]: Finished accepts. word is rejected. [2018-06-18 16:11:20,258 INFO ]: Abstraction has 23 states and 24 transitions. [2018-06-18 16:11:20,258 INFO ]: Interpolant automaton has 23 states. [2018-06-18 16:11:20,258 INFO ]: Start isEmpty. Operand 23 states and 24 transitions. [2018-06-18 16:11:20,259 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-18 16:11:20,259 INFO ]: Found error trace [2018-06-18 16:11:20,259 INFO ]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 16:11:20,259 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 16:11:20,259 INFO ]: Analyzing trace with hash 800064122, now seen corresponding path program 5 times [2018-06-18 16:11:20,259 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 16:11:20,259 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 16:11:20,262 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:20,262 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 16:11:20,262 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 16:11:20,609 INFO ]: Conjunction of SSA is unsat [2018-06-18 16:11:20,610 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 16:11:22,981 WARN ]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-18 16:11:35,349 WARN ]: Spent 11.82 s on a formula simplification. DAG size of input: 537 DAG size of output: 23 [2018-06-18 16:11:48,888 WARN ]: Spent 13.04 s on a formula simplification. DAG size of input: 327 DAG size of output: 23 [2018-06-18 16:11:51,662 WARN ]: Spent 2.51 s on a formula simplification. DAG size of input: 607 DAG size of output: 23 [2018-06-18 16:11:52,516 WARN ]: Spent 627.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 17 [2018-06-18 16:11:54,249 WARN ]: Spent 1.46 s on a formula simplification. DAG size of input: 659 DAG size of output: 17 [2018-06-18 16:11:55,605 WARN ]: Spent 1.00 s on a formula simplification. DAG size of input: 657 DAG size of output: 15 [2018-06-18 16:11:58,034 WARN ]: Spent 2.17 s on a formula simplification. DAG size of input: 526 DAG size of output: 10 [2018-06-18 16:12:04,805 WARN ]: Spent 6.14 s on a formula simplification. DAG size of input: 810 DAG size of output: 17 [2018-06-18 16:12:14,211 WARN ]: Spent 8.81 s on a formula simplification. DAG size of input: 690 DAG size of output: 17 Received shutdown request... [2018-06-18 16:12:16,566 WARN ]: Removed 2 from assertion stack [2018-06-18 16:12:16,566 WARN ]: Verification canceled [2018-06-18 16:12:16,571 WARN ]: Timeout [2018-06-18 16:12:16,571 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 04:12:16 BoogieIcfgContainer [2018-06-18 16:12:16,571 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 16:12:16,572 INFO ]: Toolchain (without parser) took 68535.75 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 251.7 MB in the beginning and 1.1 GB in the end (delta: -808.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-18 16:12:16,573 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. [2018-06-18 16:12:16,573 INFO ]: ChcToBoogie took 145.63 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. [2018-06-18 16:12:16,573 INFO ]: Boogie Preprocessor took 58.27 ms. Allocated memory is still 309.3 MB. Free memory was 247.8 MB in the beginning and 245.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 16:12:16,573 INFO ]: RCFGBuilder took 414.70 ms. Allocated memory is still 309.3 MB. Free memory was 245.8 MB in the beginning and 222.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 3.6 GB. [2018-06-18 16:12:16,573 INFO ]: TraceAbstraction took 67898.16 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 222.5 MB in the beginning and 1.1 GB in the end (delta: -837.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-18 16:12:16,575 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 145.63 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 58.27 ms. Allocated memory is still 309.3 MB. Free memory was 247.8 MB in the beginning and 245.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 414.70 ms. Allocated memory is still 309.3 MB. Free memory was 245.8 MB in the beginning and 222.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 67898.16 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 222.5 MB in the beginning and 1.1 GB in the end (delta: -837.7 MB). Peak memory consumption was 1.3 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 34 with TraceHistMax 7, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 355. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 67.8s OverallTime, 6 OverallIterations, 7 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 109 SDslu, 311 SDs, 0 SdLazy, 248 SolverSat, 142 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=5, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 27996 SizeOfPredicates, 104 NumberOfNonLiveVariables, 3548 ConjunctsInSsa, 134 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 61/208 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_3_e3_1275_e4_164.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_16-12-16-588.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/metros_3_e3_1275_e4_164.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_16-12-16-588.csv Completed graceful shutdown