java -Xss1g -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/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_two_faults.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 04:03:10,272 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 04:03:10,274 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 04:03:10,293 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 04:03:10,294 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 04:03:10,295 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 04:03:10,300 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 04:03:10,316 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 04:03:10,318 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 04:03:10,327 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 04:03:10,328 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 04:03:10,328 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 04:03:10,329 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 04:03:10,333 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 04:03:10,334 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 04:03:10,335 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 04:03:10,337 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 04:03:10,339 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 04:03:10,341 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 04:03:10,342 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 04:03:10,343 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 04:03:10,346 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 04:03:10,346 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 04:03:10,347 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 04:03:10,347 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 04:03:10,348 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 04:03:10,349 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 04:03:10,350 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 04:03:10,351 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 04:03:10,351 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 04:03:10,352 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 04:03:10,353 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 04:03:10,353 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 04:03:10,354 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 04:03:10,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 04:03:10,355 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 04:03:10,369 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 04:03:10,370 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 04:03:10,370 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 04:03:10,370 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 04:03:10,371 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 04:03:10,372 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 04:03:10,372 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 04:03:10,372 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 04:03:10,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 04:03:10,372 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 04:03:10,373 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 04:03:10,373 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 04:03:10,373 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 04:03:10,373 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 04:03:10,373 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 04:03:10,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 04:03:10,374 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 04:03:10,375 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 04:03:10,376 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 04:03:10,430 INFO ]: Repository-Root is: /tmp [2018-06-22 04:03:10,450 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 04:03:10,457 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 04:03:10,459 INFO ]: Initializing SmtParser... [2018-06-22 04:03:10,459 INFO ]: SmtParser initialized [2018-06-22 04:03:10,460 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_two_faults.smt2 [2018-06-22 04:03:10,462 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 [2018-06-22 04:03:10,560 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_two_faults.smt2 unknown [2018-06-22 04:03:11,289 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_two_faults.smt2 [2018-06-22 04:03:11,299 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 04:03:11,305 INFO ]: Walking toolchain with 4 elements. [2018-06-22 04:03:11,305 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 04:03:11,305 INFO ]: Initializing ChcToBoogie... [2018-06-22 04:03:11,306 INFO ]: ChcToBoogie initialized [2018-06-22 04:03:11,309 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:03:11" (1/1) ... [2018-06-22 04:03:11,399 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11 Unit [2018-06-22 04:03:11,399 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 04:03:11,400 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 04:03:11,400 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 04:03:11,400 INFO ]: Boogie Preprocessor initialized [2018-06-22 04:03:11,422 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11" (1/1) ... [2018-06-22 04:03:11,422 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11" (1/1) ... [2018-06-22 04:03:11,440 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11" (1/1) ... [2018-06-22 04:03:11,441 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11" (1/1) ... [2018-06-22 04:03:11,456 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11" (1/1) ... [2018-06-22 04:03:11,458 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11" (1/1) ... [2018-06-22 04:03:11,460 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11" (1/1) ... [2018-06-22 04:03:11,463 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 04:03:11,464 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 04:03:11,464 INFO ]: Initializing RCFGBuilder... [2018-06-22 04:03:11,464 INFO ]: RCFGBuilder initialized [2018-06-22 04:03:11,474 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11" (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 [2018-06-22 04:03:11,487 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 04:03:11,487 INFO ]: Found specification of procedure gotoProc [2018-06-22 04:03:11,487 INFO ]: Found implementation of procedure gotoProc [2018-06-22 04:03:11,487 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 04:03:11,488 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 04:03:11,488 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 04:03:11,911 INFO ]: Using library mode [2018-06-22 04:03:11,912 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:03:11 BoogieIcfgContainer [2018-06-22 04:03:11,914 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 04:03:11,916 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 04:03:11,916 INFO ]: Initializing TraceAbstraction... [2018-06-22 04:03:11,919 INFO ]: TraceAbstraction initialized [2018-06-22 04:03:11,919 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:03:11" (1/3) ... [2018-06-22 04:03:11,920 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e244cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 04:03:11, skipping insertion in model container [2018-06-22 04:03:11,920 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:03:11" (2/3) ... [2018-06-22 04:03:11,921 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e244cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:03:11, skipping insertion in model container [2018-06-22 04:03:11,921 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:03:11" (3/3) ... [2018-06-22 04:03:11,923 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 04:03:11,933 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 04:03:11,945 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 04:03:11,986 INFO ]: Using default assertion order modulation [2018-06-22 04:03:11,987 INFO ]: Interprodecural is true [2018-06-22 04:03:11,987 INFO ]: Hoare is false [2018-06-22 04:03:11,987 INFO ]: Compute interpolants for FPandBP [2018-06-22 04:03:11,987 INFO ]: Backedges is TWOTRACK [2018-06-22 04:03:11,987 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 04:03:11,987 INFO ]: Difference is false [2018-06-22 04:03:11,987 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 04:03:11,987 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 04:03:11,999 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 04:03:12,011 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 04:03:12,012 INFO ]: Found error trace [2018-06-22 04:03:12,012 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:03:12,013 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:03:12,016 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 04:03:12,018 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:03:12,018 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:03:12,054 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:03:12,054 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:03:12,054 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:03:12,158 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:03:12,324 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:03:12,326 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 04:03:12,327 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 04:03:12,328 INFO ]: Interpolant automaton has 3 states [2018-06-22 04:03:12,344 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 04:03:12,345 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:03:12,347 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 04:03:12,414 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:03:12,414 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 04:03:12,414 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 04:03:12,416 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 04:03:12,416 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:03:12,422 INFO ]: With dead ends: 9 [2018-06-22 04:03:12,422 INFO ]: Without dead ends: 9 [2018-06-22 04:03:12,424 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 [2018-06-22 04:03:12,436 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 04:03:12,459 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 04:03:12,461 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 04:03:12,461 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 04:03:12,463 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 04:03:12,463 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:03:12,463 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 04:03:12,463 INFO ]: Interpolant automaton has 3 states. [2018-06-22 04:03:12,463 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 04:03:12,463 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 04:03:12,464 INFO ]: Found error trace [2018-06-22 04:03:12,464 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:03:12,464 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:03:12,464 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 04:03:12,464 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:03:12,464 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:03:12,465 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:03:12,465 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:03:12,465 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:03:12,577 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:03:12,866 WARN ]: Spent 110.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 4 [2018-06-22 04:03:12,867 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:03:12,867 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:03:12,867 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 [2018-06-22 04:03:12,883 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:03:13,053 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:03:13,063 INFO ]: Computing forward predicates... [2018-06-22 04:03:13,843 WARN ]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-06-22 04:03:13,845 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:03:13,871 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:03:13,871 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 04:03:13,872 INFO ]: Interpolant automaton has 6 states [2018-06-22 04:03:13,872 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 04:03:13,872 INFO ]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:03:13,872 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 04:03:14,056 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:03:14,057 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 04:03:14,058 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 04:03:14,058 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 04:03:14,058 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:03:14,059 INFO ]: With dead ends: 11 [2018-06-22 04:03:14,059 INFO ]: Without dead ends: 11 [2018-06-22 04:03:14,060 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:03:14,060 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 04:03:14,061 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 04:03:14,061 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 04:03:14,061 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 04:03:14,061 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 04:03:14,061 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:03:14,061 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 04:03:14,061 INFO ]: Interpolant automaton has 6 states. [2018-06-22 04:03:14,061 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 04:03:14,062 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 04:03:14,062 INFO ]: Found error trace [2018-06-22 04:03:14,062 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:03:14,062 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:03:14,062 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 2 times [2018-06-22 04:03:14,062 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:03:14,062 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:03:14,063 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:03:14,063 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:03:14,064 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:03:14,356 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:03:17,709 WARN ]: Spent 2.27 s on a formula simplification. DAG size of input: 269 DAG size of output: 53 [2018-06-22 04:03:26,870 WARN ]: Spent 9.09 s on a formula simplification. DAG size of input: 437 DAG size of output: 289 [2018-06-22 04:03:33,393 WARN ]: Spent 6.37 s on a formula simplification. DAG size of input: 520 DAG size of output: 181 [2018-06-22 04:03:34,762 WARN ]: Spent 1.22 s on a formula simplification. DAG size of input: 243 DAG size of output: 63 [2018-06-22 04:03:34,777 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:03:34,777 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:03:34,777 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 [2018-06-22 04:03:34,811 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 04:03:35,094 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 04:03:35,094 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:03:35,106 INFO ]: Computing forward predicates... [2018-06-22 04:03:37,880 WARN ]: Spent 1.07 s on a formula simplification. DAG size of input: 165 DAG size of output: 46 [2018-06-22 04:04:00,067 WARN ]: expecting exponential blowup for input size 11 Received shutdown request... [2018-06-22 04:04:11,627 INFO ]: Timeout while computing interpolants [2018-06-22 04:04:11,828 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:04:11,828 WARN ]: Verification canceled [2018-06-22 04:04:11,834 WARN ]: Timeout [2018-06-22 04:04:11,834 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:04:11 BoogieIcfgContainer [2018-06-22 04:04:11,835 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 04:04:11,836 INFO ]: Toolchain (without parser) took 60537.01 ms. Allocated memory was 303.0 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 249.6 MB in the beginning and 1.2 GB in the end (delta: -903.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 3.6 GB. [2018-06-22 04:04:11,837 INFO ]: SmtParser took 0.13 ms. Allocated memory is still 303.0 MB. Free memory is still 267.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 04:04:11,838 INFO ]: ChcToBoogie took 94.04 ms. Allocated memory is still 303.0 MB. Free memory was 249.6 MB in the beginning and 247.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:04:11,838 INFO ]: Boogie Preprocessor took 63.59 ms. Allocated memory is still 303.0 MB. Free memory was 247.6 MB in the beginning and 245.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:04:11,847 INFO ]: RCFGBuilder took 450.07 ms. Allocated memory is still 303.0 MB. Free memory was 245.6 MB in the beginning and 223.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 3.6 GB. [2018-06-22 04:04:11,847 INFO ]: TraceAbstraction took 59919.66 ms. Allocated memory was 303.0 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 223.6 MB in the beginning and 1.2 GB in the end (delta: -929.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 3.6 GB. [2018-06-22 04:04:11,856 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.13 ms. Allocated memory is still 303.0 MB. Free memory is still 267.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 94.04 ms. Allocated memory is still 303.0 MB. Free memory was 249.6 MB in the beginning and 247.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 63.59 ms. Allocated memory is still 303.0 MB. Free memory was 247.6 MB in the beginning and 245.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 450.07 ms. Allocated memory is still 303.0 MB. Free memory was 245.6 MB in the beginning and 223.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 59919.66 ms. Allocated memory was 303.0 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 223.6 MB in the beginning and 1.2 GB in the end (delta: -929.5 MB). Peak memory consumption was 1.9 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 11 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was transforming 11 conjuction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 59.8s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 285 SizeOfPredicates, 1 NumberOfNonLiveVariables, 348 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/om1_with_relays_validity_two_faults.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_04-04-11-867.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_validity_two_faults.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_04-04-11-867.csv Completed graceful shutdown