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/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_6_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 12:13:38,626 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 12:13:38,628 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 12:13:38,641 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 12:13:38,641 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 12:13:38,642 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 12:13:38,643 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 12:13:38,646 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 12:13:38,648 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 12:13:38,649 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 12:13:38,649 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 12:13:38,650 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 12:13:38,650 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 12:13:38,652 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 12:13:38,653 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 12:13:38,654 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 12:13:38,655 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 12:13:38,657 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 12:13:38,665 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 12:13:38,666 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 12:13:38,667 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 12:13:38,669 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 12:13:38,670 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 12:13:38,670 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 12:13:38,671 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 12:13:38,671 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 12:13:38,672 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 12:13:38,673 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 12:13:38,674 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 12:13:38,674 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 12:13:38,675 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 12:13:38,675 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 12:13:38,676 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 12:13:38,676 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 12:13:38,677 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 12:13:38,677 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 12:13:38,690 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 12:13:38,690 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 12:13:38,690 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 12:13:38,690 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 12:13:38,692 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 12:13:38,692 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 12:13:38,692 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 12:13:38,692 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 12:13:38,693 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 12:13:38,693 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 12:13:38,693 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 12:13:38,693 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 12:13:38,693 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 12:13:38,693 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 12:13:38,694 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 12:13:38,694 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 12:13:38,694 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 12:13:38,695 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 12:13:38,696 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 12:13:38,750 INFO ]: Repository-Root is: /tmp [2018-06-18 12:13:38,763 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 12:13:38,768 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 12:13:38,770 INFO ]: Initializing SmtParser... [2018-06-18 12:13:38,770 INFO ]: SmtParser initialized [2018-06-18 12:13:38,771 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_6_validity.smt2 [2018-06-18 12:13:38,773 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 12:13:38,868 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_6_validity.smt2 unknown [2018-06-18 12:13:39,352 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_6_validity.smt2 [2018-06-18 12:13:39,359 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 12:13:39,365 INFO ]: Walking toolchain with 4 elements. [2018-06-18 12:13:39,365 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 12:13:39,365 INFO ]: Initializing ChcToBoogie... [2018-06-18 12:13:39,365 INFO ]: ChcToBoogie initialized [2018-06-18 12:13:39,372 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:13:39" (1/1) ... [2018-06-18 12:13:40,162 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40 Unit [2018-06-18 12:13:40,162 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 12:13:40,165 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 12:13:40,165 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 12:13:40,165 INFO ]: Boogie Preprocessor initialized [2018-06-18 12:13:40,188 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40" (1/1) ... [2018-06-18 12:13:40,188 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40" (1/1) ... [2018-06-18 12:13:40,250 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40" (1/1) ... [2018-06-18 12:13:40,250 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40" (1/1) ... [2018-06-18 12:13:40,339 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40" (1/1) ... [2018-06-18 12:13:40,341 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40" (1/1) ... [2018-06-18 12:13:40,386 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40" (1/1) ... [2018-06-18 12:13:40,415 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 12:13:40,417 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 12:13:40,417 INFO ]: Initializing RCFGBuilder... [2018-06-18 12:13:40,417 INFO ]: RCFGBuilder initialized [2018-06-18 12:13:40,418 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40" (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 12:13:40,435 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 12:13:40,435 INFO ]: Found specification of procedure False [2018-06-18 12:13:40,435 INFO ]: Found implementation of procedure False [2018-06-18 12:13:40,435 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-18 12:13:40,435 INFO ]: Found specification of procedure invariant [2018-06-18 12:13:40,435 INFO ]: Found implementation of procedure invariant [2018-06-18 12:13:40,435 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 12:13:40,436 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 12:13:40,436 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 12:13:41,416 INFO ]: Using library mode [2018-06-18 12:13:41,417 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:13:41 BoogieIcfgContainer [2018-06-18 12:13:41,417 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 12:13:41,418 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 12:13:41,418 INFO ]: Initializing TraceAbstraction... [2018-06-18 12:13:41,422 INFO ]: TraceAbstraction initialized [2018-06-18 12:13:41,422 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:13:39" (1/3) ... [2018-06-18 12:13:41,423 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f25553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 12:13:41, skipping insertion in model container [2018-06-18 12:13:41,423 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:13:40" (2/3) ... [2018-06-18 12:13:41,423 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f25553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 12:13:41, skipping insertion in model container [2018-06-18 12:13:41,423 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:13:41" (3/3) ... [2018-06-18 12:13:41,425 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 12:13:41,436 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 12:13:41,447 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 12:13:41,495 INFO ]: Using default assertion order modulation [2018-06-18 12:13:41,495 INFO ]: Interprodecural is true [2018-06-18 12:13:41,495 INFO ]: Hoare is false [2018-06-18 12:13:41,495 INFO ]: Compute interpolants for FPandBP [2018-06-18 12:13:41,495 INFO ]: Backedges is TWOTRACK [2018-06-18 12:13:41,495 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 12:13:41,495 INFO ]: Difference is false [2018-06-18 12:13:41,496 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 12:13:41,496 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 12:13:41,513 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 12:13:41,533 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 12:13:41,533 INFO ]: Found error trace [2018-06-18 12:13:41,534 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:13:41,534 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:13:41,540 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-18 12:13:41,541 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:13:41,542 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:13:41,594 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:13:41,594 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:13:41,594 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:13:41,676 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:13:41,685 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:13:41,792 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 12:13:41,793 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 12:13:41,793 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 12:13:41,795 INFO ]: Interpolant automaton has 4 states [2018-06-18 12:13:41,808 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 12:13:41,809 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 12:13:41,811 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 12:13:41,947 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:13:41,947 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 12:13:41,948 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 12:13:41,950 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 12:13:41,950 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:13:41,965 INFO ]: With dead ends: 13 [2018-06-18 12:13:41,965 INFO ]: Without dead ends: 13 [2018-06-18 12:13:41,968 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 12:13:41,987 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 12:13:42,018 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 12:13:42,020 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 12:13:42,020 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 12:13:42,022 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 12:13:42,022 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:13:42,022 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 12:13:42,022 INFO ]: Interpolant automaton has 4 states. [2018-06-18 12:13:42,022 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 12:13:42,024 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 12:13:42,024 INFO ]: Found error trace [2018-06-18 12:13:42,024 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:13:42,024 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:13:42,025 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-18 12:13:42,025 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:13:42,025 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:13:42,025 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:13:42,025 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:13:42,026 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:13:42,152 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:13:42,153 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:13:42,627 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:13:42,628 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:13:42,628 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 12:13:42,636 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:13:42,757 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:13:42,771 INFO ]: Computing forward predicates... Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown