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_3_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 12:12:09,929 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 12:12:09,974 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 12:12:09,987 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 12:12:09,988 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 12:12:09,989 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 12:12:09,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 12:12:09,992 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 12:12:09,993 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 12:12:09,994 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 12:12:09,997 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 12:12:09,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 12:12:09,998 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 12:12:10,000 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 12:12:10,002 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 12:12:10,003 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 12:12:10,005 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 12:12:10,018 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 12:12:10,020 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 12:12:10,021 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 12:12:10,022 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 12:12:10,024 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 12:12:10,025 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 12:12:10,025 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 12:12:10,026 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 12:12:10,027 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 12:12:10,027 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 12:12:10,028 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 12:12:10,029 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 12:12:10,029 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 12:12:10,030 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 12:12:10,031 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 12:12:10,031 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 12:12:10,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 12:12:10,032 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 12:12:10,032 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 12:12:10,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 12:12:10,067 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 12:12:10,067 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 12:12:10,068 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 12:12:10,070 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 12:12:10,073 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 12:12:10,074 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 12:12:10,074 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 12:12:10,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 12:12:10,074 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 12:12:10,074 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 12:12:10,075 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 12:12:10,075 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 12:12:10,075 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 12:12:10,075 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 12:12:10,075 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 12:12:10,075 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 12:12:10,078 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 12:12:10,078 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 12:12:10,130 INFO ]: Repository-Root is: /tmp [2018-06-18 12:12:10,186 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 12:12:10,190 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 12:12:10,191 INFO ]: Initializing SmtParser... [2018-06-18 12:12:10,191 INFO ]: SmtParser initialized [2018-06-18 12:12:10,191 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_agreement.smt2 [2018-06-18 12:12:10,216 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 12:12:11,042 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_agreement.smt2 unknown [2018-06-18 12:12:11,726 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_agreement.smt2 [2018-06-18 12:12:11,732 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 12:12:11,738 INFO ]: Walking toolchain with 4 elements. [2018-06-18 12:12:11,738 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 12:12:11,738 INFO ]: Initializing ChcToBoogie... [2018-06-18 12:12:11,738 INFO ]: ChcToBoogie initialized [2018-06-18 12:12:11,745 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:12:11" (1/1) ... [2018-06-18 12:12:11,841 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11 Unit [2018-06-18 12:12:11,841 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 12:12:11,842 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 12:12:11,842 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 12:12:11,842 INFO ]: Boogie Preprocessor initialized [2018-06-18 12:12:11,879 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11" (1/1) ... [2018-06-18 12:12:11,879 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11" (1/1) ... [2018-06-18 12:12:11,897 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11" (1/1) ... [2018-06-18 12:12:11,897 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11" (1/1) ... [2018-06-18 12:12:11,907 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11" (1/1) ... [2018-06-18 12:12:11,908 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11" (1/1) ... [2018-06-18 12:12:11,910 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11" (1/1) ... [2018-06-18 12:12:11,922 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 12:12:11,922 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 12:12:11,922 INFO ]: Initializing RCFGBuilder... [2018-06-18 12:12:11,922 INFO ]: RCFGBuilder initialized [2018-06-18 12:12:11,923 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11" (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 [2018-06-18 12:12:11,949 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 12:12:11,949 INFO ]: Found specification of procedure False [2018-06-18 12:12:11,949 INFO ]: Found implementation of procedure False [2018-06-18 12:12:11,949 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-18 12:12:11,949 INFO ]: Found specification of procedure invariant [2018-06-18 12:12:11,949 INFO ]: Found implementation of procedure invariant [2018-06-18 12:12:11,949 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 12:12:11,949 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 12:12:11,949 INFO ]: Found implementation of procedure Ultimate.START [2018-06-18 12:12:12,848 INFO ]: Using library mode [2018-06-18 12:12:12,849 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:12:12 BoogieIcfgContainer [2018-06-18 12:12:12,849 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 12:12:12,850 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 12:12:12,850 INFO ]: Initializing TraceAbstraction... [2018-06-18 12:12:12,902 INFO ]: TraceAbstraction initialized [2018-06-18 12:12:12,902 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:12:11" (1/3) ... [2018-06-18 12:12:12,903 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d743c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 12:12:12, skipping insertion in model container [2018-06-18 12:12:12,903 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:11" (2/3) ... [2018-06-18 12:12:12,904 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d743c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 12:12:12, skipping insertion in model container [2018-06-18 12:12:12,904 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:12:12" (3/3) ... [2018-06-18 12:12:12,916 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 12:12:13,060 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 12:12:13,108 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 12:12:13,441 INFO ]: Using default assertion order modulation [2018-06-18 12:12:13,441 INFO ]: Interprodecural is true [2018-06-18 12:12:13,441 INFO ]: Hoare is false [2018-06-18 12:12:13,441 INFO ]: Compute interpolants for FPandBP [2018-06-18 12:12:13,441 INFO ]: Backedges is TWOTRACK [2018-06-18 12:12:13,441 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 12:12:13,441 INFO ]: Difference is false [2018-06-18 12:12:13,441 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 12:12:13,441 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 12:12:13,503 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 12:12:13,531 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 12:12:13,531 INFO ]: Found error trace [2018-06-18 12:12:13,549 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:12:13,549 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:12:13,553 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-18 12:12:13,554 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:12:13,554 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:12:13,623 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:13,623 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:12:13,623 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:13,730 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:12:13,762 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:12:13,896 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 12:12:13,899 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 12:12:13,899 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 12:12:13,901 INFO ]: Interpolant automaton has 4 states [2018-06-18 12:12:13,924 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 12:12:13,924 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 12:12:13,944 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 12:12:14,115 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:12:14,115 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 12:12:14,124 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 12:12:14,144 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 12:12:14,145 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:12:14,172 INFO ]: With dead ends: 13 [2018-06-18 12:12:14,172 INFO ]: Without dead ends: 13 [2018-06-18 12:12:14,174 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 12:12:14,258 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 12:12:14,291 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 12:12:14,293 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 12:12:14,293 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 12:12:14,294 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 12:12:14,295 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:12:14,296 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 12:12:14,296 INFO ]: Interpolant automaton has 4 states. [2018-06-18 12:12:14,297 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 12:12:14,298 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 12:12:14,298 INFO ]: Found error trace [2018-06-18 12:12:14,298 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:12:14,298 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:12:14,298 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-18 12:12:14,298 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:12:14,299 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:12:14,299 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:14,299 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:12:14,299 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:14,378 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:12:14,379 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:12:14,609 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:12:14,609 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:12:14,609 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 12:12:14,691 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:12:14,776 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:12:14,788 INFO ]: Computing forward predicates... [2018-06-18 12:12:15,420 WARN ]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-18 12:12:15,576 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:12:15,726 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 12:12:15,726 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-18 12:12:15,727 INFO ]: Interpolant automaton has 9 states [2018-06-18 12:12:15,727 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-18 12:12:15,727 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-18 12:12:15,728 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-18 12:12:16,294 WARN ]: Spent 312.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-18 12:12:16,322 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:12:16,322 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-18 12:12:16,323 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-18 12:12:16,323 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-18 12:12:16,324 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:12:16,324 INFO ]: With dead ends: 17 [2018-06-18 12:12:16,324 INFO ]: Without dead ends: 17 [2018-06-18 12:12:16,325 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-18 12:12:16,325 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-18 12:12:16,330 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-18 12:12:16,331 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-18 12:12:16,331 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-18 12:12:16,331 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-18 12:12:16,331 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:12:16,331 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-18 12:12:16,331 INFO ]: Interpolant automaton has 9 states. [2018-06-18 12:12:16,332 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-18 12:12:16,332 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-18 12:12:16,332 INFO ]: Found error trace [2018-06-18 12:12:16,332 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:12:16,332 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:12:16,332 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 2 times [2018-06-18 12:12:16,332 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:12:16,332 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:12:16,333 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:16,333 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:12:16,333 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:16,616 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:12:16,617 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:12:17,106 ERROR]: Could not assert interpolant [2018-06-18 12:12:17,110 ERROR]: Interpolant 11 not inductive: (Check returned sat) [2018-06-18 12:12:17,112 FATAL]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Asserted terms must be closed at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.assertTerm(SMTInterpol.java:654) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:959) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:210) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:228) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:410) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:425) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-06-18 12:12:17,135 INFO ]: Toolchain (without parser) took 5403.09 ms. Allocated memory is still 307.8 MB. Free memory was 258.2 MB in the beginning and 191.0 MB in the end (delta: 67.2 MB). Peak memory consumption was 67.2 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:17,136 INFO ]: SmtParser took 0.05 ms. Allocated memory is still 307.8 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 12:12:17,137 INFO ]: ChcToBoogie took 103.27 ms. Allocated memory is still 307.8 MB. Free memory was 258.2 MB in the beginning and 254.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:17,137 INFO ]: Boogie Preprocessor took 80.09 ms. Allocated memory is still 307.8 MB. Free memory was 254.2 MB in the beginning and 252.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:17,137 INFO ]: RCFGBuilder took 926.74 ms. Allocated memory is still 307.8 MB. Free memory was 252.2 MB in the beginning and 238.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:17,138 INFO ]: TraceAbstraction took 4284.29 ms. Allocated memory is still 307.8 MB. Free memory was 238.2 MB in the beginning and 191.0 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:17,150 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.05 ms. Allocated memory is still 307.8 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 103.27 ms. Allocated memory is still 307.8 MB. Free memory was 258.2 MB in the beginning and 254.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 80.09 ms. Allocated memory is still 307.8 MB. Free memory was 254.2 MB in the beginning and 252.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 926.74 ms. Allocated memory is still 307.8 MB. Free memory was 252.2 MB in the beginning and 238.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 4284.29 ms. Allocated memory is still 307.8 MB. Free memory was 238.2 MB in the beginning and 191.0 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Asserted terms must be closed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Asserted terms must be closed: de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.assertTerm(SMTInterpol.java:654) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_3_3_agreement.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_12-12-17-169.csv Received shutdown request...