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_4_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 12:12:24,059 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 12:12:24,062 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 12:12:24,073 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 12:12:24,073 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 12:12:24,074 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 12:12:24,076 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 12:12:24,078 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 12:12:24,080 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 12:12:24,080 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 12:12:24,081 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 12:12:24,081 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 12:12:24,082 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 12:12:24,084 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 12:12:24,084 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 12:12:24,085 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 12:12:24,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 12:12:24,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 12:12:24,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 12:12:24,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 12:12:24,093 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 12:12:24,095 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 12:12:24,096 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 12:12:24,096 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 12:12:24,097 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 12:12:24,098 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 12:12:24,099 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 12:12:24,100 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 12:12:24,101 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 12:12:24,101 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 12:12:24,102 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 12:12:24,103 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 12:12:24,103 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 12:12:24,104 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 12:12:24,104 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 12:12:24,105 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 12:12:24,118 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 12:12:24,118 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 12:12:24,119 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 12:12:24,119 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 12:12:24,120 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 12:12:24,121 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 12:12:24,121 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 12:12:24,121 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 12:12:24,121 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 12:12:24,122 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 12:12:24,122 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 12:12:24,122 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 12:12:24,122 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 12:12:24,123 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 12:12:24,123 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 12:12:24,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 12:12:24,123 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 12:12:24,125 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 12:12:24,125 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 12:12:24,171 INFO ]: Repository-Root is: /tmp [2018-06-18 12:12:24,189 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 12:12:24,195 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 12:12:24,196 INFO ]: Initializing SmtParser... [2018-06-18 12:12:24,197 INFO ]: SmtParser initialized [2018-06-18 12:12:24,197 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_validity.smt2 [2018-06-18 12:12:24,199 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 12:12:24,290 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_validity.smt2 unknown [2018-06-18 12:12:24,612 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_validity.smt2 [2018-06-18 12:12:24,617 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 12:12:24,623 INFO ]: Walking toolchain with 4 elements. [2018-06-18 12:12:24,623 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 12:12:24,623 INFO ]: Initializing ChcToBoogie... [2018-06-18 12:12:24,624 INFO ]: ChcToBoogie initialized [2018-06-18 12:12:24,631 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:12:24" (1/1) ... [2018-06-18 12:12:24,780 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24 Unit [2018-06-18 12:12:24,781 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 12:12:24,781 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 12:12:24,781 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 12:12:24,781 INFO ]: Boogie Preprocessor initialized [2018-06-18 12:12:24,804 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24" (1/1) ... [2018-06-18 12:12:24,804 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24" (1/1) ... [2018-06-18 12:12:24,830 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24" (1/1) ... [2018-06-18 12:12:24,830 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24" (1/1) ... [2018-06-18 12:12:24,845 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24" (1/1) ... [2018-06-18 12:12:24,846 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24" (1/1) ... [2018-06-18 12:12:24,859 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24" (1/1) ... [2018-06-18 12:12:24,869 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 12:12:24,870 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 12:12:24,870 INFO ]: Initializing RCFGBuilder... [2018-06-18 12:12:24,870 INFO ]: RCFGBuilder initialized [2018-06-18 12:12:24,872 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24" (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 12:12:24,884 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 12:12:24,884 INFO ]: Found specification of procedure False [2018-06-18 12:12:24,884 INFO ]: Found implementation of procedure False [2018-06-18 12:12:24,884 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-18 12:12:24,884 INFO ]: Found specification of procedure invariant [2018-06-18 12:12:24,884 INFO ]: Found implementation of procedure invariant [2018-06-18 12:12:24,884 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 12:12:24,884 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 12:12:24,884 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 12:12:25,291 INFO ]: Using library mode [2018-06-18 12:12:25,291 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:12:25 BoogieIcfgContainer [2018-06-18 12:12:25,291 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 12:12:25,293 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 12:12:25,293 INFO ]: Initializing TraceAbstraction... [2018-06-18 12:12:25,302 INFO ]: TraceAbstraction initialized [2018-06-18 12:12:25,302 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:12:24" (1/3) ... [2018-06-18 12:12:25,303 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c713313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 12:12:25, skipping insertion in model container [2018-06-18 12:12:25,303 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:12:24" (2/3) ... [2018-06-18 12:12:25,303 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c713313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 12:12:25, skipping insertion in model container [2018-06-18 12:12:25,303 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:12:25" (3/3) ... [2018-06-18 12:12:25,307 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 12:12:25,317 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 12:12:25,326 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 12:12:25,379 INFO ]: Using default assertion order modulation [2018-06-18 12:12:25,382 INFO ]: Interprodecural is true [2018-06-18 12:12:25,382 INFO ]: Hoare is false [2018-06-18 12:12:25,382 INFO ]: Compute interpolants for FPandBP [2018-06-18 12:12:25,382 INFO ]: Backedges is TWOTRACK [2018-06-18 12:12:25,382 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 12:12:25,382 INFO ]: Difference is false [2018-06-18 12:12:25,382 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 12:12:25,382 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 12:12:25,401 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 12:12:25,424 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 12:12:25,424 INFO ]: Found error trace [2018-06-18 12:12:25,425 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:12:25,425 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:12:25,431 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-18 12:12:25,433 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:12:25,433 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:12:25,488 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:25,488 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:12:25,488 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:25,561 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:12:25,573 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:12:25,711 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 12:12:25,713 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 12:12:25,714 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 12:12:25,716 INFO ]: Interpolant automaton has 4 states [2018-06-18 12:12:25,731 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 12:12:25,732 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 12:12:25,734 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 12:12:25,878 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:12:25,878 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 12:12:25,879 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 12:12:25,881 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 12:12:25,881 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:12:25,896 INFO ]: With dead ends: 13 [2018-06-18 12:12:25,898 INFO ]: Without dead ends: 13 [2018-06-18 12:12:25,900 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 12:12:25,915 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 12:12:25,935 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 12:12:25,937 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 12:12:25,937 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 12:12:25,938 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 12:12:25,939 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:12:25,939 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 12:12:25,939 INFO ]: Interpolant automaton has 4 states. [2018-06-18 12:12:25,939 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 12:12:25,940 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 12:12:25,940 INFO ]: Found error trace [2018-06-18 12:12:25,940 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:12:25,940 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:12:25,941 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-18 12:12:25,941 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:12:25,941 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:12:25,942 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:25,942 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:12:25,942 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:26,016 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:12:26,017 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:12:26,356 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:12:26,357 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:12:26,357 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 12:12:26,366 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:12:26,476 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:12:26,488 INFO ]: Computing forward predicates... [2018-06-18 12:12:27,344 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:12:27,367 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 12:12:27,367 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-18 12:12:27,368 INFO ]: Interpolant automaton has 9 states [2018-06-18 12:12:27,368 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-18 12:12:27,368 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-18 12:12:27,368 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-18 12:12:27,940 WARN ]: Spent 137.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-18 12:12:27,977 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:12:27,978 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-18 12:12:27,980 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-18 12:12:27,980 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-18 12:12:27,980 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:12:27,980 INFO ]: With dead ends: 17 [2018-06-18 12:12:27,980 INFO ]: Without dead ends: 17 [2018-06-18 12:12:27,981 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-18 12:12:27,981 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-18 12:12:27,986 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-18 12:12:27,986 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-18 12:12:27,986 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-18 12:12:27,987 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-18 12:12:27,987 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:12:27,987 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-18 12:12:27,987 INFO ]: Interpolant automaton has 9 states. [2018-06-18 12:12:27,987 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-18 12:12:27,987 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-18 12:12:27,987 INFO ]: Found error trace [2018-06-18 12:12:27,987 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:12:27,988 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:12:27,988 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 2 times [2018-06-18 12:12:27,988 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:12:27,988 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:12:27,990 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:27,990 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:12:27,990 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:12:28,580 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:12:28,581 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:12:29,359 ERROR]: Could not assert interpolant [2018-06-18 12:12:29,372 ERROR]: Interpolant 11 not inductive: (Check returned sat) [2018-06-18 12:12:29,375 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 12:12:29,380 INFO ]: Toolchain (without parser) took 4762.36 ms. Allocated memory was 302.5 MB in the beginning and 358.1 MB in the end (delta: 55.6 MB). Free memory was 251.8 MB in the beginning and 269.8 MB in the end (delta: -17.9 MB). Peak memory consumption was 107.1 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:29,385 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 302.5 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 12:12:29,385 INFO ]: ChcToBoogie took 157.54 ms. Allocated memory is still 302.5 MB. Free memory was 250.8 MB in the beginning and 239.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:29,386 INFO ]: Boogie Preprocessor took 88.21 ms. Allocated memory is still 302.5 MB. Free memory was 239.9 MB in the beginning and 238.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:29,386 INFO ]: RCFGBuilder took 421.40 ms. Allocated memory is still 302.5 MB. Free memory was 237.8 MB in the beginning and 220.7 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:29,387 INFO ]: TraceAbstraction took 4086.06 ms. Allocated memory was 302.5 MB in the beginning and 358.1 MB in the end (delta: 55.6 MB). Free memory was 220.7 MB in the beginning and 269.8 MB in the end (delta: -49.1 MB). Peak memory consumption was 75.9 MB. Max. memory is 3.6 GB. [2018-06-18 12:12:29,392 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 302.5 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 157.54 ms. Allocated memory is still 302.5 MB. Free memory was 250.8 MB in the beginning and 239.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 88.21 ms. Allocated memory is still 302.5 MB. Free memory was 239.9 MB in the beginning and 238.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 3.6 GB. * RCFGBuilder took 421.40 ms. Allocated memory is still 302.5 MB. Free memory was 237.8 MB in the beginning and 220.7 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 4086.06 ms. Allocated memory was 302.5 MB in the beginning and 358.1 MB in the end (delta: 55.6 MB). Free memory was 220.7 MB in the beginning and 269.8 MB in the end (delta: -49.1 MB). Peak memory consumption was 75.9 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_4_validity.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_12-12-29-411.csv Received shutdown request...