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_No_Goto.epf -i /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_9_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 13:22:33,217 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 13:22:33,219 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 13:22:33,231 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 13:22:33,231 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 13:22:33,232 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 13:22:33,233 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 13:22:33,237 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 13:22:33,239 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 13:22:33,240 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 13:22:33,241 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 13:22:33,241 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 13:22:33,242 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 13:22:33,243 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 13:22:33,244 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 13:22:33,244 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 13:22:33,248 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 13:22:33,250 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 13:22:33,253 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 13:22:33,254 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 13:22:33,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 13:22:33,258 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 13:22:33,258 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 13:22:33,258 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 13:22:33,259 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 13:22:33,260 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 13:22:33,261 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 13:22:33,261 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 13:22:33,262 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 13:22:33,263 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 13:22:33,263 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 13:22:33,264 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 13:22:33,264 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 13:22:33,265 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 13:22:33,265 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 13:22:33,266 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 13:22:33,279 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 13:22:33,279 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 13:22:33,279 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 13:22:33,280 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 13:22:33,281 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 13:22:33,281 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 13:22:33,281 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 13:22:33,281 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 13:22:33,282 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 13:22:33,282 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 13:22:33,282 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 13:22:33,282 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 13:22:33,283 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 13:22:33,283 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 13:22:33,283 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 13:22:33,283 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 13:22:33,283 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 13:22:33,284 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 13:22:33,284 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 13:22:33,285 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 13:22:33,285 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 13:22:33,329 INFO ]: Repository-Root is: /tmp [2018-06-22 13:22:33,343 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 13:22:33,349 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 13:22:33,351 INFO ]: Initializing SmtParser... [2018-06-22 13:22:33,351 INFO ]: SmtParser initialized [2018-06-22 13:22:33,352 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_9_validity.smt2 [2018-06-22 13:22:33,354 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 13:22:33,446 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_9_validity.smt2 unknown [2018-06-22 13:22:33,992 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_9_validity.smt2 [2018-06-22 13:22:33,997 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 13:22:34,002 INFO ]: Walking toolchain with 4 elements. [2018-06-22 13:22:34,002 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 13:22:34,002 INFO ]: Initializing ChcToBoogie... [2018-06-22 13:22:34,003 INFO ]: ChcToBoogie initialized [2018-06-22 13:22:34,006 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:22:33" (1/1) ... [2018-06-22 13:22:34,066 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34 Unit [2018-06-22 13:22:34,066 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 13:22:34,067 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 13:22:34,067 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 13:22:34,067 INFO ]: Boogie Preprocessor initialized [2018-06-22 13:22:34,089 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34" (1/1) ... [2018-06-22 13:22:34,089 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34" (1/1) ... [2018-06-22 13:22:34,104 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34" (1/1) ... [2018-06-22 13:22:34,104 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34" (1/1) ... [2018-06-22 13:22:34,122 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34" (1/1) ... [2018-06-22 13:22:34,124 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34" (1/1) ... [2018-06-22 13:22:34,128 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34" (1/1) ... [2018-06-22 13:22:34,143 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 13:22:34,144 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 13:22:34,144 INFO ]: Initializing RCFGBuilder... [2018-06-22 13:22:34,144 INFO ]: RCFGBuilder initialized [2018-06-22 13:22:34,145 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34" (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 13:22:34,156 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 13:22:34,156 INFO ]: Found specification of procedure False [2018-06-22 13:22:34,156 INFO ]: Found implementation of procedure False [2018-06-22 13:22:34,156 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 13:22:34,156 INFO ]: Found specification of procedure invariant [2018-06-22 13:22:34,156 INFO ]: Found implementation of procedure invariant [2018-06-22 13:22:34,156 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 13:22:34,156 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 13:22:34,156 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 13:22:34,529 INFO ]: Using library mode [2018-06-22 13:22:34,530 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:22:34 BoogieIcfgContainer [2018-06-22 13:22:34,530 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 13:22:34,534 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 13:22:34,535 INFO ]: Initializing TraceAbstraction... [2018-06-22 13:22:34,540 INFO ]: TraceAbstraction initialized [2018-06-22 13:22:34,540 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:22:33" (1/3) ... [2018-06-22 13:22:34,541 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fbe14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:22:34, skipping insertion in model container [2018-06-22 13:22:34,541 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:22:34" (2/3) ... [2018-06-22 13:22:34,541 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fbe14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:22:34, skipping insertion in model container [2018-06-22 13:22:34,541 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:22:34" (3/3) ... [2018-06-22 13:22:34,544 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 13:22:34,554 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 13:22:34,564 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 13:22:34,605 INFO ]: Using default assertion order modulation [2018-06-22 13:22:34,605 INFO ]: Interprodecural is true [2018-06-22 13:22:34,605 INFO ]: Hoare is false [2018-06-22 13:22:34,605 INFO ]: Compute interpolants for FPandBP [2018-06-22 13:22:34,605 INFO ]: Backedges is TWOTRACK [2018-06-22 13:22:34,605 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 13:22:34,605 INFO ]: Difference is false [2018-06-22 13:22:34,605 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 13:22:34,605 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 13:22:34,618 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 13:22:34,628 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 13:22:34,628 INFO ]: Found error trace [2018-06-22 13:22:34,629 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:22:34,629 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:22:34,634 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 13:22:34,637 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:22:34,637 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:22:34,673 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:22:34,673 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:22:34,673 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:22:34,773 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:22:34,985 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 13:22:34,987 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 13:22:34,987 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 13:22:34,989 INFO ]: Interpolant automaton has 4 states [2018-06-22 13:22:35,001 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 13:22:35,001 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:22:35,003 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 13:22:35,164 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:22:35,164 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 13:22:35,168 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 13:22:35,169 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 13:22:35,170 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:22:35,185 INFO ]: With dead ends: 13 [2018-06-22 13:22:35,185 INFO ]: Without dead ends: 13 [2018-06-22 13:22:35,189 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:22:35,207 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 13:22:35,241 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 13:22:35,242 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 13:22:35,246 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 13:22:35,247 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 13:22:35,247 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:22:35,247 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 13:22:35,247 INFO ]: Interpolant automaton has 4 states. [2018-06-22 13:22:35,247 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 13:22:35,249 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 13:22:35,249 INFO ]: Found error trace [2018-06-22 13:22:35,249 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:22:35,249 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:22:35,249 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 13:22:35,249 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:22:35,249 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:22:35,251 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:22:35,251 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:22:35,251 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:22:35,414 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:22:35,848 WARN ]: Spent 197.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-06-22 13:22:35,980 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:22:35,980 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:22:35,980 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 13:22:35,987 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:22:36,151 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:22:36,167 INFO ]: Computing forward predicates... Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown