java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_16_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 10:42:18,056 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 10:42:18,059 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 10:42:18,120 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 10:42:18,120 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 10:42:18,121 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 10:42:18,122 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 10:42:18,138 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 10:42:18,140 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 10:42:18,140 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 10:42:18,143 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 10:42:18,143 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 10:42:18,144 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 10:42:18,145 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 10:42:18,146 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 10:42:18,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 10:42:18,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 10:42:18,172 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 10:42:18,174 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 10:42:18,175 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 10:42:18,176 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 10:42:18,178 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-25 10:42:18,188 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 10:42:18,188 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 10:42:18,189 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 10:42:18,189 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 10:42:18,195 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 10:42:18,196 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 10:42:18,197 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 10:42:18,214 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 10:42:18,215 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 10:42:18,215 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 10:42:18,215 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 10:42:18,216 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 10:42:18,216 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 10:42:18,216 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 10:42:18,217 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 10:42:18,217 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 10:42:18,217 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 10:42:18,217 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 10:42:18,218 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 10:42:18,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 10:42:18,218 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 10:42:18,218 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 10:42:18,218 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 10:42:18,219 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 10:42:18,219 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 10:42:18,219 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 10:42:18,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 10:42:18,219 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 10:42:18,223 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 10:42:18,224 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 10:42:18,261 INFO ]: Repository-Root is: /tmp [2018-06-25 10:42:18,276 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 10:42:18,280 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 10:42:18,281 INFO ]: Initializing SmtParser... [2018-06-25 10:42:18,281 INFO ]: SmtParser initialized [2018-06-25 10:42:18,281 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_16_agreement.smt2 [2018-06-25 10:42:18,283 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 [2018-06-25 10:42:18,380 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_16_agreement.smt2 unknown [2018-06-25 10:42:19,015 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_16_agreement.smt2 [2018-06-25 10:42:19,019 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 10:42:19,025 INFO ]: Walking toolchain with 4 elements. [2018-06-25 10:42:19,026 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 10:42:19,026 INFO ]: Initializing ChcToBoogie... [2018-06-25 10:42:19,026 INFO ]: ChcToBoogie initialized [2018-06-25 10:42:19,029 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 10:42:19" (1/1) ... [2018-06-25 10:42:19,147 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19 Unit [2018-06-25 10:42:19,147 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 10:42:19,148 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 10:42:19,148 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 10:42:19,148 INFO ]: Boogie Preprocessor initialized [2018-06-25 10:42:19,162 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19" (1/1) ... [2018-06-25 10:42:19,162 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19" (1/1) ... [2018-06-25 10:42:19,175 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19" (1/1) ... [2018-06-25 10:42:19,176 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19" (1/1) ... [2018-06-25 10:42:19,194 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19" (1/1) ... [2018-06-25 10:42:19,196 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19" (1/1) ... [2018-06-25 10:42:19,200 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19" (1/1) ... [2018-06-25 10:42:19,207 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 10:42:19,208 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 10:42:19,208 INFO ]: Initializing RCFGBuilder... [2018-06-25 10:42:19,208 INFO ]: RCFGBuilder initialized [2018-06-25 10:42:19,209 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19" (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) [2018-06-25 10:42:19,219 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 10:42:19,219 INFO ]: Found specification of procedure gotoProc [2018-06-25 10:42:19,219 INFO ]: Found implementation of procedure gotoProc [2018-06-25 10:42:19,219 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 10:42:19,219 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 10:42:19,219 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 [2018-06-25 10:42:19,818 INFO ]: Using library mode [2018-06-25 10:42:19,819 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 10:42:19 BoogieIcfgContainer [2018-06-25 10:42:19,819 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 10:42:19,820 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 10:42:19,820 INFO ]: Initializing TraceAbstraction... [2018-06-25 10:42:19,825 INFO ]: TraceAbstraction initialized [2018-06-25 10:42:19,825 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 10:42:19" (1/3) ... [2018-06-25 10:42:19,826 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400d6ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 10:42:19, skipping insertion in model container [2018-06-25 10:42:19,826 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:42:19" (2/3) ... [2018-06-25 10:42:19,826 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400d6ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 10:42:19, skipping insertion in model container [2018-06-25 10:42:19,826 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 10:42:19" (3/3) ... [2018-06-25 10:42:19,828 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 10:42:19,837 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 10:42:19,845 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 10:42:19,897 INFO ]: Using default assertion order modulation [2018-06-25 10:42:19,898 INFO ]: Interprodecural is true [2018-06-25 10:42:19,898 INFO ]: Hoare is false [2018-06-25 10:42:19,898 INFO ]: Compute interpolants for FPandBP [2018-06-25 10:42:19,898 INFO ]: Backedges is TWOTRACK [2018-06-25 10:42:19,898 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 10:42:19,898 INFO ]: Difference is false [2018-06-25 10:42:19,898 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 10:42:19,898 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 10:42:19,914 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 10:42:19,927 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 10:42:19,928 INFO ]: Found error trace [2018-06-25 10:42:19,928 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:42:19,929 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:42:19,935 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 10:42:19,938 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:42:19,938 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:42:19,984 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:42:19,984 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:42:19,984 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:42:20,137 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:42:20,336 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:42:20,339 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 10:42:20,339 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 10:42:20,341 INFO ]: Interpolant automaton has 3 states [2018-06-25 10:42:20,355 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 10:42:20,356 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 10:42:20,358 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 10:42:20,467 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:42:20,467 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 10:42:20,469 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 10:42:20,471 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 10:42:20,471 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:42:20,481 INFO ]: With dead ends: 9 [2018-06-25 10:42:20,482 INFO ]: Without dead ends: 9 [2018-06-25 10:42:20,484 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 10:42:20,501 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 10:42:20,515 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 10:42:20,516 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 10:42:20,517 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 10:42:20,518 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 10:42:20,518 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:42:20,518 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 10:42:20,518 INFO ]: Interpolant automaton has 3 states. [2018-06-25 10:42:20,518 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 10:42:20,519 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 10:42:20,519 INFO ]: Found error trace [2018-06-25 10:42:20,519 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:42:20,519 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:42:20,519 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 10:42:20,519 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:42:20,519 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:42:20,520 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:42:20,520 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:42:20,520 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:42:20,685 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:42:20,971 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:42:20,971 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:42:20,971 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 [2018-06-25 10:42:20,982 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:42:21,228 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:42:21,247 INFO ]: Computing forward predicates... Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown