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_4_4_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 11:11:07,640 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 11:11:07,642 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 11:11:07,653 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 11:11:07,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 11:11:07,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 11:11:07,655 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 11:11:07,657 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 11:11:07,659 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 11:11:07,659 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 11:11:07,660 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 11:11:07,661 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 11:11:07,661 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 11:11:07,662 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 11:11:07,664 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 11:11:07,665 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 11:11:07,667 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 11:11:07,669 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 11:11:07,670 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 11:11:07,671 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 11:11:07,682 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 11:11:07,685 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 11:11:07,685 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 11:11:07,685 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 11:11:07,686 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 11:11:07,687 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 11:11:07,688 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 11:11:07,688 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 11:11:07,690 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 11:11:07,690 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 11:11:07,690 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 11:11:07,700 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 11:11:07,701 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 11:11:07,701 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 11:11:07,702 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 11:11:07,702 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 11:11:07,722 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 11:11:07,723 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 11:11:07,723 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 11:11:07,723 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 11:11:07,724 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 11:11:07,724 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 11:11:07,725 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 11:11:07,725 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 11:11:07,725 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 11:11:07,725 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 11:11:07,725 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 11:11:07,726 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 11:11:07,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 11:11:07,726 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 11:11:07,726 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 11:11:07,726 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 11:11:07,727 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 11:11:07,727 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 11:11:07,727 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 11:11:07,727 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 11:11:07,727 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 11:11:07,729 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 11:11:07,729 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 11:11:07,766 INFO ]: Repository-Root is: /tmp [2018-06-25 11:11:07,783 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 11:11:07,789 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 11:11:07,790 INFO ]: Initializing SmtParser... [2018-06-25 11:11:07,790 INFO ]: SmtParser initialized [2018-06-25 11:11:07,791 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_agreement.smt2 [2018-06-25 11:11:07,791 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 11:11:07,879 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_agreement.smt2 unknown [2018-06-25 11:11:08,219 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_agreement.smt2 [2018-06-25 11:11:08,233 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 11:11:08,237 INFO ]: Walking toolchain with 4 elements. [2018-06-25 11:11:08,238 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 11:11:08,238 INFO ]: Initializing ChcToBoogie... [2018-06-25 11:11:08,238 INFO ]: ChcToBoogie initialized [2018-06-25 11:11:08,241 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 11:11:08" (1/1) ... [2018-06-25 11:11:08,298 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08 Unit [2018-06-25 11:11:08,298 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 11:11:08,299 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 11:11:08,299 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 11:11:08,299 INFO ]: Boogie Preprocessor initialized [2018-06-25 11:11:08,319 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08" (1/1) ... [2018-06-25 11:11:08,319 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08" (1/1) ... [2018-06-25 11:11:08,338 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08" (1/1) ... [2018-06-25 11:11:08,338 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08" (1/1) ... [2018-06-25 11:11:08,346 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08" (1/1) ... [2018-06-25 11:11:08,348 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08" (1/1) ... [2018-06-25 11:11:08,361 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08" (1/1) ... [2018-06-25 11:11:08,364 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 11:11:08,364 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 11:11:08,364 INFO ]: Initializing RCFGBuilder... [2018-06-25 11:11:08,364 INFO ]: RCFGBuilder initialized [2018-06-25 11:11:08,365 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08" (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 [2018-06-25 11:11:08,380 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 11:11:08,380 INFO ]: Found specification of procedure gotoProc [2018-06-25 11:11:08,380 INFO ]: Found implementation of procedure gotoProc [2018-06-25 11:11:08,381 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 11:11:08,381 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 11:11:08,382 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 11:11:08,785 INFO ]: Using library mode [2018-06-25 11:11:08,786 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 11:11:08 BoogieIcfgContainer [2018-06-25 11:11:08,786 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 11:11:08,787 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 11:11:08,787 INFO ]: Initializing TraceAbstraction... [2018-06-25 11:11:08,791 INFO ]: TraceAbstraction initialized [2018-06-25 11:11:08,791 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 11:11:08" (1/3) ... [2018-06-25 11:11:08,792 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2f15b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 11:11:08, skipping insertion in model container [2018-06-25 11:11:08,792 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:11:08" (2/3) ... [2018-06-25 11:11:08,792 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2f15b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 11:11:08, skipping insertion in model container [2018-06-25 11:11:08,792 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 11:11:08" (3/3) ... [2018-06-25 11:11:08,794 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 11:11:08,803 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 11:11:08,813 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 11:11:08,850 INFO ]: Using default assertion order modulation [2018-06-25 11:11:08,851 INFO ]: Interprodecural is true [2018-06-25 11:11:08,851 INFO ]: Hoare is false [2018-06-25 11:11:08,851 INFO ]: Compute interpolants for FPandBP [2018-06-25 11:11:08,851 INFO ]: Backedges is TWOTRACK [2018-06-25 11:11:08,851 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 11:11:08,851 INFO ]: Difference is false [2018-06-25 11:11:08,851 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 11:11:08,851 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 11:11:08,865 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 11:11:08,879 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 11:11:08,879 INFO ]: Found error trace [2018-06-25 11:11:08,880 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 11:11:08,881 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 11:11:08,885 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-25 11:11:08,886 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 11:11:08,887 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 11:11:08,922 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:11:08,922 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 11:11:08,922 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:11:09,031 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:11:09,136 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 11:11:09,137 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 11:11:09,137 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 11:11:09,139 INFO ]: Interpolant automaton has 3 states [2018-06-25 11:11:09,149 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 11:11:09,149 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 11:11:09,151 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 11:11:09,233 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 11:11:09,233 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 11:11:09,234 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 11:11:09,236 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 11:11:09,236 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 11:11:09,247 INFO ]: With dead ends: 9 [2018-06-25 11:11:09,247 INFO ]: Without dead ends: 9 [2018-06-25 11:11:09,249 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 11:11:09,266 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 11:11:09,292 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 11:11:09,293 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 11:11:09,293 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 11:11:09,294 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 11:11:09,294 INFO ]: Finished accepts. word is rejected. [2018-06-25 11:11:09,294 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 11:11:09,294 INFO ]: Interpolant automaton has 3 states. [2018-06-25 11:11:09,295 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 11:11:09,295 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 11:11:09,295 INFO ]: Found error trace [2018-06-25 11:11:09,295 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 11:11:09,295 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 11:11:09,295 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-25 11:11:09,295 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 11:11:09,295 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 11:11:09,296 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:11:09,296 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 11:11:09,296 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:11:09,397 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:11:09,674 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 11:11:09,674 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 11:11:09,674 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 11:11:09,683 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 11:11:09,843 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:11:09,859 INFO ]: Computing forward predicates... [2018-06-25 11:11:12,050 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 11:11:12,074 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 11:11:12,074 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 11:11:12,075 INFO ]: Interpolant automaton has 6 states [2018-06-25 11:11:12,075 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 11:11:12,075 INFO ]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-06-25 11:11:12,075 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 11:11:12,278 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 11:11:12,278 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 11:11:12,279 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 11:11:12,279 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 11:11:12,279 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 11:11:12,279 INFO ]: With dead ends: 11 [2018-06-25 11:11:12,279 INFO ]: Without dead ends: 11 [2018-06-25 11:11:12,280 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-06-25 11:11:12,280 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 11:11:12,282 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 11:11:12,282 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 11:11:12,282 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 11:11:12,282 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-25 11:11:12,282 INFO ]: Finished accepts. word is rejected. [2018-06-25 11:11:12,282 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 11:11:12,282 INFO ]: Interpolant automaton has 6 states. [2018-06-25 11:11:12,282 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 11:11:12,283 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 11:11:12,283 INFO ]: Found error trace [2018-06-25 11:11:12,283 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 11:11:12,283 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 11:11:12,284 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 2 times [2018-06-25 11:11:12,284 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 11:11:12,284 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 11:11:12,285 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:11:12,285 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 11:11:12,285 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:11:12,721 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:11:13,760 WARN ]: Spent 243.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 19 [2018-06-25 11:11:18,339 WARN ]: Spent 4.47 s on a formula simplification. DAG size of input: 391 DAG size of output: 159 [2018-06-25 11:11:21,644 WARN ]: Spent 3.19 s on a formula simplification. DAG size of input: 418 DAG size of output: 129 [2018-06-25 11:11:22,327 WARN ]: Spent 647.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 49 [2018-06-25 11:11:22,331 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 11:11:22,331 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 11:11:22,331 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 11:11:22,345 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 11:11:22,547 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 11:11:22,547 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:11:22,556 INFO ]: Computing forward predicates... [2018-06-25 11:11:31,764 WARN ]: Simplifying disjunction of 8320 conjuctions. This might take some time... [2018-06-25 11:11:47,311 INFO ]: Simplified to disjunction of 8320 conjuctions. [2018-06-25 11:11:55,956 WARN ]: Simplifying disjunction of 266240 conjuctions. This might take some time... Received shutdown request... [2018-06-25 11:12:14,672 INFO ]: Timeout while computing interpolants [2018-06-25 11:12:14,900 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 11:12:14,901 WARN ]: Verification canceled [2018-06-25 11:12:14,904 WARN ]: Timeout [2018-06-25 11:12:14,904 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 11:12:14 BoogieIcfgContainer [2018-06-25 11:12:14,905 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 11:12:14,905 INFO ]: Toolchain (without parser) took 66672.13 ms. Allocated memory was 303.6 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 248.0 MB in the beginning and 1.0 GB in the end (delta: -787.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-25 11:12:14,906 INFO ]: SmtParser took 0.05 ms. Allocated memory is still 303.6 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 11:12:14,907 INFO ]: ChcToBoogie took 61.10 ms. Allocated memory is still 303.6 MB. Free memory was 248.0 MB in the beginning and 245.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 11:12:14,907 INFO ]: Boogie Preprocessor took 64.95 ms. Allocated memory is still 303.6 MB. Free memory was 245.0 MB in the beginning and 243.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 11:12:14,908 INFO ]: RCFGBuilder took 421.57 ms. Allocated memory is still 303.6 MB. Free memory was 243.0 MB in the beginning and 221.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. [2018-06-25 11:12:14,908 INFO ]: TraceAbstraction took 66117.14 ms. Allocated memory was 303.6 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 220.0 MB in the beginning and 1.0 GB in the end (delta: -815.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-25 11:12:14,923 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 303.6 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 61.10 ms. Allocated memory is still 303.6 MB. Free memory was 248.0 MB in the beginning and 245.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 64.95 ms. Allocated memory is still 303.6 MB. Free memory was 245.0 MB in the beginning and 243.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 421.57 ms. Allocated memory is still 303.6 MB. Free memory was 243.0 MB in the beginning and 221.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 66117.14 ms. Allocated memory was 303.6 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 220.0 MB in the beginning and 1.0 GB in the end (delta: -815.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 11 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 266240 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 66.0s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 1 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 1 NumberOfNonLiveVariables, 349 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_4_4_agreement.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_11-12-14-941.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_4_4_agreement.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_11-12-14-941.csv Completed graceful shutdown