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/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e6_2281.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 16:21:09,975 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 16:21:09,978 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 16:21:09,992 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 16:21:09,992 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 16:21:09,993 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 16:21:09,994 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 16:21:09,997 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 16:21:09,998 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 16:21:10,001 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 16:21:10,001 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 16:21:10,002 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 16:21:10,002 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 16:21:10,003 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 16:21:10,006 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 16:21:10,006 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 16:21:10,008 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 16:21:10,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 16:21:10,021 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 16:21:10,022 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 16:21:10,023 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 16:21:10,025 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 16:21:10,025 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 16:21:10,028 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 16:21:10,029 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 16:21:10,030 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 16:21:10,030 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 16:21:10,031 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 16:21:10,035 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 16:21:10,035 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 16:21:10,036 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 16:21:10,037 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 16:21:10,037 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 16:21:10,037 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 16:21:10,038 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 16:21:10,038 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 16:21:10,061 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 16:21:10,062 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 16:21:10,062 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 16:21:10,062 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 16:21:10,063 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 16:21:10,063 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 16:21:10,063 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 16:21:10,064 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 16:21:10,065 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 16:21:10,065 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 16:21:10,065 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 16:21:10,065 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 16:21:10,065 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 16:21:10,066 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 16:21:10,066 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 16:21:10,066 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 16:21:10,066 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 16:21:10,066 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 16:21:10,066 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 16:21:10,067 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 16:21:10,067 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 16:21:10,069 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 16:21:10,069 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 16:21:10,114 INFO ]: Repository-Root is: /tmp [2018-06-25 16:21:10,126 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 16:21:10,130 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 16:21:10,132 INFO ]: Initializing SmtParser... [2018-06-25 16:21:10,132 INFO ]: SmtParser initialized [2018-06-25 16:21:10,133 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e6_2281.smt2 [2018-06-25 16:21:10,135 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 16:21:10,231 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e6_2281.smt2 unknown [2018-06-25 16:21:10,618 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e6_2281.smt2 [2018-06-25 16:21:10,623 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 16:21:10,629 INFO ]: Walking toolchain with 4 elements. [2018-06-25 16:21:10,630 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 16:21:10,630 INFO ]: Initializing ChcToBoogie... [2018-06-25 16:21:10,630 INFO ]: ChcToBoogie initialized [2018-06-25 16:21:10,633 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:21:10" (1/1) ... [2018-06-25 16:21:10,713 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10 Unit [2018-06-25 16:21:10,713 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 16:21:10,713 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 16:21:10,713 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 16:21:10,713 INFO ]: Boogie Preprocessor initialized [2018-06-25 16:21:10,737 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10" (1/1) ... [2018-06-25 16:21:10,738 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10" (1/1) ... [2018-06-25 16:21:10,756 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10" (1/1) ... [2018-06-25 16:21:10,756 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10" (1/1) ... [2018-06-25 16:21:10,763 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10" (1/1) ... [2018-06-25 16:21:10,772 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10" (1/1) ... [2018-06-25 16:21:10,774 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10" (1/1) ... [2018-06-25 16:21:10,778 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 16:21:10,778 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 16:21:10,778 INFO ]: Initializing RCFGBuilder... [2018-06-25 16:21:10,778 INFO ]: RCFGBuilder initialized [2018-06-25 16:21:10,779 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10" (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 16:21:10,808 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 16:21:10,808 INFO ]: Found specification of procedure gotoProc [2018-06-25 16:21:10,808 INFO ]: Found implementation of procedure gotoProc [2018-06-25 16:21:10,808 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 16:21:10,808 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 16:21:10,808 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 16:21:11,189 INFO ]: Using library mode [2018-06-25 16:21:11,190 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:21:11 BoogieIcfgContainer [2018-06-25 16:21:11,190 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 16:21:11,191 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 16:21:11,191 INFO ]: Initializing TraceAbstraction... [2018-06-25 16:21:11,194 INFO ]: TraceAbstraction initialized [2018-06-25 16:21:11,194 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:21:10" (1/3) ... [2018-06-25 16:21:11,195 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238c7981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 04:21:11, skipping insertion in model container [2018-06-25 16:21:11,195 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:21:10" (2/3) ... [2018-06-25 16:21:11,195 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238c7981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 04:21:11, skipping insertion in model container [2018-06-25 16:21:11,195 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:21:11" (3/3) ... [2018-06-25 16:21:11,197 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 16:21:11,206 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 16:21:11,217 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 16:21:11,259 INFO ]: Using default assertion order modulation [2018-06-25 16:21:11,260 INFO ]: Interprodecural is true [2018-06-25 16:21:11,260 INFO ]: Hoare is false [2018-06-25 16:21:11,260 INFO ]: Compute interpolants for FPandBP [2018-06-25 16:21:11,260 INFO ]: Backedges is TWOTRACK [2018-06-25 16:21:11,260 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 16:21:11,260 INFO ]: Difference is false [2018-06-25 16:21:11,260 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 16:21:11,260 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 16:21:11,271 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 16:21:11,283 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 16:21:11,283 INFO ]: Found error trace [2018-06-25 16:21:11,284 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:21:11,284 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:21:11,290 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-25 16:21:11,293 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:21:11,293 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:21:11,340 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:21:11,340 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:21:11,340 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:21:11,441 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:21:11,587 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:21:11,590 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 16:21:11,590 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 16:21:11,592 INFO ]: Interpolant automaton has 3 states [2018-06-25 16:21:11,608 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 16:21:11,608 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:21:11,611 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 16:21:11,698 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:21:11,698 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 16:21:11,699 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 16:21:11,700 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 16:21:11,701 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:21:11,714 INFO ]: With dead ends: 9 [2018-06-25 16:21:11,714 INFO ]: Without dead ends: 9 [2018-06-25 16:21:11,716 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 16:21:11,736 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 16:21:11,753 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 16:21:11,754 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 16:21:11,755 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 16:21:11,756 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 16:21:11,756 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:21:11,756 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 16:21:11,756 INFO ]: Interpolant automaton has 3 states. [2018-06-25 16:21:11,756 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 16:21:11,757 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 16:21:11,757 INFO ]: Found error trace [2018-06-25 16:21:11,757 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:21:11,757 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:21:11,757 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-25 16:21:11,757 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:21:11,757 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:21:11,758 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:21:11,758 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:21:11,758 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:21:11,840 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:21:12,339 WARN ]: Spent 298.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2018-06-25 16:21:12,341 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:21:12,341 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:21:12,341 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) [2018-06-25 16:21:12,365 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:21:12,503 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:21:12,516 INFO ]: Computing forward predicates... [2018-06-25 16:21:13,354 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:21:13,393 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:21:13,403 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:21:13,421 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:21:13,828 WARN ]: expecting exponential blowup for input size 14 [2018-06-25 16:21:13,985 WARN ]: Simplifying disjunction of 5184 conjuctions. This might take some time... [2018-06-25 16:21:15,680 INFO ]: Simplified to disjunction of 3456 conjuctions. [2018-06-25 16:21:15,711 WARN ]: expecting exponential blowup for input size 13 [2018-06-25 16:21:16,213 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:21:16,322 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:21:16,422 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:21:16,980 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:21:17,020 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:21:17,022 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:21:17,024 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:21:17,346 WARN ]: expecting exponential blowup for input size 13 [2018-06-25 16:21:17,370 WARN ]: Simplifying disjunction of 5184 conjuctions. This might take some time... [2018-06-25 16:21:18,941 INFO ]: Simplified to disjunction of 3456 conjuctions. [2018-06-25 16:21:18,957 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:21:18,960 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:21:18,963 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:21:18,974 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:21:18,976 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:21:19,156 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:21:19,230 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:21:19,231 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:21:19,232 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:21:19,235 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:21:19,277 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:21:19,277 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:21:19,279 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:21:19,282 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:21:19,294 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:21:19,299 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:21:30,474 WARN ]: Spent 942.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 15 [2018-06-25 16:21:30,478 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:21:30,501 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:21:30,501 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 16:21:30,501 INFO ]: Interpolant automaton has 5 states [2018-06-25 16:21:30,502 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 16:21:30,502 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 16:21:30,502 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-25 16:21:30,555 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:21:30,555 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 16:21:30,555 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 16:21:30,555 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-25 16:21:30,555 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:21:30,555 INFO ]: With dead ends: 10 [2018-06-25 16:21:30,555 INFO ]: Without dead ends: 10 [2018-06-25 16:21:30,556 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 16:21:30,556 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 16:21:30,557 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 16:21:30,557 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 16:21:30,558 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-25 16:21:30,558 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-25 16:21:30,558 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:21:30,558 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-25 16:21:30,558 INFO ]: Interpolant automaton has 5 states. [2018-06-25 16:21:30,558 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-25 16:21:30,558 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 16:21:30,558 INFO ]: Found error trace [2018-06-25 16:21:30,559 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:21:30,559 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:21:30,559 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-25 16:21:30,559 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:21:30,559 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:21:30,560 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:21:30,560 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:21:30,560 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:21:30,717 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:21:31,391 WARN ]: Spent 339.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2018-06-25 16:21:31,408 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:21:31,408 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:21:31,408 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 16:21:31,415 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 16:21:31,537 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 16:21:31,537 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:21:31,546 INFO ]: Computing forward predicates... [2018-06-25 16:21:36,300 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:21:36,300 WARN ]: expecting exponential blowup for input size 14 [2018-06-25 16:21:36,623 WARN ]: Simplifying disjunction of 28800 conjuctions. This might take some time... Received shutdown request... [2018-06-25 16:22:17,720 INFO ]: Timeout while computing interpolants [2018-06-25 16:22:17,921 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:22:17,921 WARN ]: Verification canceled [2018-06-25 16:22:17,925 WARN ]: Timeout [2018-06-25 16:22:17,925 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 04:22:17 BoogieIcfgContainer [2018-06-25 16:22:17,926 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 16:22:17,926 INFO ]: Toolchain (without parser) took 67302.90 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 248.2 MB in the beginning and 282.4 MB in the end (delta: -34.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 16:22:17,928 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 16:22:17,928 INFO ]: ChcToBoogie took 83.14 ms. Allocated memory is still 305.7 MB. Free memory was 248.2 MB in the beginning and 245.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:22:17,928 INFO ]: Boogie Preprocessor took 64.42 ms. Allocated memory is still 305.7 MB. Free memory was 245.2 MB in the beginning and 243.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:22:17,929 INFO ]: RCFGBuilder took 411.86 ms. Allocated memory is still 305.7 MB. Free memory was 243.2 MB in the beginning and 216.2 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 3.6 GB. [2018-06-25 16:22:17,929 INFO ]: TraceAbstraction took 66734.60 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 216.2 MB in the beginning and 282.4 MB in the end (delta: -66.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-25 16:22:17,932 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 83.14 ms. Allocated memory is still 305.7 MB. Free memory was 248.2 MB in the beginning and 245.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 64.42 ms. Allocated memory is still 305.7 MB. Free memory was 245.2 MB in the beginning and 243.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 411.86 ms. Allocated memory is still 305.7 MB. Free memory was 243.2 MB in the beginning and 216.2 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 66734.60 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 216.2 MB in the beginning and 282.4 MB in the end (delta: -66.2 MB). Peak memory consumption was 1.2 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 10 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 28800 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 66.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, 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, 18.6s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 497 SizeOfPredicates, 4 NumberOfNonLiveVariables, 521 ConjunctsInSsa, 45 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/MESI_i3_e1_447_e6_2281.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_16-22-17-951.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/MESI_i3_e1_447_e6_2281.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_16-22-17-951.csv Completed graceful shutdown