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_e1_1292.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 16:19:50,095 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 16:19:50,097 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 16:19:50,108 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 16:19:50,109 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 16:19:50,109 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 16:19:50,110 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 16:19:50,113 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 16:19:50,115 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 16:19:50,115 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 16:19:50,117 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 16:19:50,118 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 16:19:50,118 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 16:19:50,121 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 16:19:50,122 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 16:19:50,123 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 16:19:50,124 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 16:19:50,128 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 16:19:50,129 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 16:19:50,130 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 16:19:50,131 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 16:19:50,138 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 16:19:50,138 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 16:19:50,138 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 16:19:50,139 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 16:19:50,140 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 16:19:50,141 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 16:19:50,143 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 16:19:50,144 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 16:19:50,144 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 16:19:50,145 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 16:19:50,145 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 16:19:50,146 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 16:19:50,146 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 16:19:50,147 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 16:19:50,151 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 16:19:50,169 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 16:19:50,169 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 16:19:50,170 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 16:19:50,170 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 16:19:50,175 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 16:19:50,175 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 16:19:50,175 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 16:19:50,175 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 16:19:50,175 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 16:19:50,176 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 16:19:50,176 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 16:19:50,176 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 16:19:50,176 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 16:19:50,176 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 16:19:50,177 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 16:19:50,177 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 16:19:50,177 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 16:19:50,177 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 16:19:50,177 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 16:19:50,177 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 16:19:50,177 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 16:19:50,180 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 16:19:50,180 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 16:19:50,231 INFO ]: Repository-Root is: /tmp [2018-06-25 16:19:50,252 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 16:19:50,256 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 16:19:50,258 INFO ]: Initializing SmtParser... [2018-06-25 16:19:50,258 INFO ]: SmtParser initialized [2018-06-25 16:19:50,259 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e1_1292.smt2 [2018-06-25 16:19:50,260 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 16:19:50,352 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e1_1292.smt2 unknown [2018-06-25 16:19:50,792 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e1_1292.smt2 [2018-06-25 16:19:50,796 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 16:19:50,810 INFO ]: Walking toolchain with 4 elements. [2018-06-25 16:19:50,811 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 16:19:50,811 INFO ]: Initializing ChcToBoogie... [2018-06-25 16:19:50,811 INFO ]: ChcToBoogie initialized [2018-06-25 16:19:50,814 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:19:50" (1/1) ... [2018-06-25 16:19:50,904 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50 Unit [2018-06-25 16:19:50,905 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 16:19:50,905 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 16:19:50,905 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 16:19:50,905 INFO ]: Boogie Preprocessor initialized [2018-06-25 16:19:50,924 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50" (1/1) ... [2018-06-25 16:19:50,925 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50" (1/1) ... [2018-06-25 16:19:50,932 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50" (1/1) ... [2018-06-25 16:19:50,932 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50" (1/1) ... [2018-06-25 16:19:50,938 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50" (1/1) ... [2018-06-25 16:19:50,941 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50" (1/1) ... [2018-06-25 16:19:50,943 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50" (1/1) ... [2018-06-25 16:19:50,946 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 16:19:50,947 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 16:19:50,947 INFO ]: Initializing RCFGBuilder... [2018-06-25 16:19:50,947 INFO ]: RCFGBuilder initialized [2018-06-25 16:19:50,948 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50" (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 16:19:50,967 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 16:19:50,967 INFO ]: Found specification of procedure gotoProc [2018-06-25 16:19:50,967 INFO ]: Found implementation of procedure gotoProc [2018-06-25 16:19:50,967 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 16:19:50,967 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 16:19:50,967 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 16:19:51,375 INFO ]: Using library mode [2018-06-25 16:19:51,375 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:19:51 BoogieIcfgContainer [2018-06-25 16:19:51,375 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 16:19:51,376 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 16:19:51,376 INFO ]: Initializing TraceAbstraction... [2018-06-25 16:19:51,381 INFO ]: TraceAbstraction initialized [2018-06-25 16:19:51,381 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:19:50" (1/3) ... [2018-06-25 16:19:51,382 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7736ac52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 04:19:51, skipping insertion in model container [2018-06-25 16:19:51,382 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:19:50" (2/3) ... [2018-06-25 16:19:51,382 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7736ac52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 04:19:51, skipping insertion in model container [2018-06-25 16:19:51,382 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:19:51" (3/3) ... [2018-06-25 16:19:51,384 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 16:19:51,393 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 16:19:51,403 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 16:19:51,457 INFO ]: Using default assertion order modulation [2018-06-25 16:19:51,458 INFO ]: Interprodecural is true [2018-06-25 16:19:51,458 INFO ]: Hoare is false [2018-06-25 16:19:51,458 INFO ]: Compute interpolants for FPandBP [2018-06-25 16:19:51,458 INFO ]: Backedges is TWOTRACK [2018-06-25 16:19:51,458 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 16:19:51,458 INFO ]: Difference is false [2018-06-25 16:19:51,458 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 16:19:51,458 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 16:19:51,477 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 16:19:51,492 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 16:19:51,492 INFO ]: Found error trace [2018-06-25 16:19:51,495 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:19:51,495 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:19:51,500 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-25 16:19:51,503 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:19:51,504 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:19:51,548 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:19:51,548 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:19:51,548 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:19:51,651 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:19:51,785 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:19:51,788 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 16:19:51,788 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 16:19:51,790 INFO ]: Interpolant automaton has 3 states [2018-06-25 16:19:51,803 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 16:19:51,804 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:19:51,806 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 16:19:51,877 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:19:51,877 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 16:19:51,880 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 16:19:51,881 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 16:19:51,881 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:19:51,888 INFO ]: With dead ends: 9 [2018-06-25 16:19:51,888 INFO ]: Without dead ends: 9 [2018-06-25 16:19:51,890 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 16:19:51,908 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 16:19:51,922 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 16:19:51,924 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 16:19:51,924 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 16:19:51,925 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 16:19:51,925 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:19:51,925 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 16:19:51,926 INFO ]: Interpolant automaton has 3 states. [2018-06-25 16:19:51,926 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 16:19:51,926 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 16:19:51,926 INFO ]: Found error trace [2018-06-25 16:19:51,926 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:19:51,926 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:19:51,926 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-25 16:19:51,926 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:19:51,926 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:19:51,927 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:19:51,927 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:19:51,927 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:19:52,013 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:19:52,464 WARN ]: Spent 185.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 22 [2018-06-25 16:19:52,465 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:19:52,465 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:19:52,465 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 16:19:52,473 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:19:52,617 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:19:52,631 INFO ]: Computing forward predicates... [2018-06-25 16:19:53,210 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:53,218 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:53,234 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:53,248 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:19:53,355 WARN ]: expecting exponential blowup for input size 14 [2018-06-25 16:19:53,470 WARN ]: Simplifying disjunction of 5184 conjuctions. This might take some time... [2018-06-25 16:19:55,112 INFO ]: Simplified to disjunction of 3456 conjuctions. [2018-06-25 16:19:55,151 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:19:55,183 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:19:55,217 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:19:55,620 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:55,621 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:55,623 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:19:55,628 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:55,635 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:55,637 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:19:55,638 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:19:55,640 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:19:55,653 WARN ]: expecting exponential blowup for input size 13 [2018-06-25 16:19:55,705 WARN ]: Simplifying disjunction of 5184 conjuctions. This might take some time... [2018-06-25 16:19:57,150 INFO ]: Simplified to disjunction of 3456 conjuctions. [2018-06-25 16:19:57,165 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:19:57,455 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:19:57,459 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:57,460 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:57,461 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:57,502 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:57,504 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:57,505 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:19:57,506 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:20:06,876 WARN ]: Spent 327.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 15 [2018-06-25 16:20:06,880 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:20:06,902 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:20:06,903 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 16:20:06,904 INFO ]: Interpolant automaton has 5 states [2018-06-25 16:20:06,904 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 16:20:06,904 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 16:20:06,904 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-25 16:20:06,952 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:20:06,952 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 16:20:06,952 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 16:20:06,952 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-25 16:20:06,953 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:20:06,953 INFO ]: With dead ends: 10 [2018-06-25 16:20:06,953 INFO ]: Without dead ends: 10 [2018-06-25 16:20:06,954 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 16:20:06,954 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 16:20:06,955 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 16:20:06,955 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 16:20:06,955 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-25 16:20:06,955 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-25 16:20:06,955 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:20:06,955 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-25 16:20:06,955 INFO ]: Interpolant automaton has 5 states. [2018-06-25 16:20:06,956 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-25 16:20:06,956 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 16:20:06,956 INFO ]: Found error trace [2018-06-25 16:20:06,956 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:20:06,956 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:20:06,956 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-25 16:20:06,956 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:20:06,956 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:20:06,957 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:20:06,957 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:20:06,957 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:20:07,070 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:20:07,420 WARN ]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2018-06-25 16:20:07,434 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:20:07,434 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:20:07,434 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 16:20:07,442 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 16:20:07,586 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 16:20:07,586 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:20:07,598 INFO ]: Computing forward predicates... [2018-06-25 16:20:09,107 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:20:09,108 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:20:11,131 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:20:11,131 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:20:11,774 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:20:11,788 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:20:11,788 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:20:11,794 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:20:11,794 WARN ]: expecting exponential blowup for input size 15 [2018-06-25 16:20:12,044 WARN ]: Simplifying disjunction of 12960 conjuctions. This might take some time... [2018-06-25 16:20:36,376 INFO ]: Simplified to disjunction of 12960 conjuctions. [2018-06-25 16:20:36,421 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:20:36,436 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:20:36,436 WARN ]: expecting exponential blowup for input size 14 [2018-06-25 16:20:36,556 WARN ]: Simplifying disjunction of 12960 conjuctions. This might take some time... Received shutdown request... [2018-06-25 16:21:02,047 INFO ]: Timeout while computing interpolants [2018-06-25 16:21:02,249 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:21:02,249 WARN ]: Verification canceled [2018-06-25 16:21:02,259 WARN ]: Timeout [2018-06-25 16:21:02,260 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 04:21:02 BoogieIcfgContainer [2018-06-25 16:21:02,260 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 16:21:02,260 INFO ]: Toolchain (without parser) took 71463.62 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 251.2 MB in the beginning and 977.0 MB in the end (delta: -725.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 16:21:02,261 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 16:21:02,262 INFO ]: ChcToBoogie took 94.29 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 247.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:21:02,263 INFO ]: Boogie Preprocessor took 41.18 ms. Allocated memory is still 308.8 MB. Free memory was 247.2 MB in the beginning and 245.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:21:02,263 INFO ]: RCFGBuilder took 428.36 ms. Allocated memory is still 308.8 MB. Free memory was 245.2 MB in the beginning and 219.2 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:21:02,264 INFO ]: TraceAbstraction took 70883.32 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 217.2 MB in the beginning and 977.0 MB in the end (delta: -759.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-25 16:21:02,267 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 94.29 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 247.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 41.18 ms. Allocated memory is still 308.8 MB. Free memory was 247.2 MB in the beginning and 245.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 428.36 ms. Allocated memory is still 308.8 MB. Free memory was 245.2 MB in the beginning and 219.2 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 70883.32 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 217.2 MB in the beginning and 977.0 MB in the end (delta: -759.8 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 12960 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 70.8s 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, 0.6s 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, 14.8s 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_e1_1292.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_16-21-02-285.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/MESI_i3_e1_447_e1_1292.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_16-21-02-285.csv Completed graceful shutdown