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_i4_e6_2175.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 16:24:41,409 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 16:24:41,411 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 16:24:41,426 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 16:24:41,426 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 16:24:41,427 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 16:24:41,431 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 16:24:41,437 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 16:24:41,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 16:24:41,441 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 16:24:41,442 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 16:24:41,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 16:24:41,446 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 16:24:41,447 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 16:24:41,447 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 16:24:41,458 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 16:24:41,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 16:24:41,461 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 16:24:41,463 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 16:24:41,464 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 16:24:41,468 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 16:24:41,470 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 16:24:41,470 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 16:24:41,470 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 16:24:41,471 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 16:24:41,477 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 16:24:41,478 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 16:24:41,478 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 16:24:41,479 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 16:24:41,480 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 16:24:41,480 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 16:24:41,486 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 16:24:41,486 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 16:24:41,487 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 16:24:41,488 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 16:24:41,488 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 16:24:41,521 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 16:24:41,521 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 16:24:41,522 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 16:24:41,522 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 16:24:41,524 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 16:24:41,524 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 16:24:41,524 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 16:24:41,524 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 16:24:41,525 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 16:24:41,525 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 16:24:41,525 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 16:24:41,525 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 16:24:41,525 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 16:24:41,526 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 16:24:41,526 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 16:24:41,526 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 16:24:41,526 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 16:24:41,526 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 16:24:41,526 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 16:24:41,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 16:24:41,531 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 16:24:41,532 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 16:24:41,532 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 16:24:41,576 INFO ]: Repository-Root is: /tmp [2018-06-25 16:24:41,589 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 16:24:41,593 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 16:24:41,594 INFO ]: Initializing SmtParser... [2018-06-25 16:24:41,595 INFO ]: SmtParser initialized [2018-06-25 16:24:41,595 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i4_e6_2175.smt2 [2018-06-25 16:24:41,597 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 16:24:41,696 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i4_e6_2175.smt2 unknown [2018-06-25 16:24:42,116 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i4_e6_2175.smt2 [2018-06-25 16:24:42,121 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 16:24:42,128 INFO ]: Walking toolchain with 4 elements. [2018-06-25 16:24:42,128 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 16:24:42,129 INFO ]: Initializing ChcToBoogie... [2018-06-25 16:24:42,129 INFO ]: ChcToBoogie initialized [2018-06-25 16:24:42,133 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:24:42" (1/1) ... [2018-06-25 16:24:42,259 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42 Unit [2018-06-25 16:24:42,259 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 16:24:42,259 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 16:24:42,259 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 16:24:42,260 INFO ]: Boogie Preprocessor initialized [2018-06-25 16:24:42,312 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42" (1/1) ... [2018-06-25 16:24:42,312 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42" (1/1) ... [2018-06-25 16:24:42,322 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42" (1/1) ... [2018-06-25 16:24:42,322 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42" (1/1) ... [2018-06-25 16:24:42,330 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42" (1/1) ... [2018-06-25 16:24:42,335 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42" (1/1) ... [2018-06-25 16:24:42,337 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42" (1/1) ... [2018-06-25 16:24:42,343 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 16:24:42,343 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 16:24:42,343 INFO ]: Initializing RCFGBuilder... [2018-06-25 16:24:42,343 INFO ]: RCFGBuilder initialized [2018-06-25 16:24:42,345 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42" (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 16:24:42,363 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 16:24:42,364 INFO ]: Found specification of procedure gotoProc [2018-06-25 16:24:42,364 INFO ]: Found implementation of procedure gotoProc [2018-06-25 16:24:42,364 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 16:24:42,364 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 16:24:42,364 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 16:24:42,739 INFO ]: Using library mode [2018-06-25 16:24:42,749 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:24:42 BoogieIcfgContainer [2018-06-25 16:24:42,749 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 16:24:42,751 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 16:24:42,751 INFO ]: Initializing TraceAbstraction... [2018-06-25 16:24:42,757 INFO ]: TraceAbstraction initialized [2018-06-25 16:24:42,757 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:24:42" (1/3) ... [2018-06-25 16:24:42,758 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5302215f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 04:24:42, skipping insertion in model container [2018-06-25 16:24:42,758 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:24:42" (2/3) ... [2018-06-25 16:24:42,758 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5302215f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 04:24:42, skipping insertion in model container [2018-06-25 16:24:42,758 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:24:42" (3/3) ... [2018-06-25 16:24:42,760 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 16:24:42,770 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 16:24:42,777 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 16:24:42,815 INFO ]: Using default assertion order modulation [2018-06-25 16:24:42,816 INFO ]: Interprodecural is true [2018-06-25 16:24:42,816 INFO ]: Hoare is false [2018-06-25 16:24:42,816 INFO ]: Compute interpolants for FPandBP [2018-06-25 16:24:42,816 INFO ]: Backedges is TWOTRACK [2018-06-25 16:24:42,816 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 16:24:42,816 INFO ]: Difference is false [2018-06-25 16:24:42,816 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 16:24:42,816 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 16:24:42,829 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 16:24:42,846 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 16:24:42,847 INFO ]: Found error trace [2018-06-25 16:24:42,847 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:24:42,848 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:24:42,855 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-25 16:24:42,857 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:24:42,857 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:24:42,891 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:24:42,891 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:24:42,891 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:24:42,996 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:24:43,227 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:24:43,229 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 16:24:43,229 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 16:24:43,231 INFO ]: Interpolant automaton has 3 states [2018-06-25 16:24:43,242 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 16:24:43,242 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:24:43,244 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 16:24:43,317 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:24:43,317 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 16:24:43,318 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 16:24:43,319 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 16:24:43,319 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:24:43,330 INFO ]: With dead ends: 9 [2018-06-25 16:24:43,330 INFO ]: Without dead ends: 9 [2018-06-25 16:24:43,332 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:24:43,350 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 16:24:43,379 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 16:24:43,381 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 16:24:43,382 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 16:24:43,383 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 16:24:43,383 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:24:43,383 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 16:24:43,383 INFO ]: Interpolant automaton has 3 states. [2018-06-25 16:24:43,383 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 16:24:43,383 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 16:24:43,383 INFO ]: Found error trace [2018-06-25 16:24:43,383 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:24:43,384 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:24:43,384 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-25 16:24:43,384 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:24:43,384 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:24:43,385 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:24:43,385 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:24:43,385 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:24:43,522 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:24:43,888 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:24:43,888 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:24:43,888 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 16:24:43,896 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:24:44,060 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:24:44,071 INFO ]: Computing forward predicates... [2018-06-25 16:24:46,014 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,029 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:24:46,061 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:24:46,074 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,080 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:24:46,114 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:24:46,126 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,137 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,143 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,153 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:24:46,170 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:24:46,202 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,216 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,220 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,227 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,239 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,242 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,253 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,268 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,274 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,298 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,301 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,309 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,313 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,320 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,322 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,332 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,345 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,358 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,370 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,376 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,385 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,387 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,401 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,407 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,418 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,437 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,441 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,452 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,454 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,463 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,466 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,469 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,471 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,474 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,480 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,489 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,492 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,502 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,519 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,523 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,525 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,528 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:24:46,530 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,531 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,534 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:24:46,566 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,577 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,591 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:24:46,599 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,601 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,604 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,609 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:24:46,618 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,628 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,635 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:24:46,641 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,645 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,649 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:24:46,655 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,658 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,663 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,674 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:24:46,678 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,682 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:24:46,687 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,690 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,706 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:24:46,722 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,726 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:24:46,744 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,809 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,811 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,815 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,819 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,822 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,826 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,829 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,832 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,837 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,858 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,869 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:24:46,871 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:24:46,881 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,886 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:24:46,895 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:24:46,903 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:24:46,908 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:24:46,916 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:25:05,745 WARN ]: Spent 1.59 s on a formula simplification. DAG size of input: 212 DAG size of output: 12 [2018-06-25 16:25:05,751 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:25:05,785 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:25:05,785 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 16:25:05,786 INFO ]: Interpolant automaton has 5 states [2018-06-25 16:25:05,786 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 16:25:05,786 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 16:25:05,786 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-25 16:25:05,937 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:25:05,937 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 16:25:05,938 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 16:25:05,938 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-25 16:25:05,938 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:25:05,938 INFO ]: With dead ends: 10 [2018-06-25 16:25:05,938 INFO ]: Without dead ends: 10 [2018-06-25 16:25:05,939 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 16:25:05,939 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 16:25:05,940 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 16:25:05,940 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 16:25:05,940 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-25 16:25:05,940 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-25 16:25:05,940 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:25:05,940 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-25 16:25:05,940 INFO ]: Interpolant automaton has 5 states. [2018-06-25 16:25:05,940 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-25 16:25:05,940 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 16:25:05,940 INFO ]: Found error trace [2018-06-25 16:25:05,941 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:25:05,941 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:25:05,941 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-25 16:25:05,941 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:25:05,941 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:25:05,942 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:25:05,942 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:25:05,942 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:25:06,102 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:25:08,568 WARN ]: Spent 1.99 s on a formula simplification. DAG size of input: 243 DAG size of output: 183 [2018-06-25 16:25:08,585 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:25:08,585 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:25:08,585 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 16:25:08,599 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 16:25:08,740 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 16:25:08,740 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:25:08,752 INFO ]: Computing forward predicates... [2018-06-25 16:25:12,984 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:25:12,984 WARN ]: expecting exponential blowup for input size 15 [2018-06-25 16:25:14,087 WARN ]: Simplifying disjunction of 43200 conjuctions. This might take some time... Received shutdown request... [2018-06-25 16:25:45,308 INFO ]: Timeout while computing interpolants [2018-06-25 16:25:45,509 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:25:45,509 WARN ]: Verification canceled [2018-06-25 16:25:45,513 WARN ]: Timeout [2018-06-25 16:25:45,513 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 04:25:45 BoogieIcfgContainer [2018-06-25 16:25:45,513 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 16:25:45,514 INFO ]: Toolchain (without parser) took 63392.61 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 249.6 MB in the beginning and 821.9 MB in the end (delta: -572.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-25 16:25:45,515 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 16:25:45,515 INFO ]: ChcToBoogie took 130.63 ms. Allocated memory is still 307.2 MB. Free memory was 249.6 MB in the beginning and 246.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:25:45,516 INFO ]: Boogie Preprocessor took 83.27 ms. Allocated memory is still 307.2 MB. Free memory was 246.7 MB in the beginning and 244.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:25:45,516 INFO ]: RCFGBuilder took 405.97 ms. Allocated memory is still 307.2 MB. Free memory was 244.7 MB in the beginning and 217.6 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 3.6 GB. [2018-06-25 16:25:45,526 INFO ]: TraceAbstraction took 62762.38 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 217.6 MB in the beginning and 821.9 MB in the end (delta: -604.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 16:25:45,529 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 130.63 ms. Allocated memory is still 307.2 MB. Free memory was 249.6 MB in the beginning and 246.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 83.27 ms. Allocated memory is still 307.2 MB. Free memory was 246.7 MB in the beginning and 244.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 405.97 ms. Allocated memory is still 307.2 MB. Free memory was 244.7 MB in the beginning and 217.6 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 62762.38 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 217.6 MB in the beginning and 821.9 MB in the end (delta: -604.3 MB). Peak memory consumption was 1.3 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 43200 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 62.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s 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, 0.3s SatisfiabilityAnalysisTime, 22.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 4 NumberOfNonLiveVariables, 521 ConjunctsInSsa, 47 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_i4_e6_2175.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_16-25-45-539.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/MESI_i4_e6_2175.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_16-25-45-539.csv Completed graceful shutdown