java -Xss1g -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_No_Goto.epf -i /storage/chc-comp/hopv/lia/mochi/inc3.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:33:25,839 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:33:25,841 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:33:25,855 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:33:25,855 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:33:25,857 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:33:25,858 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:33:25,860 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:33:25,861 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:33:25,862 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:33:25,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:33:25,864 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:33:25,865 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:33:25,866 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:33:25,866 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:33:25,869 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:33:25,870 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:33:25,880 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:33:25,882 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:33:25,883 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:33:25,884 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:33:25,889 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:33:25,889 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:33:25,889 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:33:25,890 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:33:25,890 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:33:25,891 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:33:25,894 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:33:25,896 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:33:25,896 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:33:25,896 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:33:25,897 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:33:25,897 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:33:25,902 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:33:25,903 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:33:25,903 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:33:25,926 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:33:25,926 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:33:25,926 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:33:25,926 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:33:25,928 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:33:25,928 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:33:25,929 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:33:25,929 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:33:25,929 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:33:25,929 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:33:25,929 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:33:25,930 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:33:25,930 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:33:25,930 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:33:25,930 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:33:25,930 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:33:25,930 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:33:25,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:33:25,931 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:33:25,934 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:33:25,935 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:33:25,976 INFO ]: Repository-Root is: /tmp [2018-06-22 11:33:25,988 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:33:25,993 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:33:25,994 INFO ]: Initializing SmtParser... [2018-06-22 11:33:25,995 INFO ]: SmtParser initialized [2018-06-22 11:33:25,995 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/inc3.smt2 [2018-06-22 11:33:25,996 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 [2018-06-22 11:33:26,081 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/inc3.smt2 unknown [2018-06-22 11:33:26,321 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/inc3.smt2 [2018-06-22 11:33:26,326 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:33:26,332 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:33:26,333 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:33:26,333 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:33:26,333 INFO ]: ChcToBoogie initialized [2018-06-22 11:33:26,336 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:33:26" (1/1) ... [2018-06-22 11:33:26,389 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26 Unit [2018-06-22 11:33:26,389 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:33:26,392 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:33:26,392 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:33:26,392 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:33:26,413 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26" (1/1) ... [2018-06-22 11:33:26,413 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26" (1/1) ... [2018-06-22 11:33:26,421 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26" (1/1) ... [2018-06-22 11:33:26,421 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26" (1/1) ... [2018-06-22 11:33:26,426 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26" (1/1) ... [2018-06-22 11:33:26,429 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26" (1/1) ... [2018-06-22 11:33:26,431 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26" (1/1) ... [2018-06-22 11:33:26,432 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:33:26,436 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:33:26,436 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:33:26,436 INFO ]: RCFGBuilder initialized [2018-06-22 11:33:26,437 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 11:33:26,451 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:33:26,451 INFO ]: Found specification of procedure False [2018-06-22 11:33:26,451 INFO ]: Found implementation of procedure False [2018-06-22 11:33:26,451 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN7 given in one single declaration [2018-06-22 11:33:26,451 INFO ]: Found specification of procedure make_arrayDLRunknownCLN7 [2018-06-22 11:33:26,451 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN7 [2018-06-22 11:33:26,451 INFO ]: Specification and implementation of procedure inc3DLRunknownCLN2 given in one single declaration [2018-06-22 11:33:26,451 INFO ]: Found specification of procedure inc3DLRunknownCLN2 [2018-06-22 11:33:26,451 INFO ]: Found implementation of procedure inc3DLRunknownCLN2 [2018-06-22 11:33:26,451 INFO ]: Specification and implementation of procedure inc3DLRunknownCLN3 given in one single declaration [2018-06-22 11:33:26,451 INFO ]: Found specification of procedure inc3DLRunknownCLN3 [2018-06-22 11:33:26,451 INFO ]: Found implementation of procedure inc3DLRunknownCLN3 [2018-06-22 11:33:26,451 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN8 given in one single declaration [2018-06-22 11:33:26,451 INFO ]: Found specification of procedure make_arrayDLRunknownCLN8 [2018-06-22 11:33:26,451 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN8 [2018-06-22 11:33:26,451 INFO ]: Specification and implementation of procedure updateDLRunknownCLN11 given in one single declaration [2018-06-22 11:33:26,452 INFO ]: Found specification of procedure updateDLRunknownCLN11 [2018-06-22 11:33:26,452 INFO ]: Found implementation of procedure updateDLRunknownCLN11 [2018-06-22 11:33:26,452 INFO ]: Specification and implementation of procedure updateDLRunknownCLN13 given in one single declaration [2018-06-22 11:33:26,452 INFO ]: Found specification of procedure updateDLRunknownCLN13 [2018-06-22 11:33:26,452 INFO ]: Found implementation of procedure updateDLRunknownCLN13 [2018-06-22 11:33:26,452 INFO ]: Specification and implementation of procedure inc3DLRunknownCLN4 given in one single declaration [2018-06-22 11:33:26,452 INFO ]: Found specification of procedure inc3DLRunknownCLN4 [2018-06-22 11:33:26,452 INFO ]: Found implementation of procedure inc3DLRunknownCLN4 [2018-06-22 11:33:26,452 INFO ]: Specification and implementation of procedure updateDLRunknownCLN14 given in one single declaration [2018-06-22 11:33:26,452 INFO ]: Found specification of procedure updateDLRunknownCLN14 [2018-06-22 11:33:26,452 INFO ]: Found implementation of procedure updateDLRunknownCLN14 [2018-06-22 11:33:26,452 INFO ]: Specification and implementation of procedure updateDLRunknownCLN12 given in one single declaration [2018-06-22 11:33:26,452 INFO ]: Found specification of procedure updateDLRunknownCLN12 [2018-06-22 11:33:26,452 INFO ]: Found implementation of procedure updateDLRunknownCLN12 [2018-06-22 11:33:26,452 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:33:26,452 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:33:26,452 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:33:26,877 INFO ]: Using library mode [2018-06-22 11:33:26,878 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:33:26 BoogieIcfgContainer [2018-06-22 11:33:26,878 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:33:26,879 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:33:26,879 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:33:26,882 INFO ]: TraceAbstraction initialized [2018-06-22 11:33:26,882 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:33:26" (1/3) ... [2018-06-22 11:33:26,883 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d4322c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:33:26, skipping insertion in model container [2018-06-22 11:33:26,883 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:26" (2/3) ... [2018-06-22 11:33:26,883 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d4322c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:33:26, skipping insertion in model container [2018-06-22 11:33:26,883 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:33:26" (3/3) ... [2018-06-22 11:33:26,885 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:33:26,891 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:33:26,898 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:33:26,938 INFO ]: Using default assertion order modulation [2018-06-22 11:33:26,938 INFO ]: Interprodecural is true [2018-06-22 11:33:26,939 INFO ]: Hoare is false [2018-06-22 11:33:26,939 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:33:26,939 INFO ]: Backedges is TWOTRACK [2018-06-22 11:33:26,939 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:33:26,939 INFO ]: Difference is false [2018-06-22 11:33:26,939 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:33:26,939 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:33:26,959 INFO ]: Start isEmpty. Operand 56 states. [2018-06-22 11:33:26,975 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:33:26,975 INFO ]: Found error trace [2018-06-22 11:33:26,976 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:33:26,976 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:33:26,979 INFO ]: Analyzing trace with hash 139614925, now seen corresponding path program 1 times [2018-06-22 11:33:26,980 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:33:26,981 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:33:27,015 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:27,015 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:33:27,015 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:27,030 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:33:27,051 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:33:27,053 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:33:27,053 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:33:27,054 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:33:27,065 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:33:27,065 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:33:27,067 INFO ]: Start difference. First operand 56 states. Second operand 2 states. [2018-06-22 11:33:27,090 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:33:27,090 INFO ]: Finished difference Result 54 states and 67 transitions. [2018-06-22 11:33:27,091 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:33:27,092 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:33:27,092 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:33:27,105 INFO ]: With dead ends: 54 [2018-06-22 11:33:27,105 INFO ]: Without dead ends: 54 [2018-06-22 11:33:27,107 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:33:27,120 INFO ]: Start minimizeSevpa. Operand 54 states. [2018-06-22 11:33:27,146 INFO ]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-06-22 11:33:27,147 INFO ]: Start removeUnreachable. Operand 54 states. [2018-06-22 11:33:27,149 INFO ]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2018-06-22 11:33:27,150 INFO ]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 5 [2018-06-22 11:33:27,151 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:33:27,151 INFO ]: Abstraction has 54 states and 67 transitions. [2018-06-22 11:33:27,151 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:33:27,151 INFO ]: Start isEmpty. Operand 54 states and 67 transitions. [2018-06-22 11:33:27,152 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:33:27,152 INFO ]: Found error trace [2018-06-22 11:33:27,152 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:33:27,153 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:33:27,153 INFO ]: Analyzing trace with hash 1171181058, now seen corresponding path program 1 times [2018-06-22 11:33:27,153 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:33:27,153 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:33:27,154 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:27,154 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:33:27,154 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:27,183 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:33:27,352 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:33:27,352 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:33:27,352 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:33:27,354 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:33:27,354 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:33:27,354 INFO ]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:33:27,354 INFO ]: Start difference. First operand 54 states and 67 transitions. Second operand 7 states. [2018-06-22 11:33:27,847 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:33:27,847 INFO ]: Finished difference Result 60 states and 78 transitions. [2018-06-22 11:33:27,848 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:33:27,848 INFO ]: Start accepts. Automaton has 7 states. Word has length 17 [2018-06-22 11:33:27,848 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:33:27,850 INFO ]: With dead ends: 60 [2018-06-22 11:33:27,850 INFO ]: Without dead ends: 60 [2018-06-22 11:33:27,851 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:33:27,851 INFO ]: Start minimizeSevpa. Operand 60 states. [2018-06-22 11:33:27,862 INFO ]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-06-22 11:33:27,862 INFO ]: Start removeUnreachable. Operand 60 states. [2018-06-22 11:33:27,864 INFO ]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2018-06-22 11:33:27,864 INFO ]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 17 [2018-06-22 11:33:27,864 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:33:27,864 INFO ]: Abstraction has 60 states and 78 transitions. [2018-06-22 11:33:27,864 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:33:27,864 INFO ]: Start isEmpty. Operand 60 states and 78 transitions. [2018-06-22 11:33:27,868 INFO ]: Finished isEmpty. Found accepting run of length 86 [2018-06-22 11:33:27,868 INFO ]: Found error trace [2018-06-22 11:33:27,868 INFO ]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:33:27,868 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:33:27,869 INFO ]: Analyzing trace with hash -791903361, now seen corresponding path program 1 times [2018-06-22 11:33:27,869 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:33:27,869 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:33:27,870 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:27,870 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:33:27,870 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:27,929 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:33:28,303 INFO ]: Checked inductivity of 102 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-06-22 11:33:28,303 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:33:28,303 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 [2018-06-22 11:33:28,319 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:33:28,388 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:33:28,400 INFO ]: Computing forward predicates... [2018-06-22 11:33:29,538 INFO ]: Checked inductivity of 102 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-06-22 11:33:29,572 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:33:29,572 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 19 [2018-06-22 11:33:29,573 INFO ]: Interpolant automaton has 19 states [2018-06-22 11:33:29,573 INFO ]: Constructing interpolant automaton starting with 19 interpolants. [2018-06-22 11:33:29,573 INFO ]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2018-06-22 11:33:29,574 INFO ]: Start difference. First operand 60 states and 78 transitions. Second operand 19 states. [2018-06-22 11:33:30,746 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:33:30,746 INFO ]: Finished difference Result 84 states and 117 transitions. [2018-06-22 11:33:30,746 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 11:33:30,746 INFO ]: Start accepts. Automaton has 19 states. Word has length 85 [2018-06-22 11:33:30,747 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:33:30,749 INFO ]: With dead ends: 84 [2018-06-22 11:33:30,749 INFO ]: Without dead ends: 84 [2018-06-22 11:33:30,749 INFO ]: 0 DeclaredPredicates, 105 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2018-06-22 11:33:30,749 INFO ]: Start minimizeSevpa. Operand 84 states. [2018-06-22 11:33:30,765 INFO ]: Finished minimizeSevpa. Reduced states from 84 to 78. [2018-06-22 11:33:30,765 INFO ]: Start removeUnreachable. Operand 78 states. [2018-06-22 11:33:30,767 INFO ]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2018-06-22 11:33:30,767 INFO ]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 85 [2018-06-22 11:33:30,768 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:33:30,768 INFO ]: Abstraction has 78 states and 109 transitions. [2018-06-22 11:33:30,768 INFO ]: Interpolant automaton has 19 states. [2018-06-22 11:33:30,768 INFO ]: Start isEmpty. Operand 78 states and 109 transitions. [2018-06-22 11:33:30,774 INFO ]: Finished isEmpty. Found accepting run of length 194 [2018-06-22 11:33:30,774 INFO ]: Found error trace [2018-06-22 11:33:30,775 INFO ]: trace histogram [15, 14, 11, 11, 11, 11, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:33:30,775 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:33:30,776 INFO ]: Analyzing trace with hash 1125924296, now seen corresponding path program 1 times [2018-06-22 11:33:30,776 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:33:30,776 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:33:30,776 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:30,776 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:33:30,776 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:30,851 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:33:31,051 INFO ]: Checked inductivity of 690 backedges. 62 proven. 32 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2018-06-22 11:33:31,051 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:33:31,051 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 [2018-06-22 11:33:31,059 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:33:31,154 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:33:31,167 INFO ]: Computing forward predicates... [2018-06-22 11:33:31,366 INFO ]: Checked inductivity of 690 backedges. 58 proven. 34 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2018-06-22 11:33:31,385 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:33:31,385 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 11 [2018-06-22 11:33:31,386 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:33:31,386 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:33:31,386 INFO ]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:33:31,387 INFO ]: Start difference. First operand 78 states and 109 transitions. Second operand 11 states. [2018-06-22 11:33:31,710 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:33:31,710 INFO ]: Finished difference Result 76 states and 108 transitions. [2018-06-22 11:33:31,710 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 11:33:31,710 INFO ]: Start accepts. Automaton has 11 states. Word has length 193 [2018-06-22 11:33:31,712 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:33:31,712 INFO ]: With dead ends: 76 [2018-06-22 11:33:31,712 INFO ]: Without dead ends: 0 [2018-06-22 11:33:31,712 INFO ]: 0 DeclaredPredicates, 203 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:33:31,712 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:33:31,712 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:33:31,712 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:33:31,712 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:33:31,712 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 193 [2018-06-22 11:33:31,712 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:33:31,712 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:33:31,712 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:33:31,713 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:33:31,713 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:33:31,717 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:33:31 BoogieIcfgContainer [2018-06-22 11:33:31,717 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:33:31,717 INFO ]: Toolchain (without parser) took 5391.08 ms. Allocated memory was 303.6 MB in the beginning and 387.4 MB in the end (delta: 83.9 MB). Free memory was 256.0 MB in the beginning and 339.0 MB in the end (delta: -83.0 MB). Peak memory consumption was 878.9 kB. Max. memory is 3.6 GB. [2018-06-22 11:33:31,720 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 303.6 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:33:31,720 INFO ]: ChcToBoogie took 58.49 ms. Allocated memory is still 303.6 MB. Free memory was 256.0 MB in the beginning and 254.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:33:31,721 INFO ]: Boogie Preprocessor took 40.79 ms. Allocated memory is still 303.6 MB. Free memory was 254.0 MB in the beginning and 252.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:33:31,721 INFO ]: RCFGBuilder took 441.73 ms. Allocated memory is still 303.6 MB. Free memory was 252.0 MB in the beginning and 238.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:33:31,722 INFO ]: TraceAbstraction took 4838.05 ms. Allocated memory was 303.6 MB in the beginning and 387.4 MB in the end (delta: 83.9 MB). Free memory was 238.0 MB in the beginning and 339.0 MB in the end (delta: -101.0 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:33:31,725 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 303.6 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 58.49 ms. Allocated memory is still 303.6 MB. Free memory was 256.0 MB in the beginning and 254.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 40.79 ms. Allocated memory is still 303.6 MB. Free memory was 254.0 MB in the beginning and 252.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 441.73 ms. Allocated memory is still 303.6 MB. Free memory was 252.0 MB in the beginning and 238.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 4838.05 ms. Allocated memory was 303.6 MB in the beginning and 387.4 MB in the end (delta: 83.9 MB). Free memory was 238.0 MB in the beginning and 339.0 MB in the end (delta: -101.0 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 56 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 4 OverallIterations, 15 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 235 SDtfs, 17 SDslu, 1299 SDs, 0 SdLazy, 774 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 317 GetRequests, 275 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=3, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 572 ConstructedInterpolants, 0 QuantifiedInterpolants, 127816 SizeOfPredicates, 20 NumberOfNonLiveVariables, 891 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1504/1584 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/inc3.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-33-31-735.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/inc3.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-33-31-735.csv Received shutdown request...