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/bsearch.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:27:39,693 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:27:39,696 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:27:39,710 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:27:39,711 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:27:39,712 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:27:39,713 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:27:39,714 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:27:39,716 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:27:39,716 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:27:39,718 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:27:39,718 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:27:39,719 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:27:39,720 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:27:39,723 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:27:39,723 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:27:39,725 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:27:39,734 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:27:39,736 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:27:39,736 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:27:39,737 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:27:39,743 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:27:39,745 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:27:39,745 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:27:39,746 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:27:39,747 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:27:39,747 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:27:39,748 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:27:39,749 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:27:39,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:27:39,749 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:27:39,750 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:27:39,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:27:39,756 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:27:39,757 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:27:39,757 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 11:27:39,777 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:27:39,777 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:27:39,778 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:27:39,778 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:27:39,779 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:27:39,779 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:27:39,779 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:27:39,779 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:27:39,780 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:27:39,780 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:27:39,780 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:27:39,781 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:27:39,781 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:27:39,781 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:27:39,781 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:27:39,781 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:27:39,781 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:27:39,782 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:27:39,782 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:27:39,783 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:27:39,783 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:27:39,823 INFO ]: Repository-Root is: /tmp [2018-06-22 11:27:39,841 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:27:39,848 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:27:39,849 INFO ]: Initializing SmtParser... [2018-06-22 11:27:39,850 INFO ]: SmtParser initialized [2018-06-22 11:27:39,851 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 [2018-06-22 11:27:39,852 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 11:27:39,944 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 unknown [2018-06-22 11:27:40,287 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 [2018-06-22 11:27:40,296 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:27:40,303 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:27:40,304 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:27:40,304 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:27:40,304 INFO ]: ChcToBoogie initialized [2018-06-22 11:27:40,308 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:27:40" (1/1) ... [2018-06-22 11:27:40,362 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40 Unit [2018-06-22 11:27:40,362 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:27:40,363 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:27:40,363 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:27:40,363 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:27:40,386 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40" (1/1) ... [2018-06-22 11:27:40,387 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40" (1/1) ... [2018-06-22 11:27:40,399 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40" (1/1) ... [2018-06-22 11:27:40,399 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40" (1/1) ... [2018-06-22 11:27:40,414 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40" (1/1) ... [2018-06-22 11:27:40,417 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40" (1/1) ... [2018-06-22 11:27:40,418 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40" (1/1) ... [2018-06-22 11:27:40,429 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:27:40,430 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:27:40,430 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:27:40,430 INFO ]: RCFGBuilder initialized [2018-06-22 11:27:40,431 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40" (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 [2018-06-22 11:27:40,439 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:27:40,440 INFO ]: Found specification of procedure False [2018-06-22 11:27:40,440 INFO ]: Found implementation of procedure False [2018-06-22 11:27:40,440 INFO ]: Specification and implementation of procedure updateDLRunknownCLN18 given in one single declaration [2018-06-22 11:27:40,440 INFO ]: Found specification of procedure updateDLRunknownCLN18 [2018-06-22 11:27:40,440 INFO ]: Found implementation of procedure updateDLRunknownCLN18 [2018-06-22 11:27:40,440 INFO ]: Specification and implementation of procedure subDLRunknownCLN14 given in one single declaration [2018-06-22 11:27:40,440 INFO ]: Found specification of procedure subDLRunknownCLN14 [2018-06-22 11:27:40,440 INFO ]: Found implementation of procedure subDLRunknownCLN14 [2018-06-22 11:27:40,440 INFO ]: Specification and implementation of procedure bs_auxDLRunknownCLN6 given in one single declaration [2018-06-22 11:27:40,440 INFO ]: Found specification of procedure bs_auxDLRunknownCLN6 [2018-06-22 11:27:40,440 INFO ]: Found implementation of procedure bs_auxDLRunknownCLN6 [2018-06-22 11:27:40,440 INFO ]: Specification and implementation of procedure bsearchDLRunknownCLN9 given in one single declaration [2018-06-22 11:27:40,440 INFO ]: Found specification of procedure bsearchDLRunknownCLN9 [2018-06-22 11:27:40,440 INFO ]: Found implementation of procedure bsearchDLRunknownCLN9 [2018-06-22 11:27:40,440 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN12 given in one single declaration [2018-06-22 11:27:40,440 INFO ]: Found specification of procedure make_arrayDLRunknownCLN12 [2018-06-22 11:27:40,440 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN12 [2018-06-22 11:27:40,440 INFO ]: Specification and implementation of procedure arraysizeDLRunknownCLN2 given in one single declaration [2018-06-22 11:27:40,440 INFO ]: Found specification of procedure arraysizeDLRunknownCLN2 [2018-06-22 11:27:40,440 INFO ]: Found implementation of procedure arraysizeDLRunknownCLN2 [2018-06-22 11:27:40,440 INFO ]: Specification and implementation of procedure subDLRunknownCLN15 given in one single declaration [2018-06-22 11:27:40,440 INFO ]: Found specification of procedure subDLRunknownCLN15 [2018-06-22 11:27:40,440 INFO ]: Found implementation of procedure subDLRunknownCLN15 [2018-06-22 11:27:40,440 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:27:40,440 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:27:40,440 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:27:40,856 INFO ]: Using library mode [2018-06-22 11:27:40,857 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:27:40 BoogieIcfgContainer [2018-06-22 11:27:40,857 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:27:40,858 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:27:40,858 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:27:40,862 INFO ]: TraceAbstraction initialized [2018-06-22 11:27:40,862 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:27:40" (1/3) ... [2018-06-22 11:27:40,863 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5029e7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:27:40, skipping insertion in model container [2018-06-22 11:27:40,863 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:40" (2/3) ... [2018-06-22 11:27:40,864 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5029e7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:27:40, skipping insertion in model container [2018-06-22 11:27:40,864 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:27:40" (3/3) ... [2018-06-22 11:27:40,866 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:27:40,876 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:27:40,890 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:27:40,933 INFO ]: Using default assertion order modulation [2018-06-22 11:27:40,934 INFO ]: Interprodecural is true [2018-06-22 11:27:40,934 INFO ]: Hoare is false [2018-06-22 11:27:40,934 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:27:40,934 INFO ]: Backedges is TWOTRACK [2018-06-22 11:27:40,934 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:27:40,934 INFO ]: Difference is false [2018-06-22 11:27:40,934 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:27:40,934 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:27:40,949 INFO ]: Start isEmpty. Operand 41 states. [2018-06-22 11:27:40,962 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:27:40,962 INFO ]: Found error trace [2018-06-22 11:27:40,963 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:27:40,963 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:27:40,969 INFO ]: Analyzing trace with hash 131281822, now seen corresponding path program 1 times [2018-06-22 11:27:40,972 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:27:40,972 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:27:41,014 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:41,014 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:41,014 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:41,032 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:41,055 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:27:41,056 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:27:41,057 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:27:41,058 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:27:41,069 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:27:41,070 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:27:41,073 INFO ]: Start difference. First operand 41 states. Second operand 2 states. [2018-06-22 11:27:41,098 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:27:41,098 INFO ]: Finished difference Result 37 states and 43 transitions. [2018-06-22 11:27:41,098 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:27:41,099 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:27:41,102 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:27:41,126 INFO ]: With dead ends: 37 [2018-06-22 11:27:41,126 INFO ]: Without dead ends: 35 [2018-06-22 11:27:41,127 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 11:27:41,142 INFO ]: Start minimizeSevpa. Operand 35 states. [2018-06-22 11:27:41,172 INFO ]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-06-22 11:27:41,173 INFO ]: Start removeUnreachable. Operand 35 states. [2018-06-22 11:27:41,175 INFO ]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2018-06-22 11:27:41,176 INFO ]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 5 [2018-06-22 11:27:41,176 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:27:41,176 INFO ]: Abstraction has 35 states and 41 transitions. [2018-06-22 11:27:41,176 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:27:41,177 INFO ]: Start isEmpty. Operand 35 states and 41 transitions. [2018-06-22 11:27:41,180 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 11:27:41,180 INFO ]: Found error trace [2018-06-22 11:27:41,180 INFO ]: trace histogram [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] [2018-06-22 11:27:41,180 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:27:41,180 INFO ]: Analyzing trace with hash 1650582260, now seen corresponding path program 1 times [2018-06-22 11:27:41,180 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:27:41,180 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:27:41,181 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:41,181 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:41,181 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:41,235 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:41,530 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:27:41,530 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:27:41,530 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 11:27:41,532 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:27:41,532 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:27:41,532 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:27:41,533 INFO ]: Start difference. First operand 35 states and 41 transitions. Second operand 8 states. [2018-06-22 11:27:41,922 WARN ]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-06-22 11:27:42,195 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:27:42,195 INFO ]: Finished difference Result 39 states and 47 transitions. [2018-06-22 11:27:42,196 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:27:42,196 INFO ]: Start accepts. Automaton has 8 states. Word has length 29 [2018-06-22 11:27:42,196 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:27:42,197 INFO ]: With dead ends: 39 [2018-06-22 11:27:42,197 INFO ]: Without dead ends: 39 [2018-06-22 11:27:42,198 INFO ]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-06-22 11:27:42,199 INFO ]: Start minimizeSevpa. Operand 39 states. [2018-06-22 11:27:42,214 INFO ]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-06-22 11:27:42,214 INFO ]: Start removeUnreachable. Operand 39 states. [2018-06-22 11:27:42,215 INFO ]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2018-06-22 11:27:42,215 INFO ]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 29 [2018-06-22 11:27:42,216 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:27:42,216 INFO ]: Abstraction has 39 states and 47 transitions. [2018-06-22 11:27:42,216 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:27:42,216 INFO ]: Start isEmpty. Operand 39 states and 47 transitions. [2018-06-22 11:27:42,220 INFO ]: Finished isEmpty. Found accepting run of length 62 [2018-06-22 11:27:42,220 INFO ]: Found error trace [2018-06-22 11:27:42,220 INFO ]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2018-06-22 11:27:42,220 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:27:42,220 INFO ]: Analyzing trace with hash -2023487838, now seen corresponding path program 1 times [2018-06-22 11:27:42,220 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:27:42,220 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:27:42,221 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:42,221 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:42,221 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:42,297 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:42,645 INFO ]: Checked inductivity of 41 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-06-22 11:27:42,645 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:27:42,645 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 11:27:42,662 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:27:42,720 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:42,731 INFO ]: Computing forward predicates... [2018-06-22 11:27:43,372 INFO ]: Checked inductivity of 41 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-06-22 11:27:43,407 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:27:43,407 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2018-06-22 11:27:43,408 INFO ]: Interpolant automaton has 14 states [2018-06-22 11:27:43,408 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 11:27:43,408 INFO ]: CoverageRelationStatistics Valid=30, Invalid=151, Unknown=1, NotChecked=0, Total=182 [2018-06-22 11:27:43,408 INFO ]: Start difference. First operand 39 states and 47 transitions. Second operand 14 states. [2018-06-22 11:27:44,121 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:27:44,121 INFO ]: Finished difference Result 46 states and 59 transitions. [2018-06-22 11:27:44,121 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 11:27:44,121 INFO ]: Start accepts. Automaton has 14 states. Word has length 61 [2018-06-22 11:27:44,122 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:27:44,123 INFO ]: With dead ends: 46 [2018-06-22 11:27:44,123 INFO ]: Without dead ends: 46 [2018-06-22 11:27:44,123 INFO ]: 0 DeclaredPredicates, 76 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2018-06-22 11:27:44,123 INFO ]: Start minimizeSevpa. Operand 46 states. [2018-06-22 11:27:44,130 INFO ]: Finished minimizeSevpa. Reduced states from 46 to 40. [2018-06-22 11:27:44,130 INFO ]: Start removeUnreachable. Operand 40 states. [2018-06-22 11:27:44,131 INFO ]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2018-06-22 11:27:44,131 INFO ]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 61 [2018-06-22 11:27:44,131 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:27:44,131 INFO ]: Abstraction has 40 states and 49 transitions. [2018-06-22 11:27:44,131 INFO ]: Interpolant automaton has 14 states. [2018-06-22 11:27:44,131 INFO ]: Start isEmpty. Operand 40 states and 49 transitions. [2018-06-22 11:27:44,133 INFO ]: Finished isEmpty. Found accepting run of length 62 [2018-06-22 11:27:44,133 INFO ]: Found error trace [2018-06-22 11:27:44,133 INFO ]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2018-06-22 11:27:44,133 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:27:44,134 INFO ]: Analyzing trace with hash 416872428, now seen corresponding path program 1 times [2018-06-22 11:27:44,134 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:27:44,134 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:27:44,135 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:44,135 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:44,135 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:44,159 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:44,501 INFO ]: Checked inductivity of 41 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-22 11:27:44,501 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:27:44,501 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 11:27:44,517 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:44,568 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:44,572 INFO ]: Computing forward predicates... [2018-06-22 11:27:44,635 INFO ]: Checked inductivity of 41 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-06-22 11:27:44,654 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:27:44,654 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 11 [2018-06-22 11:27:44,655 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:27:44,655 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:27:44,655 INFO ]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:27:44,655 INFO ]: Start difference. First operand 40 states and 49 transitions. Second operand 11 states. [2018-06-22 11:27:44,883 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:27:44,883 INFO ]: Finished difference Result 31 states and 36 transitions. [2018-06-22 11:27:44,885 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 11:27:44,885 INFO ]: Start accepts. Automaton has 11 states. Word has length 61 [2018-06-22 11:27:44,885 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:27:44,885 INFO ]: With dead ends: 31 [2018-06-22 11:27:44,885 INFO ]: Without dead ends: 0 [2018-06-22 11:27:44,886 INFO ]: 0 DeclaredPredicates, 73 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2018-06-22 11:27:44,886 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:27:44,886 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:27:44,886 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:27:44,886 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:27:44,886 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2018-06-22 11:27:44,886 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:27:44,886 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:27:44,886 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:27:44,886 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:27:44,886 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:27:44,890 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:27:44 BoogieIcfgContainer [2018-06-22 11:27:44,890 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:27:44,891 INFO ]: Toolchain (without parser) took 4594.45 ms. Allocated memory was 304.6 MB in the beginning and 324.5 MB in the end (delta: 19.9 MB). Free memory was 255.0 MB in the beginning and 171.3 MB in the end (delta: 83.7 MB). Peak memory consumption was 103.6 MB. Max. memory is 3.6 GB. [2018-06-22 11:27:44,891 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 304.6 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:27:44,891 INFO ]: ChcToBoogie took 58.48 ms. Allocated memory is still 304.6 MB. Free memory was 255.0 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:27:44,892 INFO ]: Boogie Preprocessor took 66.53 ms. Allocated memory is still 304.6 MB. Free memory was 253.0 MB in the beginning and 251.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:27:44,892 INFO ]: RCFGBuilder took 427.04 ms. Allocated memory is still 304.6 MB. Free memory was 251.0 MB in the beginning and 237.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:27:44,892 INFO ]: TraceAbstraction took 4031.76 ms. Allocated memory was 304.6 MB in the beginning and 324.5 MB in the end (delta: 19.9 MB). Free memory was 237.0 MB in the beginning and 171.3 MB in the end (delta: 65.8 MB). Peak memory consumption was 85.7 MB. Max. memory is 3.6 GB. [2018-06-22 11:27:44,903 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 304.6 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 58.48 ms. Allocated memory is still 304.6 MB. Free memory was 255.0 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 66.53 ms. Allocated memory is still 304.6 MB. Free memory was 253.0 MB in the beginning and 251.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 427.04 ms. Allocated memory is still 304.6 MB. Free memory was 251.0 MB in the beginning and 237.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 4031.76 ms. Allocated memory was 304.6 MB in the beginning and 324.5 MB in the end (delta: 19.9 MB). Free memory was 237.0 MB in the beginning and 171.3 MB in the end (delta: 65.8 MB). Peak memory consumption was 85.7 MB. 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 9 procedures, 41 locations, 1 error locations. SAFE Result, 3.9s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 142 SDtfs, 12 SDslu, 674 SDs, 0 SdLazy, 293 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 272 ConstructedInterpolants, 2 QuantifiedInterpolants, 33488 SizeOfPredicates, 22 NumberOfNonLiveVariables, 415 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 129/167 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/bsearch.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-27-44-921.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bsearch.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-27-44-921.csv Received shutdown request...