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/bcopy.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:27:32,103 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:27:32,105 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:27:32,118 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:27:32,118 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:27:32,119 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:27:32,121 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:27:32,124 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:27:32,125 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:27:32,126 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:27:32,127 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:27:32,127 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:27:32,128 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:27:32,133 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:27:32,134 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:27:32,134 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:27:32,139 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:27:32,141 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:27:32,147 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:27:32,149 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:27:32,150 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:27:32,154 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:27:32,155 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:27:32,155 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:27:32,156 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:27:32,156 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:27:32,159 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:27:32,160 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:27:32,161 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:27:32,161 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:27:32,164 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:27:32,165 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:27:32,165 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:27:32,166 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:27:32,167 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:27:32,167 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 11:27:32,183 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:27:32,183 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:27:32,183 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:27:32,183 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:27:32,185 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:27:32,185 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:27:32,185 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:27:32,185 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:27:32,185 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:27:32,186 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:27:32,186 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:27:32,186 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:27:32,186 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:27:32,186 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:27:32,187 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:27:32,187 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:27:32,187 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:27:32,187 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:27:32,187 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:27:32,189 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:27:32,189 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:27:32,238 INFO ]: Repository-Root is: /tmp [2018-06-22 11:27:32,260 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:27:32,264 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:27:32,266 INFO ]: Initializing SmtParser... [2018-06-22 11:27:32,266 INFO ]: SmtParser initialized [2018-06-22 11:27:32,268 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/bcopy.smt2 [2018-06-22 11:27:32,269 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 11:27:32,366 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/bcopy.smt2 unknown [2018-06-22 11:27:32,650 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/bcopy.smt2 [2018-06-22 11:27:32,655 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:27:32,663 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:27:32,664 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:27:32,664 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:27:32,664 INFO ]: ChcToBoogie initialized [2018-06-22 11:27:32,668 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:27:32" (1/1) ... [2018-06-22 11:27:32,725 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32 Unit [2018-06-22 11:27:32,725 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:27:32,726 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:27:32,728 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:27:32,728 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:27:32,749 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32" (1/1) ... [2018-06-22 11:27:32,749 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32" (1/1) ... [2018-06-22 11:27:32,759 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32" (1/1) ... [2018-06-22 11:27:32,759 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32" (1/1) ... [2018-06-22 11:27:32,765 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32" (1/1) ... [2018-06-22 11:27:32,767 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32" (1/1) ... [2018-06-22 11:27:32,779 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32" (1/1) ... [2018-06-22 11:27:32,781 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:27:32,782 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:27:32,782 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:27:32,782 INFO ]: RCFGBuilder initialized [2018-06-22 11:27:32,783 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32" (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 11:27:32,805 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:27:32,805 INFO ]: Found specification of procedure False [2018-06-22 11:27:32,805 INFO ]: Found implementation of procedure False [2018-06-22 11:27:32,805 INFO ]: Specification and implementation of procedure subDLRunknownCLN14 given in one single declaration [2018-06-22 11:27:32,805 INFO ]: Found specification of procedure subDLRunknownCLN14 [2018-06-22 11:27:32,805 INFO ]: Found implementation of procedure subDLRunknownCLN14 [2018-06-22 11:27:32,806 INFO ]: Specification and implementation of procedure bcopy_auxDLRunknownCLN9 given in one single declaration [2018-06-22 11:27:32,806 INFO ]: Found specification of procedure bcopy_auxDLRunknownCLN9 [2018-06-22 11:27:32,806 INFO ]: Found implementation of procedure bcopy_auxDLRunknownCLN9 [2018-06-22 11:27:32,806 INFO ]: Specification and implementation of procedure updateDLRunknownCLN19 given in one single declaration [2018-06-22 11:27:32,806 INFO ]: Found specification of procedure updateDLRunknownCLN19 [2018-06-22 11:27:32,806 INFO ]: Found implementation of procedure updateDLRunknownCLN19 [2018-06-22 11:27:32,806 INFO ]: Specification and implementation of procedure subDLRunknownCLN15 given in one single declaration [2018-06-22 11:27:32,806 INFO ]: Found specification of procedure subDLRunknownCLN15 [2018-06-22 11:27:32,806 INFO ]: Found implementation of procedure subDLRunknownCLN15 [2018-06-22 11:27:32,806 INFO ]: Specification and implementation of procedure arraysizeDLRunknownCLN2 given in one single declaration [2018-06-22 11:27:32,806 INFO ]: Found specification of procedure arraysizeDLRunknownCLN2 [2018-06-22 11:27:32,806 INFO ]: Found implementation of procedure arraysizeDLRunknownCLN2 [2018-06-22 11:27:32,806 INFO ]: Specification and implementation of procedure bcopyDLRunknownCLN4 given in one single declaration [2018-06-22 11:27:32,806 INFO ]: Found specification of procedure bcopyDLRunknownCLN4 [2018-06-22 11:27:32,806 INFO ]: Found implementation of procedure bcopyDLRunknownCLN4 [2018-06-22 11:27:32,806 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN12 given in one single declaration [2018-06-22 11:27:32,806 INFO ]: Found specification of procedure make_arrayDLRunknownCLN12 [2018-06-22 11:27:32,806 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN12 [2018-06-22 11:27:32,806 INFO ]: Specification and implementation of procedure updateDLRunknownCLN18 given in one single declaration [2018-06-22 11:27:32,806 INFO ]: Found specification of procedure updateDLRunknownCLN18 [2018-06-22 11:27:32,806 INFO ]: Found implementation of procedure updateDLRunknownCLN18 [2018-06-22 11:27:32,806 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:27:32,806 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:27:32,806 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 11:27:33,329 INFO ]: Using library mode [2018-06-22 11:27:33,330 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:27:33 BoogieIcfgContainer [2018-06-22 11:27:33,330 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:27:33,331 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:27:33,331 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:27:33,337 INFO ]: TraceAbstraction initialized [2018-06-22 11:27:33,337 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:27:32" (1/3) ... [2018-06-22 11:27:33,338 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a54ef00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:27:33, skipping insertion in model container [2018-06-22 11:27:33,338 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:27:32" (2/3) ... [2018-06-22 11:27:33,338 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a54ef00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:27:33, skipping insertion in model container [2018-06-22 11:27:33,338 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:27:33" (3/3) ... [2018-06-22 11:27:33,340 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:27:33,346 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:27:33,353 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:27:33,395 INFO ]: Using default assertion order modulation [2018-06-22 11:27:33,395 INFO ]: Interprodecural is true [2018-06-22 11:27:33,395 INFO ]: Hoare is false [2018-06-22 11:27:33,395 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:27:33,396 INFO ]: Backedges is TWOTRACK [2018-06-22 11:27:33,396 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:27:33,396 INFO ]: Difference is false [2018-06-22 11:27:33,396 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:27:33,396 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:27:33,410 INFO ]: Start isEmpty. Operand 46 states. [2018-06-22 11:27:33,421 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:27:33,421 INFO ]: Found error trace [2018-06-22 11:27:33,421 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:27:33,422 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:27:33,426 INFO ]: Analyzing trace with hash 133102987, now seen corresponding path program 1 times [2018-06-22 11:27:33,427 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:27:33,427 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:27:33,460 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:33,460 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:33,460 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:33,473 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:33,496 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:27:33,499 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:27:33,499 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:27:33,501 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:27:33,516 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:27:33,517 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:27:33,519 INFO ]: Start difference. First operand 46 states. Second operand 2 states. [2018-06-22 11:27:33,541 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:27:33,543 INFO ]: Finished difference Result 44 states and 51 transitions. [2018-06-22 11:27:33,543 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:27:33,544 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:27:33,545 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:27:33,565 INFO ]: With dead ends: 44 [2018-06-22 11:27:33,565 INFO ]: Without dead ends: 44 [2018-06-22 11:27:33,566 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 11:27:33,579 INFO ]: Start minimizeSevpa. Operand 44 states. [2018-06-22 11:27:33,599 INFO ]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-06-22 11:27:33,600 INFO ]: Start removeUnreachable. Operand 44 states. [2018-06-22 11:27:33,602 INFO ]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-06-22 11:27:33,603 INFO ]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 5 [2018-06-22 11:27:33,604 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:27:33,604 INFO ]: Abstraction has 44 states and 51 transitions. [2018-06-22 11:27:33,604 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:27:33,604 INFO ]: Start isEmpty. Operand 44 states and 51 transitions. [2018-06-22 11:27:33,606 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 11:27:33,606 INFO ]: Found error trace [2018-06-22 11:27:33,606 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 11:27:33,606 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:27:33,607 INFO ]: Analyzing trace with hash -2097060323, now seen corresponding path program 1 times [2018-06-22 11:27:33,607 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:27:33,607 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:27:33,607 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:33,607 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:33,608 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:33,646 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:33,980 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:27:33,980 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:27:33,980 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 11:27:33,982 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:27:33,982 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:27:33,982 INFO ]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:27:33,983 INFO ]: Start difference. First operand 44 states and 51 transitions. Second operand 8 states. [2018-06-22 11:27:34,445 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:27:34,445 INFO ]: Finished difference Result 50 states and 59 transitions. [2018-06-22 11:27:34,445 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:27:34,445 INFO ]: Start accepts. Automaton has 8 states. Word has length 29 [2018-06-22 11:27:34,445 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:27:34,447 INFO ]: With dead ends: 50 [2018-06-22 11:27:34,447 INFO ]: Without dead ends: 50 [2018-06-22 11:27:34,448 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:27:34,448 INFO ]: Start minimizeSevpa. Operand 50 states. [2018-06-22 11:27:34,461 INFO ]: Finished minimizeSevpa. Reduced states from 50 to 48. [2018-06-22 11:27:34,461 INFO ]: Start removeUnreachable. Operand 48 states. [2018-06-22 11:27:34,463 INFO ]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2018-06-22 11:27:34,463 INFO ]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 29 [2018-06-22 11:27:34,463 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:27:34,463 INFO ]: Abstraction has 48 states and 57 transitions. [2018-06-22 11:27:34,463 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:27:34,463 INFO ]: Start isEmpty. Operand 48 states and 57 transitions. [2018-06-22 11:27:34,465 INFO ]: Finished isEmpty. Found accepting run of length 58 [2018-06-22 11:27:34,465 INFO ]: Found error trace [2018-06-22 11:27:34,465 INFO ]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1] [2018-06-22 11:27:34,465 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:27:34,466 INFO ]: Analyzing trace with hash 306707700, now seen corresponding path program 1 times [2018-06-22 11:27:34,466 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:27:34,466 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:27:34,466 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:34,466 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:34,466 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:34,512 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:34,984 INFO ]: Checked inductivity of 31 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 11:27:34,984 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:27:34,985 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 11:27:34,998 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:35,059 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:35,075 INFO ]: Computing forward predicates... [2018-06-22 11:27:35,753 INFO ]: Checked inductivity of 31 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-06-22 11:27:35,785 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:27:35,785 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 18 [2018-06-22 11:27:35,786 INFO ]: Interpolant automaton has 18 states [2018-06-22 11:27:35,786 INFO ]: Constructing interpolant automaton starting with 18 interpolants. [2018-06-22 11:27:35,786 INFO ]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2018-06-22 11:27:35,786 INFO ]: Start difference. First operand 48 states and 57 transitions. Second operand 18 states. [2018-06-22 11:27:36,180 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:27:36,180 INFO ]: Finished difference Result 48 states and 56 transitions. [2018-06-22 11:27:36,182 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-22 11:27:36,182 INFO ]: Start accepts. Automaton has 18 states. Word has length 57 [2018-06-22 11:27:36,182 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:27:36,185 INFO ]: With dead ends: 48 [2018-06-22 11:27:36,185 INFO ]: Without dead ends: 47 [2018-06-22 11:27:36,186 INFO ]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2018-06-22 11:27:36,186 INFO ]: Start minimizeSevpa. Operand 47 states. [2018-06-22 11:27:36,191 INFO ]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-06-22 11:27:36,191 INFO ]: Start removeUnreachable. Operand 47 states. [2018-06-22 11:27:36,193 INFO ]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2018-06-22 11:27:36,193 INFO ]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 57 [2018-06-22 11:27:36,194 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:27:36,194 INFO ]: Abstraction has 47 states and 54 transitions. [2018-06-22 11:27:36,194 INFO ]: Interpolant automaton has 18 states. [2018-06-22 11:27:36,194 INFO ]: Start isEmpty. Operand 47 states and 54 transitions. [2018-06-22 11:27:36,197 INFO ]: Finished isEmpty. Found accepting run of length 118 [2018-06-22 11:27:36,198 INFO ]: Found error trace [2018-06-22 11:27:36,198 INFO ]: trace histogram [8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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 11:27:36,198 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:27:36,198 INFO ]: Analyzing trace with hash 1384877979, now seen corresponding path program 1 times [2018-06-22 11:27:36,198 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:27:36,198 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:27:36,199 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:36,199 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:27:36,199 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:27:36,242 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:36,523 INFO ]: Checked inductivity of 190 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2018-06-22 11:27:36,523 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:27:36,523 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) [2018-06-22 11:27:36,538 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:27:36,613 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:27:36,622 INFO ]: Computing forward predicates... [2018-06-22 11:27:36,731 INFO ]: Checked inductivity of 190 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2018-06-22 11:27:36,751 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:27:36,752 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-06-22 11:27:36,752 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:27:36,752 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:27:36,752 INFO ]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:27:36,752 INFO ]: Start difference. First operand 47 states and 54 transitions. Second operand 11 states. [2018-06-22 11:27:36,959 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:27:36,959 INFO ]: Finished difference Result 43 states and 50 transitions. [2018-06-22 11:27:36,960 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 11:27:36,960 INFO ]: Start accepts. Automaton has 11 states. Word has length 117 [2018-06-22 11:27:36,961 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:27:36,961 INFO ]: With dead ends: 43 [2018-06-22 11:27:36,961 INFO ]: Without dead ends: 0 [2018-06-22 11:27:36,961 INFO ]: 0 DeclaredPredicates, 131 GetRequests, 117 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-06-22 11:27:36,961 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:27:36,962 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:27:36,962 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:27:36,962 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:27:36,962 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2018-06-22 11:27:36,962 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:27:36,962 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:27:36,962 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:27:36,962 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:27:36,962 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:27:36,968 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:27:36 BoogieIcfgContainer [2018-06-22 11:27:36,968 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:27:36,969 INFO ]: Toolchain (without parser) took 4312.86 ms. Allocated memory was 303.0 MB in the beginning and 346.6 MB in the end (delta: 43.5 MB). Free memory was 255.4 MB in the beginning and 280.9 MB in the end (delta: -25.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:27:36,970 INFO ]: SmtParser took 0.11 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:27:36,971 INFO ]: ChcToBoogie took 61.30 ms. Allocated memory is still 303.0 MB. Free memory was 255.4 MB in the beginning and 253.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:27:36,971 INFO ]: Boogie Preprocessor took 55.62 ms. Allocated memory is still 303.0 MB. Free memory was 253.4 MB in the beginning and 251.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:27:36,973 INFO ]: RCFGBuilder took 548.08 ms. Allocated memory is still 303.0 MB. Free memory was 251.4 MB in the beginning and 239.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:27:36,973 INFO ]: TraceAbstraction took 3636.69 ms. Allocated memory was 303.0 MB in the beginning and 346.6 MB in the end (delta: 43.5 MB). Free memory was 238.3 MB in the beginning and 280.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 902.6 kB. Max. memory is 3.6 GB. [2018-06-22 11:27:36,977 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.11 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 61.30 ms. Allocated memory is still 303.0 MB. Free memory was 255.4 MB in the beginning and 253.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 55.62 ms. Allocated memory is still 303.0 MB. Free memory was 253.4 MB in the beginning and 251.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 548.08 ms. Allocated memory is still 303.0 MB. Free memory was 251.4 MB in the beginning and 239.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3636.69 ms. Allocated memory was 303.0 MB in the beginning and 346.6 MB in the end (delta: 43.5 MB). Free memory was 238.3 MB in the beginning and 280.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 902.6 kB. 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 10 procedures, 46 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 4 OverallIterations, 8 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 177 SDtfs, 11 SDslu, 1034 SDs, 0 SdLazy, 328 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 173 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=2, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 58592 SizeOfPredicates, 25 NumberOfNonLiveVariables, 509 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 415/445 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/bcopy.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-27-36-989.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bcopy.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-27-36-989.csv Received shutdown request...