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/fpice/inductive6.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:25:35,475 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:25:35,479 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:25:35,492 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:25:35,492 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:25:35,493 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:25:35,494 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:25:35,501 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:25:35,503 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:25:35,504 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:25:35,504 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:25:35,506 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:25:35,508 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:25:35,509 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:25:35,509 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:25:35,513 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:25:35,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:25:35,528 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:25:35,529 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:25:35,530 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:25:35,531 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:25:35,533 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:25:35,534 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:25:35,534 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:25:35,535 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:25:35,536 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:25:35,537 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:25:35,537 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:25:35,538 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:25:35,538 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:25:35,539 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:25:35,540 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:25:35,540 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:25:35,540 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:25:35,541 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:25:35,541 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 11:25:35,562 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:25:35,562 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:25:35,563 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:25:35,563 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:25:35,564 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:25:35,564 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:25:35,564 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:25:35,564 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:25:35,565 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:25:35,565 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:25:35,565 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:25:35,565 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:25:35,565 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:25:35,566 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:25:35,566 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:25:35,567 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:25:35,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:25:35,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:25:35,567 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:25:35,569 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:25:35,569 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:25:35,619 INFO ]: Repository-Root is: /tmp [2018-06-22 11:25:35,635 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:25:35,641 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:25:35,642 INFO ]: Initializing SmtParser... [2018-06-22 11:25:35,642 INFO ]: SmtParser initialized [2018-06-22 11:25:35,643 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/fpice/inductive6.smt2 [2018-06-22 11:25:35,644 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 11:25:35,735 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/fpice/inductive6.smt2 unknown [2018-06-22 11:25:35,915 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/fpice/inductive6.smt2 [2018-06-22 11:25:35,923 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:25:35,933 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:25:35,934 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:25:35,934 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:25:35,934 INFO ]: ChcToBoogie initialized [2018-06-22 11:25:35,937 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:25:35" (1/1) ... [2018-06-22 11:25:35,983 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35 Unit [2018-06-22 11:25:35,983 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:25:35,984 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:25:35,984 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:25:35,984 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:25:36,006 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35" (1/1) ... [2018-06-22 11:25:36,006 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35" (1/1) ... [2018-06-22 11:25:36,011 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35" (1/1) ... [2018-06-22 11:25:36,011 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35" (1/1) ... [2018-06-22 11:25:36,013 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35" (1/1) ... [2018-06-22 11:25:36,015 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35" (1/1) ... [2018-06-22 11:25:36,015 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35" (1/1) ... [2018-06-22 11:25:36,016 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:25:36,017 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:25:36,017 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:25:36,017 INFO ]: RCFGBuilder initialized [2018-06-22 11:25:36,017 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35" (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 11:25:36,028 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:25:36,028 INFO ]: Found specification of procedure False [2018-06-22 11:25:36,028 INFO ]: Found implementation of procedure False [2018-06-22 11:25:36,028 INFO ]: Specification and implementation of procedure fDLRunknownCLN6 given in one single declaration [2018-06-22 11:25:36,028 INFO ]: Found specification of procedure fDLRunknownCLN6 [2018-06-22 11:25:36,028 INFO ]: Found implementation of procedure fDLRunknownCLN6 [2018-06-22 11:25:36,028 INFO ]: Specification and implementation of procedure fDLRunknownCLN4 given in one single declaration [2018-06-22 11:25:36,028 INFO ]: Found specification of procedure fDLRunknownCLN4 [2018-06-22 11:25:36,028 INFO ]: Found implementation of procedure fDLRunknownCLN4 [2018-06-22 11:25:36,028 INFO ]: Specification and implementation of procedure decrDLRunknownCLN2 given in one single declaration [2018-06-22 11:25:36,028 INFO ]: Found specification of procedure decrDLRunknownCLN2 [2018-06-22 11:25:36,028 INFO ]: Found implementation of procedure decrDLRunknownCLN2 [2018-06-22 11:25:36,028 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:25:36,028 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:25:36,028 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:25:36,234 INFO ]: Using library mode [2018-06-22 11:25:36,235 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:25:36 BoogieIcfgContainer [2018-06-22 11:25:36,235 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:25:36,242 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:25:36,242 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:25:36,245 INFO ]: TraceAbstraction initialized [2018-06-22 11:25:36,245 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:25:35" (1/3) ... [2018-06-22 11:25:36,246 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4420bc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:25:36, skipping insertion in model container [2018-06-22 11:25:36,246 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:35" (2/3) ... [2018-06-22 11:25:36,246 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4420bc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:25:36, skipping insertion in model container [2018-06-22 11:25:36,246 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:25:36" (3/3) ... [2018-06-22 11:25:36,257 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:25:36,267 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:25:36,277 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:25:36,326 INFO ]: Using default assertion order modulation [2018-06-22 11:25:36,326 INFO ]: Interprodecural is true [2018-06-22 11:25:36,326 INFO ]: Hoare is false [2018-06-22 11:25:36,327 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:25:36,327 INFO ]: Backedges is TWOTRACK [2018-06-22 11:25:36,327 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:25:36,327 INFO ]: Difference is false [2018-06-22 11:25:36,327 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:25:36,327 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:25:36,345 INFO ]: Start isEmpty. Operand 20 states. [2018-06-22 11:25:36,362 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:25:36,362 INFO ]: Found error trace [2018-06-22 11:25:36,363 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:25:36,363 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:25:36,368 INFO ]: Analyzing trace with hash 63397401, now seen corresponding path program 1 times [2018-06-22 11:25:36,370 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:25:36,370 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:25:36,409 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:36,409 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:25:36,409 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:36,422 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:25:36,451 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:25:36,453 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:25:36,453 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:25:36,454 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:25:36,465 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:25:36,465 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:25:36,467 INFO ]: Start difference. First operand 20 states. Second operand 2 states. [2018-06-22 11:25:36,484 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:25:36,484 INFO ]: Finished difference Result 18 states and 18 transitions. [2018-06-22 11:25:36,484 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:25:36,485 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:25:36,486 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:25:36,505 INFO ]: With dead ends: 18 [2018-06-22 11:25:36,505 INFO ]: Without dead ends: 18 [2018-06-22 11:25:36,507 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 11:25:36,526 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-22 11:25:36,541 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-06-22 11:25:36,542 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-22 11:25:36,543 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-06-22 11:25:36,544 INFO ]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2018-06-22 11:25:36,544 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:25:36,544 INFO ]: Abstraction has 18 states and 18 transitions. [2018-06-22 11:25:36,544 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:25:36,544 INFO ]: Start isEmpty. Operand 18 states and 18 transitions. [2018-06-22 11:25:36,544 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:25:36,544 INFO ]: Found error trace [2018-06-22 11:25:36,544 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:25:36,545 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:25:36,545 INFO ]: Analyzing trace with hash -811377415, now seen corresponding path program 1 times [2018-06-22 11:25:36,545 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:25:36,545 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:25:36,545 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:36,545 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:25:36,545 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:36,562 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:25:36,606 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:25:36,606 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:25:36,606 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:25:36,608 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:25:36,608 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:25:36,608 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:25:36,608 INFO ]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2018-06-22 11:25:36,643 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:25:36,643 INFO ]: Finished difference Result 20 states and 19 transitions. [2018-06-22 11:25:36,643 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:25:36,643 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:25:36,644 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:25:36,644 INFO ]: With dead ends: 20 [2018-06-22 11:25:36,644 INFO ]: Without dead ends: 18 [2018-06-22 11:25:36,645 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:25:36,645 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-22 11:25:36,650 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-06-22 11:25:36,650 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-22 11:25:36,651 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-06-22 11:25:36,651 INFO ]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 9 [2018-06-22 11:25:36,651 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:25:36,651 INFO ]: Abstraction has 18 states and 17 transitions. [2018-06-22 11:25:36,651 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:25:36,651 INFO ]: Start isEmpty. Operand 18 states and 17 transitions. [2018-06-22 11:25:36,652 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:25:36,652 INFO ]: Found error trace [2018-06-22 11:25:36,652 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:25:36,652 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:25:36,652 INFO ]: Analyzing trace with hash 1111233176, now seen corresponding path program 1 times [2018-06-22 11:25:36,652 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:25:36,652 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:25:36,653 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:36,653 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:25:36,653 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:36,663 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:25:36,795 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:25:36,795 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:25:36,795 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:25:36,795 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:25:36,795 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:25:36,795 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:25:36,795 INFO ]: Start difference. First operand 18 states and 17 transitions. Second operand 7 states. [2018-06-22 11:25:36,870 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:25:36,870 INFO ]: Finished difference Result 14 states and 13 transitions. [2018-06-22 11:25:36,870 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:25:36,870 INFO ]: Start accepts. Automaton has 7 states. Word has length 17 [2018-06-22 11:25:36,870 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:25:36,870 INFO ]: With dead ends: 14 [2018-06-22 11:25:36,870 INFO ]: Without dead ends: 0 [2018-06-22 11:25:36,870 INFO ]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:25:36,871 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:25:36,871 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:25:36,871 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:25:36,871 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:25:36,871 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 11:25:36,871 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:25:36,871 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:25:36,871 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:25:36,871 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:25:36,871 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:25:36,876 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:25:36 BoogieIcfgContainer [2018-06-22 11:25:36,876 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:25:36,879 INFO ]: Toolchain (without parser) took 952.89 ms. Allocated memory is still 309.9 MB. Free memory was 267.4 MB in the beginning and 231.0 MB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:36,881 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:25:36,881 INFO ]: ChcToBoogie took 49.52 ms. Allocated memory is still 309.9 MB. Free memory was 266.4 MB in the beginning and 264.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:36,882 INFO ]: Boogie Preprocessor took 32.51 ms. Allocated memory is still 309.9 MB. Free memory was 264.4 MB in the beginning and 263.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:25:36,882 INFO ]: RCFGBuilder took 218.43 ms. Allocated memory is still 309.9 MB. Free memory was 263.4 MB in the beginning and 256.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:36,884 INFO ]: TraceAbstraction took 634.02 ms. Allocated memory is still 309.9 MB. Free memory was 256.2 MB in the beginning and 231.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:36,890 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 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 49.52 ms. Allocated memory is still 309.9 MB. Free memory was 266.4 MB in the beginning and 264.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 32.51 ms. Allocated memory is still 309.9 MB. Free memory was 264.4 MB in the beginning and 263.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 218.43 ms. Allocated memory is still 309.9 MB. Free memory was 263.4 MB in the beginning and 256.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 634.02 ms. Allocated memory is still 309.9 MB. Free memory was 256.2 MB in the beginning and 231.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 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 5 procedures, 20 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 2 SDslu, 73 SDs, 0 SdLazy, 16 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 864 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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/inductive6.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-25-36-911.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/inductive6.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-25-36-911.csv Received shutdown request...