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/inductive6-3.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:25:31,494 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:25:31,496 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:25:31,508 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:25:31,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:25:31,510 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:25:31,511 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:25:31,515 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:25:31,517 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:25:31,519 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:25:31,520 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:25:31,520 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:25:31,521 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:25:31,522 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:25:31,526 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:25:31,527 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:25:31,529 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:25:31,541 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:25:31,543 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:25:31,543 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:25:31,544 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:25:31,547 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:25:31,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:25:31,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:25:31,552 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:25:31,553 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:25:31,554 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:25:31,554 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:25:31,555 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:25:31,555 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:25:31,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:25:31,559 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:25:31,559 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:25:31,560 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:25:31,561 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:25:31,561 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 11:25:31,580 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:25:31,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:25:31,581 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:25:31,581 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:25:31,582 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:25:31,582 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:25:31,582 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:25:31,583 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:25:31,583 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:25:31,583 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:25:31,583 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:25:31,583 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:25:31,583 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:25:31,584 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:25:31,584 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:25:31,584 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:25:31,584 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:25:31,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:25:31,585 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:25:31,586 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:25:31,586 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:25:31,626 INFO ]: Repository-Root is: /tmp [2018-06-22 11:25:31,645 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:25:31,649 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:25:31,650 INFO ]: Initializing SmtParser... [2018-06-22 11:25:31,651 INFO ]: SmtParser initialized [2018-06-22 11:25:31,651 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/fpice/inductive6-3.smt2 [2018-06-22 11:25:31,653 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 11:25:31,748 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/fpice/inductive6-3.smt2 unknown [2018-06-22 11:25:31,909 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/fpice/inductive6-3.smt2 [2018-06-22 11:25:31,917 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:25:31,923 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:25:31,923 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:25:31,923 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:25:31,924 INFO ]: ChcToBoogie initialized [2018-06-22 11:25:31,927 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:25:31" (1/1) ... [2018-06-22 11:25:31,971 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31 Unit [2018-06-22 11:25:31,971 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:25:31,972 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:25:31,972 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:25:31,972 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:25:31,996 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31" (1/1) ... [2018-06-22 11:25:31,996 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31" (1/1) ... [2018-06-22 11:25:32,003 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31" (1/1) ... [2018-06-22 11:25:32,003 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31" (1/1) ... [2018-06-22 11:25:32,007 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31" (1/1) ... [2018-06-22 11:25:32,009 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31" (1/1) ... [2018-06-22 11:25:32,009 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31" (1/1) ... [2018-06-22 11:25:32,011 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:25:32,012 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:25:32,012 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:25:32,012 INFO ]: RCFGBuilder initialized [2018-06-22 11:25:32,013 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31" (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 11:25:32,033 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:25:32,033 INFO ]: Found specification of procedure False [2018-06-22 11:25:32,033 INFO ]: Found implementation of procedure False [2018-06-22 11:25:32,033 INFO ]: Specification and implementation of procedure fDLRunknownCLN6 given in one single declaration [2018-06-22 11:25:32,033 INFO ]: Found specification of procedure fDLRunknownCLN6 [2018-06-22 11:25:32,033 INFO ]: Found implementation of procedure fDLRunknownCLN6 [2018-06-22 11:25:32,033 INFO ]: Specification and implementation of procedure fDLRunknownCLN4 given in one single declaration [2018-06-22 11:25:32,033 INFO ]: Found specification of procedure fDLRunknownCLN4 [2018-06-22 11:25:32,033 INFO ]: Found implementation of procedure fDLRunknownCLN4 [2018-06-22 11:25:32,033 INFO ]: Specification and implementation of procedure decrDLRunknownCLN2 given in one single declaration [2018-06-22 11:25:32,033 INFO ]: Found specification of procedure decrDLRunknownCLN2 [2018-06-22 11:25:32,033 INFO ]: Found implementation of procedure decrDLRunknownCLN2 [2018-06-22 11:25:32,033 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:25:32,033 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:25:32,033 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 11:25:32,326 INFO ]: Using library mode [2018-06-22 11:25:32,326 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:25:32 BoogieIcfgContainer [2018-06-22 11:25:32,326 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:25:32,327 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:25:32,327 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:25:32,330 INFO ]: TraceAbstraction initialized [2018-06-22 11:25:32,331 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:25:31" (1/3) ... [2018-06-22 11:25:32,331 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325ede22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:25:32, skipping insertion in model container [2018-06-22 11:25:32,331 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:31" (2/3) ... [2018-06-22 11:25:32,332 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325ede22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:25:32, skipping insertion in model container [2018-06-22 11:25:32,332 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:25:32" (3/3) ... [2018-06-22 11:25:32,334 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:25:32,343 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:25:32,349 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:25:32,396 INFO ]: Using default assertion order modulation [2018-06-22 11:25:32,397 INFO ]: Interprodecural is true [2018-06-22 11:25:32,397 INFO ]: Hoare is false [2018-06-22 11:25:32,397 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:25:32,397 INFO ]: Backedges is TWOTRACK [2018-06-22 11:25:32,397 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:25:32,397 INFO ]: Difference is false [2018-06-22 11:25:32,397 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:25:32,397 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:25:32,410 INFO ]: Start isEmpty. Operand 20 states. [2018-06-22 11:25:32,422 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:25:32,423 INFO ]: Found error trace [2018-06-22 11:25:32,423 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:25:32,424 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:25:32,429 INFO ]: Analyzing trace with hash 63397401, now seen corresponding path program 1 times [2018-06-22 11:25:32,431 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:25:32,432 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:25:32,466 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:32,466 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:25:32,466 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:32,480 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:25:32,502 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:25:32,505 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:25:32,505 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:25:32,507 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:25:32,522 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:25:32,522 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:25:32,524 INFO ]: Start difference. First operand 20 states. Second operand 2 states. [2018-06-22 11:25:32,543 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:25:32,543 INFO ]: Finished difference Result 18 states and 18 transitions. [2018-06-22 11:25:32,543 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:25:32,544 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:25:32,545 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:25:32,553 INFO ]: With dead ends: 18 [2018-06-22 11:25:32,554 INFO ]: Without dead ends: 18 [2018-06-22 11:25:32,557 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 11:25:32,573 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-22 11:25:32,588 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-06-22 11:25:32,589 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-22 11:25:32,590 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-06-22 11:25:32,591 INFO ]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2018-06-22 11:25:32,591 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:25:32,591 INFO ]: Abstraction has 18 states and 18 transitions. [2018-06-22 11:25:32,591 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:25:32,591 INFO ]: Start isEmpty. Operand 18 states and 18 transitions. [2018-06-22 11:25:32,591 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:25:32,592 INFO ]: Found error trace [2018-06-22 11:25:32,592 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:25:32,592 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:25:32,592 INFO ]: Analyzing trace with hash 1950784082, now seen corresponding path program 1 times [2018-06-22 11:25:32,592 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:25:32,592 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:25:32,593 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:32,593 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:25:32,593 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:32,616 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:25:32,699 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:25:32,699 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:25:32,699 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:25:32,701 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:25:32,701 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:25:32,701 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:25:32,701 INFO ]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2018-06-22 11:25:32,716 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:25:32,716 INFO ]: Finished difference Result 20 states and 19 transitions. [2018-06-22 11:25:32,717 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:25:32,717 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:25:32,717 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:25:32,717 INFO ]: With dead ends: 20 [2018-06-22 11:25:32,717 INFO ]: Without dead ends: 18 [2018-06-22 11:25:32,718 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 11:25:32,718 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-22 11:25:32,720 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-06-22 11:25:32,720 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-22 11:25:32,721 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-06-22 11:25:32,721 INFO ]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 9 [2018-06-22 11:25:32,721 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:25:32,721 INFO ]: Abstraction has 18 states and 17 transitions. [2018-06-22 11:25:32,721 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:25:32,721 INFO ]: Start isEmpty. Operand 18 states and 17 transitions. [2018-06-22 11:25:32,722 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:25:32,722 INFO ]: Found error trace [2018-06-22 11:25:32,722 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:25:32,722 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:25:32,722 INFO ]: Analyzing trace with hash 80213718, now seen corresponding path program 1 times [2018-06-22 11:25:32,722 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:25:32,722 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:25:32,723 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:32,723 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:25:32,723 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:32,745 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:25:32,942 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:25:32,942 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:25:32,942 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:25:32,942 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:25:32,942 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:25:32,942 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:25:32,943 INFO ]: Start difference. First operand 18 states and 17 transitions. Second operand 7 states. [2018-06-22 11:25:33,023 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:25:33,023 INFO ]: Finished difference Result 14 states and 13 transitions. [2018-06-22 11:25:33,023 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:25:33,023 INFO ]: Start accepts. Automaton has 7 states. Word has length 17 [2018-06-22 11:25:33,023 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:25:33,023 INFO ]: With dead ends: 14 [2018-06-22 11:25:33,023 INFO ]: Without dead ends: 0 [2018-06-22 11:25:33,024 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 11:25:33,024 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:25:33,024 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:25:33,024 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:25:33,024 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:25:33,024 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 11:25:33,024 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:25:33,024 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:25:33,024 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:25:33,024 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:25:33,024 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:25:33,030 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:25:33 BoogieIcfgContainer [2018-06-22 11:25:33,030 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:25:33,033 INFO ]: Toolchain (without parser) took 1115.55 ms. Allocated memory is still 306.7 MB. Free memory was 263.1 MB in the beginning and 223.1 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:33,035 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:25:33,035 INFO ]: ChcToBoogie took 48.19 ms. Allocated memory is still 306.7 MB. Free memory was 263.1 MB in the beginning and 261.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:33,037 INFO ]: Boogie Preprocessor took 39.34 ms. Allocated memory is still 306.7 MB. Free memory was 261.1 MB in the beginning and 259.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:33,037 INFO ]: RCFGBuilder took 314.31 ms. Allocated memory is still 306.7 MB. Free memory was 259.1 MB in the beginning and 252.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:33,038 INFO ]: TraceAbstraction took 703.12 ms. Allocated memory is still 306.7 MB. Free memory was 251.1 MB in the beginning and 223.1 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:33,041 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 48.19 ms. Allocated memory is still 306.7 MB. Free memory was 263.1 MB in the beginning and 261.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 39.34 ms. Allocated memory is still 306.7 MB. Free memory was 261.1 MB in the beginning and 259.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 314.31 ms. Allocated memory is still 306.7 MB. Free memory was 259.1 MB in the beginning and 252.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 703.12 ms. Allocated memory is still 306.7 MB. Free memory was 251.1 MB in the beginning and 223.1 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 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, 0.6s 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, 0.2s 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, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 1120 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/inductive6-3.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-25-33-057.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/inductive6-3.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-25-33-057.csv Received shutdown request...