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/eldarica-misc/LIA/reve/011c-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:13:34,987 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:13:34,989 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:13:35,000 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:13:35,000 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:13:35,001 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:13:35,002 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:13:35,004 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:13:35,006 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:13:35,007 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:13:35,008 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:13:35,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:13:35,009 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:13:35,010 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:13:35,013 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:13:35,014 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:13:35,016 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:13:35,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:13:35,027 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:13:35,028 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:13:35,029 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:13:35,031 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:13:35,031 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:13:35,032 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:13:35,032 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:13:35,033 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:13:35,034 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:13:35,043 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:13:35,045 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:13:35,045 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:13:35,045 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:13:35,046 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:13:35,046 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:13:35,047 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:13:35,048 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:13:35,048 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 11:13:35,070 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:13:35,071 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:13:35,071 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:13:35,071 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:13:35,072 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:13:35,072 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:13:35,072 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:13:35,073 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:13:35,073 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:13:35,073 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:13:35,073 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:13:35,073 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:13:35,074 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:13:35,074 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:13:35,074 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:13:35,074 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:13:35,074 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:13:35,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:13:35,075 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:13:35,077 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:13:35,077 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:13:35,123 INFO ]: Repository-Root is: /tmp [2018-06-22 11:13:35,136 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:13:35,139 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:13:35,141 INFO ]: Initializing SmtParser... [2018-06-22 11:13:35,141 INFO ]: SmtParser initialized [2018-06-22 11:13:35,141 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/011c-horn.smt2 [2018-06-22 11:13:35,143 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 11:13:35,231 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/011c-horn.smt2 unknown [2018-06-22 11:13:35,494 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/011c-horn.smt2 [2018-06-22 11:13:35,499 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:13:35,504 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:13:35,505 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:13:35,505 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:13:35,506 INFO ]: ChcToBoogie initialized [2018-06-22 11:13:35,512 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:13:35" (1/1) ... [2018-06-22 11:13:35,568 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35 Unit [2018-06-22 11:13:35,568 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:13:35,569 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:13:35,569 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:13:35,569 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:13:35,595 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35" (1/1) ... [2018-06-22 11:13:35,595 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35" (1/1) ... [2018-06-22 11:13:35,604 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35" (1/1) ... [2018-06-22 11:13:35,604 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35" (1/1) ... [2018-06-22 11:13:35,612 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35" (1/1) ... [2018-06-22 11:13:35,620 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35" (1/1) ... [2018-06-22 11:13:35,622 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35" (1/1) ... [2018-06-22 11:13:35,624 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:13:35,625 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:13:35,625 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:13:35,625 INFO ]: RCFGBuilder initialized [2018-06-22 11:13:35,625 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35" (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 11:13:35,640 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:13:35,640 INFO ]: Found specification of procedure False [2018-06-22 11:13:35,640 INFO ]: Found implementation of procedure False [2018-06-22 11:13:35,640 INFO ]: Specification and implementation of procedure REC_f_f given in one single declaration [2018-06-22 11:13:35,640 INFO ]: Found specification of procedure REC_f_f [2018-06-22 11:13:35,640 INFO ]: Found implementation of procedure REC_f_f [2018-06-22 11:13:35,640 INFO ]: Specification and implementation of procedure REC_f_ given in one single declaration [2018-06-22 11:13:35,640 INFO ]: Found specification of procedure REC_f_ [2018-06-22 11:13:35,640 INFO ]: Found implementation of procedure REC_f_ [2018-06-22 11:13:35,640 INFO ]: Specification and implementation of procedure REC__f given in one single declaration [2018-06-22 11:13:35,640 INFO ]: Found specification of procedure REC__f [2018-06-22 11:13:35,640 INFO ]: Found implementation of procedure REC__f [2018-06-22 11:13:35,640 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:13:35,640 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:13:35,640 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:13:36,214 INFO ]: Using library mode [2018-06-22 11:13:36,215 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:13:36 BoogieIcfgContainer [2018-06-22 11:13:36,215 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:13:36,218 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:13:36,218 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:13:36,221 INFO ]: TraceAbstraction initialized [2018-06-22 11:13:36,221 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:13:35" (1/3) ... [2018-06-22 11:13:36,224 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e95619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:13:36, skipping insertion in model container [2018-06-22 11:13:36,224 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:13:35" (2/3) ... [2018-06-22 11:13:36,225 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e95619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:13:36, skipping insertion in model container [2018-06-22 11:13:36,225 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:13:36" (3/3) ... [2018-06-22 11:13:36,227 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:13:36,238 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:13:36,248 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:13:36,298 INFO ]: Using default assertion order modulation [2018-06-22 11:13:36,299 INFO ]: Interprodecural is true [2018-06-22 11:13:36,299 INFO ]: Hoare is false [2018-06-22 11:13:36,299 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:13:36,299 INFO ]: Backedges is TWOTRACK [2018-06-22 11:13:36,299 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:13:36,299 INFO ]: Difference is false [2018-06-22 11:13:36,299 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:13:36,299 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:13:36,319 INFO ]: Start isEmpty. Operand 42 states. [2018-06-22 11:13:36,343 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:13:36,343 INFO ]: Found error trace [2018-06-22 11:13:36,343 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:13:36,344 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:13:36,347 INFO ]: Analyzing trace with hash 214527378, now seen corresponding path program 1 times [2018-06-22 11:13:36,348 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:13:36,348 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:13:36,382 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:13:36,382 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:13:36,382 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:13:36,397 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:13:36,423 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:13:36,426 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:13:36,426 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:13:36,428 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:13:36,443 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:13:36,444 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:13:36,446 INFO ]: Start difference. First operand 42 states. Second operand 2 states. [2018-06-22 11:13:36,474 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:13:36,474 INFO ]: Finished difference Result 33 states and 66 transitions. [2018-06-22 11:13:36,474 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:13:36,485 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:13:36,486 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:13:36,501 INFO ]: With dead ends: 33 [2018-06-22 11:13:36,501 INFO ]: Without dead ends: 33 [2018-06-22 11:13:36,505 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 11:13:36,520 INFO ]: Start minimizeSevpa. Operand 33 states. [2018-06-22 11:13:36,543 INFO ]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-06-22 11:13:36,544 INFO ]: Start removeUnreachable. Operand 33 states. [2018-06-22 11:13:36,547 INFO ]: Finished removeUnreachable. Reduced from 33 states to 33 states and 66 transitions. [2018-06-22 11:13:36,548 INFO ]: Start accepts. Automaton has 33 states and 66 transitions. Word has length 5 [2018-06-22 11:13:36,549 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:13:36,549 INFO ]: Abstraction has 33 states and 66 transitions. [2018-06-22 11:13:36,549 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:13:36,549 INFO ]: Start isEmpty. Operand 33 states and 66 transitions. [2018-06-22 11:13:36,553 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:13:36,553 INFO ]: Found error trace [2018-06-22 11:13:36,553 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:13:36,553 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:13:36,553 INFO ]: Analyzing trace with hash 1357411945, now seen corresponding path program 1 times [2018-06-22 11:13:36,553 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:13:36,553 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:13:36,555 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:13:36,555 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:13:36,555 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:13:36,572 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:13:36,612 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:13:36,612 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:13:36,612 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:13:36,614 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:13:36,614 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:13:36,614 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:13:36,614 INFO ]: Start difference. First operand 33 states and 66 transitions. Second operand 4 states. [2018-06-22 11:13:36,815 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:13:36,815 INFO ]: Finished difference Result 35 states and 71 transitions. [2018-06-22 11:13:36,816 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:13:36,816 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:13:36,816 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:13:36,818 INFO ]: With dead ends: 35 [2018-06-22 11:13:36,818 INFO ]: Without dead ends: 35 [2018-06-22 11:13:36,818 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 11:13:36,819 INFO ]: Start minimizeSevpa. Operand 35 states. [2018-06-22 11:13:36,833 INFO ]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-06-22 11:13:36,833 INFO ]: Start removeUnreachable. Operand 35 states. [2018-06-22 11:13:36,835 INFO ]: Finished removeUnreachable. Reduced from 35 states to 35 states and 71 transitions. [2018-06-22 11:13:36,835 INFO ]: Start accepts. Automaton has 35 states and 71 transitions. Word has length 9 [2018-06-22 11:13:36,835 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:13:36,835 INFO ]: Abstraction has 35 states and 71 transitions. [2018-06-22 11:13:36,835 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:13:36,835 INFO ]: Start isEmpty. Operand 35 states and 71 transitions. [2018-06-22 11:13:36,838 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:13:36,838 INFO ]: Found error trace [2018-06-22 11:13:36,839 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:13:36,839 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:13:36,839 INFO ]: Analyzing trace with hash 1557816002, now seen corresponding path program 1 times [2018-06-22 11:13:36,839 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:13:36,839 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:13:36,840 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:13:36,840 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:13:36,840 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:13:36,846 INFO ]: Conjunction of SSA is sat [2018-06-22 11:13:36,846 INFO ]: Counterexample might be feasible [2018-06-22 11:13:36,862 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:13:36 BoogieIcfgContainer [2018-06-22 11:13:36,862 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:13:36,863 INFO ]: Toolchain (without parser) took 1364.31 ms. Allocated memory is still 307.2 MB. Free memory was 258.6 MB in the beginning and 212.6 MB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:13:36,866 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:13:36,866 INFO ]: ChcToBoogie took 63.85 ms. Allocated memory is still 307.2 MB. Free memory was 257.6 MB in the beginning and 255.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:13:36,867 INFO ]: Boogie Preprocessor took 54.99 ms. Allocated memory is still 307.2 MB. Free memory was 255.6 MB in the beginning and 254.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:13:36,867 INFO ]: RCFGBuilder took 590.48 ms. Allocated memory is still 307.2 MB. Free memory was 254.6 MB in the beginning and 235.6 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:13:36,868 INFO ]: TraceAbstraction took 644.60 ms. Allocated memory is still 307.2 MB. Free memory was 235.6 MB in the beginning and 212.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:13:36,873 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 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 63.85 ms. Allocated memory is still 307.2 MB. Free memory was 257.6 MB in the beginning and 255.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 54.99 ms. Allocated memory is still 307.2 MB. Free memory was 255.6 MB in the beginning and 254.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 590.48 ms. Allocated memory is still 307.2 MB. Free memory was 254.6 MB in the beginning and 235.6 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 644.60 ms. Allocated memory is still 307.2 MB. Free memory was 235.6 MB in the beginning and 212.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call False(); [L0] assume (((((!(hbv_False_1_Int + 1 == 0) && 2 - hbv_False_4_Int + -1 >= 0) && hbv_False_2_Int + -1 >= 0) && hbv_False_2_Int == hbv_False_4_Int) && !(hbv_False_1_Int + 1 <= -1)) && hbv_False_2_Int + -1 == hbv_False_3_Int) && !(hbv_False_4_Int + -1 + -1 >= 0); [L0] CALL call REC_f_(hbv_False_3_Int, hbv_False_1_Int); [L0] assume (!(hhv_REC_f__0_Int <= -1) && hhv_REC_f__1_Int == hhv_REC_f__0_Int) && !(hhv_REC_f__0_Int + -1 >= 0); [L0] RET call REC_f_(hbv_False_3_Int, hbv_False_1_Int); [L0] RET call False(); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 128 SDtfs, 1 SDslu, 106 SDs, 0 SdLazy, 20 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011c-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-13-36-888.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011c-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-13-36-888.csv Received shutdown request...