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/termination/indirectHO03.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:40:40,692 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:40:40,694 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:40:40,706 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:40:40,706 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:40:40,707 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:40:40,708 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:40:40,710 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:40:40,711 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:40:40,712 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:40:40,713 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:40:40,714 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:40:40,714 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:40:40,718 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:40:40,718 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:40:40,719 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:40:40,721 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:40:40,732 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:40:40,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:40:40,734 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:40:40,735 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:40:40,737 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:40:40,737 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:40:40,737 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:40:40,738 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:40:40,742 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:40:40,743 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:40:40,744 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:40:40,747 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:40:40,747 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:40:40,748 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:40:40,749 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:40:40,749 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:40:40,749 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:40:40,750 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:40:40,750 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 11:40:40,763 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:40:40,764 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:40:40,764 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:40:40,764 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:40:40,767 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:40:40,767 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:40:40,768 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:40:40,768 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:40:40,768 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:40:40,768 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:40:40,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:40:40,769 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:40:40,769 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:40:40,769 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:40:40,769 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:40:40,770 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:40:40,770 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:40:40,770 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:40:40,770 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:40:40,773 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:40:40,773 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:40:40,828 INFO ]: Repository-Root is: /tmp [2018-06-22 11:40:40,843 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:40:40,849 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:40:40,850 INFO ]: Initializing SmtParser... [2018-06-22 11:40:40,851 INFO ]: SmtParser initialized [2018-06-22 11:40:40,851 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/indirectHO03.smt2 [2018-06-22 11:40:40,852 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 11:40:40,943 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/indirectHO03.smt2 unknown [2018-06-22 11:40:41,376 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/indirectHO03.smt2 [2018-06-22 11:40:41,381 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:40:41,395 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:40:41,396 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:40:41,396 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:40:41,396 INFO ]: ChcToBoogie initialized [2018-06-22 11:40:41,399 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:40:41" (1/1) ... [2018-06-22 11:40:41,485 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41 Unit [2018-06-22 11:40:41,485 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:40:41,485 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:40:41,485 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:40:41,486 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:40:41,531 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41" (1/1) ... [2018-06-22 11:40:41,531 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41" (1/1) ... [2018-06-22 11:40:41,545 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41" (1/1) ... [2018-06-22 11:40:41,545 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41" (1/1) ... [2018-06-22 11:40:41,556 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41" (1/1) ... [2018-06-22 11:40:41,562 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41" (1/1) ... [2018-06-22 11:40:41,564 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41" (1/1) ... [2018-06-22 11:40:41,568 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:40:41,569 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:40:41,569 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:40:41,569 INFO ]: RCFGBuilder initialized [2018-06-22 11:40:41,569 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41" (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 11:40:41,587 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:40:41,587 INFO ]: Found specification of procedure False [2018-06-22 11:40:41,587 INFO ]: Found implementation of procedure False [2018-06-22 11:40:41,587 INFO ]: Specification and implementation of procedure failDLRunknownCLN49 given in one single declaration [2018-06-22 11:40:41,587 INFO ]: Found specification of procedure failDLRunknownCLN49 [2018-06-22 11:40:41,587 INFO ]: Found implementation of procedure failDLRunknownCLN49 [2018-06-22 11:40:41,587 INFO ]: Specification and implementation of procedure f_1035DLRunknownCLN34 given in one single declaration [2018-06-22 11:40:41,587 INFO ]: Found specification of procedure f_1035DLRunknownCLN34 [2018-06-22 11:40:41,587 INFO ]: Found implementation of procedure f_1035DLRunknownCLN34 [2018-06-22 11:40:41,587 INFO ]: Specification and implementation of procedure app_1032DLRunknownCLN8 given in one single declaration [2018-06-22 11:40:41,587 INFO ]: Found specification of procedure app_1032DLRunknownCLN8 [2018-06-22 11:40:41,587 INFO ]: Found implementation of procedure app_1032DLRunknownCLN8 [2018-06-22 11:40:41,587 INFO ]: Specification and implementation of procedure app_1032DLRunknownCLN15 given in one single declaration [2018-06-22 11:40:41,587 INFO ]: Found specification of procedure app_1032DLRunknownCLN15 [2018-06-22 11:40:41,587 INFO ]: Found implementation of procedure app_1032DLRunknownCLN15 [2018-06-22 11:40:41,587 INFO ]: Specification and implementation of procedure f_without_checking_1197DLRunknownCLN47 given in one single declaration [2018-06-22 11:40:41,587 INFO ]: Found specification of procedure f_without_checking_1197DLRunknownCLN47 [2018-06-22 11:40:41,587 INFO ]: Found implementation of procedure f_without_checking_1197DLRunknownCLN47 [2018-06-22 11:40:41,587 INFO ]: Specification and implementation of procedure f_1035DLRunknownCLN27 given in one single declaration [2018-06-22 11:40:41,587 INFO ]: Found specification of procedure f_1035DLRunknownCLN27 [2018-06-22 11:40:41,587 INFO ]: Found implementation of procedure f_1035DLRunknownCLN27 [2018-06-22 11:40:41,587 INFO ]: Specification and implementation of procedure botDLRunknownCLN18 given in one single declaration [2018-06-22 11:40:41,587 INFO ]: Found specification of procedure botDLRunknownCLN18 [2018-06-22 11:40:41,588 INFO ]: Found implementation of procedure botDLRunknownCLN18 [2018-06-22 11:40:41,588 INFO ]: Specification and implementation of procedure f_1035DLRunknownCLN37 given in one single declaration [2018-06-22 11:40:41,588 INFO ]: Found specification of procedure f_1035DLRunknownCLN37 [2018-06-22 11:40:41,588 INFO ]: Found implementation of procedure f_1035DLRunknownCLN37 [2018-06-22 11:40:41,588 INFO ]: Specification and implementation of procedure app_1032DLRunknownCLN11 given in one single declaration [2018-06-22 11:40:41,588 INFO ]: Found specification of procedure app_1032DLRunknownCLN11 [2018-06-22 11:40:41,588 INFO ]: Found implementation of procedure app_1032DLRunknownCLN11 [2018-06-22 11:40:41,588 INFO ]: Specification and implementation of procedure failDLRunknownCLN50 given in one single declaration [2018-06-22 11:40:41,588 INFO ]: Found specification of procedure failDLRunknownCLN50 [2018-06-22 11:40:41,588 INFO ]: Found implementation of procedure failDLRunknownCLN50 [2018-06-22 11:40:41,588 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:40:41,588 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:40:41,588 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:40:42,234 INFO ]: Using library mode [2018-06-22 11:40:42,234 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:40:42 BoogieIcfgContainer [2018-06-22 11:40:42,235 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:40:42,239 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:40:42,239 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:40:42,246 INFO ]: TraceAbstraction initialized [2018-06-22 11:40:42,246 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:40:41" (1/3) ... [2018-06-22 11:40:42,247 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae2a371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:40:42, skipping insertion in model container [2018-06-22 11:40:42,247 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:41" (2/3) ... [2018-06-22 11:40:42,247 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae2a371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:40:42, skipping insertion in model container [2018-06-22 11:40:42,247 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:40:42" (3/3) ... [2018-06-22 11:40:42,256 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:40:42,265 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:40:42,274 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:40:42,314 INFO ]: Using default assertion order modulation [2018-06-22 11:40:42,315 INFO ]: Interprodecural is true [2018-06-22 11:40:42,315 INFO ]: Hoare is false [2018-06-22 11:40:42,315 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:40:42,315 INFO ]: Backedges is TWOTRACK [2018-06-22 11:40:42,315 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:40:42,315 INFO ]: Difference is false [2018-06-22 11:40:42,315 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:40:42,315 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:40:42,330 INFO ]: Start isEmpty. Operand 54 states. [2018-06-22 11:40:42,341 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:40:42,341 INFO ]: Found error trace [2018-06-22 11:40:42,342 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:40:42,342 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:42,346 INFO ]: Analyzing trace with hash 310690134, now seen corresponding path program 1 times [2018-06-22 11:40:42,347 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:42,347 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:42,387 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:42,388 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:42,388 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:42,402 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:42,425 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:40:42,428 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:40:42,428 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:40:42,430 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:40:42,445 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:40:42,446 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:40:42,448 INFO ]: Start difference. First operand 54 states. Second operand 2 states. [2018-06-22 11:40:42,469 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:42,469 INFO ]: Finished difference Result 45 states and 48 transitions. [2018-06-22 11:40:42,470 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:40:42,472 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:40:42,472 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:42,491 INFO ]: With dead ends: 45 [2018-06-22 11:40:42,491 INFO ]: Without dead ends: 41 [2018-06-22 11:40:42,493 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 11:40:42,510 INFO ]: Start minimizeSevpa. Operand 41 states. [2018-06-22 11:40:42,529 INFO ]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-06-22 11:40:42,530 INFO ]: Start removeUnreachable. Operand 41 states. [2018-06-22 11:40:42,532 INFO ]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-06-22 11:40:42,533 INFO ]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 5 [2018-06-22 11:40:42,533 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:42,533 INFO ]: Abstraction has 41 states and 44 transitions. [2018-06-22 11:40:42,533 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:40:42,533 INFO ]: Start isEmpty. Operand 41 states and 44 transitions. [2018-06-22 11:40:42,535 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 11:40:42,535 INFO ]: Found error trace [2018-06-22 11:40:42,535 INFO ]: trace histogram [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 11:40:42,535 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:42,536 INFO ]: Analyzing trace with hash -450811054, now seen corresponding path program 1 times [2018-06-22 11:40:42,536 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:42,536 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:42,536 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:42,536 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:42,536 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:42,560 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:40:42,560 INFO ]: Advancing trace checker [2018-06-22 11:40:42,560 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:40:42,567 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:42,619 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:42,630 INFO ]: Computing forward predicates... [2018-06-22 11:40:43,052 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:40:43,075 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:40:43,076 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:40:43,077 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:40:43,077 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:40:43,077 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:40:43,078 INFO ]: Start difference. First operand 41 states and 44 transitions. Second operand 7 states. [2018-06-22 11:40:43,206 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:43,206 INFO ]: Finished difference Result 49 states and 54 transitions. [2018-06-22 11:40:43,207 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:40:43,207 INFO ]: Start accepts. Automaton has 7 states. Word has length 25 [2018-06-22 11:40:43,207 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:43,209 INFO ]: With dead ends: 49 [2018-06-22 11:40:43,209 INFO ]: Without dead ends: 49 [2018-06-22 11:40:43,210 INFO ]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:40:43,210 INFO ]: Start minimizeSevpa. Operand 49 states. [2018-06-22 11:40:43,219 INFO ]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-06-22 11:40:43,219 INFO ]: Start removeUnreachable. Operand 49 states. [2018-06-22 11:40:43,221 INFO ]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-06-22 11:40:43,221 INFO ]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 25 [2018-06-22 11:40:43,221 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:43,221 INFO ]: Abstraction has 49 states and 54 transitions. [2018-06-22 11:40:43,221 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:40:43,221 INFO ]: Start isEmpty. Operand 49 states and 54 transitions. [2018-06-22 11:40:43,224 INFO ]: Finished isEmpty. Found accepting run of length 74 [2018-06-22 11:40:43,224 INFO ]: Found error trace [2018-06-22 11:40:43,224 INFO ]: trace histogram [4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:43,224 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:43,224 INFO ]: Analyzing trace with hash 505168334, now seen corresponding path program 1 times [2018-06-22 11:40:43,224 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:43,224 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:43,225 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:43,225 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:43,225 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:43,236 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:40:43,236 INFO ]: Advancing trace checker [2018-06-22 11:40:43,236 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 (exit command is (exit), workingDir is null) [2018-06-22 11:40:43,274 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:40:43,393 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:43,400 INFO ]: Computing forward predicates... [2018-06-22 11:40:43,853 INFO ]: Checked inductivity of 58 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-06-22 11:40:43,878 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:40:43,878 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-22 11:40:43,879 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:40:43,879 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:40:43,879 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:40:43,879 INFO ]: Start difference. First operand 49 states and 54 transitions. Second operand 11 states. [2018-06-22 11:40:44,162 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:44,162 INFO ]: Finished difference Result 57 states and 74 transitions. [2018-06-22 11:40:44,163 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 11:40:44,163 INFO ]: Start accepts. Automaton has 11 states. Word has length 73 [2018-06-22 11:40:44,164 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:44,164 INFO ]: With dead ends: 57 [2018-06-22 11:40:44,164 INFO ]: Without dead ends: 0 [2018-06-22 11:40:44,164 INFO ]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:40:44,164 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:40:44,164 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:40:44,164 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:40:44,164 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:40:44,164 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2018-06-22 11:40:44,164 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:44,164 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:40:44,164 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:40:44,165 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:40:44,165 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:40:44,169 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:40:44 BoogieIcfgContainer [2018-06-22 11:40:44,169 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:40:44,169 INFO ]: Toolchain (without parser) took 2787.93 ms. Allocated memory was 309.9 MB in the beginning and 329.3 MB in the end (delta: 19.4 MB). Free memory was 253.2 MB in the beginning and 231.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 41.5 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:44,171 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:40:44,171 INFO ]: ChcToBoogie took 89.41 ms. Allocated memory is still 309.9 MB. Free memory was 253.2 MB in the beginning and 251.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:44,171 INFO ]: Boogie Preprocessor took 82.64 ms. Allocated memory is still 309.9 MB. Free memory was 251.3 MB in the beginning and 249.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:44,172 INFO ]: RCFGBuilder took 666.00 ms. Allocated memory is still 309.9 MB. Free memory was 249.3 MB in the beginning and 230.2 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:44,172 INFO ]: TraceAbstraction took 1929.42 ms. Allocated memory was 309.9 MB in the beginning and 329.3 MB in the end (delta: 19.4 MB). Free memory was 229.2 MB in the beginning and 231.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 3.6 GB. [2018-06-22 11:40:44,175 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 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 89.41 ms. Allocated memory is still 309.9 MB. Free memory was 253.2 MB in the beginning and 251.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 82.64 ms. Allocated memory is still 309.9 MB. Free memory was 251.3 MB in the beginning and 249.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 666.00 ms. Allocated memory is still 309.9 MB. Free memory was 249.3 MB in the beginning and 230.2 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1929.42 ms. Allocated memory was 309.9 MB in the beginning and 329.3 MB in the end (delta: 19.4 MB). Free memory was 229.2 MB in the beginning and 231.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 17.4 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 12 procedures, 54 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 128 SDtfs, 8 SDslu, 522 SDs, 0 SdLazy, 212 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 8896 SizeOfPredicates, 1 NumberOfNonLiveVariables, 682 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 58/58 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/indirectHO03.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-40-44-184.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirectHO03.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-40-44-184.csv Received shutdown request...