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/up_down00.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:41:25,060 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:41:25,062 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:41:25,083 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:41:25,084 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:41:25,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:41:25,085 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:41:25,089 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:41:25,091 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:41:25,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:41:25,092 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:41:25,095 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:41:25,096 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:41:25,097 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:41:25,097 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:41:25,098 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:41:25,102 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:41:25,104 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:41:25,115 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:41:25,116 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:41:25,116 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:41:25,118 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:41:25,119 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:41:25,119 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:41:25,119 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:41:25,123 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:41:25,123 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:41:25,124 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:41:25,125 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:41:25,125 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:41:25,125 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:41:25,129 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:41:25,129 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:41:25,130 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:41:25,131 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:41:25,131 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 11:41:25,154 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:41:25,154 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:41:25,154 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:41:25,155 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:41:25,156 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:41:25,156 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:41:25,157 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:41:25,157 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:41:25,157 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:41:25,157 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:41:25,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:41:25,157 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:41:25,158 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:41:25,158 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:41:25,158 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:41:25,158 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:41:25,158 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:41:25,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:41:25,159 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:41:25,161 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:41:25,161 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:41:25,201 INFO ]: Repository-Root is: /tmp [2018-06-22 11:41:25,215 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:41:25,218 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:41:25,220 INFO ]: Initializing SmtParser... [2018-06-22 11:41:25,220 INFO ]: SmtParser initialized [2018-06-22 11:41:25,221 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/up_down00.smt2 [2018-06-22 11:41:25,222 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 11:41:25,314 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/up_down00.smt2 unknown [2018-06-22 11:41:25,724 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/up_down00.smt2 [2018-06-22 11:41:25,729 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:41:25,747 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:41:25,748 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:41:25,748 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:41:25,748 INFO ]: ChcToBoogie initialized [2018-06-22 11:41:25,751 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:41:25" (1/1) ... [2018-06-22 11:41:25,826 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25 Unit [2018-06-22 11:41:25,826 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:41:25,827 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:41:25,827 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:41:25,827 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:41:25,850 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25" (1/1) ... [2018-06-22 11:41:25,877 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25" (1/1) ... [2018-06-22 11:41:25,886 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25" (1/1) ... [2018-06-22 11:41:25,886 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25" (1/1) ... [2018-06-22 11:41:25,891 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25" (1/1) ... [2018-06-22 11:41:25,896 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25" (1/1) ... [2018-06-22 11:41:25,901 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25" (1/1) ... [2018-06-22 11:41:25,903 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:41:25,904 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:41:25,909 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:41:25,909 INFO ]: RCFGBuilder initialized [2018-06-22 11:41:25,910 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25" (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 11:41:25,920 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:41:25,920 INFO ]: Found specification of procedure False [2018-06-22 11:41:25,920 INFO ]: Found implementation of procedure False [2018-06-22 11:41:25,920 INFO ]: Specification and implementation of procedure failDLRunknownCLN20 given in one single declaration [2018-06-22 11:41:25,920 INFO ]: Found specification of procedure failDLRunknownCLN20 [2018-06-22 11:41:25,920 INFO ]: Found implementation of procedure failDLRunknownCLN20 [2018-06-22 11:41:25,920 INFO ]: Specification and implementation of procedure up_1032DLRunknownCLN24 given in one single declaration [2018-06-22 11:41:25,920 INFO ]: Found specification of procedure up_1032DLRunknownCLN24 [2018-06-22 11:41:25,920 INFO ]: Found implementation of procedure up_1032DLRunknownCLN24 [2018-06-22 11:41:25,920 INFO ]: Specification and implementation of procedure app_1030DLRunknownCLN8 given in one single declaration [2018-06-22 11:41:25,920 INFO ]: Found specification of procedure app_1030DLRunknownCLN8 [2018-06-22 11:41:25,920 INFO ]: Found implementation of procedure app_1030DLRunknownCLN8 [2018-06-22 11:41:25,920 INFO ]: Specification and implementation of procedure app_1030DLRunknownCLN12 given in one single declaration [2018-06-22 11:41:25,920 INFO ]: Found specification of procedure app_1030DLRunknownCLN12 [2018-06-22 11:41:25,920 INFO ]: Found implementation of procedure app_1030DLRunknownCLN12 [2018-06-22 11:41:25,921 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:41:25,921 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:41:25,921 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 11:41:26,326 INFO ]: Using library mode [2018-06-22 11:41:26,332 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:41:26 BoogieIcfgContainer [2018-06-22 11:41:26,332 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:41:26,333 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:41:26,333 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:41:26,339 INFO ]: TraceAbstraction initialized [2018-06-22 11:41:26,339 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:41:25" (1/3) ... [2018-06-22 11:41:26,340 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52959bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:41:26, skipping insertion in model container [2018-06-22 11:41:26,341 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:25" (2/3) ... [2018-06-22 11:41:26,341 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52959bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:41:26, skipping insertion in model container [2018-06-22 11:41:26,341 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:41:26" (3/3) ... [2018-06-22 11:41:26,342 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:41:26,349 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:41:26,355 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:41:26,398 INFO ]: Using default assertion order modulation [2018-06-22 11:41:26,398 INFO ]: Interprodecural is true [2018-06-22 11:41:26,398 INFO ]: Hoare is false [2018-06-22 11:41:26,398 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:41:26,398 INFO ]: Backedges is TWOTRACK [2018-06-22 11:41:26,398 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:41:26,398 INFO ]: Difference is false [2018-06-22 11:41:26,398 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:41:26,398 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:41:26,413 INFO ]: Start isEmpty. Operand 24 states. [2018-06-22 11:41:26,424 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:41:26,424 INFO ]: Found error trace [2018-06-22 11:41:26,425 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:41:26,425 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:26,429 INFO ]: Analyzing trace with hash 185839582, now seen corresponding path program 1 times [2018-06-22 11:41:26,430 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:26,430 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:26,469 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:26,496 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:26,496 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:26,512 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:26,537 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:41:26,540 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:41:26,540 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:41:26,541 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:41:26,554 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:41:26,554 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:41:26,557 INFO ]: Start difference. First operand 24 states. Second operand 2 states. [2018-06-22 11:41:26,585 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:26,585 INFO ]: Finished difference Result 22 states and 22 transitions. [2018-06-22 11:41:26,585 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:41:26,586 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:41:26,586 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:26,594 INFO ]: With dead ends: 22 [2018-06-22 11:41:26,594 INFO ]: Without dead ends: 22 [2018-06-22 11:41:26,596 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 11:41:26,614 INFO ]: Start minimizeSevpa. Operand 22 states. [2018-06-22 11:41:26,632 INFO ]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-06-22 11:41:26,634 INFO ]: Start removeUnreachable. Operand 22 states. [2018-06-22 11:41:26,635 INFO ]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-06-22 11:41:26,637 INFO ]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 5 [2018-06-22 11:41:26,638 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:26,638 INFO ]: Abstraction has 22 states and 22 transitions. [2018-06-22 11:41:26,638 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:41:26,638 INFO ]: Start isEmpty. Operand 22 states and 22 transitions. [2018-06-22 11:41:26,638 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:41:26,638 INFO ]: Found error trace [2018-06-22 11:41:26,639 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:26,639 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:26,639 INFO ]: Analyzing trace with hash 46415308, now seen corresponding path program 1 times [2018-06-22 11:41:26,639 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:26,639 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:26,640 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:26,640 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:26,640 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:26,668 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:41:26,668 INFO ]: Advancing trace checker [2018-06-22 11:41:26,668 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) [2018-06-22 11:41:26,679 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:41:26,744 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:26,759 INFO ]: Computing forward predicates... [2018-06-22 11:41:26,938 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:41:26,959 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:41:26,959 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:41:26,961 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:41:26,961 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:41:26,961 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:41:26,961 INFO ]: Start difference. First operand 22 states and 22 transitions. Second operand 6 states. [2018-06-22 11:41:27,098 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:27,098 INFO ]: Finished difference Result 16 states and 16 transitions. [2018-06-22 11:41:27,099 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:41:27,099 INFO ]: Start accepts. Automaton has 6 states. Word has length 21 [2018-06-22 11:41:27,099 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:27,099 INFO ]: With dead ends: 16 [2018-06-22 11:41:27,099 INFO ]: Without dead ends: 0 [2018-06-22 11:41:27,100 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:41:27,100 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:41:27,100 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:41:27,100 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:41:27,100 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:41:27,101 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-06-22 11:41:27,101 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:27,101 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:41:27,101 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:41:27,101 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:41:27,101 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:41:27,106 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:41:27 BoogieIcfgContainer [2018-06-22 11:41:27,106 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:41:27,107 INFO ]: Toolchain (without parser) took 1377.07 ms. Allocated memory is still 307.2 MB. Free memory was 253.7 MB in the beginning and 209.3 MB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:27,108 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 307.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:41:27,109 INFO ]: ChcToBoogie took 78.85 ms. Allocated memory is still 307.2 MB. Free memory was 253.7 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:27,109 INFO ]: Boogie Preprocessor took 76.03 ms. Allocated memory is still 307.2 MB. Free memory was 251.7 MB in the beginning and 249.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:27,121 INFO ]: RCFGBuilder took 428.48 ms. Allocated memory is still 307.2 MB. Free memory was 249.7 MB in the beginning and 237.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:27,121 INFO ]: TraceAbstraction took 772.64 ms. Allocated memory is still 307.2 MB. Free memory was 237.7 MB in the beginning and 209.3 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:27,127 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 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 78.85 ms. Allocated memory is still 307.2 MB. Free memory was 253.7 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 76.03 ms. Allocated memory is still 307.2 MB. Free memory was 251.7 MB in the beginning and 249.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 428.48 ms. Allocated memory is still 307.2 MB. Free memory was 249.7 MB in the beginning and 237.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 772.64 ms. Allocated memory is still 307.2 MB. Free memory was 237.7 MB in the beginning and 209.3 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 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 6 procedures, 24 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 0 SDslu, 47 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 9 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 correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/up_down00.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-41-27-148.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/up_down00.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-41-27-148.csv Received shutdown request...