java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/llreve-bench/smt2/loop__while-if.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:45:37,928 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:45:37,931 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:45:37,943 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:45:37,944 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:45:37,944 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:45:37,947 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:45:37,950 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:45:37,951 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:45:37,953 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:45:37,953 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:45:37,954 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:45:37,955 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:45:37,955 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:45:37,959 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:45:37,959 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:45:37,960 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:45:37,962 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:45:37,966 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:45:37,967 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:45:37,969 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:45:37,970 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:45:37,972 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:45:37,972 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:45:37,972 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:45:37,973 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:45:37,974 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:45:37,975 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:45:37,975 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:45:37,976 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:45:37,977 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:45:37,977 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-06-26 18:45:37,979 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:45:37,998 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:45:37,999 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:45:37,999 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:45:37,999 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:45:38,003 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:45:38,003 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:45:38,003 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:45:38,004 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:45:38,004 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:45:38,004 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:45:38,004 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:45:38,004 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:45:38,005 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:45:38,005 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:45:38,005 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:45:38,005 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:45:38,005 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:45:38,005 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:45:38,006 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:45:38,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:45:38,007 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:45:38,008 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:45:38,009 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:45:38,056 INFO ]: Repository-Root is: /tmp [2018-06-26 18:45:38,070 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:45:38,073 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:45:38,074 INFO ]: Initializing SmtParser... [2018-06-26 18:45:38,075 INFO ]: SmtParser initialized [2018-06-26 18:45:38,075 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/loop__while-if.smt2 [2018-06-26 18:45:38,076 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 [2018-06-26 18:45:38,165 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/loop__while-if.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@12acbccd [2018-06-26 18:45:38,313 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/loop__while-if.smt2 [2018-06-26 18:45:38,319 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:45:38,327 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:45:38,327 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:45:38,327 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:45:38,328 INFO ]: ChcToBoogie initialized [2018-06-26 18:45:38,332 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:45:38" (1/1) ... [2018-06-26 18:45:38,389 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38 Unit [2018-06-26 18:45:38,389 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:45:38,390 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:45:38,390 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:45:38,390 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:45:38,412 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38" (1/1) ... [2018-06-26 18:45:38,412 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38" (1/1) ... [2018-06-26 18:45:38,417 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38" (1/1) ... [2018-06-26 18:45:38,418 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38" (1/1) ... [2018-06-26 18:45:38,421 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38" (1/1) ... [2018-06-26 18:45:38,423 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38" (1/1) ... [2018-06-26 18:45:38,424 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38" (1/1) ... [2018-06-26 18:45:38,425 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:45:38,429 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:45:38,429 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:45:38,429 INFO ]: RCFGBuilder initialized [2018-06-26 18:45:38,430 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38" (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) [2018-06-26 18:45:38,443 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:45:38,444 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:45:38,444 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:45:38,444 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:45:38,444 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:45:38,444 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 [2018-06-26 18:45:38,734 INFO ]: Using library mode [2018-06-26 18:45:38,735 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:45:38 BoogieIcfgContainer [2018-06-26 18:45:38,735 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:45:38,736 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:45:38,736 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:45:38,739 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:45:38,743 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:45:38" (1/1) ... [2018-06-26 18:45:38,773 INFO ]: Initial Icfg 11 locations, 15 edges [2018-06-26 18:45:38,775 INFO ]: Using Remove infeasible edges [2018-06-26 18:45:38,775 INFO ]: Using Maximize final states [2018-06-26 18:45:38,776 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:45:38,776 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:45:38,777 INFO ]: Using Remove sink states [2018-06-26 18:45:38,778 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:45:38,778 INFO ]: Using Use SBE [2018-06-26 18:45:38,783 INFO ]: SBE split 0 edges [2018-06-26 18:45:38,790 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-26 18:45:38,792 INFO ]: 0 new accepting states [2018-06-26 18:45:38,830 INFO ]: Removed 6 edges and 2 locations by large block encoding [2018-06-26 18:45:38,832 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:45:38,833 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:45:38,833 INFO ]: 0 new accepting states [2018-06-26 18:45:38,834 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:45:38,834 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:45:38,834 INFO ]: Encoded RCFG 7 locations, 11 edges [2018-06-26 18:45:38,834 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:45:38 BasicIcfg [2018-06-26 18:45:38,834 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:45:38,835 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:45:38,835 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:45:38,839 INFO ]: TraceAbstraction initialized [2018-06-26 18:45:38,839 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:45:38" (1/4) ... [2018-06-26 18:45:38,840 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632f9301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:45:38, skipping insertion in model container [2018-06-26 18:45:38,840 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:45:38" (2/4) ... [2018-06-26 18:45:38,840 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632f9301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:45:38, skipping insertion in model container [2018-06-26 18:45:38,840 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:45:38" (3/4) ... [2018-06-26 18:45:38,840 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632f9301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:45:38, skipping insertion in model container [2018-06-26 18:45:38,840 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:45:38" (4/4) ... [2018-06-26 18:45:38,843 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:45:38,855 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:45:38,864 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:45:38,900 INFO ]: Using default assertion order modulation [2018-06-26 18:45:38,901 INFO ]: Interprodecural is true [2018-06-26 18:45:38,901 INFO ]: Hoare is false [2018-06-26 18:45:38,901 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:45:38,901 INFO ]: Backedges is TWOTRACK [2018-06-26 18:45:38,901 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:45:38,901 INFO ]: Difference is false [2018-06-26 18:45:38,901 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:45:38,901 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:45:38,915 INFO ]: Start isEmpty. Operand 7 states. [2018-06-26 18:45:38,926 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:45:38,926 INFO ]: Found error trace [2018-06-26 18:45:38,927 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:45:38,927 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:38,932 INFO ]: Analyzing trace with hash 39282278, now seen corresponding path program 1 times [2018-06-26 18:45:38,934 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:38,935 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:38,969 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:38,969 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:38,970 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:39,008 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:39,061 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:39,062 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:45:39,063 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:45:39,064 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:45:39,074 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:45:39,074 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:45:39,076 INFO ]: Start difference. First operand 7 states. Second operand 3 states. [2018-06-26 18:45:39,125 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:39,125 INFO ]: Finished difference Result 8 states and 12 transitions. [2018-06-26 18:45:39,125 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:45:39,126 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:45:39,126 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:39,134 INFO ]: With dead ends: 8 [2018-06-26 18:45:39,134 INFO ]: Without dead ends: 8 [2018-06-26 18:45:39,136 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:45:39,148 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-26 18:45:39,165 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-06-26 18:45:39,176 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-26 18:45:39,177 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2018-06-26 18:45:39,178 INFO ]: Start accepts. Automaton has 8 states and 12 transitions. Word has length 5 [2018-06-26 18:45:39,178 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:39,178 INFO ]: Abstraction has 8 states and 12 transitions. [2018-06-26 18:45:39,178 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:45:39,178 INFO ]: Start isEmpty. Operand 8 states and 12 transitions. [2018-06-26 18:45:39,179 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:45:39,179 INFO ]: Found error trace [2018-06-26 18:45:39,179 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:45:39,179 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:39,179 INFO ]: Analyzing trace with hash 39251526, now seen corresponding path program 1 times [2018-06-26 18:45:39,179 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:39,179 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:39,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:39,180 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:39,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:39,191 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:39,223 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:39,224 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:45:39,224 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:45:39,225 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:45:39,225 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:45:39,225 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:45:39,226 INFO ]: Start difference. First operand 8 states and 12 transitions. Second operand 3 states. [2018-06-26 18:45:39,281 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:39,281 INFO ]: Finished difference Result 9 states and 15 transitions. [2018-06-26 18:45:39,282 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:45:39,282 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:45:39,282 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:39,282 INFO ]: With dead ends: 9 [2018-06-26 18:45:39,282 INFO ]: Without dead ends: 9 [2018-06-26 18:45:39,283 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:45:39,283 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-26 18:45:39,284 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-26 18:45:39,284 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-26 18:45:39,284 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 15 transitions. [2018-06-26 18:45:39,285 INFO ]: Start accepts. Automaton has 9 states and 15 transitions. Word has length 5 [2018-06-26 18:45:39,285 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:39,285 INFO ]: Abstraction has 9 states and 15 transitions. [2018-06-26 18:45:39,285 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:45:39,285 INFO ]: Start isEmpty. Operand 9 states and 15 transitions. [2018-06-26 18:45:39,285 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:45:39,285 INFO ]: Found error trace [2018-06-26 18:45:39,285 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:45:39,285 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:39,285 INFO ]: Analyzing trace with hash 1217367373, now seen corresponding path program 1 times [2018-06-26 18:45:39,285 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:39,285 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:39,287 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:39,287 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:39,287 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:39,301 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:39,363 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:39,363 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:45:39,363 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:45:39,370 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:39,405 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:39,410 INFO ]: Computing forward predicates... [2018-06-26 18:45:39,452 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:39,473 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:45:39,473 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-26 18:45:39,474 INFO ]: Interpolant automaton has 4 states [2018-06-26 18:45:39,474 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-26 18:45:39,474 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-26 18:45:39,474 INFO ]: Start difference. First operand 9 states and 15 transitions. Second operand 4 states. [2018-06-26 18:45:39,488 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:39,488 INFO ]: Finished difference Result 9 states and 14 transitions. [2018-06-26 18:45:39,489 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-26 18:45:39,489 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-26 18:45:39,489 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:39,489 INFO ]: With dead ends: 9 [2018-06-26 18:45:39,489 INFO ]: Without dead ends: 7 [2018-06-26 18:45:39,489 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-26 18:45:39,490 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-26 18:45:39,491 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-26 18:45:39,491 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-26 18:45:39,491 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2018-06-26 18:45:39,491 INFO ]: Start accepts. Automaton has 7 states and 11 transitions. Word has length 6 [2018-06-26 18:45:39,491 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:39,491 INFO ]: Abstraction has 7 states and 11 transitions. [2018-06-26 18:45:39,491 INFO ]: Interpolant automaton has 4 states. [2018-06-26 18:45:39,491 INFO ]: Start isEmpty. Operand 7 states and 11 transitions. [2018-06-26 18:45:39,491 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:45:39,491 INFO ]: Found error trace [2018-06-26 18:45:39,491 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:45:39,492 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:39,492 INFO ]: Analyzing trace with hash 1216293936, now seen corresponding path program 1 times [2018-06-26 18:45:39,492 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:39,492 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:39,493 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:39,493 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:39,493 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:39,501 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:39,574 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:39,574 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:45:39,574 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:45:39,583 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:39,609 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:39,610 INFO ]: Computing forward predicates... [2018-06-26 18:45:39,704 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:39,722 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-26 18:45:39,723 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-06-26 18:45:39,723 INFO ]: Interpolant automaton has 5 states [2018-06-26 18:45:39,723 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-26 18:45:39,723 INFO ]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-26 18:45:39,723 INFO ]: Start difference. First operand 7 states and 11 transitions. Second operand 5 states. [2018-06-26 18:45:39,876 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:39,876 INFO ]: Finished difference Result 9 states and 16 transitions. [2018-06-26 18:45:39,877 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-26 18:45:39,877 INFO ]: Start accepts. Automaton has 5 states. Word has length 6 [2018-06-26 18:45:39,877 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:39,877 INFO ]: With dead ends: 9 [2018-06-26 18:45:39,877 INFO ]: Without dead ends: 7 [2018-06-26 18:45:39,878 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-26 18:45:39,878 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-26 18:45:39,879 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-26 18:45:39,879 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-26 18:45:39,879 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-06-26 18:45:39,879 INFO ]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2018-06-26 18:45:39,879 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:39,879 INFO ]: Abstraction has 7 states and 7 transitions. [2018-06-26 18:45:39,879 INFO ]: Interpolant automaton has 5 states. [2018-06-26 18:45:39,879 INFO ]: Start isEmpty. Operand 7 states and 7 transitions. [2018-06-26 18:45:39,879 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:45:39,879 INFO ]: Found error trace [2018-06-26 18:45:39,879 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:45:39,880 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:39,880 INFO ]: Analyzing trace with hash 1216383309, now seen corresponding path program 1 times [2018-06-26 18:45:39,880 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:39,880 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:39,880 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:39,880 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:39,880 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:39,900 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:39,958 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:39,958 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:45:39,958 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:45:39,964 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:39,984 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:39,986 INFO ]: Computing forward predicates... [2018-06-26 18:45:40,111 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:40,135 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:45:40,135 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-26 18:45:40,135 INFO ]: Interpolant automaton has 6 states [2018-06-26 18:45:40,135 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-26 18:45:40,135 INFO ]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-06-26 18:45:40,135 INFO ]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-06-26 18:45:40,140 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:40,141 INFO ]: Finished difference Result 4 states and 4 transitions. [2018-06-26 18:45:40,141 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-26 18:45:40,141 INFO ]: Start accepts. Automaton has 6 states. Word has length 6 [2018-06-26 18:45:40,141 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:40,141 INFO ]: With dead ends: 4 [2018-06-26 18:45:40,141 INFO ]: Without dead ends: 0 [2018-06-26 18:45:40,141 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-06-26 18:45:40,141 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:45:40,142 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:45:40,142 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:45:40,142 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:45:40,142 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-06-26 18:45:40,142 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:40,142 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:45:40,142 INFO ]: Interpolant automaton has 6 states. [2018-06-26 18:45:40,142 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:45:40,142 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:45:40,144 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:45:40,145 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:45:40 BasicIcfg [2018-06-26 18:45:40,145 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:45:40,146 INFO ]: Toolchain (without parser) took 1827.13 ms. Allocated memory is still 305.1 MB. Free memory was 261.6 MB in the beginning and 193.1 MB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 3.6 GB. [2018-06-26 18:45:40,147 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.1 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:45:40,148 INFO ]: ChcToBoogie took 61.85 ms. Allocated memory is still 305.1 MB. Free memory was 260.6 MB in the beginning and 258.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:45:40,148 INFO ]: Boogie Preprocessor took 35.60 ms. Allocated memory is still 305.1 MB. Free memory was 258.6 MB in the beginning and 257.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-26 18:45:40,149 INFO ]: RCFGBuilder took 306.70 ms. Allocated memory is still 305.1 MB. Free memory was 257.6 MB in the beginning and 249.6 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:45:40,150 INFO ]: BlockEncodingV2 took 98.85 ms. Allocated memory is still 305.1 MB. Free memory was 249.6 MB in the beginning and 246.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:45:40,150 INFO ]: TraceAbstraction took 1310.01 ms. Allocated memory is still 305.1 MB. Free memory was 245.6 MB in the beginning and 193.1 MB in the end (delta: 52.5 MB). Peak memory consumption was 52.5 MB. Max. memory is 3.6 GB. [2018-06-26 18:45:40,159 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 11 locations, 15 edges - StatisticsResult: Encoded RCFG 7 locations, 11 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 305.1 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 61.85 ms. Allocated memory is still 305.1 MB. Free memory was 260.6 MB in the beginning and 258.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 35.60 ms. Allocated memory is still 305.1 MB. Free memory was 258.6 MB in the beginning and 257.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 306.70 ms. Allocated memory is still 305.1 MB. Free memory was 257.6 MB in the beginning and 249.6 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 98.85 ms. Allocated memory is still 305.1 MB. Free memory was 249.6 MB in the beginning and 246.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1310.01 ms. Allocated memory is still 305.1 MB. Free memory was 245.6 MB in the beginning and 193.1 MB in the end (delta: 52.5 MB). Peak memory consumption was 52.5 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 2 procedures, 7 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 0 SDslu, 42 SDs, 0 SdLazy, 34 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 521 SizeOfPredicates, 9 NumberOfNonLiveVariables, 166 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 1/6 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/loop__while-if.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-45-40-175.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/loop__while-if.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-45-40-175.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/loop__while-if.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-45-40-175.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/loop__while-if.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-45-40-175.csv Received shutdown request...