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/eldarica-misc/LIA/reve/016-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:05:11,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:05:11,863 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:05:11,875 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:05:11,875 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:05:11,876 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:05:11,878 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:05:11,880 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:05:11,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:05:11,883 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:05:11,884 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:05:11,884 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:05:11,885 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:05:11,888 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:05:11,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:05:11,889 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:05:11,900 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:05:11,902 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:05:11,904 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:05:11,905 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:05:11,906 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:05:11,916 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:05:11,917 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:05:11,917 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:05:11,918 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:05:11,918 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:05:11,919 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:05:11,920 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:05:11,921 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:05:11,921 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:05:11,921 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:05:11,922 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:05:11,922 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:05:11,928 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:05:11,929 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:05:11,929 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:05:11,950 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:05:11,950 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:05:11,950 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:05:11,951 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:05:11,952 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:05:11,952 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:05:11,952 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:05:11,953 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:05:11,953 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:05:11,953 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:05:11,953 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:05:11,953 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:05:11,953 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:05:11,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:05:11,954 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:05:11,954 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:05:11,954 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:05:11,954 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:05:11,955 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:05:11,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:05:11,958 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:05:11,959 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:05:11,960 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:05:12,005 INFO ]: Repository-Root is: /tmp [2018-06-24 21:05:12,020 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:05:12,025 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:05:12,026 INFO ]: Initializing SmtParser... [2018-06-24 21:05:12,026 INFO ]: SmtParser initialized [2018-06-24 21:05:12,026 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/016-horn.smt2 [2018-06-24 21:05:12,027 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 [2018-06-24 21:05:12,111 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/016-horn.smt2 unknown [2018-06-24 21:05:12,260 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/016-horn.smt2 [2018-06-24 21:05:12,267 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:05:12,273 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:05:12,274 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:05:12,274 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:05:12,274 INFO ]: ChcToBoogie initialized [2018-06-24 21:05:12,280 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:05:12" (1/1) ... [2018-06-24 21:05:12,333 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12 Unit [2018-06-24 21:05:12,333 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:05:12,334 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:05:12,334 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:05:12,334 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:05:12,351 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12" (1/1) ... [2018-06-24 21:05:12,351 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12" (1/1) ... [2018-06-24 21:05:12,355 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12" (1/1) ... [2018-06-24 21:05:12,355 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12" (1/1) ... [2018-06-24 21:05:12,357 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12" (1/1) ... [2018-06-24 21:05:12,358 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12" (1/1) ... [2018-06-24 21:05:12,359 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12" (1/1) ... [2018-06-24 21:05:12,360 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:05:12,361 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:05:12,361 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:05:12,361 INFO ]: RCFGBuilder initialized [2018-06-24 21:05:12,362 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12" (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) [2018-06-24 21:05:12,380 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:05:12,380 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:05:12,380 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:05:12,380 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:05:12,380 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:05:12,381 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 [2018-06-24 21:05:12,628 INFO ]: Using library mode [2018-06-24 21:05:12,629 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:05:12 BoogieIcfgContainer [2018-06-24 21:05:12,629 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:05:12,629 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:05:12,629 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:05:12,630 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:05:12,631 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:05:12" (1/1) ... [2018-06-24 21:05:12,643 INFO ]: Initial Icfg 10 locations, 12 edges [2018-06-24 21:05:12,644 INFO ]: Using Remove infeasible edges [2018-06-24 21:05:12,645 INFO ]: Using Maximize final states [2018-06-24 21:05:12,645 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:05:12,646 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:05:12,647 INFO ]: Using Remove sink states [2018-06-24 21:05:12,648 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:05:12,648 INFO ]: Using Use SBE [2018-06-24 21:05:12,653 INFO ]: SBE split 0 edges [2018-06-24 21:05:12,662 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-24 21:05:12,663 INFO ]: 0 new accepting states [2018-06-24 21:05:12,689 INFO ]: Removed 4 edges and 2 locations by large block encoding [2018-06-24 21:05:12,690 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:05:12,695 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:05:12,695 INFO ]: 0 new accepting states [2018-06-24 21:05:12,695 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:05:12,695 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:05:12,695 INFO ]: Encoded RCFG 6 locations, 8 edges [2018-06-24 21:05:12,698 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:05:12 BasicIcfg [2018-06-24 21:05:12,698 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:05:12,699 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:05:12,699 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:05:12,703 INFO ]: TraceAbstraction initialized [2018-06-24 21:05:12,703 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:05:12" (1/4) ... [2018-06-24 21:05:12,704 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4330ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:05:12, skipping insertion in model container [2018-06-24 21:05:12,704 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:12" (2/4) ... [2018-06-24 21:05:12,704 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4330ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:05:12, skipping insertion in model container [2018-06-24 21:05:12,704 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:05:12" (3/4) ... [2018-06-24 21:05:12,704 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4330ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:05:12, skipping insertion in model container [2018-06-24 21:05:12,705 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:05:12" (4/4) ... [2018-06-24 21:05:12,710 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:05:12,719 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:05:12,727 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:05:12,777 INFO ]: Using default assertion order modulation [2018-06-24 21:05:12,777 INFO ]: Interprodecural is true [2018-06-24 21:05:12,777 INFO ]: Hoare is false [2018-06-24 21:05:12,777 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:05:12,777 INFO ]: Backedges is TWOTRACK [2018-06-24 21:05:12,777 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:05:12,777 INFO ]: Difference is false [2018-06-24 21:05:12,777 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:05:12,777 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:05:12,792 INFO ]: Start isEmpty. Operand 6 states. [2018-06-24 21:05:12,809 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:05:12,810 INFO ]: Found error trace [2018-06-24 21:05:12,810 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:05:12,811 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:12,814 INFO ]: Analyzing trace with hash 37311172, now seen corresponding path program 1 times [2018-06-24 21:05:12,816 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:12,816 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:12,850 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:12,850 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:12,850 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:12,894 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:13,014 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:13,017 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:05:13,017 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:05:13,019 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:05:13,029 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:05:13,029 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:05:13,031 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-24 21:05:13,126 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:13,126 INFO ]: Finished difference Result 7 states and 11 transitions. [2018-06-24 21:05:13,126 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:05:13,127 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:05:13,128 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:13,134 INFO ]: With dead ends: 7 [2018-06-24 21:05:13,134 INFO ]: Without dead ends: 7 [2018-06-24 21:05:13,136 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 [2018-06-24 21:05:13,147 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-24 21:05:13,177 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-24 21:05:13,178 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-24 21:05:13,179 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2018-06-24 21:05:13,180 INFO ]: Start accepts. Automaton has 7 states and 11 transitions. Word has length 5 [2018-06-24 21:05:13,180 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:13,180 INFO ]: Abstraction has 7 states and 11 transitions. [2018-06-24 21:05:13,180 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:05:13,180 INFO ]: Start isEmpty. Operand 7 states and 11 transitions. [2018-06-24 21:05:13,180 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:05:13,180 INFO ]: Found error trace [2018-06-24 21:05:13,180 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:05:13,180 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:13,181 INFO ]: Analyzing trace with hash 1156261132, now seen corresponding path program 1 times [2018-06-24 21:05:13,181 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:13,181 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:13,181 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:13,181 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:13,181 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:13,201 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:13,341 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:13,341 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:05:13,341 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:05:13,343 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:05:13,343 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:05:13,343 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:05:13,343 INFO ]: Start difference. First operand 7 states and 11 transitions. Second operand 3 states. [2018-06-24 21:05:13,486 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:13,486 INFO ]: Finished difference Result 8 states and 14 transitions. [2018-06-24 21:05:13,487 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:05:13,487 INFO ]: Start accepts. Automaton has 3 states. Word has length 6 [2018-06-24 21:05:13,487 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:13,488 INFO ]: With dead ends: 8 [2018-06-24 21:05:13,488 INFO ]: Without dead ends: 8 [2018-06-24 21:05:13,488 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:05:13,488 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-24 21:05:13,490 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-06-24 21:05:13,490 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-24 21:05:13,490 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2018-06-24 21:05:13,490 INFO ]: Start accepts. Automaton has 8 states and 14 transitions. Word has length 6 [2018-06-24 21:05:13,490 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:13,490 INFO ]: Abstraction has 8 states and 14 transitions. [2018-06-24 21:05:13,490 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:05:13,490 INFO ]: Start isEmpty. Operand 8 states and 14 transitions. [2018-06-24 21:05:13,490 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:05:13,490 INFO ]: Found error trace [2018-06-24 21:05:13,491 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:05:13,491 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:13,492 INFO ]: Analyzing trace with hash 1156320714, now seen corresponding path program 1 times [2018-06-24 21:05:13,492 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:13,492 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:13,492 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:13,493 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:13,493 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:13,509 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:13,586 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:13,586 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:05:13,586 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 [2018-06-24 21:05:13,599 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:13,638 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:13,646 INFO ]: Computing forward predicates... [2018-06-24 21:05:13,686 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:13,708 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-24 21:05:13,708 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-06-24 21:05:13,709 INFO ]: Interpolant automaton has 5 states [2018-06-24 21:05:13,709 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 21:05:13,709 INFO ]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 21:05:13,709 INFO ]: Start difference. First operand 8 states and 14 transitions. Second operand 5 states. [2018-06-24 21:05:13,918 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:13,918 INFO ]: Finished difference Result 12 states and 24 transitions. [2018-06-24 21:05:13,919 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-24 21:05:13,919 INFO ]: Start accepts. Automaton has 5 states. Word has length 6 [2018-06-24 21:05:13,919 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:13,919 INFO ]: With dead ends: 12 [2018-06-24 21:05:13,919 INFO ]: Without dead ends: 12 [2018-06-24 21:05:13,920 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 21:05:13,920 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-24 21:05:13,921 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 9. [2018-06-24 21:05:13,921 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 21:05:13,922 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2018-06-24 21:05:13,922 INFO ]: Start accepts. Automaton has 9 states and 16 transitions. Word has length 6 [2018-06-24 21:05:13,922 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:13,922 INFO ]: Abstraction has 9 states and 16 transitions. [2018-06-24 21:05:13,922 INFO ]: Interpolant automaton has 5 states. [2018-06-24 21:05:13,922 INFO ]: Start isEmpty. Operand 9 states and 16 transitions. [2018-06-24 21:05:13,923 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-24 21:05:13,923 INFO ]: Found error trace [2018-06-24 21:05:13,923 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:05:13,923 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:13,923 INFO ]: Analyzing trace with hash 1484001315, now seen corresponding path program 1 times [2018-06-24 21:05:13,923 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:13,923 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:13,924 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:13,924 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:13,924 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:13,950 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:14,098 INFO ]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:14,098 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:05:14,098 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 [2018-06-24 21:05:14,116 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:14,166 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:14,168 INFO ]: Computing forward predicates... [2018-06-24 21:05:14,419 INFO ]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:14,454 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:05:14,454 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2018-06-24 21:05:14,454 INFO ]: Interpolant automaton has 7 states [2018-06-24 21:05:14,454 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-24 21:05:14,454 INFO ]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-24 21:05:14,454 INFO ]: Start difference. First operand 9 states and 16 transitions. Second operand 7 states. [2018-06-24 21:05:14,645 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:14,645 INFO ]: Finished difference Result 14 states and 27 transitions. [2018-06-24 21:05:14,645 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-24 21:05:14,645 INFO ]: Start accepts. Automaton has 7 states. Word has length 7 [2018-06-24 21:05:14,645 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:14,646 INFO ]: With dead ends: 14 [2018-06-24 21:05:14,646 INFO ]: Without dead ends: 10 [2018-06-24 21:05:14,646 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-06-24 21:05:14,646 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-24 21:05:14,647 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-06-24 21:05:14,648 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 21:05:14,648 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2018-06-24 21:05:14,648 INFO ]: Start accepts. Automaton has 9 states and 13 transitions. Word has length 7 [2018-06-24 21:05:14,648 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:14,648 INFO ]: Abstraction has 9 states and 13 transitions. [2018-06-24 21:05:14,648 INFO ]: Interpolant automaton has 7 states. [2018-06-24 21:05:14,648 INFO ]: Start isEmpty. Operand 9 states and 13 transitions. [2018-06-24 21:05:14,648 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 21:05:14,648 INFO ]: Found error trace [2018-06-24 21:05:14,648 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-06-24 21:05:14,648 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:14,649 INFO ]: Analyzing trace with hash -1183696598, now seen corresponding path program 1 times [2018-06-24 21:05:14,649 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:14,649 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:14,649 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:14,649 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:14,649 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:14,668 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:14,717 INFO ]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 21:05:14,717 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:05:14,717 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 [2018-06-24 21:05:14,741 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:14,768 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:14,770 INFO ]: Computing forward predicates... [2018-06-24 21:05:14,905 INFO ]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:14,933 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:05:14,933 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-06-24 21:05:14,933 INFO ]: Interpolant automaton has 8 states [2018-06-24 21:05:14,933 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-24 21:05:14,933 INFO ]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-06-24 21:05:14,933 INFO ]: Start difference. First operand 9 states and 13 transitions. Second operand 8 states. [2018-06-24 21:05:15,336 WARN ]: Spent 188.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-06-24 21:05:15,430 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:15,430 INFO ]: Finished difference Result 11 states and 20 transitions. [2018-06-24 21:05:15,430 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-24 21:05:15,431 INFO ]: Start accepts. Automaton has 8 states. Word has length 8 [2018-06-24 21:05:15,431 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:15,431 INFO ]: With dead ends: 11 [2018-06-24 21:05:15,431 INFO ]: Without dead ends: 0 [2018-06-24 21:05:15,431 INFO ]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2018-06-24 21:05:15,431 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:05:15,431 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:05:15,431 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:05:15,431 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:05:15,431 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-06-24 21:05:15,431 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:15,431 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:05:15,431 INFO ]: Interpolant automaton has 8 states. [2018-06-24 21:05:15,431 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:05:15,431 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:05:15,433 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:05:15,434 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:05:15 BasicIcfg [2018-06-24 21:05:15,434 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:05:15,435 INFO ]: Toolchain (without parser) took 3167.55 ms. Allocated memory was 305.1 MB in the beginning and 324.5 MB in the end (delta: 19.4 MB). Free memory was 261.6 MB in the beginning and 266.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:05:15,436 INFO ]: SmtParser took 0.05 ms. Allocated memory is still 305.1 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:05:15,437 INFO ]: ChcToBoogie took 59.30 ms. Allocated memory is still 305.1 MB. Free memory was 261.6 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:05:15,437 INFO ]: Boogie Preprocessor took 26.67 ms. Allocated memory is still 305.1 MB. Free memory was 259.7 MB in the beginning and 257.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:05:15,438 INFO ]: RCFGBuilder took 267.92 ms. Allocated memory is still 305.1 MB. Free memory was 257.7 MB in the beginning and 249.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:05:15,438 INFO ]: BlockEncodingV2 took 69.26 ms. Allocated memory is still 305.1 MB. Free memory was 249.7 MB in the beginning and 247.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:05:15,439 INFO ]: TraceAbstraction took 2735.06 ms. Allocated memory was 305.1 MB in the beginning and 324.5 MB in the end (delta: 19.4 MB). Free memory was 246.7 MB in the beginning and 266.1 MB in the end (delta: -19.4 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:05:15,443 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 12 edges - StatisticsResult: Encoded RCFG 6 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.05 ms. Allocated memory is still 305.1 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 59.30 ms. Allocated memory is still 305.1 MB. Free memory was 261.6 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 26.67 ms. Allocated memory is still 305.1 MB. Free memory was 259.7 MB in the beginning and 257.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 267.92 ms. Allocated memory is still 305.1 MB. Free memory was 257.7 MB in the beginning and 249.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 69.26 ms. Allocated memory is still 305.1 MB. Free memory was 249.7 MB in the beginning and 247.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2735.06 ms. Allocated memory was 305.1 MB in the beginning and 324.5 MB in the end (delta: 19.4 MB). Free memory was 246.7 MB in the beginning and 266.1 MB in the end (delta: -19.4 MB). There was no memory consumed. 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, 6 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 26 SDs, 0 SdLazy, 97 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=3, 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1021 SizeOfPredicates, 12 NumberOfNonLiveVariables, 279 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 9/21 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/016-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-05-15-456.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/016-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-05-15-456.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/016-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-05-15-456.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/016-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-05-15-456.csv Received shutdown request...