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 0.1.23-62c3406-m [2018-06-26 18:07:11,213 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:07:11,215 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:07:11,226 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:07:11,226 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:07:11,227 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:07:11,228 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:07:11,230 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:07:11,231 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:07:11,232 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:07:11,233 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:07:11,234 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:07:11,234 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:07:11,235 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:07:11,236 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:07:11,237 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:07:11,237 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:07:11,242 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:07:11,244 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:07:11,245 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:07:11,246 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:07:11,248 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:07:11,250 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:07:11,250 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:07:11,250 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:07:11,251 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:07:11,252 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:07:11,253 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:07:11,254 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:07:11,255 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:07:11,255 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:07:11,255 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:07:11,256 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:07:11,256 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:07:11,257 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:07:11,257 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:07:11,258 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:07:11,272 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:07:11,272 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:07:11,272 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:07:11,272 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:07:11,273 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:07:11,273 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:07:11,274 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:07:11,274 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:07:11,274 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:07:11,274 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:07:11,274 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:07:11,275 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:07:11,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:07:11,275 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:07:11,275 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:07:11,275 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:07:11,275 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:07:11,276 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:07:11,276 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:07:11,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:07:11,276 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:07:11,278 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:07:11,278 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:07:11,323 INFO ]: Repository-Root is: /tmp [2018-06-26 18:07:11,339 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:07:11,344 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:07:11,345 INFO ]: Initializing SmtParser... [2018-06-26 18:07:11,346 INFO ]: SmtParser initialized [2018-06-26 18:07:11,346 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/016-horn.smt2 [2018-06-26 18:07:11,347 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 18:07:11,432 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/016-horn.smt2 unknown [2018-06-26 18:07:11,600 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/016-horn.smt2 [2018-06-26 18:07:11,610 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:07:11,615 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:07:11,616 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:07:11,616 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:07:11,616 INFO ]: ChcToBoogie initialized [2018-06-26 18:07:11,620 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:07:11" (1/1) ... [2018-06-26 18:07:11,670 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11 Unit [2018-06-26 18:07:11,670 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:07:11,672 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:07:11,672 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:07:11,672 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:07:11,689 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11" (1/1) ... [2018-06-26 18:07:11,690 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11" (1/1) ... [2018-06-26 18:07:11,694 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11" (1/1) ... [2018-06-26 18:07:11,694 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11" (1/1) ... [2018-06-26 18:07:11,697 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11" (1/1) ... [2018-06-26 18:07:11,699 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11" (1/1) ... [2018-06-26 18:07:11,700 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11" (1/1) ... [2018-06-26 18:07:11,701 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:07:11,702 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:07:11,702 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:07:11,702 INFO ]: RCFGBuilder initialized [2018-06-26 18:07:11,705 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11" (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 18:07:11,718 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:07:11,718 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:07:11,718 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:07:11,718 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:07:11,718 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:07:11,718 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 18:07:11,975 INFO ]: Using library mode [2018-06-26 18:07:11,975 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:07:11 BoogieIcfgContainer [2018-06-26 18:07:11,975 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:07:11,976 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:07:11,976 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:07:11,976 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:07:11,983 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:07:11" (1/1) ... [2018-06-26 18:07:12,003 INFO ]: Initial Icfg 10 locations, 12 edges [2018-06-26 18:07:12,006 INFO ]: Using Remove infeasible edges [2018-06-26 18:07:12,006 INFO ]: Using Maximize final states [2018-06-26 18:07:12,007 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:07:12,007 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:07:12,009 INFO ]: Using Remove sink states [2018-06-26 18:07:12,010 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:07:12,010 INFO ]: Using Use SBE [2018-06-26 18:07:12,015 INFO ]: SBE split 0 edges [2018-06-26 18:07:12,021 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-26 18:07:12,023 INFO ]: 0 new accepting states [2018-06-26 18:07:12,045 INFO ]: Removed 4 edges and 2 locations by large block encoding [2018-06-26 18:07:12,047 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:07:12,051 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:07:12,051 INFO ]: 0 new accepting states [2018-06-26 18:07:12,051 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:07:12,051 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:07:12,051 INFO ]: Encoded RCFG 6 locations, 8 edges [2018-06-26 18:07:12,052 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:07:12 BasicIcfg [2018-06-26 18:07:12,052 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:07:12,053 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:07:12,053 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:07:12,057 INFO ]: TraceAbstraction initialized [2018-06-26 18:07:12,057 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:07:11" (1/4) ... [2018-06-26 18:07:12,058 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7335686b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:07:12, skipping insertion in model container [2018-06-26 18:07:12,058 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:07:11" (2/4) ... [2018-06-26 18:07:12,058 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7335686b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:07:12, skipping insertion in model container [2018-06-26 18:07:12,058 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:07:11" (3/4) ... [2018-06-26 18:07:12,059 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7335686b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:07:12, skipping insertion in model container [2018-06-26 18:07:12,059 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:07:12" (4/4) ... [2018-06-26 18:07:12,060 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:07:12,074 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:07:12,082 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:07:12,122 INFO ]: Using default assertion order modulation [2018-06-26 18:07:12,122 INFO ]: Interprodecural is true [2018-06-26 18:07:12,122 INFO ]: Hoare is false [2018-06-26 18:07:12,122 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:07:12,122 INFO ]: Backedges is TWOTRACK [2018-06-26 18:07:12,122 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:07:12,122 INFO ]: Difference is false [2018-06-26 18:07:12,122 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:07:12,122 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:07:12,131 INFO ]: Start isEmpty. Operand 6 states. [2018-06-26 18:07:12,141 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:07:12,141 INFO ]: Found error trace [2018-06-26 18:07:12,141 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:07:12,142 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:07:12,146 INFO ]: Analyzing trace with hash 37311172, now seen corresponding path program 1 times [2018-06-26 18:07:12,148 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:07:12,149 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:07:12,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:12,180 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:07:12,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:12,232 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:07:12,338 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:07:12,340 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:07:12,340 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:07:12,342 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:07:12,353 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:07:12,353 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:07:12,356 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-26 18:07:12,456 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:07:12,456 INFO ]: Finished difference Result 7 states and 11 transitions. [2018-06-26 18:07:12,457 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:07:12,457 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:07:12,458 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:07:12,465 INFO ]: With dead ends: 7 [2018-06-26 18:07:12,465 INFO ]: Without dead ends: 7 [2018-06-26 18:07:12,467 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 18:07:12,480 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-26 18:07:12,493 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-26 18:07:12,494 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-26 18:07:12,495 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2018-06-26 18:07:12,496 INFO ]: Start accepts. Automaton has 7 states and 11 transitions. Word has length 5 [2018-06-26 18:07:12,496 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:07:12,496 INFO ]: Abstraction has 7 states and 11 transitions. [2018-06-26 18:07:12,496 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:07:12,496 INFO ]: Start isEmpty. Operand 7 states and 11 transitions. [2018-06-26 18:07:12,496 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:07:12,496 INFO ]: Found error trace [2018-06-26 18:07:12,496 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:07:12,496 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:07:12,497 INFO ]: Analyzing trace with hash 1156261132, now seen corresponding path program 1 times [2018-06-26 18:07:12,497 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:07:12,497 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:07:12,498 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:12,498 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:07:12,498 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:12,511 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:07:12,571 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:07:12,571 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:07:12,571 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:07:12,573 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:07:12,573 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:07:12,573 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:07:12,573 INFO ]: Start difference. First operand 7 states and 11 transitions. Second operand 3 states. [2018-06-26 18:07:12,609 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:07:12,609 INFO ]: Finished difference Result 8 states and 14 transitions. [2018-06-26 18:07:12,609 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:07:12,609 INFO ]: Start accepts. Automaton has 3 states. Word has length 6 [2018-06-26 18:07:12,610 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:07:12,610 INFO ]: With dead ends: 8 [2018-06-26 18:07:12,610 INFO ]: Without dead ends: 8 [2018-06-26 18:07:12,611 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 18:07:12,611 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-26 18:07:12,612 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-06-26 18:07:12,612 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-26 18:07:12,612 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2018-06-26 18:07:12,612 INFO ]: Start accepts. Automaton has 8 states and 14 transitions. Word has length 6 [2018-06-26 18:07:12,613 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:07:12,613 INFO ]: Abstraction has 8 states and 14 transitions. [2018-06-26 18:07:12,613 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:07:12,613 INFO ]: Start isEmpty. Operand 8 states and 14 transitions. [2018-06-26 18:07:12,613 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:07:12,613 INFO ]: Found error trace [2018-06-26 18:07:12,613 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:07:12,613 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:07:12,613 INFO ]: Analyzing trace with hash 1156320714, now seen corresponding path program 1 times [2018-06-26 18:07:12,613 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:07:12,613 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:07:12,614 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:12,614 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:07:12,614 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:12,629 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:07:12,712 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:07:12,712 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:07:12,712 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 18:07:12,719 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:07:12,749 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:07:12,754 INFO ]: Computing forward predicates... [2018-06-26 18:07:12,876 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:07:12,907 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-26 18:07:12,907 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-06-26 18:07:12,908 INFO ]: Interpolant automaton has 5 states [2018-06-26 18:07:12,908 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-26 18:07:12,908 INFO ]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-26 18:07:12,908 INFO ]: Start difference. First operand 8 states and 14 transitions. Second operand 5 states. [2018-06-26 18:07:13,068 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:07:13,068 INFO ]: Finished difference Result 12 states and 24 transitions. [2018-06-26 18:07:13,070 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-26 18:07:13,070 INFO ]: Start accepts. Automaton has 5 states. Word has length 6 [2018-06-26 18:07:13,070 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:07:13,070 INFO ]: With dead ends: 12 [2018-06-26 18:07:13,070 INFO ]: Without dead ends: 12 [2018-06-26 18:07:13,071 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 18:07:13,071 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-26 18:07:13,072 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 9. [2018-06-26 18:07:13,072 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-26 18:07:13,072 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2018-06-26 18:07:13,073 INFO ]: Start accepts. Automaton has 9 states and 16 transitions. Word has length 6 [2018-06-26 18:07:13,073 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:07:13,073 INFO ]: Abstraction has 9 states and 16 transitions. [2018-06-26 18:07:13,073 INFO ]: Interpolant automaton has 5 states. [2018-06-26 18:07:13,073 INFO ]: Start isEmpty. Operand 9 states and 16 transitions. [2018-06-26 18:07:13,073 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-26 18:07:13,073 INFO ]: Found error trace [2018-06-26 18:07:13,073 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:07:13,073 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:07:13,073 INFO ]: Analyzing trace with hash 1484001315, now seen corresponding path program 1 times [2018-06-26 18:07:13,073 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:07:13,073 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:07:13,076 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:13,076 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:07:13,076 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:13,107 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:07:13,250 INFO ]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:07:13,250 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:07:13,250 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 18:07:13,259 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:07:13,298 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:07:13,300 INFO ]: Computing forward predicates... [2018-06-26 18:07:13,378 INFO ]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:07:13,397 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:07:13,397 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2018-06-26 18:07:13,397 INFO ]: Interpolant automaton has 7 states [2018-06-26 18:07:13,397 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-26 18:07:13,397 INFO ]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-26 18:07:13,398 INFO ]: Start difference. First operand 9 states and 16 transitions. Second operand 7 states. [2018-06-26 18:07:13,661 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:07:13,661 INFO ]: Finished difference Result 14 states and 27 transitions. [2018-06-26 18:07:13,661 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-26 18:07:13,662 INFO ]: Start accepts. Automaton has 7 states. Word has length 7 [2018-06-26 18:07:13,662 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:07:13,662 INFO ]: With dead ends: 14 [2018-06-26 18:07:13,662 INFO ]: Without dead ends: 10 [2018-06-26 18:07:13,662 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-06-26 18:07:13,662 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-26 18:07:13,664 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-06-26 18:07:13,664 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-26 18:07:13,664 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2018-06-26 18:07:13,664 INFO ]: Start accepts. Automaton has 9 states and 13 transitions. Word has length 7 [2018-06-26 18:07:13,664 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:07:13,664 INFO ]: Abstraction has 9 states and 13 transitions. [2018-06-26 18:07:13,664 INFO ]: Interpolant automaton has 7 states. [2018-06-26 18:07:13,664 INFO ]: Start isEmpty. Operand 9 states and 13 transitions. [2018-06-26 18:07:13,665 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-26 18:07:13,665 INFO ]: Found error trace [2018-06-26 18:07:13,665 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-06-26 18:07:13,665 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:07:13,665 INFO ]: Analyzing trace with hash -1183696598, now seen corresponding path program 1 times [2018-06-26 18:07:13,665 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:07:13,665 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:07:13,666 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:13,666 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:07:13,666 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:07:13,681 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:07:13,760 INFO ]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:07:13,760 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:07:13,760 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 18:07:13,785 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:07:13,810 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:07:13,812 INFO ]: Computing forward predicates... [2018-06-26 18:07:14,012 INFO ]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:07:14,038 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:07:14,038 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-06-26 18:07:14,038 INFO ]: Interpolant automaton has 8 states [2018-06-26 18:07:14,038 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-26 18:07:14,038 INFO ]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-06-26 18:07:14,038 INFO ]: Start difference. First operand 9 states and 13 transitions. Second operand 8 states. [2018-06-26 18:07:14,431 WARN ]: Spent 194.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-06-26 18:07:14,528 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:07:14,528 INFO ]: Finished difference Result 11 states and 20 transitions. [2018-06-26 18:07:14,529 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-26 18:07:14,529 INFO ]: Start accepts. Automaton has 8 states. Word has length 8 [2018-06-26 18:07:14,529 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:07:14,529 INFO ]: With dead ends: 11 [2018-06-26 18:07:14,529 INFO ]: Without dead ends: 0 [2018-06-26 18:07:14,530 INFO ]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2018-06-26 18:07:14,530 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:07:14,530 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:07:14,530 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:07:14,530 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:07:14,530 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-06-26 18:07:14,530 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:07:14,530 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:07:14,530 INFO ]: Interpolant automaton has 8 states. [2018-06-26 18:07:14,530 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:07:14,530 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:07:14,532 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:07:14,534 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:07:14 BasicIcfg [2018-06-26 18:07:14,534 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:07:14,534 INFO ]: Toolchain (without parser) took 2924.29 ms. Allocated memory was 308.3 MB in the beginning and 325.6 MB in the end (delta: 17.3 MB). Free memory was 264.6 MB in the beginning and 267.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 3.6 GB. [2018-06-26 18:07:14,535 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:07:14,536 INFO ]: ChcToBoogie took 54.55 ms. Allocated memory is still 308.3 MB. Free memory was 264.6 MB in the beginning and 262.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:07:14,536 INFO ]: Boogie Preprocessor took 29.09 ms. Allocated memory is still 308.3 MB. Free memory was 262.6 MB in the beginning and 260.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:07:14,537 INFO ]: RCFGBuilder took 273.33 ms. Allocated memory is still 308.3 MB. Free memory was 260.6 MB in the beginning and 252.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 3.6 GB. [2018-06-26 18:07:14,537 INFO ]: BlockEncodingV2 took 76.30 ms. Allocated memory is still 308.3 MB. Free memory was 252.5 MB in the beginning and 250.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:07:14,538 INFO ]: TraceAbstraction took 2480.85 ms. Allocated memory was 308.3 MB in the beginning and 325.6 MB in the end (delta: 17.3 MB). Free memory was 250.5 MB in the beginning and 267.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 278.4 kB. Max. memory is 3.6 GB. [2018-06-26 18:07:14,545 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 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 54.55 ms. Allocated memory is still 308.3 MB. Free memory was 264.6 MB in the beginning and 262.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 29.09 ms. Allocated memory is still 308.3 MB. Free memory was 262.6 MB in the beginning and 260.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 273.33 ms. Allocated memory is still 308.3 MB. Free memory was 260.6 MB in the beginning and 252.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 76.30 ms. Allocated memory is still 308.3 MB. Free memory was 252.5 MB in the beginning and 250.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2480.85 ms. Allocated memory was 308.3 MB in the beginning and 325.6 MB in the end (delta: 17.3 MB). Free memory was 250.5 MB in the beginning and 267.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 278.4 kB. 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, 2.4s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 26 SDs, 0 SdLazy, 97 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s 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, 0.8s 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-0-2018-06-26_18-07-14-557.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-1-2018-06-26_18-07-14-557.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-0-2018-06-26_18-07-14-557.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-0-2018-06-26_18-07-14-557.csv Received shutdown request...