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__break_single.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:44:57,261 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:44:57,263 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:44:57,276 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:44:57,277 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:44:57,278 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:44:57,279 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:44:57,281 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:44:57,282 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:44:57,283 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:44:57,283 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:44:57,285 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:44:57,286 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:44:57,286 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:44:57,287 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:44:57,288 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:44:57,291 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:44:57,293 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:44:57,295 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:44:57,304 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:44:57,305 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:44:57,306 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:44:57,310 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:44:57,310 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:44:57,310 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:44:57,311 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:44:57,312 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:44:57,312 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:44:57,314 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:44:57,315 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:44:57,315 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:44:57,316 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:44:57,316 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:44:57,316 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:44:57,317 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:44:57,317 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:44:57,318 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:44:57,338 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:44:57,338 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:44:57,344 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:44:57,344 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:44:57,345 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:44:57,345 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:44:57,345 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:44:57,346 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:44:57,346 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:44:57,346 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:44:57,346 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:44:57,346 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:44:57,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:44:57,347 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:44:57,347 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:44:57,347 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:44:57,347 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:44:57,347 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:44:57,348 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:44:57,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:44:57,348 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:44:57,349 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:44:57,349 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:44:57,396 INFO ]: Repository-Root is: /tmp [2018-06-26 18:44:57,412 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:44:57,415 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:44:57,416 INFO ]: Initializing SmtParser... [2018-06-26 18:44:57,417 INFO ]: SmtParser initialized [2018-06-26 18:44:57,417 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/loop__break_single.smt2 [2018-06-26 18:44:57,418 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 18:44:57,505 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/loop__break_single.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@74d066d8 [2018-06-26 18:44:57,670 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/loop__break_single.smt2 [2018-06-26 18:44:57,679 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:44:57,691 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:44:57,691 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:44:57,691 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:44:57,692 INFO ]: ChcToBoogie initialized [2018-06-26 18:44:57,695 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:44:57" (1/1) ... [2018-06-26 18:44:57,747 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57 Unit [2018-06-26 18:44:57,747 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:44:57,748 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:44:57,748 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:44:57,748 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:44:57,769 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57" (1/1) ... [2018-06-26 18:44:57,770 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57" (1/1) ... [2018-06-26 18:44:57,775 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57" (1/1) ... [2018-06-26 18:44:57,775 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57" (1/1) ... [2018-06-26 18:44:57,777 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57" (1/1) ... [2018-06-26 18:44:57,779 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57" (1/1) ... [2018-06-26 18:44:57,780 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57" (1/1) ... [2018-06-26 18:44:57,781 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:44:57,782 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:44:57,782 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:44:57,783 INFO ]: RCFGBuilder initialized [2018-06-26 18:44:57,784 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57" (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 18:44:57,800 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:44:57,800 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:44:57,801 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:44:57,801 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:44:57,801 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:44:57,801 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 18:44:58,014 INFO ]: Using library mode [2018-06-26 18:44:58,015 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:44:58 BoogieIcfgContainer [2018-06-26 18:44:58,015 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:44:58,015 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:44:58,015 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:44:58,022 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:44:58,023 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:44:58" (1/1) ... [2018-06-26 18:44:58,045 INFO ]: Initial Icfg 10 locations, 12 edges [2018-06-26 18:44:58,046 INFO ]: Using Remove infeasible edges [2018-06-26 18:44:58,047 INFO ]: Using Maximize final states [2018-06-26 18:44:58,047 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:44:58,048 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:44:58,049 INFO ]: Using Remove sink states [2018-06-26 18:44:58,050 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:44:58,050 INFO ]: Using Use SBE [2018-06-26 18:44:58,084 INFO ]: SBE split 3 edges [2018-06-26 18:44:58,090 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-26 18:44:58,095 INFO ]: 0 new accepting states [2018-06-26 18:44:58,145 INFO ]: Removed 7 edges and 2 locations by large block encoding [2018-06-26 18:44:58,146 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:44:58,148 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:44:58,148 INFO ]: 0 new accepting states [2018-06-26 18:44:58,148 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:44:58,148 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:44:58,148 INFO ]: Encoded RCFG 6 locations, 13 edges [2018-06-26 18:44:58,149 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:44:58 BasicIcfg [2018-06-26 18:44:58,149 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:44:58,150 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:44:58,150 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:44:58,153 INFO ]: TraceAbstraction initialized [2018-06-26 18:44:58,153 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:44:57" (1/4) ... [2018-06-26 18:44:58,154 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40534db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:44:58, skipping insertion in model container [2018-06-26 18:44:58,154 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:44:57" (2/4) ... [2018-06-26 18:44:58,154 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40534db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:44:58, skipping insertion in model container [2018-06-26 18:44:58,154 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:44:58" (3/4) ... [2018-06-26 18:44:58,154 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40534db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:44:58, skipping insertion in model container [2018-06-26 18:44:58,154 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:44:58" (4/4) ... [2018-06-26 18:44:58,160 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:44:58,167 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:44:58,173 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:44:58,213 INFO ]: Using default assertion order modulation [2018-06-26 18:44:58,213 INFO ]: Interprodecural is true [2018-06-26 18:44:58,213 INFO ]: Hoare is false [2018-06-26 18:44:58,213 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:44:58,213 INFO ]: Backedges is TWOTRACK [2018-06-26 18:44:58,213 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:44:58,213 INFO ]: Difference is false [2018-06-26 18:44:58,213 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:44:58,213 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:44:58,223 INFO ]: Start isEmpty. Operand 6 states. [2018-06-26 18:44:58,232 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:44:58,232 INFO ]: Found error trace [2018-06-26 18:44:58,233 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:44:58,233 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:44:58,238 INFO ]: Analyzing trace with hash 37560071, now seen corresponding path program 1 times [2018-06-26 18:44:58,240 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:44:58,240 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:44:58,286 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:44:58,286 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:44:58,286 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:44:58,329 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:44:58,434 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:44:58,436 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:44:58,436 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:44:58,437 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:44:58,449 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:44:58,449 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:44:58,453 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-26 18:44:58,592 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:44:58,592 INFO ]: Finished difference Result 7 states and 18 transitions. [2018-06-26 18:44:58,593 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:44:58,594 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:44:58,594 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:44:58,602 INFO ]: With dead ends: 7 [2018-06-26 18:44:58,602 INFO ]: Without dead ends: 7 [2018-06-26 18:44:58,603 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 18:44:58,617 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-26 18:44:58,637 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-26 18:44:58,638 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-26 18:44:58,639 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 18 transitions. [2018-06-26 18:44:58,640 INFO ]: Start accepts. Automaton has 7 states and 18 transitions. Word has length 5 [2018-06-26 18:44:58,641 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:44:58,641 INFO ]: Abstraction has 7 states and 18 transitions. [2018-06-26 18:44:58,641 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:44:58,641 INFO ]: Start isEmpty. Operand 7 states and 18 transitions. [2018-06-26 18:44:58,642 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:44:58,642 INFO ]: Found error trace [2018-06-26 18:44:58,642 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:44:58,642 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:44:58,642 INFO ]: Analyzing trace with hash 1163659871, now seen corresponding path program 1 times [2018-06-26 18:44:58,642 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:44:58,642 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:44:58,644 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:44:58,644 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:44:58,644 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:44:58,659 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:44:58,952 WARN ]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-26 18:44:58,953 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:44:58,953 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:44:58,953 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 18:44:58,961 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:44:58,987 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:44:58,994 INFO ]: Computing forward predicates... [2018-06-26 18:44:59,015 INFO ]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:44:59,047 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-26 18:44:59,047 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2018-06-26 18:44:59,047 INFO ]: Interpolant automaton has 4 states [2018-06-26 18:44:59,047 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-26 18:44:59,047 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-26 18:44:59,048 INFO ]: Start difference. First operand 7 states and 18 transitions. Second operand 4 states. [2018-06-26 18:44:59,139 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:44:59,139 INFO ]: Finished difference Result 8 states and 23 transitions. [2018-06-26 18:44:59,140 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:44:59,140 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-26 18:44:59,140 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:44:59,140 INFO ]: With dead ends: 8 [2018-06-26 18:44:59,140 INFO ]: Without dead ends: 8 [2018-06-26 18:44:59,141 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-26 18:44:59,141 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-26 18:44:59,142 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-06-26 18:44:59,142 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-26 18:44:59,143 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 18 transitions. [2018-06-26 18:44:59,143 INFO ]: Start accepts. Automaton has 7 states and 18 transitions. Word has length 6 [2018-06-26 18:44:59,143 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:44:59,143 INFO ]: Abstraction has 7 states and 18 transitions. [2018-06-26 18:44:59,143 INFO ]: Interpolant automaton has 4 states. [2018-06-26 18:44:59,143 INFO ]: Start isEmpty. Operand 7 states and 18 transitions. [2018-06-26 18:44:59,144 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:44:59,144 INFO ]: Found error trace [2018-06-26 18:44:59,144 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:44:59,144 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:44:59,144 INFO ]: Analyzing trace with hash 1164136527, now seen corresponding path program 1 times [2018-06-26 18:44:59,144 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:44:59,144 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:44:59,145 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:44:59,145 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:44:59,145 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:44:59,153 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:44:59,310 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:44:59,310 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:44:59,310 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) [2018-06-26 18:44:59,324 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:44:59,353 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:44:59,355 INFO ]: Computing forward predicates... [2018-06-26 18:44:59,515 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:44:59,535 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-26 18:44:59,535 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2018-06-26 18:44:59,535 INFO ]: Interpolant automaton has 6 states [2018-06-26 18:44:59,535 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-26 18:44:59,535 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-26 18:44:59,536 INFO ]: Start difference. First operand 7 states and 18 transitions. Second operand 6 states. [2018-06-26 18:44:59,864 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:44:59,864 INFO ]: Finished difference Result 15 states and 56 transitions. [2018-06-26 18:44:59,865 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-26 18:44:59,865 INFO ]: Start accepts. Automaton has 6 states. Word has length 6 [2018-06-26 18:44:59,865 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:44:59,865 INFO ]: With dead ends: 15 [2018-06-26 18:44:59,866 INFO ]: Without dead ends: 15 [2018-06-26 18:44:59,866 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-06-26 18:44:59,866 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-26 18:44:59,868 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 12. [2018-06-26 18:44:59,868 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-26 18:44:59,869 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 41 transitions. [2018-06-26 18:44:59,869 INFO ]: Start accepts. Automaton has 12 states and 41 transitions. Word has length 6 [2018-06-26 18:44:59,869 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:44:59,869 INFO ]: Abstraction has 12 states and 41 transitions. [2018-06-26 18:44:59,869 INFO ]: Interpolant automaton has 6 states. [2018-06-26 18:44:59,869 INFO ]: Start isEmpty. Operand 12 states and 41 transitions. [2018-06-26 18:44:59,869 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:44:59,869 INFO ]: Found error trace [2018-06-26 18:44:59,870 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:44:59,870 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:44:59,870 INFO ]: Analyzing trace with hash 1164196109, now seen corresponding path program 1 times [2018-06-26 18:44:59,870 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:44:59,870 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:44:59,870 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:44:59,871 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:44:59,871 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:44:59,879 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:44:59,912 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:44:59,913 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:44:59,913 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 18:44:59,919 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:44:59,953 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:44:59,954 INFO ]: Computing forward predicates... [2018-06-26 18:45:00,016 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:00,036 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-26 18:45:00,036 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2018-06-26 18:45:00,037 INFO ]: Interpolant automaton has 6 states [2018-06-26 18:45:00,037 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-26 18:45:00,037 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-26 18:45:00,037 INFO ]: Start difference. First operand 12 states and 41 transitions. Second operand 6 states. [2018-06-26 18:45:00,608 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:00,608 INFO ]: Finished difference Result 24 states and 95 transitions. [2018-06-26 18:45:00,609 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-26 18:45:00,609 INFO ]: Start accepts. Automaton has 6 states. Word has length 6 [2018-06-26 18:45:00,609 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:00,611 INFO ]: With dead ends: 24 [2018-06-26 18:45:00,611 INFO ]: Without dead ends: 24 [2018-06-26 18:45:00,611 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-06-26 18:45:00,611 INFO ]: Start minimizeSevpa. Operand 24 states. [2018-06-26 18:45:00,615 INFO ]: Finished minimizeSevpa. Reduced states from 24 to 17. [2018-06-26 18:45:00,615 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-26 18:45:00,615 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 65 transitions. [2018-06-26 18:45:00,616 INFO ]: Start accepts. Automaton has 17 states and 65 transitions. Word has length 6 [2018-06-26 18:45:00,616 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:00,616 INFO ]: Abstraction has 17 states and 65 transitions. [2018-06-26 18:45:00,616 INFO ]: Interpolant automaton has 6 states. [2018-06-26 18:45:00,616 INFO ]: Start isEmpty. Operand 17 states and 65 transitions. [2018-06-26 18:45:00,616 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:45:00,616 INFO ]: Found error trace [2018-06-26 18:45:00,616 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:45:00,616 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:00,616 INFO ]: Analyzing trace with hash 1165119630, now seen corresponding path program 1 times [2018-06-26 18:45:00,616 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:00,616 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:00,617 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:00,617 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:00,617 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:00,623 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:00,681 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:00,681 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:45:00,682 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:45:00,682 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:45:00,682 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:45:00,682 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:45:00,682 INFO ]: Start difference. First operand 17 states and 65 transitions. Second operand 3 states. [2018-06-26 18:45:00,706 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:00,706 INFO ]: Finished difference Result 19 states and 72 transitions. [2018-06-26 18:45:00,707 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:45:00,707 INFO ]: Start accepts. Automaton has 3 states. Word has length 6 [2018-06-26 18:45:00,707 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:00,707 INFO ]: With dead ends: 19 [2018-06-26 18:45:00,707 INFO ]: Without dead ends: 19 [2018-06-26 18:45:00,708 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 18:45:00,708 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-26 18:45:00,710 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-26 18:45:00,710 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-26 18:45:00,711 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 72 transitions. [2018-06-26 18:45:00,711 INFO ]: Start accepts. Automaton has 19 states and 72 transitions. Word has length 6 [2018-06-26 18:45:00,711 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:00,711 INFO ]: Abstraction has 19 states and 72 transitions. [2018-06-26 18:45:00,711 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:45:00,711 INFO ]: Start isEmpty. Operand 19 states and 72 transitions. [2018-06-26 18:45:00,712 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:45:00,712 INFO ]: Found error trace [2018-06-26 18:45:00,712 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:45:00,712 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:00,712 INFO ]: Analyzing trace with hash 1166966672, now seen corresponding path program 1 times [2018-06-26 18:45:00,712 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:00,712 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:00,713 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:00,713 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:00,713 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:00,721 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:00,771 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:00,771 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:45:00,771 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-26 18:45:00,771 INFO ]: Interpolant automaton has 4 states [2018-06-26 18:45:00,771 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-26 18:45:00,771 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-26 18:45:00,772 INFO ]: Start difference. First operand 19 states and 72 transitions. Second operand 4 states. [2018-06-26 18:45:00,816 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:00,816 INFO ]: Finished difference Result 22 states and 84 transitions. [2018-06-26 18:45:00,817 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-26 18:45:00,817 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-26 18:45:00,817 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:00,818 INFO ]: With dead ends: 22 [2018-06-26 18:45:00,818 INFO ]: Without dead ends: 22 [2018-06-26 18:45:00,819 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 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 18:45:00,819 INFO ]: Start minimizeSevpa. Operand 22 states. [2018-06-26 18:45:00,824 INFO ]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-06-26 18:45:00,825 INFO ]: Start removeUnreachable. Operand 22 states. [2018-06-26 18:45:00,825 INFO ]: Finished removeUnreachable. Reduced from 22 states to 22 states and 84 transitions. [2018-06-26 18:45:00,826 INFO ]: Start accepts. Automaton has 22 states and 84 transitions. Word has length 6 [2018-06-26 18:45:00,826 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:00,826 INFO ]: Abstraction has 22 states and 84 transitions. [2018-06-26 18:45:00,826 INFO ]: Interpolant automaton has 4 states. [2018-06-26 18:45:00,826 INFO ]: Start isEmpty. Operand 22 states and 84 transitions. [2018-06-26 18:45:00,826 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-26 18:45:00,826 INFO ]: Found error trace [2018-06-26 18:45:00,826 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:45:00,826 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:00,826 INFO ]: Analyzing trace with hash 1742121110, now seen corresponding path program 1 times [2018-06-26 18:45:00,826 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:00,826 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:00,827 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:00,827 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:00,827 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:00,843 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:00,859 INFO ]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:00,860 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:45:00,860 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:45:00,860 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:45:00,860 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:45:00,860 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:45:00,860 INFO ]: Start difference. First operand 22 states and 84 transitions. Second operand 3 states. [2018-06-26 18:45:00,878 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:00,878 INFO ]: Finished difference Result 27 states and 98 transitions. [2018-06-26 18:45:00,878 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:45:00,878 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-26 18:45:00,878 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:00,879 INFO ]: With dead ends: 27 [2018-06-26 18:45:00,879 INFO ]: Without dead ends: 27 [2018-06-26 18:45:00,879 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 18:45:00,879 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-26 18:45:00,882 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 22. [2018-06-26 18:45:00,882 INFO ]: Start removeUnreachable. Operand 22 states. [2018-06-26 18:45:00,883 INFO ]: Finished removeUnreachable. Reduced from 22 states to 22 states and 79 transitions. [2018-06-26 18:45:00,883 INFO ]: Start accepts. Automaton has 22 states and 79 transitions. Word has length 7 [2018-06-26 18:45:00,883 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:00,883 INFO ]: Abstraction has 22 states and 79 transitions. [2018-06-26 18:45:00,883 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:45:00,883 INFO ]: Start isEmpty. Operand 22 states and 79 transitions. [2018-06-26 18:45:00,883 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-26 18:45:00,883 INFO ]: Found error trace [2018-06-26 18:45:00,883 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:45:00,883 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:00,884 INFO ]: Analyzing trace with hash 1756420790, now seen corresponding path program 2 times [2018-06-26 18:45:00,884 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:00,884 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:00,884 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:00,884 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:00,884 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:00,896 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:00,923 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:45:00,923 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:45:00,923 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:45:00,932 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-26 18:45:00,949 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-26 18:45:00,949 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:00,950 INFO ]: Computing forward predicates... [2018-06-26 18:45:00,988 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:01,007 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:45:01,008 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2018-06-26 18:45:01,008 INFO ]: Interpolant automaton has 7 states [2018-06-26 18:45:01,008 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-26 18:45:01,008 INFO ]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-26 18:45:01,008 INFO ]: Start difference. First operand 22 states and 79 transitions. Second operand 7 states. [2018-06-26 18:45:01,190 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:01,190 INFO ]: Finished difference Result 65 states and 258 transitions. [2018-06-26 18:45:01,190 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-26 18:45:01,190 INFO ]: Start accepts. Automaton has 7 states. Word has length 7 [2018-06-26 18:45:01,191 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:01,192 INFO ]: With dead ends: 65 [2018-06-26 18:45:01,192 INFO ]: Without dead ends: 65 [2018-06-26 18:45:01,192 INFO ]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2018-06-26 18:45:01,192 INFO ]: Start minimizeSevpa. Operand 65 states. [2018-06-26 18:45:01,198 INFO ]: Finished minimizeSevpa. Reduced states from 65 to 27. [2018-06-26 18:45:01,198 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-26 18:45:01,201 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 102 transitions. [2018-06-26 18:45:01,201 INFO ]: Start accepts. Automaton has 27 states and 102 transitions. Word has length 7 [2018-06-26 18:45:01,201 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:01,201 INFO ]: Abstraction has 27 states and 102 transitions. [2018-06-26 18:45:01,201 INFO ]: Interpolant automaton has 7 states. [2018-06-26 18:45:01,201 INFO ]: Start isEmpty. Operand 27 states and 102 transitions. [2018-06-26 18:45:01,202 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-26 18:45:01,202 INFO ]: Found error trace [2018-06-26 18:45:01,202 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:45:01,202 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:01,202 INFO ]: Analyzing trace with hash 1815526134, now seen corresponding path program 1 times [2018-06-26 18:45:01,202 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:01,202 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:01,203 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:01,203 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-26 18:45:01,203 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:01,212 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:01,235 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:01,235 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:45:01,235 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:45:01,240 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:01,257 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:01,258 INFO ]: Computing forward predicates... [2018-06-26 18:45:01,297 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:01,322 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:45:01,322 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-06-26 18:45:01,322 INFO ]: Interpolant automaton has 8 states [2018-06-26 18:45:01,322 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-26 18:45:01,322 INFO ]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-06-26 18:45:01,322 INFO ]: Start difference. First operand 27 states and 102 transitions. Second operand 8 states. [2018-06-26 18:45:01,504 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:01,504 INFO ]: Finished difference Result 58 states and 199 transitions. [2018-06-26 18:45:01,505 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-26 18:45:01,505 INFO ]: Start accepts. Automaton has 8 states. Word has length 7 [2018-06-26 18:45:01,505 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:01,506 INFO ]: With dead ends: 58 [2018-06-26 18:45:01,506 INFO ]: Without dead ends: 58 [2018-06-26 18:45:01,506 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2018-06-26 18:45:01,506 INFO ]: Start minimizeSevpa. Operand 58 states. [2018-06-26 18:45:01,511 INFO ]: Finished minimizeSevpa. Reduced states from 58 to 44. [2018-06-26 18:45:01,512 INFO ]: Start removeUnreachable. Operand 44 states. [2018-06-26 18:45:01,513 INFO ]: Finished removeUnreachable. Reduced from 44 states to 44 states and 148 transitions. [2018-06-26 18:45:01,513 INFO ]: Start accepts. Automaton has 44 states and 148 transitions. Word has length 7 [2018-06-26 18:45:01,513 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:01,513 INFO ]: Abstraction has 44 states and 148 transitions. [2018-06-26 18:45:01,513 INFO ]: Interpolant automaton has 8 states. [2018-06-26 18:45:01,513 INFO ]: Start isEmpty. Operand 44 states and 148 transitions. [2018-06-26 18:45:01,515 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-26 18:45:01,515 INFO ]: Found error trace [2018-06-26 18:45:01,515 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-06-26 18:45:01,515 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:45:01,516 INFO ]: Analyzing trace with hash 2021230927, now seen corresponding path program 1 times [2018-06-26 18:45:01,516 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:45:01,516 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:45:01,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:01,516 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:01,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:45:01,532 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:01,741 INFO ]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:45:01,741 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:45:01,741 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:45:01,755 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:45:01,766 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:45:01,768 INFO ]: Computing forward predicates... [2018-06-26 18:45:01,833 INFO ]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:45:01,857 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:45:01,857 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2018-06-26 18:45:01,858 INFO ]: Interpolant automaton has 9 states [2018-06-26 18:45:01,858 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-26 18:45:01,858 INFO ]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-06-26 18:45:01,858 INFO ]: Start difference. First operand 44 states and 148 transitions. Second operand 9 states. [2018-06-26 18:45:02,426 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:45:02,426 INFO ]: Finished difference Result 64 states and 204 transitions. [2018-06-26 18:45:02,426 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-26 18:45:02,426 INFO ]: Start accepts. Automaton has 9 states. Word has length 8 [2018-06-26 18:45:02,426 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:45:02,426 INFO ]: With dead ends: 64 [2018-06-26 18:45:02,426 INFO ]: Without dead ends: 0 [2018-06-26 18:45:02,426 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2018-06-26 18:45:02,426 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:45:02,426 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:45:02,426 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:45:02,426 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:45:02,426 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-06-26 18:45:02,426 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:45:02,426 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:45:02,426 INFO ]: Interpolant automaton has 9 states. [2018-06-26 18:45:02,426 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:45:02,426 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:45:02,428 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:45:02,429 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:45:02 BasicIcfg [2018-06-26 18:45:02,430 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:45:02,430 INFO ]: Toolchain (without parser) took 4750.50 ms. Allocated memory was 309.9 MB in the beginning and 338.7 MB in the end (delta: 28.8 MB). Free memory was 267.1 MB in the beginning and 280.0 MB in the end (delta: -12.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 3.6 GB. [2018-06-26 18:45:02,431 INFO ]: SmtParser took 0.04 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:45:02,431 INFO ]: ChcToBoogie took 56.15 ms. Allocated memory is still 309.9 MB. Free memory was 266.1 MB in the beginning and 264.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:45:02,432 INFO ]: Boogie Preprocessor took 33.19 ms. Allocated memory is still 309.9 MB. Free memory was 264.1 MB in the beginning and 263.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-26 18:45:02,433 INFO ]: RCFGBuilder took 233.16 ms. Allocated memory is still 309.9 MB. Free memory was 263.1 MB in the beginning and 256.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 3.6 GB. [2018-06-26 18:45:02,433 INFO ]: BlockEncodingV2 took 133.65 ms. Allocated memory is still 309.9 MB. Free memory was 256.0 MB in the beginning and 252.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:45:02,434 INFO ]: TraceAbstraction took 4279.90 ms. Allocated memory was 309.9 MB in the beginning and 338.7 MB in the end (delta: 28.8 MB). Free memory was 252.0 MB in the beginning and 280.0 MB in the end (delta: -28.0 MB). Peak memory consumption was 856.1 kB. Max. memory is 3.6 GB. [2018-06-26 18:45:02,439 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, 13 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.04 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 56.15 ms. Allocated memory is still 309.9 MB. Free memory was 266.1 MB in the beginning and 264.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 33.19 ms. Allocated memory is still 309.9 MB. Free memory was 264.1 MB in the beginning and 263.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 233.16 ms. Allocated memory is still 309.9 MB. Free memory was 263.1 MB in the beginning and 256.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 133.65 ms. Allocated memory is still 309.9 MB. Free memory was 256.0 MB in the beginning and 252.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 4279.90 ms. Allocated memory was 309.9 MB in the beginning and 338.7 MB in the end (delta: 28.8 MB). Free memory was 252.0 MB in the beginning and 280.0 MB in the end (delta: -28.0 MB). Peak memory consumption was 856.1 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, 4.2s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 81 SDtfs, 2 SDslu, 60 SDs, 0 SdLazy, 391 SolverSat, 180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=9, 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, 10 MinimizatonAttempts, 68 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 1984 SizeOfPredicates, 17 NumberOfNonLiveVariables, 378 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 11/35 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__break_single.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-45-02-456.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/loop__break_single.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-45-02-456.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/loop__break_single.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-45-02-456.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/loop__break_single.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-45-02-456.csv Received shutdown request...