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/hopv/lia/mochi/recursive.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:26:26,485 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:26:26,487 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:26:26,500 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:26:26,501 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:26:26,502 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:26:26,503 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:26:26,505 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:26:26,506 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:26:26,507 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:26:26,509 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:26:26,509 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:26:26,510 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:26:26,511 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:26:26,512 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:26:26,514 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:26:26,515 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:26:26,524 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:26:26,526 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:26:26,527 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:26:26,528 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:26:26,529 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:26:26,534 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:26:26,535 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:26:26,535 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:26:26,535 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:26:26,536 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:26:26,539 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:26:26,540 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:26:26,540 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:26:26,541 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:26:26,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:26:26,545 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:26:26,545 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:26:26,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:26:26,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:26:26,547 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:26:26,568 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:26:26,568 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:26:26,568 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:26:26,568 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:26:26,569 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:26:26,569 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:26:26,570 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:26:26,570 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:26:26,571 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:26:26,571 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:26:26,571 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:26:26,571 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:26:26,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:26:26,571 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:26:26,572 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:26:26,572 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:26:26,572 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:26:26,572 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:26:26,572 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:26:26,573 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:26:26,573 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:26:26,575 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:26:26,576 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:26:26,628 INFO ]: Repository-Root is: /tmp [2018-06-26 18:26:26,642 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:26:26,647 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:26:26,648 INFO ]: Initializing SmtParser... [2018-06-26 18:26:26,648 INFO ]: SmtParser initialized [2018-06-26 18:26:26,649 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/recursive.smt2 [2018-06-26 18:26:26,650 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 18:26:26,733 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/recursive.smt2 unknown [2018-06-26 18:26:26,885 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/recursive.smt2 [2018-06-26 18:26:26,889 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:26:26,896 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:26:26,896 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:26:26,896 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:26:26,896 INFO ]: ChcToBoogie initialized [2018-06-26 18:26:26,900 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:26:26" (1/1) ... [2018-06-26 18:26:26,953 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26 Unit [2018-06-26 18:26:26,953 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:26:26,954 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:26:26,954 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:26:26,954 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:26:26,977 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26" (1/1) ... [2018-06-26 18:26:26,977 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26" (1/1) ... [2018-06-26 18:26:26,982 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26" (1/1) ... [2018-06-26 18:26:26,982 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26" (1/1) ... [2018-06-26 18:26:26,985 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26" (1/1) ... [2018-06-26 18:26:26,987 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26" (1/1) ... [2018-06-26 18:26:26,988 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26" (1/1) ... [2018-06-26 18:26:26,990 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:26:26,990 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:26:26,990 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:26:26,990 INFO ]: RCFGBuilder initialized [2018-06-26 18:26:26,992 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26" (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 18:26:27,007 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:26:27,008 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:26:27,008 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:26:27,008 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:26:27,008 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:26:27,008 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 18:26:27,277 INFO ]: Using library mode [2018-06-26 18:26:27,277 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:26:27 BoogieIcfgContainer [2018-06-26 18:26:27,277 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:26:27,277 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:26:27,277 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:26:27,288 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:26:27,289 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:26:27" (1/1) ... [2018-06-26 18:26:27,306 INFO ]: Initial Icfg 17 locations, 22 edges [2018-06-26 18:26:27,308 INFO ]: Using Remove infeasible edges [2018-06-26 18:26:27,309 INFO ]: Using Maximize final states [2018-06-26 18:26:27,309 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:26:27,309 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:26:27,311 INFO ]: Using Remove sink states [2018-06-26 18:26:27,312 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:26:27,312 INFO ]: Using Use SBE [2018-06-26 18:26:27,318 INFO ]: SBE split 0 edges [2018-06-26 18:26:27,326 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-26 18:26:27,328 INFO ]: 0 new accepting states [2018-06-26 18:26:27,430 INFO ]: Removed 14 edges and 5 locations by large block encoding [2018-06-26 18:26:27,432 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:26:27,434 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:26:27,434 INFO ]: 0 new accepting states [2018-06-26 18:26:27,434 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:26:27,435 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:26:27,435 INFO ]: Encoded RCFG 10 locations, 15 edges [2018-06-26 18:26:27,435 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:26:27 BasicIcfg [2018-06-26 18:26:27,435 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:26:27,436 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:26:27,436 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:26:27,439 INFO ]: TraceAbstraction initialized [2018-06-26 18:26:27,439 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:26:26" (1/4) ... [2018-06-26 18:26:27,440 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609a5f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:26:27, skipping insertion in model container [2018-06-26 18:26:27,440 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:26" (2/4) ... [2018-06-26 18:26:27,440 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609a5f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:26:27, skipping insertion in model container [2018-06-26 18:26:27,441 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:26:27" (3/4) ... [2018-06-26 18:26:27,441 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609a5f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:26:27, skipping insertion in model container [2018-06-26 18:26:27,441 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:26:27" (4/4) ... [2018-06-26 18:26:27,443 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:26:27,453 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:26:27,470 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:26:27,522 INFO ]: Using default assertion order modulation [2018-06-26 18:26:27,522 INFO ]: Interprodecural is true [2018-06-26 18:26:27,522 INFO ]: Hoare is false [2018-06-26 18:26:27,522 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:26:27,522 INFO ]: Backedges is TWOTRACK [2018-06-26 18:26:27,522 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:26:27,522 INFO ]: Difference is false [2018-06-26 18:26:27,522 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:26:27,523 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:26:27,535 INFO ]: Start isEmpty. Operand 10 states. [2018-06-26 18:26:27,559 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:26:27,559 INFO ]: Found error trace [2018-06-26 18:26:27,560 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:26:27,560 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:26:27,565 INFO ]: Analyzing trace with hash 33992167, now seen corresponding path program 1 times [2018-06-26 18:26:27,567 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:26:27,568 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:26:27,612 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:27,612 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:27,612 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:27,647 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:27,706 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:26:27,708 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:26:27,708 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:26:27,710 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:26:27,721 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:26:27,721 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:26:27,724 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-26 18:26:27,859 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:26:27,859 INFO ]: Finished difference Result 17 states and 27 transitions. [2018-06-26 18:26:27,860 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:26:27,860 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:26:27,861 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:26:27,868 INFO ]: With dead ends: 17 [2018-06-26 18:26:27,868 INFO ]: Without dead ends: 17 [2018-06-26 18:26:27,869 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 18:26:27,881 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-26 18:26:27,912 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-26 18:26:27,914 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-26 18:26:27,915 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2018-06-26 18:26:27,916 INFO ]: Start accepts. Automaton has 17 states and 27 transitions. Word has length 5 [2018-06-26 18:26:27,919 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:26:27,919 INFO ]: Abstraction has 17 states and 27 transitions. [2018-06-26 18:26:27,919 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:26:27,919 INFO ]: Start isEmpty. Operand 17 states and 27 transitions. [2018-06-26 18:26:27,921 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:26:27,921 INFO ]: Found error trace [2018-06-26 18:26:27,921 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:26:27,921 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:26:27,921 INFO ]: Analyzing trace with hash 34141122, now seen corresponding path program 1 times [2018-06-26 18:26:27,921 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:26:27,921 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:26:27,923 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:27,923 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:27,923 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:27,937 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:27,969 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:26:27,969 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:26:27,969 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:26:27,970 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:26:27,970 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:26:27,970 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:26:27,971 INFO ]: Start difference. First operand 17 states and 27 transitions. Second operand 3 states. [2018-06-26 18:26:28,010 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:26:28,010 INFO ]: Finished difference Result 23 states and 35 transitions. [2018-06-26 18:26:28,011 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:26:28,011 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:26:28,011 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:26:28,011 INFO ]: With dead ends: 23 [2018-06-26 18:26:28,011 INFO ]: Without dead ends: 23 [2018-06-26 18:26:28,012 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 18:26:28,012 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-26 18:26:28,017 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-06-26 18:26:28,018 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-26 18:26:28,019 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 29 transitions. [2018-06-26 18:26:28,019 INFO ]: Start accepts. Automaton has 19 states and 29 transitions. Word has length 5 [2018-06-26 18:26:28,019 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:26:28,019 INFO ]: Abstraction has 19 states and 29 transitions. [2018-06-26 18:26:28,019 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:26:28,019 INFO ]: Start isEmpty. Operand 19 states and 29 transitions. [2018-06-26 18:26:28,020 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-26 18:26:28,020 INFO ]: Found error trace [2018-06-26 18:26:28,020 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:26:28,020 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:26:28,021 INFO ]: Analyzing trace with hash -869711767, now seen corresponding path program 1 times [2018-06-26 18:26:28,021 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:26:28,021 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:26:28,021 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:28,021 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:28,021 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:28,035 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:28,127 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:26:28,127 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:26:28,127 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-26 18:26:28,127 INFO ]: Interpolant automaton has 5 states [2018-06-26 18:26:28,127 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-26 18:26:28,128 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-26 18:26:28,128 INFO ]: Start difference. First operand 19 states and 29 transitions. Second operand 5 states. [2018-06-26 18:26:28,400 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:26:28,400 INFO ]: Finished difference Result 30 states and 53 transitions. [2018-06-26 18:26:28,401 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-26 18:26:28,401 INFO ]: Start accepts. Automaton has 5 states. Word has length 10 [2018-06-26 18:26:28,401 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:26:28,404 INFO ]: With dead ends: 30 [2018-06-26 18:26:28,404 INFO ]: Without dead ends: 30 [2018-06-26 18:26:28,404 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-26 18:26:28,404 INFO ]: Start minimizeSevpa. Operand 30 states. [2018-06-26 18:26:28,415 INFO ]: Finished minimizeSevpa. Reduced states from 30 to 26. [2018-06-26 18:26:28,415 INFO ]: Start removeUnreachable. Operand 26 states. [2018-06-26 18:26:28,417 INFO ]: Finished removeUnreachable. Reduced from 26 states to 26 states and 45 transitions. [2018-06-26 18:26:28,417 INFO ]: Start accepts. Automaton has 26 states and 45 transitions. Word has length 10 [2018-06-26 18:26:28,417 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:26:28,417 INFO ]: Abstraction has 26 states and 45 transitions. [2018-06-26 18:26:28,417 INFO ]: Interpolant automaton has 5 states. [2018-06-26 18:26:28,417 INFO ]: Start isEmpty. Operand 26 states and 45 transitions. [2018-06-26 18:26:28,419 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-26 18:26:28,419 INFO ]: Found error trace [2018-06-26 18:26:28,419 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:26:28,419 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:26:28,419 INFO ]: Analyzing trace with hash 1987471155, now seen corresponding path program 1 times [2018-06-26 18:26:28,419 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:26:28,419 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:26:28,420 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:28,420 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:28,420 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:28,436 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:28,520 INFO ]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:26:28,520 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:26:28,520 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 18:26:28,531 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:28,582 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:28,590 INFO ]: Computing forward predicates... [2018-06-26 18:26:29,030 INFO ]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:26:29,062 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:26:29,062 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-06-26 18:26:29,063 INFO ]: Interpolant automaton has 8 states [2018-06-26 18:26:29,063 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-26 18:26:29,063 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-26 18:26:29,063 INFO ]: Start difference. First operand 26 states and 45 transitions. Second operand 8 states. [2018-06-26 18:26:29,670 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:26:29,670 INFO ]: Finished difference Result 33 states and 58 transitions. [2018-06-26 18:26:29,672 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-26 18:26:29,672 INFO ]: Start accepts. Automaton has 8 states. Word has length 11 [2018-06-26 18:26:29,672 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:26:29,673 INFO ]: With dead ends: 33 [2018-06-26 18:26:29,673 INFO ]: Without dead ends: 33 [2018-06-26 18:26:29,674 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-06-26 18:26:29,674 INFO ]: Start minimizeSevpa. Operand 33 states. [2018-06-26 18:26:29,684 INFO ]: Finished minimizeSevpa. Reduced states from 33 to 28. [2018-06-26 18:26:29,684 INFO ]: Start removeUnreachable. Operand 28 states. [2018-06-26 18:26:29,688 INFO ]: Finished removeUnreachable. Reduced from 28 states to 28 states and 49 transitions. [2018-06-26 18:26:29,689 INFO ]: Start accepts. Automaton has 28 states and 49 transitions. Word has length 11 [2018-06-26 18:26:29,689 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:26:29,689 INFO ]: Abstraction has 28 states and 49 transitions. [2018-06-26 18:26:29,689 INFO ]: Interpolant automaton has 8 states. [2018-06-26 18:26:29,689 INFO ]: Start isEmpty. Operand 28 states and 49 transitions. [2018-06-26 18:26:29,694 INFO ]: Finished isEmpty. Found accepting run of length 17 [2018-06-26 18:26:29,694 INFO ]: Found error trace [2018-06-26 18:26:29,695 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:26:29,695 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:26:29,695 INFO ]: Analyzing trace with hash -867895335, now seen corresponding path program 1 times [2018-06-26 18:26:29,695 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:26:29,695 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:26:29,696 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:29,696 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:29,696 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:29,719 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:29,865 INFO ]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-26 18:26:29,865 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:26:29,865 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 18:26:29,875 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:29,905 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:29,907 INFO ]: Computing forward predicates... [2018-06-26 18:26:30,008 INFO ]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-26 18:26:30,034 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:26:30,034 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 8 [2018-06-26 18:26:30,034 INFO ]: Interpolant automaton has 8 states [2018-06-26 18:26:30,034 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-26 18:26:30,035 INFO ]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-06-26 18:26:30,035 INFO ]: Start difference. First operand 28 states and 49 transitions. Second operand 8 states. [2018-06-26 18:26:30,275 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:26:30,275 INFO ]: Finished difference Result 43 states and 90 transitions. [2018-06-26 18:26:30,275 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-26 18:26:30,275 INFO ]: Start accepts. Automaton has 8 states. Word has length 16 [2018-06-26 18:26:30,275 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:26:30,277 INFO ]: With dead ends: 43 [2018-06-26 18:26:30,277 INFO ]: Without dead ends: 43 [2018-06-26 18:26:30,277 INFO ]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-06-26 18:26:30,277 INFO ]: Start minimizeSevpa. Operand 43 states. [2018-06-26 18:26:30,287 INFO ]: Finished minimizeSevpa. Reduced states from 43 to 33. [2018-06-26 18:26:30,287 INFO ]: Start removeUnreachable. Operand 33 states. [2018-06-26 18:26:30,288 INFO ]: Finished removeUnreachable. Reduced from 33 states to 33 states and 63 transitions. [2018-06-26 18:26:30,288 INFO ]: Start accepts. Automaton has 33 states and 63 transitions. Word has length 16 [2018-06-26 18:26:30,289 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:26:30,289 INFO ]: Abstraction has 33 states and 63 transitions. [2018-06-26 18:26:30,289 INFO ]: Interpolant automaton has 8 states. [2018-06-26 18:26:30,289 INFO ]: Start isEmpty. Operand 33 states and 63 transitions. [2018-06-26 18:26:30,291 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-26 18:26:30,292 INFO ]: Found error trace [2018-06-26 18:26:30,292 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-06-26 18:26:30,292 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:26:30,292 INFO ]: Analyzing trace with hash -2099637371, now seen corresponding path program 1 times [2018-06-26 18:26:30,292 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:26:30,292 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:26:30,293 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:30,293 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:30,293 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:30,309 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:30,429 INFO ]: Checked inductivity of 11 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-26 18:26:30,429 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:26:30,429 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 18:26:30,438 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:30,454 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:30,455 INFO ]: Computing forward predicates... [2018-06-26 18:26:30,498 INFO ]: Checked inductivity of 11 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-26 18:26:30,517 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:26:30,517 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-26 18:26:30,517 INFO ]: Interpolant automaton has 8 states [2018-06-26 18:26:30,518 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-26 18:26:30,518 INFO ]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-06-26 18:26:30,518 INFO ]: Start difference. First operand 33 states and 63 transitions. Second operand 8 states. [2018-06-26 18:26:30,624 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:26:30,624 INFO ]: Finished difference Result 23 states and 40 transitions. [2018-06-26 18:26:30,624 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-26 18:26:30,624 INFO ]: Start accepts. Automaton has 8 states. Word has length 15 [2018-06-26 18:26:30,624 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:26:30,624 INFO ]: With dead ends: 23 [2018-06-26 18:26:30,624 INFO ]: Without dead ends: 0 [2018-06-26 18:26:30,625 INFO ]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-06-26 18:26:30,625 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:26:30,625 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:26:30,625 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:26:30,625 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:26:30,625 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-06-26 18:26:30,625 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:26:30,625 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:26:30,625 INFO ]: Interpolant automaton has 8 states. [2018-06-26 18:26:30,625 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:26:30,625 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:26:30,627 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:26:30,629 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:26:30 BasicIcfg [2018-06-26 18:26:30,629 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:26:30,630 INFO ]: Toolchain (without parser) took 3740.28 ms. Allocated memory was 306.7 MB in the beginning and 326.1 MB in the end (delta: 19.4 MB). Free memory was 263.1 MB in the beginning and 215.9 MB in the end (delta: 47.2 MB). Peak memory consumption was 66.6 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:30,632 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:26:30,632 INFO ]: ChcToBoogie took 57.36 ms. Allocated memory is still 306.7 MB. Free memory was 263.1 MB in the beginning and 261.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:30,633 INFO ]: Boogie Preprocessor took 35.40 ms. Allocated memory is still 306.7 MB. Free memory was 261.1 MB in the beginning and 259.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:30,633 INFO ]: RCFGBuilder took 286.91 ms. Allocated memory is still 306.7 MB. Free memory was 259.1 MB in the beginning and 251.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:30,634 INFO ]: BlockEncodingV2 took 157.91 ms. Allocated memory is still 306.7 MB. Free memory was 251.1 MB in the beginning and 247.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:30,634 INFO ]: TraceAbstraction took 3193.15 ms. Allocated memory was 306.7 MB in the beginning and 326.1 MB in the end (delta: 19.4 MB). Free memory was 247.1 MB in the beginning and 215.9 MB in the end (delta: 31.2 MB). Peak memory consumption was 50.6 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:30,638 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 17 locations, 22 edges - StatisticsResult: Encoded RCFG 10 locations, 15 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 57.36 ms. Allocated memory is still 306.7 MB. Free memory was 263.1 MB in the beginning and 261.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 35.40 ms. Allocated memory is still 306.7 MB. Free memory was 261.1 MB in the beginning and 259.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 286.91 ms. Allocated memory is still 306.7 MB. Free memory was 259.1 MB in the beginning and 251.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 157.91 ms. Allocated memory is still 306.7 MB. Free memory was 251.1 MB in the beginning and 247.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3193.15 ms. Allocated memory was 306.7 MB in the beginning and 326.1 MB in the end (delta: 19.4 MB). Free memory was 247.1 MB in the beginning and 215.9 MB in the end (delta: 31.2 MB). Peak memory consumption was 50.6 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 103 SDtfs, 40 SDslu, 170 SDs, 0 SdLazy, 325 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=5, 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, 6 MinimizatonAttempts, 23 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2855 SizeOfPredicates, 28 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 48/59 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/recursive.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-26-30-651.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/recursive.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-26-30-651.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/recursive.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-26-30-651.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/recursive.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-26-30-651.csv Received shutdown request...