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/vmt-chc-benchmarks/ctigar/seesaw.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 01:22:08,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 01:22:08,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 01:22:08,517 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 01:22:08,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 01:22:08,520 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 01:22:08,521 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 01:22:08,523 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 01:22:08,525 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 01:22:08,525 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 01:22:08,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 01:22:08,528 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 01:22:08,529 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 01:22:08,530 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 01:22:08,530 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 01:22:08,533 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 01:22:08,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 01:22:08,544 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 01:22:08,545 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 01:22:08,546 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 01:22:08,547 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 01:22:08,553 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 01:22:08,553 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 01:22:08,553 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 01:22:08,554 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 01:22:08,555 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 01:22:08,556 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 01:22:08,556 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 01:22:08,560 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 01:22:08,560 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 01:22:08,560 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 01:22:08,561 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 01:22:08,561 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 01:22:08,562 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 01:22:08,562 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 01:22:08,563 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 01:22:08,585 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 01:22:08,585 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 01:22:08,585 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 01:22:08,586 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 01:22:08,586 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 01:22:08,587 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 01:22:08,587 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 01:22:08,587 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 01:22:08,587 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 01:22:08,587 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 01:22:08,587 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 01:22:08,588 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 01:22:08,589 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 01:22:08,589 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 01:22:08,589 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 01:22:08,589 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 01:22:08,589 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 01:22:08,590 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 01:22:08,590 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 01:22:08,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 01:22:08,590 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 01:22:08,591 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 01:22:08,593 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 01:22:08,636 INFO ]: Repository-Root is: /tmp [2018-06-25 01:22:08,645 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 01:22:08,648 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 01:22:08,649 INFO ]: Initializing SmtParser... [2018-06-25 01:22:08,650 INFO ]: SmtParser initialized [2018-06-25 01:22:08,650 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/seesaw.c.smt2 [2018-06-25 01:22:08,651 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 [2018-06-25 01:22:08,740 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/seesaw.c.smt2 unknown [2018-06-25 01:22:09,042 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/seesaw.c.smt2 [2018-06-25 01:22:09,047 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 01:22:09,053 INFO ]: Walking toolchain with 5 elements. [2018-06-25 01:22:09,054 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 01:22:09,054 INFO ]: Initializing ChcToBoogie... [2018-06-25 01:22:09,054 INFO ]: ChcToBoogie initialized [2018-06-25 01:22:09,057 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 01:22:09" (1/1) ... [2018-06-25 01:22:09,111 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09 Unit [2018-06-25 01:22:09,111 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 01:22:09,112 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 01:22:09,112 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 01:22:09,112 INFO ]: Boogie Preprocessor initialized [2018-06-25 01:22:09,132 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09" (1/1) ... [2018-06-25 01:22:09,132 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09" (1/1) ... [2018-06-25 01:22:09,141 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09" (1/1) ... [2018-06-25 01:22:09,142 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09" (1/1) ... [2018-06-25 01:22:09,159 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09" (1/1) ... [2018-06-25 01:22:09,160 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09" (1/1) ... [2018-06-25 01:22:09,170 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09" (1/1) ... [2018-06-25 01:22:09,173 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 01:22:09,173 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 01:22:09,173 INFO ]: Initializing RCFGBuilder... [2018-06-25 01:22:09,173 INFO ]: RCFGBuilder initialized [2018-06-25 01:22:09,174 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09" (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) [2018-06-25 01:22:09,193 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 01:22:09,193 INFO ]: Found specification of procedure gotoProc [2018-06-25 01:22:09,193 INFO ]: Found implementation of procedure gotoProc [2018-06-25 01:22:09,193 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 01:22:09,193 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 01:22:09,193 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 [2018-06-25 01:22:09,405 INFO ]: Using library mode [2018-06-25 01:22:09,405 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:22:09 BoogieIcfgContainer [2018-06-25 01:22:09,405 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 01:22:09,406 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-25 01:22:09,406 INFO ]: Initializing BlockEncodingV2... [2018-06-25 01:22:09,407 INFO ]: BlockEncodingV2 initialized [2018-06-25 01:22:09,407 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:22:09" (1/1) ... [2018-06-25 01:22:09,422 INFO ]: Initial Icfg 10 locations, 10 edges [2018-06-25 01:22:09,424 INFO ]: Using Remove infeasible edges [2018-06-25 01:22:09,424 INFO ]: Using Maximize final states [2018-06-25 01:22:09,425 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-25 01:22:09,425 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-25 01:22:09,427 INFO ]: Using Remove sink states [2018-06-25 01:22:09,427 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-25 01:22:09,428 INFO ]: Using Use SBE [2018-06-25 01:22:09,433 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:22:09,475 WARN ]: aborting because of expected exponential blowup for input size 60 [2018-06-25 01:22:09,483 WARN ]: aborting because of expected exponential blowup for input size 60 [2018-06-25 01:22:09,483 INFO ]: SBE split 1 edges [2018-06-25 01:22:09,490 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-25 01:22:09,492 INFO ]: 0 new accepting states [2018-06-25 01:22:09,560 INFO ]: Removed 5 edges and 2 locations by large block encoding [2018-06-25 01:22:09,562 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 01:22:09,564 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-25 01:22:09,564 INFO ]: 0 new accepting states [2018-06-25 01:22:09,564 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-25 01:22:09,564 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 01:22:09,564 INFO ]: Encoded RCFG 6 locations, 7 edges [2018-06-25 01:22:09,565 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 01:22:09 BasicIcfg [2018-06-25 01:22:09,565 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-25 01:22:09,566 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 01:22:09,566 INFO ]: Initializing TraceAbstraction... [2018-06-25 01:22:09,569 INFO ]: TraceAbstraction initialized [2018-06-25 01:22:09,569 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 01:22:09" (1/4) ... [2018-06-25 01:22:09,570 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e568abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 01:22:09, skipping insertion in model container [2018-06-25 01:22:09,570 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:22:09" (2/4) ... [2018-06-25 01:22:09,570 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e568abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 01:22:09, skipping insertion in model container [2018-06-25 01:22:09,570 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:22:09" (3/4) ... [2018-06-25 01:22:09,570 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e568abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 01:22:09, skipping insertion in model container [2018-06-25 01:22:09,570 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 01:22:09" (4/4) ... [2018-06-25 01:22:09,572 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-25 01:22:09,587 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 01:22:09,604 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 01:22:09,675 INFO ]: Using default assertion order modulation [2018-06-25 01:22:09,676 INFO ]: Interprodecural is true [2018-06-25 01:22:09,676 INFO ]: Hoare is false [2018-06-25 01:22:09,676 INFO ]: Compute interpolants for FPandBP [2018-06-25 01:22:09,676 INFO ]: Backedges is TWOTRACK [2018-06-25 01:22:09,676 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 01:22:09,676 INFO ]: Difference is false [2018-06-25 01:22:09,676 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 01:22:09,676 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 01:22:09,697 INFO ]: Start isEmpty. Operand 6 states. [2018-06-25 01:22:09,709 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 01:22:09,709 INFO ]: Found error trace [2018-06-25 01:22:09,710 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 01:22:09,710 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:22:09,715 INFO ]: Analyzing trace with hash 35465027, now seen corresponding path program 1 times [2018-06-25 01:22:09,716 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:22:09,717 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:22:09,754 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:09,754 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:22:09,754 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:09,783 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:22:09,831 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:22:09,832 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 01:22:09,832 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 01:22:09,833 INFO ]: Interpolant automaton has 3 states [2018-06-25 01:22:09,843 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 01:22:09,843 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 01:22:09,846 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-25 01:22:09,928 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:22:09,928 INFO ]: Finished difference Result 7 states and 8 transitions. [2018-06-25 01:22:09,929 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 01:22:09,930 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 01:22:09,931 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:22:09,943 INFO ]: With dead ends: 7 [2018-06-25 01:22:09,943 INFO ]: Without dead ends: 7 [2018-06-25 01:22:09,945 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 [2018-06-25 01:22:09,963 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-25 01:22:09,977 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-25 01:22:09,979 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-25 01:22:09,979 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-06-25 01:22:09,980 INFO ]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2018-06-25 01:22:09,981 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:22:09,981 INFO ]: Abstraction has 7 states and 8 transitions. [2018-06-25 01:22:09,981 INFO ]: Interpolant automaton has 3 states. [2018-06-25 01:22:09,981 INFO ]: Start isEmpty. Operand 7 states and 8 transitions. [2018-06-25 01:22:09,981 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-25 01:22:09,981 INFO ]: Found error trace [2018-06-25 01:22:09,981 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-25 01:22:09,981 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:22:09,981 INFO ]: Analyzing trace with hash 1099063309, now seen corresponding path program 1 times [2018-06-25 01:22:09,981 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:22:09,981 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:22:09,982 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:09,982 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:22:09,982 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:10,040 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:22:10,246 WARN ]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-25 01:22:10,247 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:22:10,247 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:22:10,247 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) [2018-06-25 01:22:10,260 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 01:22:10,324 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:22:10,333 INFO ]: Computing forward predicates... [2018-06-25 01:22:12,697 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:22:12,731 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:22:12,732 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-25 01:22:12,732 INFO ]: Interpolant automaton has 4 states [2018-06-25 01:22:12,732 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 01:22:12,732 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 01:22:12,732 INFO ]: Start difference. First operand 7 states and 8 transitions. Second operand 4 states. [2018-06-25 01:22:12,829 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:22:12,829 INFO ]: Finished difference Result 8 states and 9 transitions. [2018-06-25 01:22:12,842 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 01:22:12,842 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-25 01:22:12,843 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:22:12,843 INFO ]: With dead ends: 8 [2018-06-25 01:22:12,843 INFO ]: Without dead ends: 8 [2018-06-25 01:22:12,844 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 01:22:12,844 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-25 01:22:12,845 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-06-25 01:22:12,845 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-25 01:22:12,845 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-06-25 01:22:12,845 INFO ]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2018-06-25 01:22:12,845 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:22:12,845 INFO ]: Abstraction has 8 states and 9 transitions. [2018-06-25 01:22:12,845 INFO ]: Interpolant automaton has 4 states. [2018-06-25 01:22:12,845 INFO ]: Start isEmpty. Operand 8 states and 9 transitions. [2018-06-25 01:22:12,845 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 01:22:12,845 INFO ]: Found error trace [2018-06-25 01:22:12,845 INFO ]: trace histogram [2, 1, 1, 1, 1, 1] [2018-06-25 01:22:12,846 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:22:12,846 INFO ]: Analyzing trace with hash -289128317, now seen corresponding path program 2 times [2018-06-25 01:22:12,846 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:22:12,846 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:22:12,846 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:12,846 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:22:12,846 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:12,933 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:22:13,099 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:22:13,099 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:22:13,099 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 [2018-06-25 01:22:13,106 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 01:22:13,158 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 01:22:13,158 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:22:13,161 INFO ]: Computing forward predicates... [2018-06-25 01:22:18,663 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:22:18,683 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:22:18,683 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-25 01:22:18,683 INFO ]: Interpolant automaton has 6 states [2018-06-25 01:22:18,683 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 01:22:18,683 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 01:22:18,683 INFO ]: Start difference. First operand 8 states and 9 transitions. Second operand 6 states. [2018-06-25 01:22:18,739 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:22:18,739 INFO ]: Finished difference Result 9 states and 10 transitions. [2018-06-25 01:22:18,739 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 01:22:18,739 INFO ]: Start accepts. Automaton has 6 states. Word has length 7 [2018-06-25 01:22:18,739 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:22:18,739 INFO ]: With dead ends: 9 [2018-06-25 01:22:18,739 INFO ]: Without dead ends: 9 [2018-06-25 01:22:18,740 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2018-06-25 01:22:18,740 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 01:22:18,741 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 01:22:18,741 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 01:22:18,741 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-06-25 01:22:18,741 INFO ]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2018-06-25 01:22:18,741 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:22:18,741 INFO ]: Abstraction has 9 states and 10 transitions. [2018-06-25 01:22:18,741 INFO ]: Interpolant automaton has 6 states. [2018-06-25 01:22:18,741 INFO ]: Start isEmpty. Operand 9 states and 10 transitions. [2018-06-25 01:22:18,741 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 01:22:18,741 INFO ]: Found error trace [2018-06-25 01:22:18,741 INFO ]: trace histogram [3, 1, 1, 1, 1, 1] [2018-06-25 01:22:18,741 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:22:18,741 INFO ]: Analyzing trace with hash -373395763, now seen corresponding path program 3 times [2018-06-25 01:22:18,742 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:22:18,742 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:22:18,742 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:18,742 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 01:22:18,742 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:18,806 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:22:18,986 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:22:18,986 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:22:18,986 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 [2018-06-25 01:22:18,992 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 01:22:19,073 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-25 01:22:19,073 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:22:19,076 INFO ]: Computing forward predicates... [2018-06-25 01:22:43,497 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:22:47,408 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:22:47,429 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:22:47,429 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-06-25 01:22:47,429 INFO ]: Interpolant automaton has 7 states [2018-06-25 01:22:47,429 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-25 01:22:47,429 INFO ]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-06-25 01:22:47,430 INFO ]: Start difference. First operand 9 states and 10 transitions. Second operand 7 states. [2018-06-25 01:22:47,536 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:22:47,536 INFO ]: Finished difference Result 11 states and 12 transitions. [2018-06-25 01:22:47,536 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-25 01:22:47,536 INFO ]: Start accepts. Automaton has 7 states. Word has length 8 [2018-06-25 01:22:47,537 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:22:47,537 INFO ]: With dead ends: 11 [2018-06-25 01:22:47,537 INFO ]: Without dead ends: 11 [2018-06-25 01:22:47,537 INFO ]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-06-25 01:22:47,537 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 01:22:47,538 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 10. [2018-06-25 01:22:47,538 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 01:22:47,539 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-06-25 01:22:47,539 INFO ]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 8 [2018-06-25 01:22:47,539 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:22:47,539 INFO ]: Abstraction has 10 states and 11 transitions. [2018-06-25 01:22:47,539 INFO ]: Interpolant automaton has 7 states. [2018-06-25 01:22:47,539 INFO ]: Start isEmpty. Operand 10 states and 11 transitions. [2018-06-25 01:22:47,539 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 01:22:47,539 INFO ]: Found error trace [2018-06-25 01:22:47,539 INFO ]: trace histogram [4, 1, 1, 1, 1, 1] [2018-06-25 01:22:47,539 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:22:47,540 INFO ]: Analyzing trace with hash 1309280707, now seen corresponding path program 4 times [2018-06-25 01:22:47,540 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:22:47,540 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:22:47,540 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:47,540 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 01:22:47,540 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:22:47,628 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:22:48,003 WARN ]: Spent 158.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2018-06-25 01:22:48,224 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:22:48,224 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:22:48,224 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 [2018-06-25 01:22:48,232 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-25 01:22:48,277 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-25 01:22:48,277 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:22:48,281 INFO ]: Computing forward predicates... [2018-06-25 01:22:48,707 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:23:07,867 WARN ]: Spent 1.27 s on a formula simplification. DAG size of input: 254 DAG size of output: 22 Received shutdown request... [2018-06-25 01:23:15,049 INFO ]: Timeout while computing interpolants [2018-06-25 01:23:15,250 WARN ]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 01:23:15,250 WARN ]: Verification canceled [2018-06-25 01:23:15,251 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-25 01:23:15,252 WARN ]: Timeout [2018-06-25 01:23:15,252 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 01:23:15 BasicIcfg [2018-06-25 01:23:15,252 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 01:23:15,253 INFO ]: Toolchain (without parser) took 66205.70 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 250.4 MB in the beginning and 178.3 MB in the end (delta: 72.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 01:23:15,255 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 303.0 MB. Free memory is still 266.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 01:23:15,255 INFO ]: ChcToBoogie took 57.76 ms. Allocated memory is still 303.0 MB. Free memory was 250.4 MB in the beginning and 248.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:23:15,256 INFO ]: Boogie Preprocessor took 61.25 ms. Allocated memory is still 303.0 MB. Free memory was 248.4 MB in the beginning and 246.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:23:15,256 INFO ]: RCFGBuilder took 232.18 ms. Allocated memory is still 303.0 MB. Free memory was 246.4 MB in the beginning and 234.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 3.6 GB. [2018-06-25 01:23:15,257 INFO ]: BlockEncodingV2 took 159.12 ms. Allocated memory is still 303.0 MB. Free memory was 234.2 MB in the beginning and 227.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:23:15,257 INFO ]: TraceAbstraction took 65686.52 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 227.3 MB in the beginning and 178.3 MB in the end (delta: 49.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 01:23:15,261 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 10 edges - StatisticsResult: Encoded RCFG 6 locations, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 303.0 MB. Free memory is still 266.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 57.76 ms. Allocated memory is still 303.0 MB. Free memory was 250.4 MB in the beginning and 248.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 61.25 ms. Allocated memory is still 303.0 MB. Free memory was 248.4 MB in the beginning and 246.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 232.18 ms. Allocated memory is still 303.0 MB. Free memory was 246.4 MB in the beginning and 234.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 159.12 ms. Allocated memory is still 303.0 MB. Free memory was 234.2 MB in the beginning and 227.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 65686.52 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 227.3 MB in the beginning and 178.3 MB in the end (delta: 49.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was analyzing trace of length 10 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while XnfDer was eliminating 4241 quantified variables from 14 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 6 locations, 1 error locations. TIMEOUT Result, 65.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 24 SDs, 0 SdLazy, 22 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=4, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 36.8s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 SizeOfPredicates, 18 NumberOfNonLiveVariables, 510 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/seesaw.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-25_01-23-15-280.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/seesaw.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-25_01-23-15-280.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/seesaw.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-25_01-23-15-280.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/seesaw.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_01-23-15-280.csv Completed graceful shutdown