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/svd4.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 01:32:53,435 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 01:32:53,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 01:32:53,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 01:32:53,449 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 01:32:53,450 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 01:32:53,451 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 01:32:53,455 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 01:32:53,457 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 01:32:53,457 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 01:32:53,459 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 01:32:53,460 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 01:32:53,460 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 01:32:53,461 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 01:32:53,462 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 01:32:53,465 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 01:32:53,466 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 01:32:53,468 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 01:32:53,481 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 01:32:53,482 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 01:32:53,483 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 01:32:53,485 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 01:32:53,485 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 01:32:53,485 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 01:32:53,486 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 01:32:53,487 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 01:32:53,488 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 01:32:53,488 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 01:32:53,489 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 01:32:53,489 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 01:32:53,490 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 01:32:53,491 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 01:32:53,491 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 01:32:53,492 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 01:32:53,492 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 01:32:53,492 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 01:32:53,506 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 01:32:53,506 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 01:32:53,506 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 01:32:53,506 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 01:32:53,508 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 01:32:53,508 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 01:32:53,508 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 01:32:53,508 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 01:32:53,509 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 01:32:53,509 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 01:32:53,509 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 01:32:53,509 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 01:32:53,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 01:32:53,510 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 01:32:53,510 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 01:32:53,510 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 01:32:53,510 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 01:32:53,510 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 01:32:53,511 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 01:32:53,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 01:32:53,511 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 01:32:53,512 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 01:32:53,512 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 01:32:53,558 INFO ]: Repository-Root is: /tmp [2018-06-25 01:32:53,570 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 01:32:53,574 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 01:32:53,575 INFO ]: Initializing SmtParser... [2018-06-25 01:32:53,575 INFO ]: SmtParser initialized [2018-06-25 01:32:53,576 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd4.c.smt2 [2018-06-25 01:32:53,577 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 01:32:53,667 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd4.c.smt2 unknown [2018-06-25 01:32:54,244 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd4.c.smt2 [2018-06-25 01:32:54,249 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 01:32:54,255 INFO ]: Walking toolchain with 5 elements. [2018-06-25 01:32:54,256 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 01:32:54,256 INFO ]: Initializing ChcToBoogie... [2018-06-25 01:32:54,256 INFO ]: ChcToBoogie initialized [2018-06-25 01:32:54,259 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 01:32:54" (1/1) ... [2018-06-25 01:32:54,341 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54 Unit [2018-06-25 01:32:54,341 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 01:32:54,342 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 01:32:54,342 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 01:32:54,342 INFO ]: Boogie Preprocessor initialized [2018-06-25 01:32:54,364 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54" (1/1) ... [2018-06-25 01:32:54,364 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54" (1/1) ... [2018-06-25 01:32:54,387 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54" (1/1) ... [2018-06-25 01:32:54,387 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54" (1/1) ... [2018-06-25 01:32:54,419 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54" (1/1) ... [2018-06-25 01:32:54,420 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54" (1/1) ... [2018-06-25 01:32:54,424 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54" (1/1) ... [2018-06-25 01:32:54,434 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 01:32:54,435 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 01:32:54,435 INFO ]: Initializing RCFGBuilder... [2018-06-25 01:32:54,435 INFO ]: RCFGBuilder initialized [2018-06-25 01:32:54,436 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54" (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 01:32:54,448 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 01:32:54,448 INFO ]: Found specification of procedure gotoProc [2018-06-25 01:32:54,448 INFO ]: Found implementation of procedure gotoProc [2018-06-25 01:32:54,448 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 01:32:54,448 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 01:32:54,448 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 01:32:54,918 INFO ]: Using library mode [2018-06-25 01:32:54,918 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:32:54 BoogieIcfgContainer [2018-06-25 01:32:54,918 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 01:32:54,919 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-25 01:32:54,919 INFO ]: Initializing BlockEncodingV2... [2018-06-25 01:32:54,920 INFO ]: BlockEncodingV2 initialized [2018-06-25 01:32:54,921 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:32:54" (1/1) ... [2018-06-25 01:32:54,940 INFO ]: Initial Icfg 10 locations, 10 edges [2018-06-25 01:32:54,941 INFO ]: Using Remove infeasible edges [2018-06-25 01:32:54,942 INFO ]: Using Maximize final states [2018-06-25 01:32:54,942 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-25 01:32:54,942 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-25 01:32:54,944 INFO ]: Using Remove sink states [2018-06-25 01:32:54,945 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-25 01:32:54,945 INFO ]: Using Use SBE [2018-06-25 01:32:54,956 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 01:32:55,122 WARN ]: Simplifying disjunction of 8704 conjuctions. This might take some time... [2018-06-25 01:33:07,013 INFO ]: Simplified to disjunction of 8704 conjuctions. [2018-06-25 01:33:07,154 WARN ]: aborting because of expected exponential blowup for input size 192 [2018-06-25 01:33:07,171 WARN ]: aborting because of expected exponential blowup for input size 192 [2018-06-25 01:33:07,171 INFO ]: SBE split 1 edges [2018-06-25 01:33:07,177 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-25 01:33:07,180 INFO ]: 0 new accepting states [2018-06-25 01:33:07,794 INFO ]: Removed 37 edges and 2 locations by large block encoding [2018-06-25 01:33:07,796 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 01:33:07,824 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-25 01:33:07,825 INFO ]: 0 new accepting states [2018-06-25 01:33:07,825 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-25 01:33:07,825 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 01:33:07,825 INFO ]: Encoded RCFG 6 locations, 39 edges [2018-06-25 01:33:07,826 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 01:33:07 BasicIcfg [2018-06-25 01:33:07,826 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-25 01:33:07,827 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 01:33:07,827 INFO ]: Initializing TraceAbstraction... [2018-06-25 01:33:07,830 INFO ]: TraceAbstraction initialized [2018-06-25 01:33:07,831 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 01:32:54" (1/4) ... [2018-06-25 01:33:07,832 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374fdb9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 01:33:07, skipping insertion in model container [2018-06-25 01:33:07,832 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:54" (2/4) ... [2018-06-25 01:33:07,832 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374fdb9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 01:33:07, skipping insertion in model container [2018-06-25 01:33:07,832 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:32:54" (3/4) ... [2018-06-25 01:33:07,832 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374fdb9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 01:33:07, skipping insertion in model container [2018-06-25 01:33:07,832 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 01:33:07" (4/4) ... [2018-06-25 01:33:07,834 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-25 01:33:07,843 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 01:33:07,854 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 01:33:07,894 INFO ]: Using default assertion order modulation [2018-06-25 01:33:07,894 INFO ]: Interprodecural is true [2018-06-25 01:33:07,894 INFO ]: Hoare is false [2018-06-25 01:33:07,894 INFO ]: Compute interpolants for FPandBP [2018-06-25 01:33:07,894 INFO ]: Backedges is TWOTRACK [2018-06-25 01:33:07,894 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 01:33:07,894 INFO ]: Difference is false [2018-06-25 01:33:07,894 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 01:33:07,894 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 01:33:07,907 INFO ]: Start isEmpty. Operand 6 states. [2018-06-25 01:33:07,917 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 01:33:07,917 INFO ]: Found error trace [2018-06-25 01:33:07,918 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 01:33:07,918 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:07,923 INFO ]: Analyzing trace with hash 37075663, now seen corresponding path program 1 times [2018-06-25 01:33:07,924 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:07,924 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:07,956 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:07,956 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:07,956 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:07,993 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:08,094 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:08,097 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 01:33:08,097 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 01:33:08,099 INFO ]: Interpolant automaton has 3 states [2018-06-25 01:33:08,114 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 01:33:08,114 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 01:33:08,117 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-25 01:33:08,490 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:33:08,490 INFO ]: Finished difference Result 7 states and 40 transitions. [2018-06-25 01:33:08,490 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 01:33:08,492 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 01:33:08,492 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:33:08,501 INFO ]: With dead ends: 7 [2018-06-25 01:33:08,502 INFO ]: Without dead ends: 7 [2018-06-25 01:33:08,504 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 01:33:08,521 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-25 01:33:08,539 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-25 01:33:08,540 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-25 01:33:08,540 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2018-06-25 01:33:08,542 INFO ]: Start accepts. Automaton has 7 states and 40 transitions. Word has length 5 [2018-06-25 01:33:08,543 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:33:08,543 INFO ]: Abstraction has 7 states and 40 transitions. [2018-06-25 01:33:08,543 INFO ]: Interpolant automaton has 3 states. [2018-06-25 01:33:08,543 INFO ]: Start isEmpty. Operand 7 states and 40 transitions. [2018-06-25 01:33:08,543 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 01:33:08,543 INFO ]: Found error trace [2018-06-25 01:33:08,543 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 01:33:08,543 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:08,543 INFO ]: Analyzing trace with hash 37105454, now seen corresponding path program 1 times [2018-06-25 01:33:08,543 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:08,543 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:08,544 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:08,544 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:08,544 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:08,550 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:08,607 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:08,607 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 01:33:08,607 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 01:33:08,609 INFO ]: Interpolant automaton has 3 states [2018-06-25 01:33:08,609 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 01:33:08,609 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 01:33:08,609 INFO ]: Start difference. First operand 7 states and 40 transitions. Second operand 3 states. [2018-06-25 01:33:09,021 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:33:09,021 INFO ]: Finished difference Result 9 states and 42 transitions. [2018-06-25 01:33:09,022 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 01:33:09,022 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 01:33:09,022 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:33:09,022 INFO ]: With dead ends: 9 [2018-06-25 01:33:09,022 INFO ]: Without dead ends: 9 [2018-06-25 01:33:09,023 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 01:33:09,023 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 01:33:09,025 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 7. [2018-06-25 01:33:09,025 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-25 01:33:09,026 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2018-06-25 01:33:09,026 INFO ]: Start accepts. Automaton has 7 states and 40 transitions. Word has length 5 [2018-06-25 01:33:09,026 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:33:09,026 INFO ]: Abstraction has 7 states and 40 transitions. [2018-06-25 01:33:09,026 INFO ]: Interpolant automaton has 3 states. [2018-06-25 01:33:09,026 INFO ]: Start isEmpty. Operand 7 states and 40 transitions. [2018-06-25 01:33:09,026 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 01:33:09,026 INFO ]: Found error trace [2018-06-25 01:33:09,026 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 01:33:09,027 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:09,027 INFO ]: Analyzing trace with hash 37135245, now seen corresponding path program 1 times [2018-06-25 01:33:09,027 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:09,027 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:09,027 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:09,027 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:09,027 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:09,033 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:09,087 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:09,087 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 01:33:09,087 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 01:33:09,087 INFO ]: Interpolant automaton has 3 states [2018-06-25 01:33:09,087 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 01:33:09,088 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 01:33:09,088 INFO ]: Start difference. First operand 7 states and 40 transitions. Second operand 3 states. [2018-06-25 01:33:09,309 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:33:09,310 INFO ]: Finished difference Result 9 states and 42 transitions. [2018-06-25 01:33:09,310 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 01:33:09,310 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 01:33:09,310 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:33:09,311 INFO ]: With dead ends: 9 [2018-06-25 01:33:09,311 INFO ]: Without dead ends: 9 [2018-06-25 01:33:09,311 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 01:33:09,311 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 01:33:09,313 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 7. [2018-06-25 01:33:09,313 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-25 01:33:09,313 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2018-06-25 01:33:09,314 INFO ]: Start accepts. Automaton has 7 states and 40 transitions. Word has length 5 [2018-06-25 01:33:09,314 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:33:09,314 INFO ]: Abstraction has 7 states and 40 transitions. [2018-06-25 01:33:09,314 INFO ]: Interpolant automaton has 3 states. [2018-06-25 01:33:09,314 INFO ]: Start isEmpty. Operand 7 states and 40 transitions. [2018-06-25 01:33:09,314 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 01:33:09,314 INFO ]: Found error trace [2018-06-25 01:33:09,314 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 01:33:09,314 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:09,314 INFO ]: Analyzing trace with hash 37194827, now seen corresponding path program 1 times [2018-06-25 01:33:09,314 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:09,314 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:09,315 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:09,315 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:09,315 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:09,324 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:09,362 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:09,362 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 01:33:09,362 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 01:33:09,362 INFO ]: Interpolant automaton has 3 states [2018-06-25 01:33:09,362 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 01:33:09,362 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 01:33:09,362 INFO ]: Start difference. First operand 7 states and 40 transitions. Second operand 3 states. [2018-06-25 01:33:09,431 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:33:09,431 INFO ]: Finished difference Result 9 states and 42 transitions. [2018-06-25 01:33:09,431 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 01:33:09,431 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 01:33:09,431 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:33:09,432 INFO ]: With dead ends: 9 [2018-06-25 01:33:09,432 INFO ]: Without dead ends: 9 [2018-06-25 01:33:09,432 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 01:33:09,432 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 01:33:09,434 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 7. [2018-06-25 01:33:09,434 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-25 01:33:09,435 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2018-06-25 01:33:09,435 INFO ]: Start accepts. Automaton has 7 states and 40 transitions. Word has length 5 [2018-06-25 01:33:09,435 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:33:09,435 INFO ]: Abstraction has 7 states and 40 transitions. [2018-06-25 01:33:09,435 INFO ]: Interpolant automaton has 3 states. [2018-06-25 01:33:09,435 INFO ]: Start isEmpty. Operand 7 states and 40 transitions. [2018-06-25 01:33:09,435 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 01:33:09,435 INFO ]: Found error trace [2018-06-25 01:33:09,435 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 01:33:09,435 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:09,435 INFO ]: Analyzing trace with hash 37254409, now seen corresponding path program 1 times [2018-06-25 01:33:09,435 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:09,436 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:09,436 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:09,436 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:09,436 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:09,442 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:09,457 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:09,457 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 01:33:09,457 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 01:33:09,457 INFO ]: Interpolant automaton has 3 states [2018-06-25 01:33:09,457 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 01:33:09,457 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 01:33:09,457 INFO ]: Start difference. First operand 7 states and 40 transitions. Second operand 3 states. [2018-06-25 01:33:09,517 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:33:09,517 INFO ]: Finished difference Result 9 states and 42 transitions. [2018-06-25 01:33:09,518 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 01:33:09,518 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 01:33:09,518 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:33:09,518 INFO ]: With dead ends: 9 [2018-06-25 01:33:09,518 INFO ]: Without dead ends: 9 [2018-06-25 01:33:09,518 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 01:33:09,518 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 01:33:09,520 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 7. [2018-06-25 01:33:09,520 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-25 01:33:09,520 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2018-06-25 01:33:09,520 INFO ]: Start accepts. Automaton has 7 states and 40 transitions. Word has length 5 [2018-06-25 01:33:09,521 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:33:09,521 INFO ]: Abstraction has 7 states and 40 transitions. [2018-06-25 01:33:09,521 INFO ]: Interpolant automaton has 3 states. [2018-06-25 01:33:09,521 INFO ]: Start isEmpty. Operand 7 states and 40 transitions. [2018-06-25 01:33:09,521 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-25 01:33:09,521 INFO ]: Found error trace [2018-06-25 01:33:09,521 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-25 01:33:09,521 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:09,521 INFO ]: Analyzing trace with hash 1147118114, now seen corresponding path program 1 times [2018-06-25 01:33:09,521 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:09,521 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:09,522 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:09,522 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:09,522 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:09,627 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:09,797 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:09,797 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:33:09,797 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 [2018-06-25 01:33:09,805 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:09,879 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:09,888 INFO ]: Computing forward predicates... [2018-06-25 01:33:12,537 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:12,558 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:33:12,558 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 01:33:12,558 INFO ]: Interpolant automaton has 5 states [2018-06-25 01:33:12,558 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 01:33:12,558 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 01:33:12,558 INFO ]: Start difference. First operand 7 states and 40 transitions. Second operand 5 states. [2018-06-25 01:33:12,756 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:33:12,756 INFO ]: Finished difference Result 11 states and 44 transitions. [2018-06-25 01:33:12,757 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-25 01:33:12,757 INFO ]: Start accepts. Automaton has 5 states. Word has length 6 [2018-06-25 01:33:12,757 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:33:12,757 INFO ]: With dead ends: 11 [2018-06-25 01:33:12,757 INFO ]: Without dead ends: 11 [2018-06-25 01:33:12,758 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-06-25 01:33:12,758 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 01:33:12,759 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 8. [2018-06-25 01:33:12,759 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-25 01:33:12,760 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 41 transitions. [2018-06-25 01:33:12,760 INFO ]: Start accepts. Automaton has 8 states and 41 transitions. Word has length 6 [2018-06-25 01:33:12,760 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:33:12,760 INFO ]: Abstraction has 8 states and 41 transitions. [2018-06-25 01:33:12,760 INFO ]: Interpolant automaton has 5 states. [2018-06-25 01:33:12,760 INFO ]: Start isEmpty. Operand 8 states and 41 transitions. [2018-06-25 01:33:12,760 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-25 01:33:12,760 INFO ]: Found error trace [2018-06-25 01:33:12,760 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-25 01:33:12,760 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:12,761 INFO ]: Analyzing trace with hash 1148041635, now seen corresponding path program 1 times [2018-06-25 01:33:12,761 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:12,761 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:12,762 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:12,762 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:12,762 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:12,817 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:13,203 WARN ]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-25 01:33:13,203 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:13,203 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:33:13,203 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) [2018-06-25 01:33:13,218 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 01:33:13,324 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:13,334 INFO ]: Computing forward predicates... [2018-06-25 01:33:14,747 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:14,766 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:33:14,766 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-25 01:33:14,767 INFO ]: Interpolant automaton has 4 states [2018-06-25 01:33:14,767 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 01:33:14,767 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 01:33:14,767 INFO ]: Start difference. First operand 8 states and 41 transitions. Second operand 4 states. [2018-06-25 01:33:14,848 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:33:14,848 INFO ]: Finished difference Result 12 states and 45 transitions. [2018-06-25 01:33:14,848 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 01:33:14,848 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-25 01:33:14,848 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:33:14,849 INFO ]: With dead ends: 12 [2018-06-25 01:33:14,849 INFO ]: Without dead ends: 12 [2018-06-25 01:33:14,849 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 01:33:14,849 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-25 01:33:14,850 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 8. [2018-06-25 01:33:14,850 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-25 01:33:14,851 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 41 transitions. [2018-06-25 01:33:14,851 INFO ]: Start accepts. Automaton has 8 states and 41 transitions. Word has length 6 [2018-06-25 01:33:14,851 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:33:14,851 INFO ]: Abstraction has 8 states and 41 transitions. [2018-06-25 01:33:14,851 INFO ]: Interpolant automaton has 4 states. [2018-06-25 01:33:14,851 INFO ]: Start isEmpty. Operand 8 states and 41 transitions. [2018-06-25 01:33:14,851 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-25 01:33:14,851 INFO ]: Found error trace [2018-06-25 01:33:14,851 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-25 01:33:14,851 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:14,852 INFO ]: Analyzing trace with hash 1158200366, now seen corresponding path program 1 times [2018-06-25 01:33:14,852 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:14,852 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:14,852 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:14,852 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:14,852 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:14,895 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:15,023 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:15,023 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:33:15,023 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 01:33:15,029 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:15,080 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:15,082 INFO ]: Computing forward predicates... [2018-06-25 01:33:15,819 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:15,855 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:15,867 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:21,373 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:21,393 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:33:21,393 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-25 01:33:21,394 INFO ]: Interpolant automaton has 4 states [2018-06-25 01:33:21,394 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 01:33:21,394 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 01:33:21,394 INFO ]: Start difference. First operand 8 states and 41 transitions. Second operand 4 states. [2018-06-25 01:33:21,458 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:33:21,458 INFO ]: Finished difference Result 12 states and 45 transitions. [2018-06-25 01:33:21,458 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 01:33:21,458 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-25 01:33:21,458 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:33:21,459 INFO ]: With dead ends: 12 [2018-06-25 01:33:21,459 INFO ]: Without dead ends: 12 [2018-06-25 01:33:21,459 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 01:33:21,459 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-25 01:33:21,461 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 8. [2018-06-25 01:33:21,461 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-25 01:33:21,461 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 41 transitions. [2018-06-25 01:33:21,461 INFO ]: Start accepts. Automaton has 8 states and 41 transitions. Word has length 6 [2018-06-25 01:33:21,461 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:33:21,461 INFO ]: Abstraction has 8 states and 41 transitions. [2018-06-25 01:33:21,461 INFO ]: Interpolant automaton has 4 states. [2018-06-25 01:33:21,461 INFO ]: Start isEmpty. Operand 8 states and 41 transitions. [2018-06-25 01:33:21,461 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-25 01:33:21,461 INFO ]: Found error trace [2018-06-25 01:33:21,461 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-25 01:33:21,462 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:21,462 INFO ]: Analyzing trace with hash 1136035862, now seen corresponding path program 1 times [2018-06-25 01:33:21,462 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:21,462 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:21,463 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:21,463 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:21,463 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:21,496 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:21,722 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:21,723 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:33:21,723 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 01:33:21,729 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:21,775 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:21,777 INFO ]: Computing forward predicates... [2018-06-25 01:33:22,114 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:22,716 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:22,737 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:33:22,737 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 01:33:22,737 INFO ]: Interpolant automaton has 5 states [2018-06-25 01:33:22,737 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 01:33:22,737 INFO ]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 01:33:22,738 INFO ]: Start difference. First operand 8 states and 41 transitions. Second operand 5 states. [2018-06-25 01:33:22,809 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:33:22,809 INFO ]: Finished difference Result 14 states and 47 transitions. [2018-06-25 01:33:22,810 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 01:33:22,810 INFO ]: Start accepts. Automaton has 5 states. Word has length 6 [2018-06-25 01:33:22,810 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:33:22,810 INFO ]: With dead ends: 14 [2018-06-25 01:33:22,810 INFO ]: Without dead ends: 14 [2018-06-25 01:33:22,811 INFO ]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-25 01:33:22,811 INFO ]: Start minimizeSevpa. Operand 14 states. [2018-06-25 01:33:22,812 INFO ]: Finished minimizeSevpa. Reduced states from 14 to 8. [2018-06-25 01:33:22,812 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-25 01:33:22,812 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 41 transitions. [2018-06-25 01:33:22,813 INFO ]: Start accepts. Automaton has 8 states and 41 transitions. Word has length 6 [2018-06-25 01:33:22,813 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:33:22,813 INFO ]: Abstraction has 8 states and 41 transitions. [2018-06-25 01:33:22,813 INFO ]: Interpolant automaton has 5 states. [2018-06-25 01:33:22,813 INFO ]: Start isEmpty. Operand 8 states and 41 transitions. [2018-06-25 01:33:22,813 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 01:33:22,813 INFO ]: Found error trace [2018-06-25 01:33:22,813 INFO ]: trace histogram [2, 1, 1, 1, 1, 1] [2018-06-25 01:33:22,813 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:33:22,813 INFO ]: Analyzing trace with hash 1198695727, now seen corresponding path program 2 times [2018-06-25 01:33:22,813 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:33:22,813 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:33:22,814 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:22,814 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:33:22,814 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:33:22,891 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:23,155 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:33:23,155 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:33:23,155 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 [2018-06-25 01:33:23,162 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 01:33:23,243 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 01:33:23,243 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:33:23,247 INFO ]: Computing forward predicates... [2018-06-25 01:33:24,337 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,342 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,362 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,365 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,399 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:24,438 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:24,453 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:24,460 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,466 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,469 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,474 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,476 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,479 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,502 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:24,509 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,513 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:24,528 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,536 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:24,549 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,568 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:24,592 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,595 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,600 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,603 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:24,609 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:24,619 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,621 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:24,631 WARN ]: expecting exponential blowup for input size 7 Received shutdown request... [2018-06-25 01:34:02,567 INFO ]: Timeout while computing interpolants [2018-06-25 01:34:02,768 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 01:34:02,768 WARN ]: Verification canceled [2018-06-25 01:34:02,770 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-25 01:34:02,771 WARN ]: Timeout [2018-06-25 01:34:02,771 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 01:34:02 BasicIcfg [2018-06-25 01:34:02,771 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 01:34:02,773 INFO ]: Toolchain (without parser) took 68523.19 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 217.5 MB in the beginning and 359.9 MB in the end (delta: -142.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 3.6 GB. [2018-06-25 01:34:02,773 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 303.0 MB. Free memory is still 265.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 01:34:02,774 INFO ]: ChcToBoogie took 85.51 ms. Allocated memory is still 303.0 MB. Free memory was 217.5 MB in the beginning and 213.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:34:02,774 INFO ]: Boogie Preprocessor took 92.60 ms. Allocated memory is still 303.0 MB. Free memory was 213.6 MB in the beginning and 211.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:34:02,775 INFO ]: RCFGBuilder took 483.64 ms. Allocated memory was 303.0 MB in the beginning and 325.6 MB in the end (delta: 22.5 MB). Free memory was 211.6 MB in the beginning and 288.5 MB in the end (delta: -76.9 MB). Peak memory consumption was 34.2 MB. Max. memory is 3.6 GB. [2018-06-25 01:34:02,775 INFO ]: BlockEncodingV2 took 12906.88 ms. Allocated memory was 325.6 MB in the beginning and 352.8 MB in the end (delta: 27.3 MB). Free memory was 288.5 MB in the beginning and 326.5 MB in the end (delta: -38.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:34:02,776 INFO ]: TraceAbstraction took 54944.11 ms. Allocated memory was 352.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 326.5 MB in the beginning and 359.9 MB in the end (delta: -33.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 3.6 GB. [2018-06-25 01:34:02,780 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, 39 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 303.0 MB. Free memory is still 265.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 85.51 ms. Allocated memory is still 303.0 MB. Free memory was 217.5 MB in the beginning and 213.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 92.60 ms. Allocated memory is still 303.0 MB. Free memory was 213.6 MB in the beginning and 211.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 483.64 ms. Allocated memory was 303.0 MB in the beginning and 325.6 MB in the end (delta: 22.5 MB). Free memory was 211.6 MB in the beginning and 288.5 MB in the end (delta: -76.9 MB). Peak memory consumption was 34.2 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 12906.88 ms. Allocated memory was 325.6 MB in the beginning and 352.8 MB in the end (delta: 27.3 MB). Free memory was 288.5 MB in the beginning and 326.5 MB in the end (delta: -38.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 54944.11 ms. Allocated memory was 352.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 326.5 MB in the beginning and 359.9 MB in the end (delta: -33.4 MB). Peak memory consumption was 1.1 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 8 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 6 locations, 1 error locations. TIMEOUT Result, 54.8s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 345 SDtfs, 0 SDslu, 42 SDs, 0 SdLazy, 283 SolverSat, 224 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=6, 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, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 679 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1080 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 0/8 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/svd4.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-25_01-34-02-792.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/svd4.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-25_01-34-02-792.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/svd4.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-25_01-34-02-792.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/svd4.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_01-34-02-792.csv Completed graceful shutdown