java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/Consistency/delauny-edge-flipping.7.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:19:53,685 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:19:53,688 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:19:53,701 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:19:53,702 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:19:53,703 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:19:53,704 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:19:53,706 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:19:53,708 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:19:53,709 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:19:53,710 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:19:53,710 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:19:53,711 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:19:53,712 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:19:53,716 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:19:53,717 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:19:53,718 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:19:53,728 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:19:53,729 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:19:53,730 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:19:53,731 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:19:53,735 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:19:53,736 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:19:53,736 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:19:53,737 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:19:53,737 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:19:53,741 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:19:53,742 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:19:53,743 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:19:53,743 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:19:53,743 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:19:53,748 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:19:53,748 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:19:53,749 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:19:53,749 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:19:53,749 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:19:53,771 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:19:53,772 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:19:53,772 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:19:53,772 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:19:53,774 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:19:53,774 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:19:53,774 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:19:53,774 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:19:53,775 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:19:53,775 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:19:53,775 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:19:53,775 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:19:53,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:19:53,775 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:19:53,776 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:19:53,776 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:19:53,776 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:19:53,776 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:19:53,776 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:19:53,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:19:53,777 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:19:53,779 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:19:53,779 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:19:53,831 INFO ]: Repository-Root is: /tmp [2018-06-24 20:19:53,848 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:19:53,852 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:19:53,853 INFO ]: Initializing SmtParser... [2018-06-24 20:19:53,853 INFO ]: SmtParser initialized [2018-06-24 20:19:53,854 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/delauny-edge-flipping.7.smt2 [2018-06-24 20:19:53,855 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 [2018-06-24 20:19:53,939 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/delauny-edge-flipping.7.smt2 unknown [2018-06-24 20:19:54,156 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/delauny-edge-flipping.7.smt2 [2018-06-24 20:19:54,161 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:19:54,168 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:19:54,169 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:19:54,169 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:19:54,169 INFO ]: ChcToBoogie initialized [2018-06-24 20:19:54,172 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:19:54" (1/1) ... [2018-06-24 20:19:54,237 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54 Unit [2018-06-24 20:19:54,237 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:19:54,238 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:19:54,238 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:19:54,238 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:19:54,259 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54" (1/1) ... [2018-06-24 20:19:54,259 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54" (1/1) ... [2018-06-24 20:19:54,269 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54" (1/1) ... [2018-06-24 20:19:54,269 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54" (1/1) ... [2018-06-24 20:19:54,282 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54" (1/1) ... [2018-06-24 20:19:54,285 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54" (1/1) ... [2018-06-24 20:19:54,286 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54" (1/1) ... [2018-06-24 20:19:54,287 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:19:54,287 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:19:54,287 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:19:54,287 INFO ]: RCFGBuilder initialized [2018-06-24 20:19:54,288 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54" (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) [2018-06-24 20:19:54,301 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:19:54,301 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:19:54,301 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:19:54,301 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:19:54,301 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:19:54,301 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 [2018-06-24 20:19:54,642 INFO ]: Using library mode [2018-06-24 20:19:54,642 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:19:54 BoogieIcfgContainer [2018-06-24 20:19:54,643 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:19:54,643 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:19:54,643 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:19:54,644 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:19:54,645 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:19:54" (1/1) ... [2018-06-24 20:19:54,662 INFO ]: Initial Icfg 18 locations, 23 edges [2018-06-24 20:19:54,663 INFO ]: Using Remove infeasible edges [2018-06-24 20:19:54,663 INFO ]: Using Maximize final states [2018-06-24 20:19:54,664 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:19:54,664 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:19:54,667 INFO ]: Using Remove sink states [2018-06-24 20:19:54,668 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:19:54,668 INFO ]: Using Use SBE [2018-06-24 20:19:54,677 INFO ]: SBE split 0 edges [2018-06-24 20:19:54,683 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-24 20:19:54,685 INFO ]: 0 new accepting states [2018-06-24 20:19:54,964 INFO ]: Removed 26 edges and 7 locations by large block encoding [2018-06-24 20:19:54,966 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:19:54,967 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:19:54,967 INFO ]: 0 new accepting states [2018-06-24 20:19:54,968 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:19:54,970 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:19:54,970 INFO ]: Encoded RCFG 9 locations, 15 edges [2018-06-24 20:19:54,971 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:19:54 BasicIcfg [2018-06-24 20:19:54,971 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:19:54,972 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:19:54,972 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:19:54,977 INFO ]: TraceAbstraction initialized [2018-06-24 20:19:54,977 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:19:54" (1/4) ... [2018-06-24 20:19:54,978 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca7f990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:19:54, skipping insertion in model container [2018-06-24 20:19:54,978 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:54" (2/4) ... [2018-06-24 20:19:54,978 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca7f990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:19:54, skipping insertion in model container [2018-06-24 20:19:54,979 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:19:54" (3/4) ... [2018-06-24 20:19:54,979 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca7f990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:19:54, skipping insertion in model container [2018-06-24 20:19:54,979 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:19:54" (4/4) ... [2018-06-24 20:19:54,983 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:19:54,994 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:19:55,012 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:19:55,059 INFO ]: Using default assertion order modulation [2018-06-24 20:19:55,059 INFO ]: Interprodecural is true [2018-06-24 20:19:55,060 INFO ]: Hoare is false [2018-06-24 20:19:55,060 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:19:55,060 INFO ]: Backedges is TWOTRACK [2018-06-24 20:19:55,060 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:19:55,060 INFO ]: Difference is false [2018-06-24 20:19:55,060 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:19:55,060 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:19:55,073 INFO ]: Start isEmpty. Operand 9 states. [2018-06-24 20:19:55,085 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 20:19:55,085 INFO ]: Found error trace [2018-06-24 20:19:55,086 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 20:19:55,086 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:55,091 INFO ]: Analyzing trace with hash 1165400, now seen corresponding path program 1 times [2018-06-24 20:19:55,093 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:55,093 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:55,134 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:55,134 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:55,134 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:55,187 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:19:55,270 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:19:55,272 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:19:55,272 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:19:55,273 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:19:55,284 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:19:55,285 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:19:55,288 INFO ]: Start difference. First operand 9 states. Second operand 3 states. [2018-06-24 20:19:55,468 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:19:55,468 INFO ]: Finished difference Result 15 states and 27 transitions. [2018-06-24 20:19:55,468 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:19:55,469 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 20:19:55,469 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:19:55,478 INFO ]: With dead ends: 15 [2018-06-24 20:19:55,478 INFO ]: Without dead ends: 15 [2018-06-24 20:19:55,483 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 [2018-06-24 20:19:55,496 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-24 20:19:55,528 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-24 20:19:55,530 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-24 20:19:55,531 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 27 transitions. [2018-06-24 20:19:55,533 INFO ]: Start accepts. Automaton has 15 states and 27 transitions. Word has length 4 [2018-06-24 20:19:55,534 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:19:55,534 INFO ]: Abstraction has 15 states and 27 transitions. [2018-06-24 20:19:55,534 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:19:55,535 INFO ]: Start isEmpty. Operand 15 states and 27 transitions. [2018-06-24 20:19:55,539 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 20:19:55,539 INFO ]: Found error trace [2018-06-24 20:19:55,539 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:19:55,539 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:55,539 INFO ]: Analyzing trace with hash -1778250209, now seen corresponding path program 1 times [2018-06-24 20:19:55,539 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:55,539 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:55,540 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:55,540 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:55,540 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:55,581 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:19:55,698 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:19:55,698 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:19:55,698 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:19:55,700 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:19:55,700 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:19:55,700 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:19:55,700 INFO ]: Start difference. First operand 15 states and 27 transitions. Second operand 3 states. [2018-06-24 20:19:55,896 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:19:55,896 INFO ]: Finished difference Result 21 states and 37 transitions. [2018-06-24 20:19:55,896 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:19:55,896 INFO ]: Start accepts. Automaton has 3 states. Word has length 8 [2018-06-24 20:19:55,897 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:19:55,898 INFO ]: With dead ends: 21 [2018-06-24 20:19:55,898 INFO ]: Without dead ends: 21 [2018-06-24 20:19:55,899 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 [2018-06-24 20:19:55,899 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-24 20:19:55,904 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-24 20:19:55,904 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-24 20:19:55,905 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 37 transitions. [2018-06-24 20:19:55,905 INFO ]: Start accepts. Automaton has 21 states and 37 transitions. Word has length 8 [2018-06-24 20:19:55,905 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:19:55,905 INFO ]: Abstraction has 21 states and 37 transitions. [2018-06-24 20:19:55,905 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:19:55,905 INFO ]: Start isEmpty. Operand 21 states and 37 transitions. [2018-06-24 20:19:55,907 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 20:19:55,907 INFO ]: Found error trace [2018-06-24 20:19:55,907 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:19:55,907 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:55,907 INFO ]: Analyzing trace with hash -1774556125, now seen corresponding path program 1 times [2018-06-24 20:19:55,907 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:55,907 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:55,908 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:55,908 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:55,908 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:55,946 INFO ]: Conjunction of SSA is sat [2018-06-24 20:19:55,952 INFO ]: Counterexample might be feasible [2018-06-24 20:19:55,964 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:19:55,965 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:19:55 BasicIcfg [2018-06-24 20:19:55,965 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:19:55,966 INFO ]: Toolchain (without parser) took 1804.55 ms. Allocated memory is still 304.6 MB. Free memory was 258.1 MB in the beginning and 194.9 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:55,967 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 304.6 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:19:55,968 INFO ]: ChcToBoogie took 68.25 ms. Allocated memory is still 304.6 MB. Free memory was 258.1 MB in the beginning and 256.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:55,968 INFO ]: Boogie Preprocessor took 49.34 ms. Allocated memory is still 304.6 MB. Free memory was 256.1 MB in the beginning and 255.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:55,969 INFO ]: RCFGBuilder took 355.23 ms. Allocated memory is still 304.6 MB. Free memory was 254.1 MB in the beginning and 241.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:55,969 INFO ]: BlockEncodingV2 took 327.94 ms. Allocated memory is still 304.6 MB. Free memory was 241.9 MB in the beginning and 225.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:55,970 INFO ]: TraceAbstraction took 993.34 ms. Allocated memory is still 304.6 MB. Free memory was 225.9 MB in the beginning and 194.9 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:55,979 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 18 locations, 23 edges - StatisticsResult: Encoded RCFG 9 locations, 15 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 304.6 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 68.25 ms. Allocated memory is still 304.6 MB. Free memory was 258.1 MB in the beginning and 256.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 49.34 ms. Allocated memory is still 304.6 MB. Free memory was 256.1 MB in the beginning and 255.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 355.23 ms. Allocated memory is still 304.6 MB. Free memory was 254.1 MB in the beginning and 241.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 327.94 ms. Allocated memory is still 304.6 MB. Free memory was 241.9 MB in the beginning and 225.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 993.34 ms. Allocated memory is still 304.6 MB. Free memory was 225.9 MB in the beginning and 194.9 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assume true; [L0] CALL call gotoProc(3, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int); [L0] RET call gotoProc(3, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int); [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 9 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 11 SDslu, 10 SDs, 0 SdLazy, 27 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=2, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/delauny-edge-flipping.7.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-19-55-995.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/delauny-edge-flipping.7.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-19-55-995.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/delauny-edge-flipping.7.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-19-55-995.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/delauny-edge-flipping.7.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-19-55-995.csv Received shutdown request...