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 0.1.23-62c3406-m [2018-06-26 17:20:45,993 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 17:20:45,996 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 17:20:46,006 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 17:20:46,006 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 17:20:46,007 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 17:20:46,008 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 17:20:46,012 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 17:20:46,014 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 17:20:46,017 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 17:20:46,017 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 17:20:46,018 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 17:20:46,018 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 17:20:46,019 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 17:20:46,024 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 17:20:46,025 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 17:20:46,025 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 17:20:46,038 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 17:20:46,040 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 17:20:46,041 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 17:20:46,042 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 17:20:46,043 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 17:20:46,045 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 17:20:46,045 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 17:20:46,046 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 17:20:46,046 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 17:20:46,052 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 17:20:46,053 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 17:20:46,054 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 17:20:46,055 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 17:20:46,055 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 17:20:46,055 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 17:20:46,056 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 17:20:46,056 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 17:20:46,056 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 17:20:46,061 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 17:20:46,061 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 17:20:46,083 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 17:20:46,083 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 17:20:46,084 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 17:20:46,084 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 17:20:46,085 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 17:20:46,085 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 17:20:46,085 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 17:20:46,085 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 17:20:46,086 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 17:20:46,086 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 17:20:46,086 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 17:20:46,086 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 17:20:46,086 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 17:20:46,087 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 17:20:46,087 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 17:20:46,087 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 17:20:46,087 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 17:20:46,087 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 17:20:46,088 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 17:20:46,088 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 17:20:46,088 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 17:20:46,089 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 17:20:46,090 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 17:20:46,135 INFO ]: Repository-Root is: /tmp [2018-06-26 17:20:46,148 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 17:20:46,151 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 17:20:46,152 INFO ]: Initializing SmtParser... [2018-06-26 17:20:46,153 INFO ]: SmtParser initialized [2018-06-26 17:20:46,153 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/delauny-edge-flipping.7.smt2 [2018-06-26 17:20:46,155 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-26 17:20:46,245 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/delauny-edge-flipping.7.smt2 unknown [2018-06-26 17:20:46,491 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/delauny-edge-flipping.7.smt2 [2018-06-26 17:20:46,496 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 17:20:46,501 INFO ]: Walking toolchain with 5 elements. [2018-06-26 17:20:46,502 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 17:20:46,502 INFO ]: Initializing ChcToBoogie... [2018-06-26 17:20:46,507 INFO ]: ChcToBoogie initialized [2018-06-26 17:20:46,510 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:20:46" (1/1) ... [2018-06-26 17:20:46,564 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46 Unit [2018-06-26 17:20:46,564 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 17:20:46,564 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 17:20:46,564 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 17:20:46,565 INFO ]: Boogie Preprocessor initialized [2018-06-26 17:20:46,585 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46" (1/1) ... [2018-06-26 17:20:46,585 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46" (1/1) ... [2018-06-26 17:20:46,593 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46" (1/1) ... [2018-06-26 17:20:46,593 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46" (1/1) ... [2018-06-26 17:20:46,597 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46" (1/1) ... [2018-06-26 17:20:46,599 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46" (1/1) ... [2018-06-26 17:20:46,610 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46" (1/1) ... [2018-06-26 17:20:46,612 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 17:20:46,613 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 17:20:46,613 INFO ]: Initializing RCFGBuilder... [2018-06-26 17:20:46,613 INFO ]: RCFGBuilder initialized [2018-06-26 17:20:46,614 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-26 17:20:46,630 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 17:20:46,631 INFO ]: Found specification of procedure gotoProc [2018-06-26 17:20:46,631 INFO ]: Found implementation of procedure gotoProc [2018-06-26 17:20:46,631 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 17:20:46,631 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 17:20:46,631 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 17:20:46,951 INFO ]: Using library mode [2018-06-26 17:20:46,951 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:20:46 BoogieIcfgContainer [2018-06-26 17:20:46,952 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 17:20:46,952 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 17:20:46,952 INFO ]: Initializing BlockEncodingV2... [2018-06-26 17:20:46,953 INFO ]: BlockEncodingV2 initialized [2018-06-26 17:20:46,953 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:20:46" (1/1) ... [2018-06-26 17:20:46,967 INFO ]: Initial Icfg 18 locations, 23 edges [2018-06-26 17:20:46,968 INFO ]: Using Remove infeasible edges [2018-06-26 17:20:46,969 INFO ]: Using Maximize final states [2018-06-26 17:20:46,969 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 17:20:46,969 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 17:20:46,972 INFO ]: Using Remove sink states [2018-06-26 17:20:46,973 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 17:20:46,973 INFO ]: Using Use SBE [2018-06-26 17:20:46,978 INFO ]: SBE split 0 edges [2018-06-26 17:20:46,983 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-26 17:20:46,985 INFO ]: 0 new accepting states [2018-06-26 17:20:47,236 INFO ]: Removed 26 edges and 7 locations by large block encoding [2018-06-26 17:20:47,238 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 17:20:47,239 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 17:20:47,239 INFO ]: 0 new accepting states [2018-06-26 17:20:47,242 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 17:20:47,242 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 17:20:47,242 INFO ]: Encoded RCFG 9 locations, 15 edges [2018-06-26 17:20:47,243 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:20:47 BasicIcfg [2018-06-26 17:20:47,243 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 17:20:47,244 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 17:20:47,244 INFO ]: Initializing TraceAbstraction... [2018-06-26 17:20:47,248 INFO ]: TraceAbstraction initialized [2018-06-26 17:20:47,248 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:20:46" (1/4) ... [2018-06-26 17:20:47,249 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b9daeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 05:20:47, skipping insertion in model container [2018-06-26 17:20:47,249 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:20:46" (2/4) ... [2018-06-26 17:20:47,249 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b9daeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 05:20:47, skipping insertion in model container [2018-06-26 17:20:47,250 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:20:46" (3/4) ... [2018-06-26 17:20:47,251 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b9daeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:20:47, skipping insertion in model container [2018-06-26 17:20:47,251 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:20:47" (4/4) ... [2018-06-26 17:20:47,253 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 17:20:47,262 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 17:20:47,280 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 17:20:47,324 INFO ]: Using default assertion order modulation [2018-06-26 17:20:47,324 INFO ]: Interprodecural is true [2018-06-26 17:20:47,324 INFO ]: Hoare is false [2018-06-26 17:20:47,324 INFO ]: Compute interpolants for FPandBP [2018-06-26 17:20:47,324 INFO ]: Backedges is TWOTRACK [2018-06-26 17:20:47,324 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 17:20:47,324 INFO ]: Difference is false [2018-06-26 17:20:47,324 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 17:20:47,324 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 17:20:47,333 INFO ]: Start isEmpty. Operand 9 states. [2018-06-26 17:20:47,342 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-26 17:20:47,342 INFO ]: Found error trace [2018-06-26 17:20:47,343 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-26 17:20:47,343 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:20:47,348 INFO ]: Analyzing trace with hash 1166361, now seen corresponding path program 1 times [2018-06-26 17:20:47,350 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:20:47,350 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:20:47,388 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:20:47,388 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:20:47,388 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:20:47,442 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:20:47,532 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:20:47,534 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:20:47,534 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:20:47,535 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:20:47,546 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:20:47,547 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:20:47,549 INFO ]: Start difference. First operand 9 states. Second operand 3 states. [2018-06-26 17:20:47,692 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:20:47,693 INFO ]: Finished difference Result 15 states and 27 transitions. [2018-06-26 17:20:47,693 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:20:47,695 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-26 17:20:47,695 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:20:47,710 INFO ]: With dead ends: 15 [2018-06-26 17:20:47,710 INFO ]: Without dead ends: 15 [2018-06-26 17:20:47,712 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:20:47,729 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-26 17:20:47,759 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-26 17:20:47,761 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-26 17:20:47,762 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 27 transitions. [2018-06-26 17:20:47,763 INFO ]: Start accepts. Automaton has 15 states and 27 transitions. Word has length 4 [2018-06-26 17:20:47,765 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:20:47,765 INFO ]: Abstraction has 15 states and 27 transitions. [2018-06-26 17:20:47,765 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:20:47,765 INFO ]: Start isEmpty. Operand 15 states and 27 transitions. [2018-06-26 17:20:47,766 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-26 17:20:47,767 INFO ]: Found error trace [2018-06-26 17:20:47,767 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:20:47,767 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:20:47,767 INFO ]: Analyzing trace with hash -1777326688, now seen corresponding path program 1 times [2018-06-26 17:20:47,767 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:20:47,767 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:20:47,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:20:47,770 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:20:47,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:20:47,810 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:20:47,877 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 17:20:47,877 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:20:47,877 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:20:47,878 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:20:47,879 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:20:47,879 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:20:47,879 INFO ]: Start difference. First operand 15 states and 27 transitions. Second operand 3 states. [2018-06-26 17:20:47,987 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:20:47,988 INFO ]: Finished difference Result 21 states and 37 transitions. [2018-06-26 17:20:47,988 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:20:47,988 INFO ]: Start accepts. Automaton has 3 states. Word has length 8 [2018-06-26 17:20:47,988 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:20:47,989 INFO ]: With dead ends: 21 [2018-06-26 17:20:47,989 INFO ]: Without dead ends: 21 [2018-06-26 17:20:47,990 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:20:47,990 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-26 17:20:47,995 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-26 17:20:47,995 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-26 17:20:47,996 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 37 transitions. [2018-06-26 17:20:47,996 INFO ]: Start accepts. Automaton has 21 states and 37 transitions. Word has length 8 [2018-06-26 17:20:47,996 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:20:47,996 INFO ]: Abstraction has 21 states and 37 transitions. [2018-06-26 17:20:47,996 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:20:47,996 INFO ]: Start isEmpty. Operand 21 states and 37 transitions. [2018-06-26 17:20:47,997 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-26 17:20:47,997 INFO ]: Found error trace [2018-06-26 17:20:47,997 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:20:47,997 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:20:47,997 INFO ]: Analyzing trace with hash -1776403167, now seen corresponding path program 1 times [2018-06-26 17:20:47,997 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:20:47,997 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:20:47,998 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:20:47,998 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:20:47,998 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:20:48,031 INFO ]: Conjunction of SSA is sat [2018-06-26 17:20:48,038 INFO ]: Counterexample might be feasible [2018-06-26 17:20:48,051 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 17:20:48,052 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:20:48 BasicIcfg [2018-06-26 17:20:48,053 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 17:20:48,053 INFO ]: Toolchain (without parser) took 1557.30 ms. Allocated memory is still 309.3 MB. Free memory was 263.8 MB in the beginning and 199.6 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 3.6 GB. [2018-06-26 17:20:48,055 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 309.3 MB. Free memory is still 274.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 17:20:48,055 INFO ]: ChcToBoogie took 62.12 ms. Allocated memory is still 309.3 MB. Free memory was 262.8 MB in the beginning and 260.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:20:48,056 INFO ]: Boogie Preprocessor took 47.74 ms. Allocated memory is still 309.3 MB. Free memory was 260.8 MB in the beginning and 259.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-26 17:20:48,056 INFO ]: RCFGBuilder took 338.79 ms. Allocated memory is still 309.3 MB. Free memory was 258.8 MB in the beginning and 246.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 3.6 GB. [2018-06-26 17:20:48,057 INFO ]: BlockEncodingV2 took 290.87 ms. Allocated memory is still 309.3 MB. Free memory was 246.6 MB in the beginning and 230.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:20:48,057 INFO ]: TraceAbstraction took 808.43 ms. Allocated memory is still 309.3 MB. Free memory was 230.7 MB in the beginning and 199.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 3.6 GB. [2018-06-26 17:20:48,061 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 0.06 ms. Allocated memory is still 309.3 MB. Free memory is still 274.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 62.12 ms. Allocated memory is still 309.3 MB. Free memory was 262.8 MB in the beginning and 260.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 47.74 ms. Allocated memory is still 309.3 MB. Free memory was 260.8 MB in the beginning and 259.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 338.79 ms. Allocated memory is still 309.3 MB. Free memory was 258.8 MB in the beginning and 246.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 290.87 ms. Allocated memory is still 309.3 MB. Free memory was 246.6 MB in the beginning and 230.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 808.43 ms. Allocated memory is still 309.3 MB. Free memory was 230.7 MB in the beginning and 199.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 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, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 11 SDslu, 10 SDs, 0 SdLazy, 27 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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-0-2018-06-26_17-20-48-083.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-1-2018-06-26_17-20-48-083.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-0-2018-06-26_17-20-48-083.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-0-2018-06-26_17-20-48-083.csv Received shutdown request...