java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/hopv/lia/termination/binomial02.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:26:29,903 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:26:29,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:26:29,917 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:26:29,917 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:26:29,918 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:26:29,919 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:26:29,921 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:26:29,922 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:26:29,923 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:26:29,926 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:26:29,926 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:26:29,927 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:26:29,928 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:26:29,929 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:26:29,930 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:26:29,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:26:29,937 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:26:29,939 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:26:29,940 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:26:29,941 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:26:29,943 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:26:29,944 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:26:29,944 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:26:29,945 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:26:29,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:26:29,947 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:26:29,947 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:26:29,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:26:29,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:26:29,950 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:26:29,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:26:29,951 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:26:29,951 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:26:29,952 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:26:29,952 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:26:29,975 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:26:29,976 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:26:29,976 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:26:29,976 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:26:29,977 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:26:29,978 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:26:29,978 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:26:29,978 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:26:29,978 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:26:29,978 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:26:29,979 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:26:29,980 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:26:29,980 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:26:29,980 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:26:29,980 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:26:29,981 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:26:29,981 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:26:29,981 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:26:29,981 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:26:29,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:26:29,981 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:26:29,984 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:26:29,985 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:26:30,033 INFO ]: Repository-Root is: /tmp [2018-06-24 21:26:30,054 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:26:30,058 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:26:30,060 INFO ]: Initializing SmtParser... [2018-06-24 21:26:30,060 INFO ]: SmtParser initialized [2018-06-24 21:26:30,061 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/binomial02.smt2 [2018-06-24 21:26:30,062 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 21:26:30,158 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/binomial02.smt2 unknown [2018-06-24 21:26:30,686 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/binomial02.smt2 [2018-06-24 21:26:30,698 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:26:30,704 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:26:30,705 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:26:30,705 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:26:30,705 INFO ]: ChcToBoogie initialized [2018-06-24 21:26:30,717 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:26:30" (1/1) ... [2018-06-24 21:26:30,785 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30 Unit [2018-06-24 21:26:30,785 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:26:30,786 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:26:30,786 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:26:30,786 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:26:30,819 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30" (1/1) ... [2018-06-24 21:26:30,819 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30" (1/1) ... [2018-06-24 21:26:30,837 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30" (1/1) ... [2018-06-24 21:26:30,838 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30" (1/1) ... [2018-06-24 21:26:30,853 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30" (1/1) ... [2018-06-24 21:26:30,856 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30" (1/1) ... [2018-06-24 21:26:30,867 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30" (1/1) ... [2018-06-24 21:26:30,870 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:26:30,871 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:26:30,871 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:26:30,871 INFO ]: RCFGBuilder initialized [2018-06-24 21:26:30,871 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:26:30,896 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:26:30,896 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:26:30,896 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:26:30,896 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:26:30,896 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:26:30,896 INFO ]: Found implementation of procedure Ultimate.START [2018-06-24 21:26:31,774 INFO ]: Using library mode [2018-06-24 21:26:31,775 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:26:31 BoogieIcfgContainer [2018-06-24 21:26:31,775 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:26:31,775 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:26:31,775 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:26:31,776 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:26:31,777 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:26:31" (1/1) ... [2018-06-24 21:26:31,798 INFO ]: Initial Icfg 49 locations, 79 edges [2018-06-24 21:26:31,799 INFO ]: Using Remove infeasible edges [2018-06-24 21:26:31,800 INFO ]: Using Maximize final states [2018-06-24 21:26:31,800 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:26:31,801 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:26:31,802 INFO ]: Using Remove sink states [2018-06-24 21:26:31,803 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:26:31,803 INFO ]: Using Use SBE [2018-06-24 21:26:31,888 INFO ]: SBE split 4 edges [2018-06-24 21:26:31,900 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-24 21:26:31,903 INFO ]: 0 new accepting states [2018-06-24 21:26:32,449 INFO ]: Removed 63 edges and 15 locations by large block encoding [2018-06-24 21:26:32,451 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-24 21:26:32,454 INFO ]: Removed 5 edges and 0 locations because of local infeasibility [2018-06-24 21:26:32,454 INFO ]: 0 new accepting states [2018-06-24 21:26:32,454 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:26:32,455 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:26:32,455 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:26:32,455 INFO ]: 0 new accepting states [2018-06-24 21:26:32,456 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:26:32,456 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:26:32,456 INFO ]: Encoded RCFG 31 locations, 64 edges [2018-06-24 21:26:32,458 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:26:32 BasicIcfg [2018-06-24 21:26:32,459 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:26:32,460 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:26:32,460 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:26:32,465 INFO ]: TraceAbstraction initialized [2018-06-24 21:26:32,465 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:26:30" (1/4) ... [2018-06-24 21:26:32,466 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694dce0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:26:32, skipping insertion in model container [2018-06-24 21:26:32,466 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:26:30" (2/4) ... [2018-06-24 21:26:32,467 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694dce0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:26:32, skipping insertion in model container [2018-06-24 21:26:32,467 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:26:31" (3/4) ... [2018-06-24 21:26:32,467 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694dce0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:26:32, skipping insertion in model container [2018-06-24 21:26:32,467 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:26:32" (4/4) ... [2018-06-24 21:26:32,472 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:26:32,481 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:26:32,490 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:26:32,540 INFO ]: Using default assertion order modulation [2018-06-24 21:26:32,541 INFO ]: Interprodecural is true [2018-06-24 21:26:32,541 INFO ]: Hoare is false [2018-06-24 21:26:32,541 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:26:32,541 INFO ]: Backedges is TWOTRACK [2018-06-24 21:26:32,541 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:26:32,541 INFO ]: Difference is false [2018-06-24 21:26:32,541 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:26:32,541 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:26:32,557 INFO ]: Start isEmpty. Operand 31 states. [2018-06-24 21:26:32,576 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:26:32,576 INFO ]: Found error trace [2018-06-24 21:26:32,577 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:26:32,578 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:26:32,583 INFO ]: Analyzing trace with hash 66589977, now seen corresponding path program 1 times [2018-06-24 21:26:32,585 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:26:32,585 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:26:32,627 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:26:32,627 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:26:32,627 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:26:32,680 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:26:32,773 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:26:32,777 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:26:32,777 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:26:32,779 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:26:32,793 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:26:32,794 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:26:32,796 INFO ]: Start difference. First operand 31 states. Second operand 3 states. [2018-06-24 21:26:33,374 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:26:33,374 INFO ]: Finished difference Result 41 states and 84 transitions. [2018-06-24 21:26:33,374 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:26:33,375 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:26:33,375 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:26:33,386 INFO ]: With dead ends: 41 [2018-06-24 21:26:33,386 INFO ]: Without dead ends: 37 [2018-06-24 21:26:33,388 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 21:26:33,403 INFO ]: Start minimizeSevpa. Operand 37 states. [2018-06-24 21:26:33,433 INFO ]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-06-24 21:26:33,435 INFO ]: Start removeUnreachable. Operand 37 states. [2018-06-24 21:26:33,438 INFO ]: Finished removeUnreachable. Reduced from 37 states to 37 states and 74 transitions. [2018-06-24 21:26:33,439 INFO ]: Start accepts. Automaton has 37 states and 74 transitions. Word has length 5 [2018-06-24 21:26:33,440 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:26:33,440 INFO ]: Abstraction has 37 states and 74 transitions. [2018-06-24 21:26:33,440 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:26:33,441 INFO ]: Start isEmpty. Operand 37 states and 74 transitions. [2018-06-24 21:26:33,443 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:26:33,443 INFO ]: Found error trace [2018-06-24 21:26:33,443 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:26:33,443 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:26:33,443 INFO ]: Analyzing trace with hash 2098395759, now seen corresponding path program 1 times [2018-06-24 21:26:33,443 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:26:33,443 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:26:33,444 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:26:33,444 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:26:33,444 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:26:33,457 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:26:33,532 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:26:33,532 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:26:33,532 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:26:33,534 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:26:33,534 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:26:33,534 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:26:33,534 INFO ]: Start difference. First operand 37 states and 74 transitions. Second operand 3 states. [2018-06-24 21:26:34,276 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:26:34,276 INFO ]: Finished difference Result 49 states and 104 transitions. [2018-06-24 21:26:34,277 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:26:34,277 INFO ]: Start accepts. Automaton has 3 states. Word has length 6 [2018-06-24 21:26:34,277 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:26:34,284 INFO ]: With dead ends: 49 [2018-06-24 21:26:34,284 INFO ]: Without dead ends: 49 [2018-06-24 21:26:34,285 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 21:26:34,285 INFO ]: Start minimizeSevpa. Operand 49 states. [2018-06-24 21:26:34,301 INFO ]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-06-24 21:26:34,301 INFO ]: Start removeUnreachable. Operand 49 states. [2018-06-24 21:26:34,304 INFO ]: Finished removeUnreachable. Reduced from 49 states to 49 states and 104 transitions. [2018-06-24 21:26:34,304 INFO ]: Start accepts. Automaton has 49 states and 104 transitions. Word has length 6 [2018-06-24 21:26:34,304 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:26:34,304 INFO ]: Abstraction has 49 states and 104 transitions. [2018-06-24 21:26:34,304 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:26:34,304 INFO ]: Start isEmpty. Operand 49 states and 104 transitions. [2018-06-24 21:26:34,308 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-24 21:26:34,308 INFO ]: Found error trace [2018-06-24 21:26:34,308 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:26:34,308 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:26:34,308 INFO ]: Analyzing trace with hash -435415143, now seen corresponding path program 1 times [2018-06-24 21:26:34,308 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:26:34,308 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:26:34,309 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:26:34,309 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:26:34,309 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:26:34,326 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:26:34,370 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 21:26:34,370 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:26:34,370 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:26:34,370 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:26:34,370 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:26:34,370 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:26:34,370 INFO ]: Start difference. First operand 49 states and 104 transitions. Second operand 3 states. [2018-06-24 21:26:34,470 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:26:34,470 INFO ]: Finished difference Result 56 states and 131 transitions. [2018-06-24 21:26:34,470 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:26:34,471 INFO ]: Start accepts. Automaton has 3 states. Word has length 11 [2018-06-24 21:26:34,471 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:26:34,471 INFO ]: With dead ends: 56 [2018-06-24 21:26:34,471 INFO ]: Without dead ends: 0 [2018-06-24 21:26:34,471 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 21:26:34,471 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:26:34,471 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:26:34,471 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:26:34,471 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:26:34,471 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-06-24 21:26:34,471 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:26:34,471 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:26:34,471 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:26:34,471 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:26:34,471 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:26:34,473 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:26:34,475 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:26:34 BasicIcfg [2018-06-24 21:26:34,475 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:26:34,476 INFO ]: Toolchain (without parser) took 3777.33 ms. Allocated memory was 309.9 MB in the beginning and 324.5 MB in the end (delta: 14.7 MB). Free memory was 247.3 MB in the beginning and 194.3 MB in the end (delta: 53.0 MB). Peak memory consumption was 67.7 MB. Max. memory is 3.6 GB. [2018-06-24 21:26:34,480 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:26:34,480 INFO ]: ChcToBoogie took 80.79 ms. Allocated memory is still 309.9 MB. Free memory was 246.3 MB in the beginning and 243.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:26:34,481 INFO ]: Boogie Preprocessor took 84.26 ms. Allocated memory is still 309.9 MB. Free memory was 243.3 MB in the beginning and 241.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:26:34,481 INFO ]: RCFGBuilder took 904.19 ms. Allocated memory is still 309.9 MB. Free memory was 241.3 MB in the beginning and 208.3 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:26:34,482 INFO ]: BlockEncodingV2 took 683.36 ms. Allocated memory was 309.9 MB in the beginning and 324.5 MB in the end (delta: 14.7 MB). Free memory was 208.3 MB in the beginning and 274.0 MB in the end (delta: -65.7 MB). Peak memory consumption was 25.8 MB. Max. memory is 3.6 GB. [2018-06-24 21:26:34,482 INFO ]: TraceAbstraction took 2014.91 ms. Allocated memory is still 324.5 MB. Free memory was 274.0 MB in the beginning and 195.8 MB in the end (delta: 78.2 MB). Peak memory consumption was 78.2 MB. Max. memory is 3.6 GB. [2018-06-24 21:26:34,488 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 49 locations, 79 edges - StatisticsResult: Encoded RCFG 31 locations, 64 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 80.79 ms. Allocated memory is still 309.9 MB. Free memory was 246.3 MB in the beginning and 243.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 84.26 ms. Allocated memory is still 309.9 MB. Free memory was 243.3 MB in the beginning and 241.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 904.19 ms. Allocated memory is still 309.9 MB. Free memory was 241.3 MB in the beginning and 208.3 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 683.36 ms. Allocated memory was 309.9 MB in the beginning and 324.5 MB in the end (delta: 14.7 MB). Free memory was 208.3 MB in the beginning and 274.0 MB in the end (delta: -65.7 MB). Peak memory consumption was 25.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2014.91 ms. Allocated memory is still 324.5 MB. Free memory was 274.0 MB in the beginning and 195.8 MB in the end (delta: 78.2 MB). Peak memory consumption was 78.2 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 161 SDtfs, 33 SDslu, 67 SDs, 0 SdLazy, 142 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 287 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/binomial02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-26-34-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/binomial02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-26-34-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/binomial02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-26-34-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/binomial02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-26-34-498.csv Received shutdown request...