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/mochi/mc91_98.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:25:34,027 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:25:34,029 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:25:34,040 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:25:34,040 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:25:34,041 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:25:34,042 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:25:34,044 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:25:34,045 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:25:34,046 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:25:34,047 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:25:34,047 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:25:34,048 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:25:34,049 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:25:34,050 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:25:34,051 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:25:34,051 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:25:34,053 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:25:34,055 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:25:34,057 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:25:34,058 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:25:34,059 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:25:34,061 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:25:34,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:25:34,062 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:25:34,063 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:25:34,063 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:25:34,064 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:25:34,065 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:25:34,066 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:25:34,066 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:25:34,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:25:34,067 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:25:34,067 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:25:34,068 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:25:34,069 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:25:34,069 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:25:34,086 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:25:34,086 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:25:34,091 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:25:34,091 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:25:34,092 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:25:34,092 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:25:34,092 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:25:34,092 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:25:34,093 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:25:34,093 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:25:34,093 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:25:34,093 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:25:34,093 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:25:34,094 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:25:34,094 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:25:34,094 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:25:34,094 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:25:34,094 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:25:34,095 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:25:34,095 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:25:34,095 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:25:34,096 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:25:34,096 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:25:34,141 INFO ]: Repository-Root is: /tmp [2018-06-26 18:25:34,152 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:25:34,159 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:25:34,160 INFO ]: Initializing SmtParser... [2018-06-26 18:25:34,160 INFO ]: SmtParser initialized [2018-06-26 18:25:34,160 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/mc91_98.smt2 [2018-06-26 18:25:34,161 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 18:25:34,249 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/mc91_98.smt2 unknown [2018-06-26 18:25:34,409 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/mc91_98.smt2 [2018-06-26 18:25:34,416 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:25:34,421 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:25:34,421 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:25:34,422 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:25:34,422 INFO ]: ChcToBoogie initialized [2018-06-26 18:25:34,425 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:25:34" (1/1) ... [2018-06-26 18:25:34,478 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34 Unit [2018-06-26 18:25:34,478 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:25:34,480 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:25:34,480 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:25:34,480 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:25:34,501 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34" (1/1) ... [2018-06-26 18:25:34,501 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34" (1/1) ... [2018-06-26 18:25:34,506 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34" (1/1) ... [2018-06-26 18:25:34,506 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34" (1/1) ... [2018-06-26 18:25:34,508 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34" (1/1) ... [2018-06-26 18:25:34,513 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34" (1/1) ... [2018-06-26 18:25:34,514 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34" (1/1) ... [2018-06-26 18:25:34,515 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:25:34,516 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:25:34,516 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:25:34,516 INFO ]: RCFGBuilder initialized [2018-06-26 18:25:34,518 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34" (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 18:25:34,532 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:25:34,532 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:25:34,532 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:25:34,532 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:25:34,532 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:25:34,532 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 18:25:34,742 INFO ]: Using library mode [2018-06-26 18:25:34,742 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:25:34 BoogieIcfgContainer [2018-06-26 18:25:34,742 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:25:34,744 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:25:34,744 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:25:34,745 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:25:34,746 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:25:34" (1/1) ... [2018-06-26 18:25:34,778 INFO ]: Initial Icfg 13 locations, 16 edges [2018-06-26 18:25:34,780 INFO ]: Using Remove infeasible edges [2018-06-26 18:25:34,780 INFO ]: Using Maximize final states [2018-06-26 18:25:34,780 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:25:34,781 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:25:34,782 INFO ]: Using Remove sink states [2018-06-26 18:25:34,783 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:25:34,783 INFO ]: Using Use SBE [2018-06-26 18:25:34,798 INFO ]: SBE split 0 edges [2018-06-26 18:25:34,814 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-26 18:25:34,816 INFO ]: 0 new accepting states [2018-06-26 18:25:34,834 INFO ]: Removed 7 edges and 3 locations by large block encoding [2018-06-26 18:25:34,836 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:25:34,837 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:25:34,837 INFO ]: 0 new accepting states [2018-06-26 18:25:34,837 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:25:34,838 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:25:34,838 INFO ]: Encoded RCFG 8 locations, 10 edges [2018-06-26 18:25:34,839 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:25:34 BasicIcfg [2018-06-26 18:25:34,839 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:25:34,839 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:25:34,839 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:25:34,842 INFO ]: TraceAbstraction initialized [2018-06-26 18:25:34,842 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:25:34" (1/4) ... [2018-06-26 18:25:34,843 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49013e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:25:34, skipping insertion in model container [2018-06-26 18:25:34,843 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:34" (2/4) ... [2018-06-26 18:25:34,844 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49013e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:25:34, skipping insertion in model container [2018-06-26 18:25:34,844 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:25:34" (3/4) ... [2018-06-26 18:25:34,844 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49013e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:25:34, skipping insertion in model container [2018-06-26 18:25:34,844 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:25:34" (4/4) ... [2018-06-26 18:25:34,846 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:25:34,853 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:25:34,860 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:25:34,899 INFO ]: Using default assertion order modulation [2018-06-26 18:25:34,899 INFO ]: Interprodecural is true [2018-06-26 18:25:34,899 INFO ]: Hoare is false [2018-06-26 18:25:34,899 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:25:34,899 INFO ]: Backedges is TWOTRACK [2018-06-26 18:25:34,899 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:25:34,899 INFO ]: Difference is false [2018-06-26 18:25:34,899 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:25:34,899 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:25:34,912 INFO ]: Start isEmpty. Operand 8 states. [2018-06-26 18:25:34,929 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:25:34,929 INFO ]: Found error trace [2018-06-26 18:25:34,930 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:25:34,930 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:34,934 INFO ]: Analyzing trace with hash 33742116, now seen corresponding path program 1 times [2018-06-26 18:25:34,936 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:34,936 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:34,969 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:34,969 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:34,969 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:34,999 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:35,046 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:25:35,048 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:25:35,048 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:25:35,049 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:25:35,059 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:25:35,059 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:25:35,061 INFO ]: Start difference. First operand 8 states. Second operand 3 states. [2018-06-26 18:25:35,192 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:35,192 INFO ]: Finished difference Result 13 states and 17 transitions. [2018-06-26 18:25:35,192 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:25:35,193 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:25:35,193 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:35,201 INFO ]: With dead ends: 13 [2018-06-26 18:25:35,201 INFO ]: Without dead ends: 13 [2018-06-26 18:25:35,203 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 18:25:35,215 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-26 18:25:35,246 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-26 18:25:35,249 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-26 18:25:35,250 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2018-06-26 18:25:35,251 INFO ]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 5 [2018-06-26 18:25:35,253 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:35,253 INFO ]: Abstraction has 13 states and 17 transitions. [2018-06-26 18:25:35,253 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:25:35,253 INFO ]: Start isEmpty. Operand 13 states and 17 transitions. [2018-06-26 18:25:35,254 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:25:35,254 INFO ]: Found error trace [2018-06-26 18:25:35,254 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:25:35,254 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:35,254 INFO ]: Analyzing trace with hash 33801698, now seen corresponding path program 1 times [2018-06-26 18:25:35,254 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:35,254 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:35,255 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:35,255 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:35,255 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:35,266 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:35,341 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:25:35,341 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:25:35,341 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:25:35,342 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:25:35,342 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:25:35,342 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:25:35,343 INFO ]: Start difference. First operand 13 states and 17 transitions. Second operand 3 states. [2018-06-26 18:25:35,386 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:35,386 INFO ]: Finished difference Result 19 states and 25 transitions. [2018-06-26 18:25:35,387 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:25:35,387 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:25:35,387 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:35,388 INFO ]: With dead ends: 19 [2018-06-26 18:25:35,388 INFO ]: Without dead ends: 19 [2018-06-26 18:25:35,389 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 18:25:35,389 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-26 18:25:35,394 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-06-26 18:25:35,394 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-26 18:25:35,395 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2018-06-26 18:25:35,395 INFO ]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 5 [2018-06-26 18:25:35,395 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:35,395 INFO ]: Abstraction has 15 states and 19 transitions. [2018-06-26 18:25:35,395 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:25:35,395 INFO ]: Start isEmpty. Operand 15 states and 19 transitions. [2018-06-26 18:25:35,396 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-26 18:25:35,396 INFO ]: Found error trace [2018-06-26 18:25:35,397 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:25:35,397 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:35,397 INFO ]: Analyzing trace with hash -192063106, now seen corresponding path program 1 times [2018-06-26 18:25:35,397 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:35,397 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:35,398 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:35,398 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:35,398 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:35,420 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:35,580 INFO ]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:25:35,580 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:25:35,580 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:25:35,587 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:35,628 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:35,637 INFO ]: Computing forward predicates... [2018-06-26 18:25:35,801 INFO ]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:25:35,833 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:25:35,833 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-06-26 18:25:35,833 INFO ]: Interpolant automaton has 9 states [2018-06-26 18:25:35,833 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-26 18:25:35,834 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-26 18:25:35,834 INFO ]: Start difference. First operand 15 states and 19 transitions. Second operand 9 states. [2018-06-26 18:25:36,303 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:36,303 INFO ]: Finished difference Result 31 states and 47 transitions. [2018-06-26 18:25:36,304 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-26 18:25:36,304 INFO ]: Start accepts. Automaton has 9 states. Word has length 11 [2018-06-26 18:25:36,304 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:36,307 INFO ]: With dead ends: 31 [2018-06-26 18:25:36,307 INFO ]: Without dead ends: 31 [2018-06-26 18:25:36,307 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-06-26 18:25:36,307 INFO ]: Start minimizeSevpa. Operand 31 states. [2018-06-26 18:25:36,314 INFO ]: Finished minimizeSevpa. Reduced states from 31 to 23. [2018-06-26 18:25:36,314 INFO ]: Start removeUnreachable. Operand 23 states. [2018-06-26 18:25:36,315 INFO ]: Finished removeUnreachable. Reduced from 23 states to 23 states and 33 transitions. [2018-06-26 18:25:36,315 INFO ]: Start accepts. Automaton has 23 states and 33 transitions. Word has length 11 [2018-06-26 18:25:36,315 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:36,315 INFO ]: Abstraction has 23 states and 33 transitions. [2018-06-26 18:25:36,315 INFO ]: Interpolant automaton has 9 states. [2018-06-26 18:25:36,315 INFO ]: Start isEmpty. Operand 23 states and 33 transitions. [2018-06-26 18:25:36,316 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-26 18:25:36,318 INFO ]: Found error trace [2018-06-26 18:25:36,318 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2018-06-26 18:25:36,318 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:36,318 INFO ]: Analyzing trace with hash 597870050, now seen corresponding path program 2 times [2018-06-26 18:25:36,318 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:36,318 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:36,319 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:36,319 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:36,319 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:36,338 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:36,577 INFO ]: Checked inductivity of 18 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-26 18:25:36,577 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:25:36,577 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:25:36,586 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-26 18:25:36,606 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-26 18:25:36,606 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:36,608 INFO ]: Computing forward predicates... [2018-06-26 18:25:37,190 INFO ]: Checked inductivity of 18 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-26 18:25:37,213 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:25:37,213 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 20 [2018-06-26 18:25:37,213 INFO ]: Interpolant automaton has 20 states [2018-06-26 18:25:37,213 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-26 18:25:37,214 INFO ]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2018-06-26 18:25:37,214 INFO ]: Start difference. First operand 23 states and 33 transitions. Second operand 20 states. [2018-06-26 18:25:39,614 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:39,614 INFO ]: Finished difference Result 88 states and 163 transitions. [2018-06-26 18:25:39,614 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-06-26 18:25:39,614 INFO ]: Start accepts. Automaton has 20 states. Word has length 17 [2018-06-26 18:25:39,614 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:39,617 INFO ]: With dead ends: 88 [2018-06-26 18:25:39,617 INFO ]: Without dead ends: 65 [2018-06-26 18:25:39,619 INFO ]: 0 DeclaredPredicates, 93 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=845, Invalid=4411, Unknown=0, NotChecked=0, Total=5256 [2018-06-26 18:25:39,619 INFO ]: Start minimizeSevpa. Operand 65 states. [2018-06-26 18:25:39,632 INFO ]: Finished minimizeSevpa. Reduced states from 65 to 36. [2018-06-26 18:25:39,632 INFO ]: Start removeUnreachable. Operand 36 states. [2018-06-26 18:25:39,634 INFO ]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2018-06-26 18:25:39,634 INFO ]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17 [2018-06-26 18:25:39,634 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:39,634 INFO ]: Abstraction has 36 states and 56 transitions. [2018-06-26 18:25:39,634 INFO ]: Interpolant automaton has 20 states. [2018-06-26 18:25:39,634 INFO ]: Start isEmpty. Operand 36 states and 56 transitions. [2018-06-26 18:25:39,635 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-26 18:25:39,635 INFO ]: Found error trace [2018-06-26 18:25:39,635 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2018-06-26 18:25:39,636 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:39,636 INFO ]: Analyzing trace with hash -1935095782, now seen corresponding path program 3 times [2018-06-26 18:25:39,636 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:39,636 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:39,637 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:39,637 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-26 18:25:39,637 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:39,650 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:39,733 INFO ]: Checked inductivity of 18 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-26 18:25:39,733 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:25:39,733 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:25:39,739 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-26 18:25:39,767 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-26 18:25:39,767 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:39,769 INFO ]: Computing forward predicates... [2018-06-26 18:25:39,919 INFO ]: Checked inductivity of 18 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-26 18:25:39,938 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:25:39,938 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2018-06-26 18:25:39,939 INFO ]: Interpolant automaton has 12 states [2018-06-26 18:25:39,939 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-26 18:25:39,939 INFO ]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-06-26 18:25:39,939 INFO ]: Start difference. First operand 36 states and 56 transitions. Second operand 12 states. [2018-06-26 18:25:40,048 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:40,049 INFO ]: Finished difference Result 62 states and 97 transitions. [2018-06-26 18:25:40,051 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-26 18:25:40,051 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-26 18:25:40,051 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:40,052 INFO ]: With dead ends: 62 [2018-06-26 18:25:40,052 INFO ]: Without dead ends: 62 [2018-06-26 18:25:40,052 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2018-06-26 18:25:40,053 INFO ]: Start minimizeSevpa. Operand 62 states. [2018-06-26 18:25:40,062 INFO ]: Finished minimizeSevpa. Reduced states from 62 to 40. [2018-06-26 18:25:40,062 INFO ]: Start removeUnreachable. Operand 40 states. [2018-06-26 18:25:40,064 INFO ]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2018-06-26 18:25:40,064 INFO ]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 17 [2018-06-26 18:25:40,064 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:40,064 INFO ]: Abstraction has 40 states and 66 transitions. [2018-06-26 18:25:40,064 INFO ]: Interpolant automaton has 12 states. [2018-06-26 18:25:40,064 INFO ]: Start isEmpty. Operand 40 states and 66 transitions. [2018-06-26 18:25:40,066 INFO ]: Finished isEmpty. Found accepting run of length 24 [2018-06-26 18:25:40,066 INFO ]: Found error trace [2018-06-26 18:25:40,066 INFO ]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2018-06-26 18:25:40,066 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:40,067 INFO ]: Analyzing trace with hash -1908026954, now seen corresponding path program 4 times [2018-06-26 18:25:40,067 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:40,067 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:40,067 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:40,067 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-26 18:25:40,067 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:40,087 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:40,191 INFO ]: Checked inductivity of 39 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-06-26 18:25:40,191 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:25:40,191 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:25:40,206 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-26 18:25:40,223 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-26 18:25:40,223 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:40,226 INFO ]: Computing forward predicates... [2018-06-26 18:25:40,441 INFO ]: Checked inductivity of 39 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-06-26 18:25:40,464 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:25:40,464 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 18 [2018-06-26 18:25:40,464 INFO ]: Interpolant automaton has 18 states [2018-06-26 18:25:40,464 INFO ]: Constructing interpolant automaton starting with 18 interpolants. [2018-06-26 18:25:40,464 INFO ]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-06-26 18:25:40,465 INFO ]: Start difference. First operand 40 states and 66 transitions. Second operand 18 states. [2018-06-26 18:25:40,715 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:40,715 INFO ]: Finished difference Result 51 states and 74 transitions. [2018-06-26 18:25:40,716 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-06-26 18:25:40,716 INFO ]: Start accepts. Automaton has 18 states. Word has length 23 [2018-06-26 18:25:40,716 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:40,716 INFO ]: With dead ends: 51 [2018-06-26 18:25:40,716 INFO ]: Without dead ends: 0 [2018-06-26 18:25:40,716 INFO ]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-06-26 18:25:40,716 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:25:40,717 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:25:40,717 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:25:40,717 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:25:40,717 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-06-26 18:25:40,717 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:40,717 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:25:40,717 INFO ]: Interpolant automaton has 18 states. [2018-06-26 18:25:40,717 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:25:40,717 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:25:40,719 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:25:40,721 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:25:40 BasicIcfg [2018-06-26 18:25:40,721 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:25:40,721 INFO ]: Toolchain (without parser) took 6304.98 ms. Allocated memory was 303.6 MB in the beginning and 382.7 MB in the end (delta: 79.2 MB). Free memory was 257.9 MB in the beginning and 336.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 314.6 kB. Max. memory is 3.6 GB. [2018-06-26 18:25:40,723 INFO ]: SmtParser took 0.04 ms. Allocated memory is still 303.6 MB. Free memory is still 266.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:25:40,723 INFO ]: ChcToBoogie took 57.07 ms. Allocated memory is still 303.6 MB. Free memory was 257.9 MB in the beginning and 255.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:40,724 INFO ]: Boogie Preprocessor took 35.20 ms. Allocated memory is still 303.6 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:40,724 INFO ]: RCFGBuilder took 226.96 ms. Allocated memory is still 303.6 MB. Free memory was 253.9 MB in the beginning and 248.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:40,725 INFO ]: BlockEncodingV2 took 94.41 ms. Allocated memory is still 303.6 MB. Free memory was 248.0 MB in the beginning and 244.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:40,725 INFO ]: TraceAbstraction took 5881.14 ms. Allocated memory was 303.6 MB in the beginning and 382.7 MB in the end (delta: 79.2 MB). Free memory was 244.0 MB in the beginning and 336.8 MB in the end (delta: -92.8 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:25:40,729 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 13 locations, 16 edges - StatisticsResult: Encoded RCFG 8 locations, 10 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.04 ms. Allocated memory is still 303.6 MB. Free memory is still 266.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 57.07 ms. Allocated memory is still 303.6 MB. Free memory was 257.9 MB in the beginning and 255.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 35.20 ms. Allocated memory is still 303.6 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 226.96 ms. Allocated memory is still 303.6 MB. Free memory was 253.9 MB in the beginning and 248.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 94.41 ms. Allocated memory is still 303.6 MB. Free memory was 248.0 MB in the beginning and 244.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 5881.14 ms. Allocated memory was 303.6 MB in the beginning and 382.7 MB in the end (delta: 79.2 MB). Free memory was 244.0 MB in the beginning and 336.8 MB in the end (delta: -92.8 MB). There was no memory consumed. 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, 8 locations, 1 error locations. SAFE Result, 5.8s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 SDtfs, 89 SDslu, 119 SDs, 0 SdLazy, 783 SolverSat, 338 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1534 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=5, 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, 6 MinimizatonAttempts, 63 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 8558 SizeOfPredicates, 45 NumberOfNonLiveVariables, 368 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 80/160 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/mc91_98.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-25-40-741.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mc91_98.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-25-40-741.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mc91_98.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-25-40-741.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mc91_98.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-25-40-741.csv Received shutdown request...