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/point-location-nr.51.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 17:38:50,967 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 17:38:50,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 17:38:50,982 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 17:38:50,982 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 17:38:50,983 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 17:38:50,984 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 17:38:50,987 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 17:38:50,989 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 17:38:50,989 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 17:38:50,991 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 17:38:50,991 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 17:38:50,992 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 17:38:50,993 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 17:38:50,995 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 17:38:50,996 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 17:38:50,997 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 17:38:50,998 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 17:38:51,009 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 17:38:51,010 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 17:38:51,011 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 17:38:51,012 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 17:38:51,013 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 17:38:51,014 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 17:38:51,018 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 17:38:51,019 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 17:38:51,020 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 17:38:51,020 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 17:38:51,021 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 17:38:51,022 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 17:38:51,023 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 17:38:51,024 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 17:38:51,024 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 17:38:51,024 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 17:38:51,025 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 17:38:51,025 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 17:38:51,026 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 17:38:51,046 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 17:38:51,046 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 17:38:51,047 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 17:38:51,047 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 17:38:51,048 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 17:38:51,048 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 17:38:51,048 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 17:38:51,048 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 17:38:51,048 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 17:38:51,049 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 17:38:51,049 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 17:38:51,049 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 17:38:51,049 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 17:38:51,049 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 17:38:51,049 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 17:38:51,052 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 17:38:51,052 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 17:38:51,052 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 17:38:51,052 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 17:38:51,053 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 17:38:51,053 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 17:38:51,054 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 17:38:51,055 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 17:38:51,102 INFO ]: Repository-Root is: /tmp [2018-06-26 17:38:51,118 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 17:38:51,121 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 17:38:51,123 INFO ]: Initializing SmtParser... [2018-06-26 17:38:51,123 INFO ]: SmtParser initialized [2018-06-26 17:38:51,123 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location-nr.51.smt2 [2018-06-26 17:38:51,124 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 17:38:51,217 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location-nr.51.smt2 unknown [2018-06-26 17:38:51,654 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location-nr.51.smt2 [2018-06-26 17:38:51,664 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 17:38:51,672 INFO ]: Walking toolchain with 5 elements. [2018-06-26 17:38:51,673 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 17:38:51,673 INFO ]: Initializing ChcToBoogie... [2018-06-26 17:38:51,673 INFO ]: ChcToBoogie initialized [2018-06-26 17:38:51,676 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:38:51" (1/1) ... [2018-06-26 17:38:51,776 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51 Unit [2018-06-26 17:38:51,776 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 17:38:51,777 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 17:38:51,777 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 17:38:51,777 INFO ]: Boogie Preprocessor initialized [2018-06-26 17:38:51,812 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51" (1/1) ... [2018-06-26 17:38:51,813 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51" (1/1) ... [2018-06-26 17:38:51,838 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51" (1/1) ... [2018-06-26 17:38:51,838 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51" (1/1) ... [2018-06-26 17:38:51,871 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51" (1/1) ... [2018-06-26 17:38:51,894 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51" (1/1) ... [2018-06-26 17:38:51,897 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51" (1/1) ... [2018-06-26 17:38:51,909 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 17:38:51,910 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 17:38:51,910 INFO ]: Initializing RCFGBuilder... [2018-06-26 17:38:51,910 INFO ]: RCFGBuilder initialized [2018-06-26 17:38:51,911 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51" (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 17:38:51,937 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 17:38:51,937 INFO ]: Found specification of procedure gotoProc [2018-06-26 17:38:51,937 INFO ]: Found implementation of procedure gotoProc [2018-06-26 17:38:51,937 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 17:38:51,937 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 17:38:51,937 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 17:38:53,153 INFO ]: Using library mode [2018-06-26 17:38:53,154 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:38:53 BoogieIcfgContainer [2018-06-26 17:38:53,154 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 17:38:53,155 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 17:38:53,155 INFO ]: Initializing BlockEncodingV2... [2018-06-26 17:38:53,156 INFO ]: BlockEncodingV2 initialized [2018-06-26 17:38:53,156 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:38:53" (1/1) ... [2018-06-26 17:38:53,199 INFO ]: Initial Icfg 144 locations, 280 edges [2018-06-26 17:38:53,204 INFO ]: Using Remove infeasible edges [2018-06-26 17:38:53,204 INFO ]: Using Maximize final states [2018-06-26 17:38:53,205 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 17:38:53,205 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 17:38:53,208 INFO ]: Using Remove sink states [2018-06-26 17:38:53,209 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 17:38:53,209 INFO ]: Using Use SBE [2018-06-26 17:38:53,227 INFO ]: SBE split 0 edges [2018-06-26 17:38:53,237 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-26 17:38:53,241 INFO ]: 0 new accepting states [2018-06-26 17:38:53,756 INFO ]: Removed 47 edges and 7 locations by large block encoding [2018-06-26 17:38:53,759 INFO ]: Removed 6 edges and 3 locations by removing sink states [2018-06-26 17:38:53,765 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 17:38:53,766 INFO ]: 0 new accepting states [2018-06-26 17:38:53,771 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 17:38:53,772 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 17:38:53,777 INFO ]: Encoded RCFG 132 locations, 263 edges [2018-06-26 17:38:53,777 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:38:53 BasicIcfg [2018-06-26 17:38:53,777 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 17:38:53,778 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 17:38:53,778 INFO ]: Initializing TraceAbstraction... [2018-06-26 17:38:53,785 INFO ]: TraceAbstraction initialized [2018-06-26 17:38:53,785 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:38:51" (1/4) ... [2018-06-26 17:38:53,786 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467d2176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 05:38:53, skipping insertion in model container [2018-06-26 17:38:53,786 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:38:51" (2/4) ... [2018-06-26 17:38:53,786 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467d2176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 05:38:53, skipping insertion in model container [2018-06-26 17:38:53,786 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:38:53" (3/4) ... [2018-06-26 17:38:53,786 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467d2176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:38:53, skipping insertion in model container [2018-06-26 17:38:53,786 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:38:53" (4/4) ... [2018-06-26 17:38:53,790 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 17:38:53,800 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 17:38:53,817 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 17:38:53,869 INFO ]: Using default assertion order modulation [2018-06-26 17:38:53,870 INFO ]: Interprodecural is true [2018-06-26 17:38:53,870 INFO ]: Hoare is false [2018-06-26 17:38:53,870 INFO ]: Compute interpolants for FPandBP [2018-06-26 17:38:53,870 INFO ]: Backedges is TWOTRACK [2018-06-26 17:38:53,870 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 17:38:53,870 INFO ]: Difference is false [2018-06-26 17:38:53,870 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 17:38:53,870 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 17:38:53,892 INFO ]: Start isEmpty. Operand 132 states. [2018-06-26 17:38:53,940 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 17:38:53,940 INFO ]: Found error trace [2018-06-26 17:38:53,941 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 17:38:53,941 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:38:53,946 INFO ]: Analyzing trace with hash 175777733, now seen corresponding path program 1 times [2018-06-26 17:38:53,949 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:38:53,949 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:38:53,982 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:38:53,982 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:38:53,982 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:38:54,019 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:38:54,133 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:38:54,137 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:38:54,180 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:38:54,181 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:38:54,194 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:38:54,194 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:38:54,197 INFO ]: Start difference. First operand 132 states. Second operand 3 states. [2018-06-26 17:38:55,948 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:38:55,949 INFO ]: Finished difference Result 261 states and 522 transitions. [2018-06-26 17:38:55,950 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:38:55,951 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 17:38:55,952 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:38:55,996 INFO ]: With dead ends: 261 [2018-06-26 17:38:55,996 INFO ]: Without dead ends: 259 [2018-06-26 17:38:55,998 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 17:38:56,016 INFO ]: Start minimizeSevpa. Operand 259 states. [2018-06-26 17:38:56,141 INFO ]: Finished minimizeSevpa. Reduced states from 259 to 259. [2018-06-26 17:38:56,142 INFO ]: Start removeUnreachable. Operand 259 states. [2018-06-26 17:38:56,164 INFO ]: Finished removeUnreachable. Reduced from 259 states to 259 states and 518 transitions. [2018-06-26 17:38:56,165 INFO ]: Start accepts. Automaton has 259 states and 518 transitions. Word has length 5 [2018-06-26 17:38:56,166 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:38:56,166 INFO ]: Abstraction has 259 states and 518 transitions. [2018-06-26 17:38:56,166 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:38:56,166 INFO ]: Start isEmpty. Operand 259 states and 518 transitions. [2018-06-26 17:38:56,175 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 17:38:56,176 INFO ]: Found error trace [2018-06-26 17:38:56,176 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 17:38:56,176 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:38:56,176 INFO ]: Analyzing trace with hash 175872872, now seen corresponding path program 1 times [2018-06-26 17:38:56,176 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:38:56,176 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:38:56,177 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:38:56,177 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:38:56,177 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:38:56,189 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:38:56,258 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:38:56,258 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:38:56,258 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:38:56,260 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:38:56,260 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:38:56,260 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:38:56,260 INFO ]: Start difference. First operand 259 states and 518 transitions. Second operand 3 states. [2018-06-26 17:38:58,107 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:38:58,107 INFO ]: Finished difference Result 387 states and 776 transitions. [2018-06-26 17:38:58,107 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:38:58,108 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 17:38:58,108 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:38:58,135 INFO ]: With dead ends: 387 [2018-06-26 17:38:58,135 INFO ]: Without dead ends: 387 [2018-06-26 17:38:58,135 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 17:38:58,136 INFO ]: Start minimizeSevpa. Operand 387 states. [2018-06-26 17:38:58,222 INFO ]: Finished minimizeSevpa. Reduced states from 387 to 387. [2018-06-26 17:38:58,223 INFO ]: Start removeUnreachable. Operand 387 states. [2018-06-26 17:38:58,248 INFO ]: Finished removeUnreachable. Reduced from 387 states to 387 states and 776 transitions. [2018-06-26 17:38:58,320 INFO ]: Start accepts. Automaton has 387 states and 776 transitions. Word has length 5 [2018-06-26 17:38:58,321 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:38:58,321 INFO ]: Abstraction has 387 states and 776 transitions. [2018-06-26 17:38:58,321 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:38:58,321 INFO ]: Start isEmpty. Operand 387 states and 776 transitions. [2018-06-26 17:38:58,355 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-26 17:38:58,355 INFO ]: Found error trace [2018-06-26 17:38:58,355 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:38:58,355 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:38:58,356 INFO ]: Analyzing trace with hash 1399520298, now seen corresponding path program 1 times [2018-06-26 17:38:58,356 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:38:58,356 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:38:58,356 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:38:58,356 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:38:58,356 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:38:58,381 INFO ]: Conjunction of SSA is sat [2018-06-26 17:38:58,393 INFO ]: Counterexample might be feasible [2018-06-26 17:38:58,410 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 17:38:58,411 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:38:58 BasicIcfg [2018-06-26 17:38:58,412 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 17:38:58,413 INFO ]: Toolchain (without parser) took 6748.70 ms. Allocated memory was 309.3 MB in the beginning and 393.2 MB in the end (delta: 83.9 MB). Free memory was 256.6 MB in the beginning and 217.5 MB in the end (delta: 39.1 MB). Peak memory consumption was 123.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:38:58,414 INFO ]: SmtParser took 0.05 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 17:38:58,415 INFO ]: ChcToBoogie took 103.48 ms. Allocated memory is still 309.3 MB. Free memory was 255.6 MB in the beginning and 252.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:38:58,415 INFO ]: Boogie Preprocessor took 133.04 ms. Allocated memory is still 309.3 MB. Free memory was 252.6 MB in the beginning and 250.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:38:58,418 INFO ]: RCFGBuilder took 1244.10 ms. Allocated memory was 309.3 MB in the beginning and 328.2 MB in the end (delta: 18.9 MB). Free memory was 250.6 MB in the beginning and 298.0 MB in the end (delta: -47.4 MB). Peak memory consumption was 69.6 MB. Max. memory is 3.6 GB. [2018-06-26 17:38:58,418 INFO ]: BlockEncodingV2 took 622.47 ms. Allocated memory is still 328.2 MB. Free memory was 298.0 MB in the beginning and 271.7 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 3.6 GB. [2018-06-26 17:38:58,419 INFO ]: TraceAbstraction took 4633.21 ms. Allocated memory was 328.2 MB in the beginning and 393.2 MB in the end (delta: 65.0 MB). Free memory was 270.2 MB in the beginning and 217.5 MB in the end (delta: 52.7 MB). Peak memory consumption was 117.7 MB. Max. memory is 3.6 GB. [2018-06-26 17:38:58,425 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 144 locations, 280 edges - StatisticsResult: Encoded RCFG 132 locations, 263 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.05 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 103.48 ms. Allocated memory is still 309.3 MB. Free memory was 255.6 MB in the beginning and 252.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 133.04 ms. Allocated memory is still 309.3 MB. Free memory was 252.6 MB in the beginning and 250.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1244.10 ms. Allocated memory was 309.3 MB in the beginning and 328.2 MB in the end (delta: 18.9 MB). Free memory was 250.6 MB in the beginning and 298.0 MB in the end (delta: -47.4 MB). Peak memory consumption was 69.6 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 622.47 ms. Allocated memory is still 328.2 MB. Free memory was 298.0 MB in the beginning and 271.7 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 4633.21 ms. Allocated memory was 328.2 MB in the beginning and 393.2 MB in the end (delta: 65.0 MB). Free memory was 270.2 MB in the beginning and 217.5 MB in the end (delta: 52.7 MB). Peak memory consumption was 117.7 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, 0, 0); [L0] assume true; [L0] CALL call gotoProc(6, 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, hbv_False_12_Int, hbv_False_13_Int); [L0] COND TRUE gotoSwitch == 6 [L0] hhv_step_lturn_0_Int, hhv_step_lturn_1_Int, hhv_step_lturn_2_Int, hhv_step_lturn_3_Int, hhv_step_lturn_4_Int, hhv_step_lturn_5_Int, hhv_step_lturn_6_Int, hhv_step_lturn_7_Int, hhv_step_lturn_8_Int, hhv_step_lturn_9_Int, hhv_step_lturn_10_Int, hhv_step_lturn_11_Int, hhv_step_lturn_12_Int := gpav_0_Int, gpav_1_Int, gpav_2_Int, gpav_3_Int, gpav_4_Int, gpav_5_Int, gpav_6_Int, gpav_7_Int, gpav_8_Int, gpav_9_Int, gpav_10_Int, gpav_11_Int, gpav_12_Int; [L0] RET call gotoProc(6, 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, hbv_False_12_Int, hbv_False_13_Int); [L0] hhv_combined_lturn_0_Int, hhv_combined_lturn_1_Int, hhv_combined_lturn_2_Int, hhv_combined_lturn_3_Int, hhv_combined_lturn_4_Int, hhv_combined_lturn_5_Int, hhv_combined_lturn_6_Int, hhv_combined_lturn_7_Int, hhv_combined_lturn_8_Int, hhv_combined_lturn_9_Int, hhv_combined_lturn_10_Int, hhv_combined_lturn_11_Int, hhv_combined_lturn_12_Int := 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_12_Int, hbv_False_11_Int, hbv_False_13_Int; [L0] havoc hbv_False_5_Int, hbv_False_6_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_12_Int, hbv_False_1_Int, hbv_False_3_Int, hbv_False_8_Int, hbv_False_13_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_9_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 132 locations, 1 error locations. UNSAFE Result, 4.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 642 SDtfs, 127 SDslu, 194 SDs, 0 SdLazy, 528 SolverSat, 359 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=387occurred 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: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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/point-location-nr.51.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_17-38-58-442.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location-nr.51.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_17-38-58-442.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location-nr.51.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_17-38-58-442.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location-nr.51.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_17-38-58-442.csv Received shutdown request...