java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/hopv/lia/fpice/inductive3.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:25:23,103 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:25:23,105 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:25:23,117 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:25:23,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:25:23,118 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:25:23,119 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:25:23,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:25:23,123 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:25:23,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:25:23,124 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:25:23,124 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:25:23,125 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:25:23,126 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:25:23,127 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:25:23,128 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:25:23,130 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:25:23,132 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:25:23,133 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:25:23,134 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:25:23,135 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:25:23,138 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:25:23,138 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:25:23,138 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:25:23,139 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:25:23,140 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:25:23,141 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:25:23,142 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:25:23,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:25:23,143 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:25:23,144 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:25:23,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:25:23,145 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:25:23,145 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:25:23,146 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:25:23,146 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:25:23,159 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:25:23,160 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:25:23,160 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:25:23,160 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:25:23,161 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:25:23,162 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:25:23,162 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:25:23,162 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:25:23,163 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:25:23,163 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:25:23,163 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:25:23,163 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:25:23,164 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:25:23,164 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:25:23,164 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:25:23,164 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:25:23,165 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:25:23,165 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:25:23,165 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:25:23,167 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:25:23,167 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:25:23,213 INFO ]: Repository-Root is: /tmp [2018-06-22 11:25:23,229 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:25:23,235 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:25:23,237 INFO ]: Initializing SmtParser... [2018-06-22 11:25:23,237 INFO ]: SmtParser initialized [2018-06-22 11:25:23,238 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/fpice/inductive3.smt2 [2018-06-22 11:25:23,239 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 [2018-06-22 11:25:23,331 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/fpice/inductive3.smt2 unknown [2018-06-22 11:25:23,456 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/fpice/inductive3.smt2 [2018-06-22 11:25:23,461 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:25:23,466 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:25:23,467 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:25:23,467 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:25:23,467 INFO ]: ChcToBoogie initialized [2018-06-22 11:25:23,470 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:25:23" (1/1) ... [2018-06-22 11:25:23,511 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23 Unit [2018-06-22 11:25:23,511 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:25:23,512 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:25:23,512 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:25:23,512 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:25:23,536 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23" (1/1) ... [2018-06-22 11:25:23,536 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23" (1/1) ... [2018-06-22 11:25:23,546 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23" (1/1) ... [2018-06-22 11:25:23,546 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23" (1/1) ... [2018-06-22 11:25:23,550 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23" (1/1) ... [2018-06-22 11:25:23,551 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23" (1/1) ... [2018-06-22 11:25:23,552 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23" (1/1) ... [2018-06-22 11:25:23,554 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:25:23,555 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:25:23,555 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:25:23,555 INFO ]: RCFGBuilder initialized [2018-06-22 11:25:23,556 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23" (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 [2018-06-22 11:25:23,573 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:25:23,573 INFO ]: Found specification of procedure False [2018-06-22 11:25:23,573 INFO ]: Found implementation of procedure False [2018-06-22 11:25:23,573 INFO ]: Specification and implementation of procedure fDLRunknownCLN2 given in one single declaration [2018-06-22 11:25:23,573 INFO ]: Found specification of procedure fDLRunknownCLN2 [2018-06-22 11:25:23,573 INFO ]: Found implementation of procedure fDLRunknownCLN2 [2018-06-22 11:25:23,573 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:25:23,573 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:25:23,573 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:25:23,775 INFO ]: Using library mode [2018-06-22 11:25:23,775 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:25:23 BoogieIcfgContainer [2018-06-22 11:25:23,776 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:25:23,777 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:25:23,777 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:25:23,781 INFO ]: TraceAbstraction initialized [2018-06-22 11:25:23,781 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:25:23" (1/3) ... [2018-06-22 11:25:23,782 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f2c6e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:25:23, skipping insertion in model container [2018-06-22 11:25:23,782 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:25:23" (2/3) ... [2018-06-22 11:25:23,782 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f2c6e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:25:23, skipping insertion in model container [2018-06-22 11:25:23,782 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:25:23" (3/3) ... [2018-06-22 11:25:23,785 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:25:23,794 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:25:23,807 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:25:23,856 INFO ]: Using default assertion order modulation [2018-06-22 11:25:23,856 INFO ]: Interprodecural is true [2018-06-22 11:25:23,857 INFO ]: Hoare is false [2018-06-22 11:25:23,857 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:25:23,857 INFO ]: Backedges is TWOTRACK [2018-06-22 11:25:23,857 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:25:23,857 INFO ]: Difference is false [2018-06-22 11:25:23,857 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:25:23,857 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:25:23,874 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 11:25:23,889 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:25:23,889 INFO ]: Found error trace [2018-06-22 11:25:23,890 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:25:23,890 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:25:23,895 INFO ]: Analyzing trace with hash 56897940, now seen corresponding path program 1 times [2018-06-22 11:25:23,898 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:25:23,899 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:25:23,937 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:23,937 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:25:23,938 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:23,954 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:25:23,978 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:25:23,980 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:25:23,980 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:25:23,982 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:25:23,996 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:25:23,996 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:25:23,999 INFO ]: Start difference. First operand 13 states. Second operand 2 states. [2018-06-22 11:25:24,018 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:25:24,018 INFO ]: Finished difference Result 11 states and 13 transitions. [2018-06-22 11:25:24,018 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:25:24,019 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:25:24,020 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:25:24,029 INFO ]: With dead ends: 11 [2018-06-22 11:25:24,029 INFO ]: Without dead ends: 11 [2018-06-22 11:25:24,031 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:25:24,049 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 11:25:24,073 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 11:25:24,074 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 11:25:24,075 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-06-22 11:25:24,076 INFO ]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2018-06-22 11:25:24,076 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:25:24,076 INFO ]: Abstraction has 11 states and 13 transitions. [2018-06-22 11:25:24,076 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:25:24,076 INFO ]: Start isEmpty. Operand 11 states and 13 transitions. [2018-06-22 11:25:24,078 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:25:24,078 INFO ]: Found error trace [2018-06-22 11:25:24,078 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:25:24,078 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:25:24,079 INFO ]: Analyzing trace with hash -494677064, now seen corresponding path program 1 times [2018-06-22 11:25:24,079 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:25:24,079 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:25:24,079 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:24,079 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:25:24,079 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:24,099 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:25:24,270 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:25:24,270 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:25:24,270 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:25:24,272 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:25:24,272 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:25:24,272 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:25:24,273 INFO ]: Start difference. First operand 11 states and 13 transitions. Second operand 4 states. [2018-06-22 11:25:24,346 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:25:24,346 INFO ]: Finished difference Result 13 states and 15 transitions. [2018-06-22 11:25:24,347 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:25:24,347 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:25:24,347 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:25:24,347 INFO ]: With dead ends: 13 [2018-06-22 11:25:24,347 INFO ]: Without dead ends: 10 [2018-06-22 11:25:24,348 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:25:24,348 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 11:25:24,349 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 11:25:24,349 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 11:25:24,349 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2018-06-22 11:25:24,349 INFO ]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2018-06-22 11:25:24,349 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:25:24,349 INFO ]: Abstraction has 10 states and 9 transitions. [2018-06-22 11:25:24,349 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:25:24,349 INFO ]: Start isEmpty. Operand 10 states and 9 transitions. [2018-06-22 11:25:24,350 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:25:24,350 INFO ]: Found error trace [2018-06-22 11:25:24,350 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:25:24,350 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:25:24,350 INFO ]: Analyzing trace with hash -380160460, now seen corresponding path program 1 times [2018-06-22 11:25:24,350 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:25:24,350 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:25:24,351 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:24,351 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:25:24,351 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:25:24,365 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:25:24,405 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:25:24,405 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:25:24,405 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:25:24,405 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:25:24,406 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:25:24,406 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:25:24,406 INFO ]: Start difference. First operand 10 states and 9 transitions. Second operand 4 states. [2018-06-22 11:25:24,412 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:25:24,412 INFO ]: Finished difference Result 6 states and 5 transitions. [2018-06-22 11:25:24,413 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:25:24,413 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:25:24,413 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:25:24,413 INFO ]: With dead ends: 6 [2018-06-22 11:25:24,413 INFO ]: Without dead ends: 0 [2018-06-22 11:25:24,413 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:25:24,413 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:25:24,413 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:25:24,413 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:25:24,413 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:25:24,413 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-06-22 11:25:24,414 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:25:24,414 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:25:24,414 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:25:24,414 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:25:24,414 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:25:24,419 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:25:24 BoogieIcfgContainer [2018-06-22 11:25:24,419 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:25:24,420 INFO ]: Toolchain (without parser) took 958.48 ms. Allocated memory is still 307.2 MB. Free memory was 264.6 MB in the beginning and 234.5 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:24,421 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:25:24,421 INFO ]: ChcToBoogie took 44.07 ms. Allocated memory is still 307.2 MB. Free memory was 263.6 MB in the beginning and 262.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:25:24,421 INFO ]: Boogie Preprocessor took 42.68 ms. Allocated memory is still 307.2 MB. Free memory was 262.6 MB in the beginning and 260.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:24,422 INFO ]: RCFGBuilder took 220.63 ms. Allocated memory is still 307.2 MB. Free memory was 260.6 MB in the beginning and 253.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:24,422 INFO ]: TraceAbstraction took 642.17 ms. Allocated memory is still 307.2 MB. Free memory was 253.6 MB in the beginning and 234.5 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:25:24,426 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 44.07 ms. Allocated memory is still 307.2 MB. Free memory was 263.6 MB in the beginning and 262.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * Boogie Preprocessor took 42.68 ms. Allocated memory is still 307.2 MB. Free memory was 262.6 MB in the beginning and 260.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 220.63 ms. Allocated memory is still 307.2 MB. Free memory was 260.6 MB in the beginning and 253.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 642.17 ms. Allocated memory is still 307.2 MB. Free memory was 253.6 MB in the beginning and 234.5 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 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 3 procedures, 13 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 1 SDslu, 21 SDs, 0 SdLazy, 7 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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/inductive3.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-25-24-436.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/inductive3.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-25-24-436.csv Received shutdown request...