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/termination/alias_partial00.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:37:37,823 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:37:37,825 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:37:37,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:37:37,839 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:37:37,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:37:37,844 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:37:37,846 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:37:37,847 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:37:37,849 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:37:37,850 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:37:37,850 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:37:37,851 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:37:37,852 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:37:37,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:37:37,857 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:37:37,859 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:37:37,872 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:37:37,873 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:37:37,874 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:37:37,875 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:37:37,881 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:37:37,881 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:37:37,881 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:37:37,882 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:37:37,882 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:37:37,883 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:37:37,884 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:37:37,885 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:37:37,885 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:37:37,886 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:37:37,886 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:37:37,887 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:37:37,887 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:37:37,888 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:37:37,889 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 11:37:37,911 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:37:37,911 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:37:37,912 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:37:37,912 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:37:37,913 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:37:37,913 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:37:37,914 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:37:37,914 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:37:37,914 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:37:37,914 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:37:37,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:37:37,915 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:37:37,915 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:37:37,915 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:37:37,915 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:37:37,915 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:37:37,915 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:37:37,916 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:37:37,916 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:37:37,918 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:37:37,918 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:37:37,960 INFO ]: Repository-Root is: /tmp [2018-06-22 11:37:37,971 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:37:37,975 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:37:37,977 INFO ]: Initializing SmtParser... [2018-06-22 11:37:37,977 INFO ]: SmtParser initialized [2018-06-22 11:37:37,978 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/alias_partial00.smt2 [2018-06-22 11:37:37,979 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 11:37:38,076 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/alias_partial00.smt2 unknown [2018-06-22 11:37:38,401 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/alias_partial00.smt2 [2018-06-22 11:37:38,411 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:37:38,417 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:37:38,417 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:37:38,417 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:37:38,418 INFO ]: ChcToBoogie initialized [2018-06-22 11:37:38,421 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:37:38" (1/1) ... [2018-06-22 11:37:38,459 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38 Unit [2018-06-22 11:37:38,459 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:37:38,460 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:37:38,461 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:37:38,461 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:37:38,485 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38" (1/1) ... [2018-06-22 11:37:38,485 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38" (1/1) ... [2018-06-22 11:37:38,494 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38" (1/1) ... [2018-06-22 11:37:38,494 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38" (1/1) ... [2018-06-22 11:37:38,497 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38" (1/1) ... [2018-06-22 11:37:38,503 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38" (1/1) ... [2018-06-22 11:37:38,504 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38" (1/1) ... [2018-06-22 11:37:38,505 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:37:38,506 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:37:38,507 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:37:38,507 INFO ]: RCFGBuilder initialized [2018-06-22 11:37:38,507 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38" (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 11:37:38,515 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:37:38,515 INFO ]: Found specification of procedure False [2018-06-22 11:37:38,515 INFO ]: Found implementation of procedure False [2018-06-22 11:37:38,515 INFO ]: Specification and implementation of procedure failDLRunknownCLN10 given in one single declaration [2018-06-22 11:37:38,515 INFO ]: Found specification of procedure failDLRunknownCLN10 [2018-06-22 11:37:38,515 INFO ]: Found implementation of procedure failDLRunknownCLN10 [2018-06-22 11:37:38,516 INFO ]: Specification and implementation of procedure lambda_1031DLRunknownCLN14 given in one single declaration [2018-06-22 11:37:38,516 INFO ]: Found specification of procedure lambda_1031DLRunknownCLN14 [2018-06-22 11:37:38,516 INFO ]: Found implementation of procedure lambda_1031DLRunknownCLN14 [2018-06-22 11:37:38,516 INFO ]: Specification and implementation of procedure f_1030DLRunknownCLN8 given in one single declaration [2018-06-22 11:37:38,516 INFO ]: Found specification of procedure f_1030DLRunknownCLN8 [2018-06-22 11:37:38,516 INFO ]: Found implementation of procedure f_1030DLRunknownCLN8 [2018-06-22 11:37:38,516 INFO ]: Specification and implementation of procedure main_1035DLRunknownCLN22 given in one single declaration [2018-06-22 11:37:38,516 INFO ]: Found specification of procedure main_1035DLRunknownCLN22 [2018-06-22 11:37:38,516 INFO ]: Found implementation of procedure main_1035DLRunknownCLN22 [2018-06-22 11:37:38,516 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:37:38,516 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:37:38,516 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:37:38,833 INFO ]: Using library mode [2018-06-22 11:37:38,833 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:37:38 BoogieIcfgContainer [2018-06-22 11:37:38,833 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:37:38,835 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:37:38,835 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:37:38,838 INFO ]: TraceAbstraction initialized [2018-06-22 11:37:38,840 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:37:38" (1/3) ... [2018-06-22 11:37:38,842 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664e41f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:37:38, skipping insertion in model container [2018-06-22 11:37:38,842 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:38" (2/3) ... [2018-06-22 11:37:38,842 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664e41f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:37:38, skipping insertion in model container [2018-06-22 11:37:38,842 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:37:38" (3/3) ... [2018-06-22 11:37:38,845 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:37:38,854 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:37:38,861 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:37:38,896 INFO ]: Using default assertion order modulation [2018-06-22 11:37:38,896 INFO ]: Interprodecural is true [2018-06-22 11:37:38,896 INFO ]: Hoare is false [2018-06-22 11:37:38,896 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:37:38,896 INFO ]: Backedges is TWOTRACK [2018-06-22 11:37:38,896 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:37:38,896 INFO ]: Difference is false [2018-06-22 11:37:38,896 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:37:38,896 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:37:38,911 INFO ]: Start isEmpty. Operand 25 states. [2018-06-22 11:37:38,928 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:37:38,928 INFO ]: Found error trace [2018-06-22 11:37:38,930 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:37:38,930 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:37:38,935 INFO ]: Analyzing trace with hash 137735146, now seen corresponding path program 1 times [2018-06-22 11:37:38,937 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:37:38,937 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:37:38,988 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:38,988 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:37:38,988 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:39,018 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:37:39,062 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:37:39,064 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:37:39,064 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:37:39,066 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:37:39,077 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:37:39,077 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:37:39,080 INFO ]: Start difference. First operand 25 states. Second operand 2 states. [2018-06-22 11:37:39,109 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:37:39,109 INFO ]: Finished difference Result 23 states and 24 transitions. [2018-06-22 11:37:39,109 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:37:39,110 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:37:39,111 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:37:39,133 INFO ]: With dead ends: 23 [2018-06-22 11:37:39,134 INFO ]: Without dead ends: 23 [2018-06-22 11:37:39,135 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 11:37:39,155 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-22 11:37:39,186 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-06-22 11:37:39,187 INFO ]: Start removeUnreachable. Operand 23 states. [2018-06-22 11:37:39,188 INFO ]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-06-22 11:37:39,190 INFO ]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2018-06-22 11:37:39,190 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:37:39,190 INFO ]: Abstraction has 23 states and 24 transitions. [2018-06-22 11:37:39,190 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:37:39,190 INFO ]: Start isEmpty. Operand 23 states and 24 transitions. [2018-06-22 11:37:39,193 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:37:39,194 INFO ]: Found error trace [2018-06-22 11:37:39,194 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:37:39,194 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:37:39,194 INFO ]: Analyzing trace with hash 1327428865, now seen corresponding path program 1 times [2018-06-22 11:37:39,194 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:37:39,194 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:37:39,195 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:39,195 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:37:39,195 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:39,221 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:37:39,363 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:37:39,363 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:37:39,364 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:37:39,365 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:37:39,365 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:37:39,365 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:37:39,366 INFO ]: Start difference. First operand 23 states and 24 transitions. Second operand 4 states. [2018-06-22 11:37:39,420 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:37:39,420 INFO ]: Finished difference Result 25 states and 26 transitions. [2018-06-22 11:37:39,421 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:37:39,421 INFO ]: Start accepts. Automaton has 4 states. Word has length 21 [2018-06-22 11:37:39,421 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:37:39,422 INFO ]: With dead ends: 25 [2018-06-22 11:37:39,422 INFO ]: Without dead ends: 25 [2018-06-22 11:37:39,423 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 11:37:39,423 INFO ]: Start minimizeSevpa. Operand 25 states. [2018-06-22 11:37:39,428 INFO ]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-06-22 11:37:39,428 INFO ]: Start removeUnreachable. Operand 25 states. [2018-06-22 11:37:39,429 INFO ]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-06-22 11:37:39,429 INFO ]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 21 [2018-06-22 11:37:39,429 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:37:39,429 INFO ]: Abstraction has 25 states and 26 transitions. [2018-06-22 11:37:39,429 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:37:39,430 INFO ]: Start isEmpty. Operand 25 states and 26 transitions. [2018-06-22 11:37:39,430 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 11:37:39,430 INFO ]: Found error trace [2018-06-22 11:37:39,430 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:37:39,431 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:37:39,431 INFO ]: Analyzing trace with hash -121378141, now seen corresponding path program 1 times [2018-06-22 11:37:39,431 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:37:39,431 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:37:39,431 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:39,431 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:37:39,431 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:39,447 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:37:39,693 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:37:39,693 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:37:39,693 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:37:39,693 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:37:39,694 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:37:39,695 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:37:39,695 INFO ]: Start difference. First operand 25 states and 26 transitions. Second operand 6 states. [2018-06-22 11:37:39,862 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:37:39,863 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-22 11:37:39,863 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:37:39,863 INFO ]: Start accepts. Automaton has 6 states. Word has length 25 [2018-06-22 11:37:39,864 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:37:39,864 INFO ]: With dead ends: 19 [2018-06-22 11:37:39,864 INFO ]: Without dead ends: 0 [2018-06-22 11:37:39,864 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:37:39,864 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:37:39,864 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:37:39,864 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:37:39,864 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:37:39,865 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-06-22 11:37:39,865 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:37:39,865 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:37:39,865 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:37:39,865 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:37:39,865 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:37:39,873 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:37:39 BoogieIcfgContainer [2018-06-22 11:37:39,874 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:37:39,875 INFO ]: Toolchain (without parser) took 1462.91 ms. Allocated memory is still 309.9 MB. Free memory was 260.2 MB in the beginning and 218.4 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:39,876 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.9 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:37:39,877 INFO ]: ChcToBoogie took 41.97 ms. Allocated memory is still 309.9 MB. Free memory was 260.2 MB in the beginning and 258.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:39,878 INFO ]: Boogie Preprocessor took 45.57 ms. Allocated memory is still 309.9 MB. Free memory was 258.3 MB in the beginning and 256.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:39,878 INFO ]: RCFGBuilder took 326.97 ms. Allocated memory is still 309.9 MB. Free memory was 256.3 MB in the beginning and 246.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:39,879 INFO ]: TraceAbstraction took 1038.95 ms. Allocated memory is still 309.9 MB. Free memory was 246.3 MB in the beginning and 218.4 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:39,888 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 309.9 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 41.97 ms. Allocated memory is still 309.9 MB. Free memory was 260.2 MB in the beginning and 258.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 45.57 ms. Allocated memory is still 309.9 MB. Free memory was 258.3 MB in the beginning and 256.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 326.97 ms. Allocated memory is still 309.9 MB. Free memory was 256.3 MB in the beginning and 246.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1038.95 ms. Allocated memory is still 309.9 MB. Free memory was 246.3 MB in the beginning and 218.4 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 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 6 procedures, 25 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 62 SDtfs, 1 SDslu, 89 SDs, 0 SdLazy, 22 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 0.3s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/alias_partial00.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-37-39-908.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/alias_partial00.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-37-39-908.csv Received shutdown request...