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/eldarica-misc/LIA/reve/016b-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:17:21,821 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:17:21,827 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:17:21,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:17:21,839 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:17:21,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:17:21,844 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:17:21,846 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:17:21,847 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:17:21,849 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:17:21,850 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:17:21,850 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:17:21,851 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:17:21,852 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:17:21,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:17:21,857 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:17:21,858 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:17:21,870 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:17:21,872 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:17:21,873 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:17:21,874 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:17:21,876 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:17:21,876 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:17:21,876 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:17:21,877 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:17:21,878 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:17:21,882 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:17:21,883 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:17:21,884 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:17:21,884 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:17:21,885 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:17:21,885 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:17:21,885 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:17:21,890 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:17:21,890 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:17:21,890 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 11:17:21,911 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:17:21,911 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:17:21,911 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:17:21,912 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:17:21,913 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:17:21,913 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:17:21,914 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:17:21,914 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:17:21,914 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:17:21,914 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:17:21,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:17:21,915 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:17:21,915 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:17:21,915 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:17:21,915 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:17:21,915 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:17:21,915 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:17:21,916 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:17:21,916 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:17:21,918 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:17:21,918 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:17:21,955 INFO ]: Repository-Root is: /tmp [2018-06-22 11:17:21,966 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:17:21,969 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:17:21,970 INFO ]: Initializing SmtParser... [2018-06-22 11:17:21,970 INFO ]: SmtParser initialized [2018-06-22 11:17:21,971 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/016b-horn.smt2 [2018-06-22 11:17:21,972 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 11:17:22,064 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/016b-horn.smt2 unknown [2018-06-22 11:17:22,223 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/016b-horn.smt2 [2018-06-22 11:17:22,227 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:17:22,233 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:17:22,233 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:17:22,233 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:17:22,234 INFO ]: ChcToBoogie initialized [2018-06-22 11:17:22,237 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:17:22" (1/1) ... [2018-06-22 11:17:22,279 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22 Unit [2018-06-22 11:17:22,279 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:17:22,280 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:17:22,280 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:17:22,280 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:17:22,302 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22" (1/1) ... [2018-06-22 11:17:22,302 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22" (1/1) ... [2018-06-22 11:17:22,309 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22" (1/1) ... [2018-06-22 11:17:22,309 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22" (1/1) ... [2018-06-22 11:17:22,313 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22" (1/1) ... [2018-06-22 11:17:22,314 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22" (1/1) ... [2018-06-22 11:17:22,315 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22" (1/1) ... [2018-06-22 11:17:22,316 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:17:22,318 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:17:22,318 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:17:22,318 INFO ]: RCFGBuilder initialized [2018-06-22 11:17:22,319 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22" (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) [2018-06-22 11:17:22,332 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:17:22,332 INFO ]: Found specification of procedure False [2018-06-22 11:17:22,332 INFO ]: Found implementation of procedure False [2018-06-22 11:17:22,332 INFO ]: Specification and implementation of procedure INV1 given in one single declaration [2018-06-22 11:17:22,332 INFO ]: Found specification of procedure INV1 [2018-06-22 11:17:22,332 INFO ]: Found implementation of procedure INV1 [2018-06-22 11:17:22,332 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:17:22,332 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:17:22,332 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 [2018-06-22 11:17:22,603 INFO ]: Using library mode [2018-06-22 11:17:22,603 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:17:22 BoogieIcfgContainer [2018-06-22 11:17:22,603 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:17:22,604 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:17:22,604 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:17:22,607 INFO ]: TraceAbstraction initialized [2018-06-22 11:17:22,607 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:17:22" (1/3) ... [2018-06-22 11:17:22,608 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0ac53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:17:22, skipping insertion in model container [2018-06-22 11:17:22,608 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:22" (2/3) ... [2018-06-22 11:17:22,609 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0ac53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:17:22, skipping insertion in model container [2018-06-22 11:17:22,609 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:17:22" (3/3) ... [2018-06-22 11:17:22,610 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:17:22,619 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:17:22,626 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:17:22,659 INFO ]: Using default assertion order modulation [2018-06-22 11:17:22,659 INFO ]: Interprodecural is true [2018-06-22 11:17:22,660 INFO ]: Hoare is false [2018-06-22 11:17:22,660 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:17:22,660 INFO ]: Backedges is TWOTRACK [2018-06-22 11:17:22,660 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:17:22,660 INFO ]: Difference is false [2018-06-22 11:17:22,660 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:17:22,660 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:17:22,674 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:17:22,686 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:17:22,686 INFO ]: Found error trace [2018-06-22 11:17:22,687 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:22,687 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:22,692 INFO ]: Analyzing trace with hash -1409059775, now seen corresponding path program 1 times [2018-06-22 11:17:22,694 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:22,694 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:22,729 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:22,729 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:22,729 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:22,770 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:22,907 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:17:22,910 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:22,910 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:17:22,912 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:22,927 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:22,927 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:22,929 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:17:23,056 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:23,057 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:17:23,057 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:17:23,058 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:17:23,058 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:23,067 INFO ]: With dead ends: 15 [2018-06-22 11:17:23,067 INFO ]: Without dead ends: 15 [2018-06-22 11:17:23,069 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 11:17:23,081 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:17:23,108 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:17:23,109 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:17:23,110 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:17:23,111 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:17:23,114 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:23,114 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:17:23,114 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:23,114 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:17:23,115 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:17:23,115 INFO ]: Found error trace [2018-06-22 11:17:23,115 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:23,116 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:23,116 INFO ]: Analyzing trace with hash 1397489035, now seen corresponding path program 1 times [2018-06-22 11:17:23,116 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:23,116 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:23,117 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:23,117 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:23,117 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:23,137 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:23,500 WARN ]: Spent 201.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 8 [2018-06-22 11:17:23,562 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:23,562 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:23,562 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:17:23,564 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:17:23,564 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:17:23,564 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:17:23,564 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 5 states. [2018-06-22 11:17:23,792 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:23,792 INFO ]: Finished difference Result 19 states and 31 transitions. [2018-06-22 11:17:23,794 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:17:23,794 INFO ]: Start accepts. Automaton has 5 states. Word has length 13 [2018-06-22 11:17:23,794 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:23,795 INFO ]: With dead ends: 19 [2018-06-22 11:17:23,795 INFO ]: Without dead ends: 19 [2018-06-22 11:17:23,795 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:17:23,796 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:17:23,802 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-06-22 11:17:23,802 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:17:23,805 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:17:23,805 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 13 [2018-06-22 11:17:23,805 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:23,806 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:17:23,806 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:17:23,806 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:17:23,806 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:17:23,806 INFO ]: Found error trace [2018-06-22 11:17:23,806 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:23,807 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:23,807 INFO ]: Analyzing trace with hash 1152238182, now seen corresponding path program 1 times [2018-06-22 11:17:23,807 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:23,807 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:23,808 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:23,808 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:23,808 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:23,835 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:23,883 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:17:23,883 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:23,883 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:17:23,884 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:23,884 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:23,884 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:23,884 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 4 states. [2018-06-22 11:17:24,146 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:24,146 INFO ]: Finished difference Result 19 states and 30 transitions. [2018-06-22 11:17:24,146 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:17:24,146 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:17:24,146 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:24,147 INFO ]: With dead ends: 19 [2018-06-22 11:17:24,147 INFO ]: Without dead ends: 19 [2018-06-22 11:17:24,148 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 11:17:24,148 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:17:24,154 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-06-22 11:17:24,154 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:17:24,155 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2018-06-22 11:17:24,155 INFO ]: Start accepts. Automaton has 17 states and 25 transitions. Word has length 13 [2018-06-22 11:17:24,155 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:24,155 INFO ]: Abstraction has 17 states and 25 transitions. [2018-06-22 11:17:24,155 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:24,155 INFO ]: Start isEmpty. Operand 17 states and 25 transitions. [2018-06-22 11:17:24,156 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:17:24,156 INFO ]: Found error trace [2018-06-22 11:17:24,156 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:24,156 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:24,156 INFO ]: Analyzing trace with hash 1300014339, now seen corresponding path program 1 times [2018-06-22 11:17:24,156 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:24,156 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:24,158 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:24,158 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:24,158 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:24,167 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:24,202 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:17:24,202 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:24,202 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:17:24,202 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:24,202 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:24,202 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:24,203 INFO ]: Start difference. First operand 17 states and 25 transitions. Second operand 4 states. [2018-06-22 11:17:24,332 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:24,332 INFO ]: Finished difference Result 19 states and 29 transitions. [2018-06-22 11:17:24,332 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:17:24,333 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:17:24,333 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:24,333 INFO ]: With dead ends: 19 [2018-06-22 11:17:24,333 INFO ]: Without dead ends: 19 [2018-06-22 11:17:24,334 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 11:17:24,334 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:17:24,339 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-06-22 11:17:24,339 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:17:24,340 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2018-06-22 11:17:24,340 INFO ]: Start accepts. Automaton has 17 states and 24 transitions. Word has length 13 [2018-06-22 11:17:24,340 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:24,340 INFO ]: Abstraction has 17 states and 24 transitions. [2018-06-22 11:17:24,340 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:24,340 INFO ]: Start isEmpty. Operand 17 states and 24 transitions. [2018-06-22 11:17:24,341 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:17:24,341 INFO ]: Found error trace [2018-06-22 11:17:24,341 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:24,341 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:24,341 INFO ]: Analyzing trace with hash 400296240, now seen corresponding path program 1 times [2018-06-22 11:17:24,341 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:24,341 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:24,342 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:24,342 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:24,342 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:24,354 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:24,440 INFO ]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:24,440 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:17:24,440 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:17:24,447 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:24,471 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:24,480 INFO ]: Computing forward predicates... [2018-06-22 11:17:25,208 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:25,234 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:17:25,234 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2018-06-22 11:17:25,234 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:17:25,234 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:17:25,235 INFO ]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:17:25,235 INFO ]: Start difference. First operand 17 states and 24 transitions. Second operand 12 states. [2018-06-22 11:17:25,537 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:25,537 INFO ]: Finished difference Result 21 states and 29 transitions. [2018-06-22 11:17:25,537 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 11:17:25,537 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 11:17:25,538 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:25,538 INFO ]: With dead ends: 21 [2018-06-22 11:17:25,538 INFO ]: Without dead ends: 20 [2018-06-22 11:17:25,539 INFO ]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-06-22 11:17:25,539 INFO ]: Start minimizeSevpa. Operand 20 states. [2018-06-22 11:17:25,542 INFO ]: Finished minimizeSevpa. Reduced states from 20 to 16. [2018-06-22 11:17:25,542 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-22 11:17:25,543 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-06-22 11:17:25,543 INFO ]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 17 [2018-06-22 11:17:25,543 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:25,543 INFO ]: Abstraction has 16 states and 20 transitions. [2018-06-22 11:17:25,543 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:17:25,543 INFO ]: Start isEmpty. Operand 16 states and 20 transitions. [2018-06-22 11:17:25,544 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:17:25,544 INFO ]: Found error trace [2018-06-22 11:17:25,544 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:25,544 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:25,544 INFO ]: Analyzing trace with hash -1645927347, now seen corresponding path program 1 times [2018-06-22 11:17:25,544 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:25,544 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:25,545 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:25,545 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:25,545 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:25,556 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:25,631 INFO ]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:25,632 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:17:25,632 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:17:25,639 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:25,671 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:25,674 INFO ]: Computing forward predicates... [2018-06-22 11:17:25,828 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:25,852 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:17:25,852 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2018-06-22 11:17:25,852 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:17:25,852 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:17:25,852 INFO ]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:17:25,852 INFO ]: Start difference. First operand 16 states and 20 transitions. Second operand 12 states. [2018-06-22 11:17:26,069 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:26,069 INFO ]: Finished difference Result 12 states and 14 transitions. [2018-06-22 11:17:26,069 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:17:26,069 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 11:17:26,070 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:26,070 INFO ]: With dead ends: 12 [2018-06-22 11:17:26,070 INFO ]: Without dead ends: 0 [2018-06-22 11:17:26,070 INFO ]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-06-22 11:17:26,070 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:17:26,070 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:17:26,070 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:17:26,070 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:17:26,070 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 11:17:26,070 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:26,070 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:17:26,070 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:17:26,070 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:17:26,070 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:17:26,074 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:17:26 BoogieIcfgContainer [2018-06-22 11:17:26,074 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:17:26,075 INFO ]: Toolchain (without parser) took 3847.03 ms. Allocated memory was 308.3 MB in the beginning and 326.1 MB in the end (delta: 17.8 MB). Free memory was 264.7 MB in the beginning and 216.9 MB in the end (delta: 47.7 MB). Peak memory consumption was 65.6 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:26,075 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:17:26,076 INFO ]: ChcToBoogie took 46.40 ms. Allocated memory is still 308.3 MB. Free memory was 264.7 MB in the beginning and 262.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:26,076 INFO ]: Boogie Preprocessor took 36.16 ms. Allocated memory is still 308.3 MB. Free memory was 262.7 MB in the beginning and 260.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:26,077 INFO ]: RCFGBuilder took 285.62 ms. Allocated memory is still 308.3 MB. Free memory was 260.7 MB in the beginning and 252.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:26,077 INFO ]: TraceAbstraction took 3469.75 ms. Allocated memory was 308.3 MB in the beginning and 326.1 MB in the end (delta: 17.8 MB). Free memory was 252.7 MB in the beginning and 216.9 MB in the end (delta: 35.8 MB). Peak memory consumption was 53.6 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:26,081 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 46.40 ms. Allocated memory is still 308.3 MB. Free memory was 264.7 MB in the beginning and 262.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 36.16 ms. Allocated memory is still 308.3 MB. Free memory was 262.7 MB in the beginning and 260.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 285.62 ms. Allocated memory is still 308.3 MB. Free memory was 260.7 MB in the beginning and 252.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3469.75 ms. Allocated memory was 308.3 MB in the beginning and 326.1 MB in the end (delta: 17.8 MB). Free memory was 252.7 MB in the beginning and 216.9 MB in the end (delta: 35.8 MB). Peak memory consumption was 53.6 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, 15 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 90 SDtfs, 13 SDslu, 164 SDs, 0 SdLazy, 251 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5748 SizeOfPredicates, 16 NumberOfNonLiveVariables, 214 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 29/45 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/016b-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-17-26-091.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/016b-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-17-26-091.csv Received shutdown request...