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/007b-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:11:15,797 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:11:15,800 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:11:15,812 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:11:15,813 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:11:15,814 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:11:15,815 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:11:15,818 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:11:15,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:11:15,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:11:15,823 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:11:15,823 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:11:15,831 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:11:15,832 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:11:15,833 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:11:15,834 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:11:15,837 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:11:15,839 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:11:15,843 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:11:15,844 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:11:15,845 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:11:15,848 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:11:15,848 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:11:15,849 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:11:15,849 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:11:15,850 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:11:15,853 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:11:15,853 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:11:15,854 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:11:15,855 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:11:15,855 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:11:15,860 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:11:15,860 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:11:15,861 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:11:15,862 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:11:15,862 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 11:11:15,887 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:11:15,887 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:11:15,887 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:11:15,887 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:11:15,888 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:11:15,889 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:11:15,889 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:11:15,889 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:11:15,889 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:11:15,889 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:11:15,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:11:15,891 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:11:15,891 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:11:15,891 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:11:15,891 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:11:15,892 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:11:15,892 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:11:15,892 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:11:15,892 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:11:15,893 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:11:15,895 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:11:15,941 INFO ]: Repository-Root is: /tmp [2018-06-22 11:11:15,961 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:11:15,967 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:11:15,968 INFO ]: Initializing SmtParser... [2018-06-22 11:11:15,969 INFO ]: SmtParser initialized [2018-06-22 11:11:15,970 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/007b-horn.smt2 [2018-06-22 11:11:15,971 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 11:11:16,062 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/007b-horn.smt2 unknown [2018-06-22 11:11:16,245 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/007b-horn.smt2 [2018-06-22 11:11:16,256 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:11:16,264 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:11:16,265 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:11:16,265 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:11:16,265 INFO ]: ChcToBoogie initialized [2018-06-22 11:11:16,269 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:11:16" (1/1) ... [2018-06-22 11:11:16,318 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16 Unit [2018-06-22 11:11:16,319 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:11:16,321 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:11:16,321 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:11:16,321 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:11:16,347 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16" (1/1) ... [2018-06-22 11:11:16,347 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16" (1/1) ... [2018-06-22 11:11:16,355 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16" (1/1) ... [2018-06-22 11:11:16,355 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16" (1/1) ... [2018-06-22 11:11:16,358 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16" (1/1) ... [2018-06-22 11:11:16,360 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16" (1/1) ... [2018-06-22 11:11:16,361 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16" (1/1) ... [2018-06-22 11:11:16,362 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:11:16,364 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:11:16,364 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:11:16,364 INFO ]: RCFGBuilder initialized [2018-06-22 11:11:16,365 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16" (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 11:11:16,382 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:11:16,382 INFO ]: Found specification of procedure False [2018-06-22 11:11:16,382 INFO ]: Found implementation of procedure False [2018-06-22 11:11:16,382 INFO ]: Specification and implementation of procedure INV1 given in one single declaration [2018-06-22 11:11:16,382 INFO ]: Found specification of procedure INV1 [2018-06-22 11:11:16,382 INFO ]: Found implementation of procedure INV1 [2018-06-22 11:11:16,382 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:11:16,382 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:11:16,382 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 11:11:16,638 INFO ]: Using library mode [2018-06-22 11:11:16,639 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:11:16 BoogieIcfgContainer [2018-06-22 11:11:16,639 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:11:16,646 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:11:16,646 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:11:16,649 INFO ]: TraceAbstraction initialized [2018-06-22 11:11:16,650 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:11:16" (1/3) ... [2018-06-22 11:11:16,653 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748ce886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:11:16, skipping insertion in model container [2018-06-22 11:11:16,653 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:11:16" (2/3) ... [2018-06-22 11:11:16,653 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748ce886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:11:16, skipping insertion in model container [2018-06-22 11:11:16,654 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:11:16" (3/3) ... [2018-06-22 11:11:16,661 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:11:16,672 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:11:16,680 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:11:16,729 INFO ]: Using default assertion order modulation [2018-06-22 11:11:16,729 INFO ]: Interprodecural is true [2018-06-22 11:11:16,729 INFO ]: Hoare is false [2018-06-22 11:11:16,729 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:11:16,729 INFO ]: Backedges is TWOTRACK [2018-06-22 11:11:16,729 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:11:16,729 INFO ]: Difference is false [2018-06-22 11:11:16,729 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:11:16,730 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:11:16,745 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:11:16,758 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:11:16,758 INFO ]: Found error trace [2018-06-22 11:11:16,760 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:11:16,760 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:11:16,767 INFO ]: Analyzing trace with hash -1409059775, now seen corresponding path program 1 times [2018-06-22 11:11:16,769 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:11:16,770 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:11:16,821 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:16,821 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:11:16,821 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:16,876 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:11:16,955 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:11:16,957 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:11:16,958 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:11:16,960 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:11:16,973 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:11:16,973 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:11:16,975 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:11:17,113 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:11:17,116 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:11:17,117 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:11:17,119 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:11:17,119 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:11:17,132 INFO ]: With dead ends: 15 [2018-06-22 11:11:17,133 INFO ]: Without dead ends: 15 [2018-06-22 11:11:17,134 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 11:11:17,147 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:11:17,183 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:11:17,183 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:11:17,184 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:11:17,185 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:11:17,186 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:11:17,186 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:11:17,186 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:11:17,186 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:11:17,188 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:11:17,188 INFO ]: Found error trace [2018-06-22 11:11:17,188 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:11:17,188 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:11:17,188 INFO ]: Analyzing trace with hash 1152238182, now seen corresponding path program 1 times [2018-06-22 11:11:17,188 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:11:17,188 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:11:17,189 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:17,189 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:11:17,190 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:17,205 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:11:17,326 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:11:17,326 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:11:17,326 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 11:11:17,333 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:11:17,367 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:11:17,373 INFO ]: Computing forward predicates... [2018-06-22 11:11:18,150 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:11:18,182 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:11:18,182 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-22 11:11:18,183 INFO ]: Interpolant automaton has 10 states [2018-06-22 11:11:18,183 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 11:11:18,183 INFO ]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-06-22 11:11:18,184 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 10 states. [2018-06-22 11:11:20,065 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:11:20,065 INFO ]: Finished difference Result 37 states and 68 transitions. [2018-06-22 11:11:20,066 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-22 11:11:20,066 INFO ]: Start accepts. Automaton has 10 states. Word has length 13 [2018-06-22 11:11:20,067 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:11:20,068 INFO ]: With dead ends: 37 [2018-06-22 11:11:20,068 INFO ]: Without dead ends: 37 [2018-06-22 11:11:20,070 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2018-06-22 11:11:20,072 INFO ]: Start minimizeSevpa. Operand 37 states. [2018-06-22 11:11:20,086 INFO ]: Finished minimizeSevpa. Reduced states from 37 to 27. [2018-06-22 11:11:20,086 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-22 11:11:20,087 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 46 transitions. [2018-06-22 11:11:20,088 INFO ]: Start accepts. Automaton has 27 states and 46 transitions. Word has length 13 [2018-06-22 11:11:20,088 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:11:20,088 INFO ]: Abstraction has 27 states and 46 transitions. [2018-06-22 11:11:20,088 INFO ]: Interpolant automaton has 10 states. [2018-06-22 11:11:20,088 INFO ]: Start isEmpty. Operand 27 states and 46 transitions. [2018-06-22 11:11:20,089 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:11:20,089 INFO ]: Found error trace [2018-06-22 11:11:20,090 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:11:20,090 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:11:20,090 INFO ]: Analyzing trace with hash 937427787, now seen corresponding path program 2 times [2018-06-22 11:11:20,090 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:11:20,090 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:11:20,091 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:20,091 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:11:20,091 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:20,113 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:11:20,310 INFO ]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 11:11:20,311 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:11:20,311 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:11:20,311 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:11:20,311 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:11:20,311 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:11:20,311 INFO ]: Start difference. First operand 27 states and 46 transitions. Second operand 5 states. [2018-06-22 11:11:20,445 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:11:20,445 INFO ]: Finished difference Result 35 states and 63 transitions. [2018-06-22 11:11:20,445 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:11:20,445 INFO ]: Start accepts. Automaton has 5 states. Word has length 17 [2018-06-22 11:11:20,445 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:11:20,447 INFO ]: With dead ends: 35 [2018-06-22 11:11:20,447 INFO ]: Without dead ends: 35 [2018-06-22 11:11:20,447 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:11:20,448 INFO ]: Start minimizeSevpa. Operand 35 states. [2018-06-22 11:11:20,458 INFO ]: Finished minimizeSevpa. Reduced states from 35 to 29. [2018-06-22 11:11:20,458 INFO ]: Start removeUnreachable. Operand 29 states. [2018-06-22 11:11:20,459 INFO ]: Finished removeUnreachable. Reduced from 29 states to 29 states and 50 transitions. [2018-06-22 11:11:20,459 INFO ]: Start accepts. Automaton has 29 states and 50 transitions. Word has length 17 [2018-06-22 11:11:20,459 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:11:20,459 INFO ]: Abstraction has 29 states and 50 transitions. [2018-06-22 11:11:20,459 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:11:20,459 INFO ]: Start isEmpty. Operand 29 states and 50 transitions. [2018-06-22 11:11:20,461 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:11:20,461 INFO ]: Found error trace [2018-06-22 11:11:20,461 INFO ]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:11:20,461 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:11:20,462 INFO ]: Analyzing trace with hash -538495081, now seen corresponding path program 1 times [2018-06-22 11:11:20,462 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:11:20,462 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:11:20,462 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:20,463 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:11:20,463 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:20,475 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:11:20,513 INFO ]: Checked inductivity of 19 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-06-22 11:11:20,513 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:11:20,513 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 11:11:20,522 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:11:20,545 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:11:20,547 INFO ]: Computing forward predicates... [2018-06-22 11:11:20,557 INFO ]: Checked inductivity of 19 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-06-22 11:11:20,579 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:11:20,580 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 11:11:20,580 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:11:20,580 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:11:20,580 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:11:20,580 INFO ]: Start difference. First operand 29 states and 50 transitions. Second operand 4 states. [2018-06-22 11:11:20,620 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:11:20,620 INFO ]: Finished difference Result 38 states and 68 transitions. [2018-06-22 11:11:20,620 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:11:20,620 INFO ]: Start accepts. Automaton has 4 states. Word has length 21 [2018-06-22 11:11:20,621 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:11:20,622 INFO ]: With dead ends: 38 [2018-06-22 11:11:20,622 INFO ]: Without dead ends: 38 [2018-06-22 11:11:20,622 INFO ]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:11:20,623 INFO ]: Start minimizeSevpa. Operand 38 states. [2018-06-22 11:11:20,632 INFO ]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-06-22 11:11:20,632 INFO ]: Start removeUnreachable. Operand 38 states. [2018-06-22 11:11:20,634 INFO ]: Finished removeUnreachable. Reduced from 38 states to 38 states and 68 transitions. [2018-06-22 11:11:20,634 INFO ]: Start accepts. Automaton has 38 states and 68 transitions. Word has length 21 [2018-06-22 11:11:20,634 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:11:20,634 INFO ]: Abstraction has 38 states and 68 transitions. [2018-06-22 11:11:20,634 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:11:20,634 INFO ]: Start isEmpty. Operand 38 states and 68 transitions. [2018-06-22 11:11:20,636 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:11:20,636 INFO ]: Found error trace [2018-06-22 11:11:20,636 INFO ]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:11:20,636 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:11:20,637 INFO ]: Analyzing trace with hash -98067827, now seen corresponding path program 1 times [2018-06-22 11:11:20,637 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:11:20,637 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:11:20,638 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:20,638 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:11:20,638 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:20,654 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:11:20,944 INFO ]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 11:11:20,944 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:11:20,944 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:11:20,944 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:11:20,945 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:11:20,945 INFO ]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:11:20,945 INFO ]: Start difference. First operand 38 states and 68 transitions. Second operand 7 states. [2018-06-22 11:11:21,255 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:11:21,255 INFO ]: Finished difference Result 52 states and 92 transitions. [2018-06-22 11:11:21,255 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 11:11:21,255 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 11:11:21,256 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:11:21,257 INFO ]: With dead ends: 52 [2018-06-22 11:11:21,257 INFO ]: Without dead ends: 52 [2018-06-22 11:11:21,258 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:11:21,258 INFO ]: Start minimizeSevpa. Operand 52 states. [2018-06-22 11:11:21,268 INFO ]: Finished minimizeSevpa. Reduced states from 52 to 40. [2018-06-22 11:11:21,268 INFO ]: Start removeUnreachable. Operand 40 states. [2018-06-22 11:11:21,270 INFO ]: Finished removeUnreachable. Reduced from 40 states to 40 states and 70 transitions. [2018-06-22 11:11:21,270 INFO ]: Start accepts. Automaton has 40 states and 70 transitions. Word has length 21 [2018-06-22 11:11:21,270 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:11:21,270 INFO ]: Abstraction has 40 states and 70 transitions. [2018-06-22 11:11:21,270 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:11:21,270 INFO ]: Start isEmpty. Operand 40 states and 70 transitions. [2018-06-22 11:11:21,272 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:11:21,272 INFO ]: Found error trace [2018-06-22 11:11:21,272 INFO ]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:11:21,272 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:11:21,272 INFO ]: Analyzing trace with hash -1944211691, now seen corresponding path program 1 times [2018-06-22 11:11:21,272 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:11:21,272 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:11:21,273 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:21,273 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:11:21,273 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:21,294 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:11:21,382 INFO ]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 11:11:21,382 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:11:21,382 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:11:21,382 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:11:21,382 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:11:21,382 INFO ]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:11:21,383 INFO ]: Start difference. First operand 40 states and 70 transitions. Second operand 7 states. [2018-06-22 11:11:21,702 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:11:21,702 INFO ]: Finished difference Result 41 states and 59 transitions. [2018-06-22 11:11:21,702 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 11:11:21,703 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 11:11:21,703 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:11:21,704 INFO ]: With dead ends: 41 [2018-06-22 11:11:21,704 INFO ]: Without dead ends: 29 [2018-06-22 11:11:21,704 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:11:21,704 INFO ]: Start minimizeSevpa. Operand 29 states. [2018-06-22 11:11:21,709 INFO ]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-06-22 11:11:21,709 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-22 11:11:21,710 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2018-06-22 11:11:21,710 INFO ]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 21 [2018-06-22 11:11:21,710 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:11:21,710 INFO ]: Abstraction has 27 states and 36 transitions. [2018-06-22 11:11:21,710 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:11:21,710 INFO ]: Start isEmpty. Operand 27 states and 36 transitions. [2018-06-22 11:11:21,711 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:11:21,711 INFO ]: Found error trace [2018-06-22 11:11:21,711 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:11:21,711 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:11:21,711 INFO ]: Analyzing trace with hash -1270057230, now seen corresponding path program 1 times [2018-06-22 11:11:21,711 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:11:21,711 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:11:21,712 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:21,712 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:11:21,712 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:11:21,718 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:11:21,869 INFO ]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-06-22 11:11:21,869 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:11:21,869 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:11:21,869 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:11:21,869 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:11:21,869 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:11:21,869 INFO ]: Start difference. First operand 27 states and 36 transitions. Second operand 4 states. [2018-06-22 11:11:21,920 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:11:21,920 INFO ]: Finished difference Result 19 states and 25 transitions. [2018-06-22 11:11:21,920 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:11:21,920 INFO ]: Start accepts. Automaton has 4 states. Word has length 21 [2018-06-22 11:11:21,920 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:11:21,920 INFO ]: With dead ends: 19 [2018-06-22 11:11:21,921 INFO ]: Without dead ends: 0 [2018-06-22 11:11:21,921 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:11:21,921 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:11:21,921 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:11:21,921 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:11:21,921 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:11:21,921 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-06-22 11:11:21,921 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:11:21,921 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:11:21,921 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:11:21,921 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:11:21,921 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:11:21,931 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:11:21 BoogieIcfgContainer [2018-06-22 11:11:21,931 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:11:21,933 INFO ]: Toolchain (without parser) took 5675.96 ms. Allocated memory was 304.6 MB in the beginning and 325.6 MB in the end (delta: 21.0 MB). Free memory was 261.0 MB in the beginning and 173.1 MB in the end (delta: 87.9 MB). Peak memory consumption was 108.9 MB. Max. memory is 3.6 GB. [2018-06-22 11:11:21,934 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 304.6 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:11:21,935 INFO ]: ChcToBoogie took 55.72 ms. Allocated memory is still 304.6 MB. Free memory is still 259.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:11:21,936 INFO ]: Boogie Preprocessor took 41.78 ms. Allocated memory is still 304.6 MB. Free memory was 259.0 MB in the beginning and 257.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:11:21,937 INFO ]: RCFGBuilder took 275.01 ms. Allocated memory is still 304.6 MB. Free memory was 257.0 MB in the beginning and 249.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:11:21,938 INFO ]: TraceAbstraction took 5285.45 ms. Allocated memory was 304.6 MB in the beginning and 325.6 MB in the end (delta: 21.0 MB). Free memory was 249.0 MB in the beginning and 173.1 MB in the end (delta: 75.9 MB). Peak memory consumption was 96.9 MB. Max. memory is 3.6 GB. [2018-06-22 11:11:21,941 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 304.6 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 55.72 ms. Allocated memory is still 304.6 MB. Free memory is still 259.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * Boogie Preprocessor took 41.78 ms. Allocated memory is still 304.6 MB. Free memory was 259.0 MB in the beginning and 257.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 275.01 ms. Allocated memory is still 304.6 MB. Free memory was 257.0 MB in the beginning and 249.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 5285.45 ms. Allocated memory was 304.6 MB in the beginning and 325.6 MB in the end (delta: 21.0 MB). Free memory was 249.0 MB in the beginning and 173.1 MB in the end (delta: 75.9 MB). Peak memory consumption was 96.9 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 3 procedures, 15 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 123 SDtfs, 38 SDslu, 189 SDs, 0 SdLazy, 306 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 148 ConstructedInterpolants, 2 QuantifiedInterpolants, 6104 SizeOfPredicates, 3 NumberOfNonLiveVariables, 234 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 104/110 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/007b-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-11-21-959.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/007b-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-11-21-959.csv Received shutdown request...