java -Xss4m -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_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_4_e2_968_e2_1166.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 16:49:54,901 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 16:49:54,903 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 16:49:54,915 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 16:49:54,915 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 16:49:54,916 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 16:49:54,918 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 16:49:54,922 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 16:49:54,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 16:49:54,927 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 16:49:54,928 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 16:49:54,928 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 16:49:54,929 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 16:49:54,931 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 16:49:54,932 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 16:49:54,933 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 16:49:54,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 16:49:54,936 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 16:49:54,938 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 16:49:54,939 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 16:49:54,940 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 16:49:54,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 16:49:54,942 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 16:49:54,943 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 16:49:54,943 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 16:49:54,944 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 16:49:54,948 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 16:49:54,949 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 16:49:54,950 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 16:49:54,950 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 16:49:54,951 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 16:49:54,952 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 16:49:54,952 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 16:49:54,959 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 16:49:54,960 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 16:49:54,961 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 16:49:54,984 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 16:49:54,984 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 16:49:54,984 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 16:49:54,984 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 16:49:54,985 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 16:49:54,985 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 16:49:54,986 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 16:49:54,986 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 16:49:54,986 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 16:49:54,986 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 16:49:54,986 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 16:49:54,990 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 16:49:54,990 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 16:49:54,991 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 16:49:54,991 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 16:49:54,991 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 16:49:54,991 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 16:49:54,991 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 16:49:54,991 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 16:49:54,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 16:49:54,992 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 16:49:54,993 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 16:49:54,993 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 16:49:55,044 INFO ]: Repository-Root is: /tmp [2018-06-25 16:49:55,062 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 16:49:55,067 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 16:49:55,069 INFO ]: Initializing SmtParser... [2018-06-25 16:49:55,069 INFO ]: SmtParser initialized [2018-06-25 16:49:55,069 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_4_e2_968_e2_1166.smt2 [2018-06-25 16:49:55,071 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 [2018-06-25 16:49:55,163 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_4_e2_968_e2_1166.smt2 unknown [2018-06-25 16:49:55,595 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_4_e2_968_e2_1166.smt2 [2018-06-25 16:49:55,599 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 16:49:55,604 INFO ]: Walking toolchain with 4 elements. [2018-06-25 16:49:55,605 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 16:49:55,605 INFO ]: Initializing ChcToBoogie... [2018-06-25 16:49:55,605 INFO ]: ChcToBoogie initialized [2018-06-25 16:49:55,608 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:49:55" (1/1) ... [2018-06-25 16:49:55,678 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55 Unit [2018-06-25 16:49:55,678 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 16:49:55,679 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 16:49:55,679 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 16:49:55,679 INFO ]: Boogie Preprocessor initialized [2018-06-25 16:49:55,723 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55" (1/1) ... [2018-06-25 16:49:55,723 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55" (1/1) ... [2018-06-25 16:49:55,741 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55" (1/1) ... [2018-06-25 16:49:55,742 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55" (1/1) ... [2018-06-25 16:49:55,757 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55" (1/1) ... [2018-06-25 16:49:55,759 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55" (1/1) ... [2018-06-25 16:49:55,761 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55" (1/1) ... [2018-06-25 16:49:55,764 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 16:49:55,765 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 16:49:55,765 INFO ]: Initializing RCFGBuilder... [2018-06-25 16:49:55,774 INFO ]: RCFGBuilder initialized [2018-06-25 16:49:55,775 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55" (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) [2018-06-25 16:49:55,791 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 16:49:55,791 INFO ]: Found specification of procedure gotoProc [2018-06-25 16:49:55,791 INFO ]: Found implementation of procedure gotoProc [2018-06-25 16:49:55,791 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 16:49:55,791 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 16:49:55,791 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 [2018-06-25 16:49:56,191 INFO ]: Using library mode [2018-06-25 16:49:56,192 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:49:56 BoogieIcfgContainer [2018-06-25 16:49:56,192 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 16:49:56,195 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 16:49:56,195 INFO ]: Initializing TraceAbstraction... [2018-06-25 16:49:56,198 INFO ]: TraceAbstraction initialized [2018-06-25 16:49:56,198 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:49:55" (1/3) ... [2018-06-25 16:49:56,199 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc71ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 04:49:56, skipping insertion in model container [2018-06-25 16:49:56,199 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:49:55" (2/3) ... [2018-06-25 16:49:56,199 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc71ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 04:49:56, skipping insertion in model container [2018-06-25 16:49:56,200 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:49:56" (3/3) ... [2018-06-25 16:49:56,201 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 16:49:56,211 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 16:49:56,221 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 16:49:56,280 INFO ]: Using default assertion order modulation [2018-06-25 16:49:56,281 INFO ]: Interprodecural is true [2018-06-25 16:49:56,281 INFO ]: Hoare is false [2018-06-25 16:49:56,281 INFO ]: Compute interpolants for FPandBP [2018-06-25 16:49:56,281 INFO ]: Backedges is TWOTRACK [2018-06-25 16:49:56,281 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 16:49:56,281 INFO ]: Difference is false [2018-06-25 16:49:56,281 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 16:49:56,281 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 16:49:56,299 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 16:49:56,313 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 16:49:56,313 INFO ]: Found error trace [2018-06-25 16:49:56,316 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:49:56,316 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:49:56,321 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 16:49:56,324 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:49:56,325 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:49:56,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:49:56,368 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:49:56,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:49:56,466 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:49:56,593 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:49:56,595 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 16:49:56,595 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 16:49:56,596 INFO ]: Interpolant automaton has 3 states [2018-06-25 16:49:56,611 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 16:49:56,612 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:49:56,615 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 16:49:56,689 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:49:56,689 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 16:49:56,690 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 16:49:56,691 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 16:49:56,691 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:49:56,702 INFO ]: With dead ends: 9 [2018-06-25 16:49:56,703 INFO ]: Without dead ends: 9 [2018-06-25 16:49:56,705 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:49:56,722 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 16:49:56,741 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 16:49:56,743 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 16:49:56,743 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 16:49:56,744 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 16:49:56,745 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:49:56,745 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 16:49:56,745 INFO ]: Interpolant automaton has 3 states. [2018-06-25 16:49:56,745 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 16:49:56,745 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 16:49:56,745 INFO ]: Found error trace [2018-06-25 16:49:56,745 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:49:56,745 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:49:56,745 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 16:49:56,745 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:49:56,745 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:49:56,746 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:49:56,747 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:49:56,747 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:49:56,884 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:49:57,003 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:49:57,003 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:49:57,003 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 [2018-06-25 16:49:57,009 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:49:57,146 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:49:57,157 INFO ]: Computing forward predicates... [2018-06-25 16:49:57,431 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:49:57,466 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:49:57,466 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 16:49:57,466 INFO ]: Interpolant automaton has 6 states [2018-06-25 16:49:57,466 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 16:49:57,466 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-25 16:49:57,467 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 16:49:57,571 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:49:57,571 INFO ]: Finished difference Result 5 states and 5 transitions. [2018-06-25 16:49:57,572 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 16:49:57,572 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 16:49:57,572 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:49:57,572 INFO ]: With dead ends: 5 [2018-06-25 16:49:57,572 INFO ]: Without dead ends: 0 [2018-06-25 16:49:57,573 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-25 16:49:57,573 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 16:49:57,573 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 16:49:57,573 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 16:49:57,573 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 16:49:57,573 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-06-25 16:49:57,573 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:49:57,573 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 16:49:57,573 INFO ]: Interpolant automaton has 6 states. [2018-06-25 16:49:57,573 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 16:49:57,573 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 16:49:57,578 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 04:49:57 BoogieIcfgContainer [2018-06-25 16:49:57,578 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 16:49:57,578 INFO ]: Toolchain (without parser) took 1978.93 ms. Allocated memory was 306.7 MB in the beginning and 331.9 MB in the end (delta: 25.2 MB). Free memory was 248.1 MB in the beginning and 259.3 MB in the end (delta: -11.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:49:57,580 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 16:49:57,580 INFO ]: ChcToBoogie took 74.29 ms. Allocated memory is still 306.7 MB. Free memory was 248.1 MB in the beginning and 245.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:49:57,581 INFO ]: Boogie Preprocessor took 84.99 ms. Allocated memory is still 306.7 MB. Free memory was 245.1 MB in the beginning and 244.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-25 16:49:57,581 INFO ]: RCFGBuilder took 427.41 ms. Allocated memory is still 306.7 MB. Free memory was 244.1 MB in the beginning and 212.1 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:49:57,582 INFO ]: TraceAbstraction took 1383.21 ms. Allocated memory was 306.7 MB in the beginning and 331.9 MB in the end (delta: 25.2 MB). Free memory was 212.1 MB in the beginning and 259.3 MB in the end (delta: -47.2 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 16:49:57,585 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 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 74.29 ms. Allocated memory is still 306.7 MB. Free memory was 248.1 MB in the beginning and 245.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 84.99 ms. Allocated memory is still 306.7 MB. Free memory was 245.1 MB in the beginning and 244.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 427.41 ms. Allocated memory is still 306.7 MB. Free memory was 244.1 MB in the beginning and 212.1 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1383.21 ms. Allocated memory was 306.7 MB in the beginning and 331.9 MB in the end (delta: 25.2 MB). Free memory was 212.1 MB in the beginning and 259.3 MB in the end (delta: -47.2 MB). There was no memory consumed. 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 2 procedures, 10 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 11 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 2 NumberOfNonLiveVariables, 495 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/metros_4_e2_968_e2_1166.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_16-49-57-594.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/metros_4_e2_968_e2_1166.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_16-49-57-594.csv Received shutdown request...