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/023-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:21:19,262 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:21:19,263 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:21:19,274 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:21:19,274 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:21:19,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:21:19,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:21:19,280 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:21:19,282 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:21:19,282 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:21:19,283 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:21:19,283 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:21:19,284 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:21:19,287 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:21:19,287 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:21:19,297 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:21:19,299 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:21:19,300 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:21:19,302 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:21:19,303 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:21:19,304 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:21:19,310 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:21:19,311 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:21:19,311 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:21:19,312 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:21:19,312 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:21:19,313 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:21:19,314 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:21:19,319 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:21:19,319 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:21:19,320 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:21:19,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:21:19,321 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:21:19,321 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:21:19,327 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:21:19,327 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 11:21:19,345 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:21:19,346 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:21:19,346 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:21:19,346 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:21:19,347 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:21:19,347 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:21:19,347 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:21:19,348 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:21:19,348 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:21:19,348 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:21:19,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:21:19,348 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:21:19,348 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:21:19,349 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:21:19,352 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:21:19,352 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:21:19,352 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:21:19,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:21:19,353 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:21:19,354 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:21:19,354 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:21:19,399 INFO ]: Repository-Root is: /tmp [2018-06-22 11:21:19,414 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:21:19,420 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:21:19,422 INFO ]: Initializing SmtParser... [2018-06-22 11:21:19,422 INFO ]: SmtParser initialized [2018-06-22 11:21:19,422 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/023-horn.smt2 [2018-06-22 11:21:19,424 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 11:21:19,515 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/023-horn.smt2 unknown [2018-06-22 11:21:19,650 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/023-horn.smt2 [2018-06-22 11:21:19,655 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:21:19,662 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:21:19,662 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:21:19,662 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:21:19,663 INFO ]: ChcToBoogie initialized [2018-06-22 11:21:19,666 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:21:19" (1/1) ... [2018-06-22 11:21:19,709 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19 Unit [2018-06-22 11:21:19,709 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:21:19,710 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:21:19,710 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:21:19,710 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:21:19,731 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19" (1/1) ... [2018-06-22 11:21:19,731 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19" (1/1) ... [2018-06-22 11:21:19,738 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19" (1/1) ... [2018-06-22 11:21:19,738 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19" (1/1) ... [2018-06-22 11:21:19,740 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19" (1/1) ... [2018-06-22 11:21:19,741 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19" (1/1) ... [2018-06-22 11:21:19,745 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19" (1/1) ... [2018-06-22 11:21:19,746 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:21:19,746 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:21:19,746 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:21:19,746 INFO ]: RCFGBuilder initialized [2018-06-22 11:21:19,747 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19" (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 11:21:19,764 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:21:19,764 INFO ]: Found specification of procedure False [2018-06-22 11:21:19,765 INFO ]: Found implementation of procedure False [2018-06-22 11:21:19,765 INFO ]: Specification and implementation of procedure INV1 given in one single declaration [2018-06-22 11:21:19,765 INFO ]: Found specification of procedure INV1 [2018-06-22 11:21:19,765 INFO ]: Found implementation of procedure INV1 [2018-06-22 11:21:19,765 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:21:19,765 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:21:19,765 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 11:21:19,987 INFO ]: Using library mode [2018-06-22 11:21:19,988 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:21:19 BoogieIcfgContainer [2018-06-22 11:21:19,988 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:21:19,989 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:21:19,990 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:21:19,993 INFO ]: TraceAbstraction initialized [2018-06-22 11:21:19,993 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:21:19" (1/3) ... [2018-06-22 11:21:19,994 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5535a81c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:21:19, skipping insertion in model container [2018-06-22 11:21:19,994 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:19" (2/3) ... [2018-06-22 11:21:19,995 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5535a81c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:21:19, skipping insertion in model container [2018-06-22 11:21:19,995 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:21:19" (3/3) ... [2018-06-22 11:21:19,996 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:21:20,007 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:21:20,020 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:21:20,056 INFO ]: Using default assertion order modulation [2018-06-22 11:21:20,056 INFO ]: Interprodecural is true [2018-06-22 11:21:20,056 INFO ]: Hoare is false [2018-06-22 11:21:20,056 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:21:20,056 INFO ]: Backedges is TWOTRACK [2018-06-22 11:21:20,056 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:21:20,056 INFO ]: Difference is false [2018-06-22 11:21:20,056 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:21:20,056 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:21:20,069 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:21:20,081 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:21:20,081 INFO ]: Found error trace [2018-06-22 11:21:20,082 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:20,082 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:20,086 INFO ]: Analyzing trace with hash -1409059775, now seen corresponding path program 1 times [2018-06-22 11:21:20,087 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:20,088 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:20,118 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:20,118 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:20,118 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:20,150 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:20,219 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:21:20,222 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:21:20,223 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:21:20,225 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:21:20,236 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:21:20,236 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:21:20,238 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:21:20,365 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:20,365 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:21:20,366 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:21:20,368 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:21:20,368 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:20,379 INFO ]: With dead ends: 15 [2018-06-22 11:21:20,379 INFO ]: Without dead ends: 15 [2018-06-22 11:21:20,381 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 11:21:20,393 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:21:20,428 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:21:20,429 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:21:20,431 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:21:20,432 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:21:20,433 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:20,433 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:21:20,433 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:21:20,433 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:21:20,435 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:21:20,435 INFO ]: Found error trace [2018-06-22 11:21:20,435 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:20,436 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:20,436 INFO ]: Analyzing trace with hash 1397489035, now seen corresponding path program 1 times [2018-06-22 11:21:20,436 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:20,436 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:20,437 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:20,437 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:20,437 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:20,452 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:20,527 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:21:20,527 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:20,527 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 11:21:20,542 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:20,569 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:20,576 INFO ]: Computing forward predicates... [2018-06-22 11:21:21,094 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:21:21,127 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:21,127 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-22 11:21:21,127 INFO ]: Interpolant automaton has 10 states [2018-06-22 11:21:21,128 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 11:21:21,128 INFO ]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-06-22 11:21:21,128 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 10 states. [2018-06-22 11:21:22,223 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:22,223 INFO ]: Finished difference Result 37 states and 68 transitions. [2018-06-22 11:21:22,223 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-22 11:21:22,223 INFO ]: Start accepts. Automaton has 10 states. Word has length 13 [2018-06-22 11:21:22,223 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:22,225 INFO ]: With dead ends: 37 [2018-06-22 11:21:22,225 INFO ]: Without dead ends: 37 [2018-06-22 11:21:22,226 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2018-06-22 11:21:22,226 INFO ]: Start minimizeSevpa. Operand 37 states. [2018-06-22 11:21:22,241 INFO ]: Finished minimizeSevpa. Reduced states from 37 to 27. [2018-06-22 11:21:22,241 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-22 11:21:22,243 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 46 transitions. [2018-06-22 11:21:22,243 INFO ]: Start accepts. Automaton has 27 states and 46 transitions. Word has length 13 [2018-06-22 11:21:22,243 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:22,243 INFO ]: Abstraction has 27 states and 46 transitions. [2018-06-22 11:21:22,243 INFO ]: Interpolant automaton has 10 states. [2018-06-22 11:21:22,243 INFO ]: Start isEmpty. Operand 27 states and 46 transitions. [2018-06-22 11:21:22,244 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:21:22,245 INFO ]: Found error trace [2018-06-22 11:21:22,245 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:22,245 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:22,245 INFO ]: Analyzing trace with hash -837330219, now seen corresponding path program 2 times [2018-06-22 11:21:22,245 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:22,245 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:22,246 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:22,246 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:22,246 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:22,256 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:22,312 INFO ]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 11:21:22,312 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:22,312 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 11:21:22,323 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:21:22,347 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:21:22,347 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:22,349 INFO ]: Computing forward predicates... [2018-06-22 11:21:22,442 INFO ]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 11:21:22,462 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:22,462 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-22 11:21:22,463 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:21:22,463 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:21:22,463 INFO ]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:21:22,463 INFO ]: Start difference. First operand 27 states and 46 transitions. Second operand 12 states. [2018-06-22 11:21:23,223 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:23,223 INFO ]: Finished difference Result 55 states and 104 transitions. [2018-06-22 11:21:23,225 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-22 11:21:23,225 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 11:21:23,225 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:23,227 INFO ]: With dead ends: 55 [2018-06-22 11:21:23,227 INFO ]: Without dead ends: 55 [2018-06-22 11:21:23,228 INFO ]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=682, Unknown=0, NotChecked=0, Total=870 [2018-06-22 11:21:23,228 INFO ]: Start minimizeSevpa. Operand 55 states. [2018-06-22 11:21:23,247 INFO ]: Finished minimizeSevpa. Reduced states from 55 to 37. [2018-06-22 11:21:23,247 INFO ]: Start removeUnreachable. Operand 37 states. [2018-06-22 11:21:23,250 INFO ]: Finished removeUnreachable. Reduced from 37 states to 37 states and 66 transitions. [2018-06-22 11:21:23,251 INFO ]: Start accepts. Automaton has 37 states and 66 transitions. Word has length 17 [2018-06-22 11:21:23,251 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:23,251 INFO ]: Abstraction has 37 states and 66 transitions. [2018-06-22 11:21:23,251 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:21:23,251 INFO ]: Start isEmpty. Operand 37 states and 66 transitions. [2018-06-22 11:21:23,253 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:21:23,253 INFO ]: Found error trace [2018-06-22 11:21:23,253 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:23,253 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:23,253 INFO ]: Analyzing trace with hash 1910328351, now seen corresponding path program 3 times [2018-06-22 11:21:23,253 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:23,253 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:23,254 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:23,254 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:21:23,254 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:23,267 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:23,333 INFO ]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 11:21:23,334 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:23,334 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:21:23,339 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 11:21:23,353 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-06-22 11:21:23,353 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:23,355 INFO ]: Computing forward predicates... [2018-06-22 11:21:23,380 INFO ]: Checked inductivity of 21 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-06-22 11:21:23,399 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:23,399 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 10 [2018-06-22 11:21:23,400 INFO ]: Interpolant automaton has 10 states [2018-06-22 11:21:23,400 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 11:21:23,400 INFO ]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-06-22 11:21:23,400 INFO ]: Start difference. First operand 37 states and 66 transitions. Second operand 10 states. [2018-06-22 11:21:23,593 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:23,593 INFO ]: Finished difference Result 53 states and 98 transitions. [2018-06-22 11:21:23,594 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 11:21:23,594 INFO ]: Start accepts. Automaton has 10 states. Word has length 21 [2018-06-22 11:21:23,594 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:23,596 INFO ]: With dead ends: 53 [2018-06-22 11:21:23,596 INFO ]: Without dead ends: 53 [2018-06-22 11:21:23,596 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2018-06-22 11:21:23,597 INFO ]: Start minimizeSevpa. Operand 53 states. [2018-06-22 11:21:23,612 INFO ]: Finished minimizeSevpa. Reduced states from 53 to 41. [2018-06-22 11:21:23,612 INFO ]: Start removeUnreachable. Operand 41 states. [2018-06-22 11:21:23,618 INFO ]: Finished removeUnreachable. Reduced from 41 states to 41 states and 74 transitions. [2018-06-22 11:21:23,618 INFO ]: Start accepts. Automaton has 41 states and 74 transitions. Word has length 21 [2018-06-22 11:21:23,619 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:23,619 INFO ]: Abstraction has 41 states and 74 transitions. [2018-06-22 11:21:23,619 INFO ]: Interpolant automaton has 10 states. [2018-06-22 11:21:23,619 INFO ]: Start isEmpty. Operand 41 states and 74 transitions. [2018-06-22 11:21:23,620 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 11:21:23,620 INFO ]: Found error trace [2018-06-22 11:21:23,620 INFO ]: trace histogram [5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:23,620 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:23,620 INFO ]: Analyzing trace with hash 1177198305, now seen corresponding path program 1 times [2018-06-22 11:21:23,620 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:23,620 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:23,622 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:23,622 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:21:23,622 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:23,638 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:23,726 INFO ]: Checked inductivity of 33 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-06-22 11:21:23,726 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:23,726 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:21:23,732 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:23,747 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:23,749 INFO ]: Computing forward predicates... [2018-06-22 11:21:23,765 INFO ]: Checked inductivity of 33 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-06-22 11:21:23,796 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:23,796 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-06-22 11:21:23,796 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:21:23,796 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:21:23,796 INFO ]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:21:23,796 INFO ]: Start difference. First operand 41 states and 74 transitions. Second operand 8 states. [2018-06-22 11:21:23,948 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:23,948 INFO ]: Finished difference Result 60 states and 98 transitions. [2018-06-22 11:21:23,948 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 11:21:23,948 INFO ]: Start accepts. Automaton has 8 states. Word has length 25 [2018-06-22 11:21:23,949 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:23,950 INFO ]: With dead ends: 60 [2018-06-22 11:21:23,950 INFO ]: Without dead ends: 60 [2018-06-22 11:21:23,951 INFO ]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:21:23,951 INFO ]: Start minimizeSevpa. Operand 60 states. [2018-06-22 11:21:23,966 INFO ]: Finished minimizeSevpa. Reduced states from 60 to 50. [2018-06-22 11:21:23,966 INFO ]: Start removeUnreachable. Operand 50 states. [2018-06-22 11:21:23,968 INFO ]: Finished removeUnreachable. Reduced from 50 states to 50 states and 88 transitions. [2018-06-22 11:21:23,968 INFO ]: Start accepts. Automaton has 50 states and 88 transitions. Word has length 25 [2018-06-22 11:21:23,968 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:23,968 INFO ]: Abstraction has 50 states and 88 transitions. [2018-06-22 11:21:23,968 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:21:23,968 INFO ]: Start isEmpty. Operand 50 states and 88 transitions. [2018-06-22 11:21:23,970 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 11:21:23,971 INFO ]: Found error trace [2018-06-22 11:21:23,971 INFO ]: trace histogram [6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:23,971 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:23,971 INFO ]: Analyzing trace with hash -1162816114, now seen corresponding path program 1 times [2018-06-22 11:21:23,971 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:23,971 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:23,972 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:23,972 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:23,972 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:23,985 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:24,074 INFO ]: Checked inductivity of 51 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-22 11:21:24,074 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:24,074 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:21:24,087 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:24,118 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:24,120 INFO ]: Computing forward predicates... [2018-06-22 11:21:24,200 INFO ]: Checked inductivity of 51 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-22 11:21:24,232 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:24,232 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-06-22 11:21:24,232 INFO ]: Interpolant automaton has 10 states [2018-06-22 11:21:24,232 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 11:21:24,232 INFO ]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-06-22 11:21:24,232 INFO ]: Start difference. First operand 50 states and 88 transitions. Second operand 10 states. [2018-06-22 11:21:24,354 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:24,354 INFO ]: Finished difference Result 76 states and 151 transitions. [2018-06-22 11:21:24,355 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 11:21:24,355 INFO ]: Start accepts. Automaton has 10 states. Word has length 29 [2018-06-22 11:21:24,355 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:24,357 INFO ]: With dead ends: 76 [2018-06-22 11:21:24,357 INFO ]: Without dead ends: 76 [2018-06-22 11:21:24,357 INFO ]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2018-06-22 11:21:24,357 INFO ]: Start minimizeSevpa. Operand 76 states. [2018-06-22 11:21:24,372 INFO ]: Finished minimizeSevpa. Reduced states from 76 to 64. [2018-06-22 11:21:24,372 INFO ]: Start removeUnreachable. Operand 64 states. [2018-06-22 11:21:24,374 INFO ]: Finished removeUnreachable. Reduced from 64 states to 64 states and 121 transitions. [2018-06-22 11:21:24,374 INFO ]: Start accepts. Automaton has 64 states and 121 transitions. Word has length 29 [2018-06-22 11:21:24,374 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:24,375 INFO ]: Abstraction has 64 states and 121 transitions. [2018-06-22 11:21:24,375 INFO ]: Interpolant automaton has 10 states. [2018-06-22 11:21:24,375 INFO ]: Start isEmpty. Operand 64 states and 121 transitions. [2018-06-22 11:21:24,377 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-22 11:21:24,377 INFO ]: Found error trace [2018-06-22 11:21:24,377 INFO ]: trace histogram [7, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:24,378 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:24,378 INFO ]: Analyzing trace with hash -1586172840, now seen corresponding path program 2 times [2018-06-22 11:21:24,378 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:24,378 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:24,379 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:24,379 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:24,379 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:24,393 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:24,541 INFO ]: Checked inductivity of 73 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-06-22 11:21:24,541 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:24,541 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:21:24,549 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:21:24,572 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:21:24,573 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:24,575 INFO ]: Computing forward predicates... [2018-06-22 11:21:24,743 INFO ]: Checked inductivity of 73 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-06-22 11:21:24,773 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:24,773 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2018-06-22 11:21:24,774 INFO ]: Interpolant automaton has 19 states [2018-06-22 11:21:24,774 INFO ]: Constructing interpolant automaton starting with 19 interpolants. [2018-06-22 11:21:24,774 INFO ]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-06-22 11:21:24,774 INFO ]: Start difference. First operand 64 states and 121 transitions. Second operand 19 states. [2018-06-22 11:21:25,422 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:25,422 INFO ]: Finished difference Result 67 states and 116 transitions. [2018-06-22 11:21:25,422 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-06-22 11:21:25,422 INFO ]: Start accepts. Automaton has 19 states. Word has length 33 [2018-06-22 11:21:25,423 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:25,424 INFO ]: With dead ends: 67 [2018-06-22 11:21:25,424 INFO ]: Without dead ends: 67 [2018-06-22 11:21:25,424 INFO ]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=223, Invalid=899, Unknown=0, NotChecked=0, Total=1122 [2018-06-22 11:21:25,424 INFO ]: Start minimizeSevpa. Operand 67 states. [2018-06-22 11:21:25,433 INFO ]: Finished minimizeSevpa. Reduced states from 67 to 51. [2018-06-22 11:21:25,433 INFO ]: Start removeUnreachable. Operand 51 states. [2018-06-22 11:21:25,434 INFO ]: Finished removeUnreachable. Reduced from 51 states to 51 states and 88 transitions. [2018-06-22 11:21:25,435 INFO ]: Start accepts. Automaton has 51 states and 88 transitions. Word has length 33 [2018-06-22 11:21:25,435 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:25,435 INFO ]: Abstraction has 51 states and 88 transitions. [2018-06-22 11:21:25,435 INFO ]: Interpolant automaton has 19 states. [2018-06-22 11:21:25,435 INFO ]: Start isEmpty. Operand 51 states and 88 transitions. [2018-06-22 11:21:25,437 INFO ]: Finished isEmpty. Found accepting run of length 42 [2018-06-22 11:21:25,437 INFO ]: Found error trace [2018-06-22 11:21:25,437 INFO ]: trace histogram [9, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:25,437 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:25,437 INFO ]: Analyzing trace with hash 633482084, now seen corresponding path program 1 times [2018-06-22 11:21:25,437 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:25,437 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:25,438 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:25,438 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:21:25,438 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:25,448 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:25,516 INFO ]: Checked inductivity of 123 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-06-22 11:21:25,516 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:25,516 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:21:25,522 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:25,550 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:25,552 INFO ]: Computing forward predicates... [2018-06-22 11:21:25,570 INFO ]: Checked inductivity of 123 backedges. 42 proven. 5 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-06-22 11:21:25,589 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:25,589 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 6 [2018-06-22 11:21:25,590 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:21:25,590 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:21:25,590 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:21:25,590 INFO ]: Start difference. First operand 51 states and 88 transitions. Second operand 6 states. [2018-06-22 11:21:25,676 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:25,676 INFO ]: Finished difference Result 51 states and 72 transitions. [2018-06-22 11:21:25,676 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:21:25,676 INFO ]: Start accepts. Automaton has 6 states. Word has length 41 [2018-06-22 11:21:25,677 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:25,677 INFO ]: With dead ends: 51 [2018-06-22 11:21:25,677 INFO ]: Without dead ends: 38 [2018-06-22 11:21:25,677 INFO ]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:21:25,677 INFO ]: Start minimizeSevpa. Operand 38 states. [2018-06-22 11:21:25,682 INFO ]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-06-22 11:21:25,682 INFO ]: Start removeUnreachable. Operand 38 states. [2018-06-22 11:21:25,683 INFO ]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-06-22 11:21:25,683 INFO ]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 41 [2018-06-22 11:21:25,684 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:25,684 INFO ]: Abstraction has 38 states and 52 transitions. [2018-06-22 11:21:25,684 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:21:25,684 INFO ]: Start isEmpty. Operand 38 states and 52 transitions. [2018-06-22 11:21:25,685 INFO ]: Finished isEmpty. Found accepting run of length 42 [2018-06-22 11:21:25,685 INFO ]: Found error trace [2018-06-22 11:21:25,685 INFO ]: trace histogram [9, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:25,685 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:25,685 INFO ]: Analyzing trace with hash -1024424951, now seen corresponding path program 2 times [2018-06-22 11:21:25,685 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:25,685 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:25,686 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:25,686 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:25,686 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:25,699 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:25,792 INFO ]: Checked inductivity of 129 backedges. 16 proven. 56 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-06-22 11:21:25,792 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:25,792 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:21:25,797 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:21:25,840 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:21:25,840 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:25,844 INFO ]: Computing forward predicates... [2018-06-22 11:21:26,096 INFO ]: Checked inductivity of 129 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-06-22 11:21:26,115 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:26,115 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2018-06-22 11:21:26,115 INFO ]: Interpolant automaton has 13 states [2018-06-22 11:21:26,116 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 11:21:26,116 INFO ]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-06-22 11:21:26,116 INFO ]: Start difference. First operand 38 states and 52 transitions. Second operand 13 states. [2018-06-22 11:21:26,300 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:26,300 INFO ]: Finished difference Result 51 states and 71 transitions. [2018-06-22 11:21:26,301 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-22 11:21:26,301 INFO ]: Start accepts. Automaton has 13 states. Word has length 41 [2018-06-22 11:21:26,301 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:26,302 INFO ]: With dead ends: 51 [2018-06-22 11:21:26,302 INFO ]: Without dead ends: 48 [2018-06-22 11:21:26,302 INFO ]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=295, Unknown=0, NotChecked=0, Total=420 [2018-06-22 11:21:26,302 INFO ]: Start minimizeSevpa. Operand 48 states. [2018-06-22 11:21:26,307 INFO ]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-06-22 11:21:26,308 INFO ]: Start removeUnreachable. Operand 48 states. [2018-06-22 11:21:26,309 INFO ]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2018-06-22 11:21:26,309 INFO ]: Start accepts. Automaton has 48 states and 66 transitions. Word has length 41 [2018-06-22 11:21:26,309 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:26,309 INFO ]: Abstraction has 48 states and 66 transitions. [2018-06-22 11:21:26,309 INFO ]: Interpolant automaton has 13 states. [2018-06-22 11:21:26,309 INFO ]: Start isEmpty. Operand 48 states and 66 transitions. [2018-06-22 11:21:26,311 INFO ]: Finished isEmpty. Found accepting run of length 46 [2018-06-22 11:21:26,311 INFO ]: Found error trace [2018-06-22 11:21:26,311 INFO ]: trace histogram [10, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:26,311 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:26,311 INFO ]: Analyzing trace with hash -544921418, now seen corresponding path program 3 times [2018-06-22 11:21:26,311 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:26,311 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:26,312 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:26,312 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:21:26,312 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:26,332 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:26,487 INFO ]: Checked inductivity of 163 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-06-22 11:21:26,487 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:26,487 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:21:26,493 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 11:21:26,505 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 11:21:26,505 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:26,508 INFO ]: Computing forward predicates... [2018-06-22 11:21:26,589 INFO ]: Checked inductivity of 163 backedges. 34 proven. 7 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2018-06-22 11:21:26,621 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:26,621 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6] total 18 [2018-06-22 11:21:26,621 INFO ]: Interpolant automaton has 18 states [2018-06-22 11:21:26,621 INFO ]: Constructing interpolant automaton starting with 18 interpolants. [2018-06-22 11:21:26,621 INFO ]: CoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-06-22 11:21:26,622 INFO ]: Start difference. First operand 48 states and 66 transitions. Second operand 18 states. [2018-06-22 11:21:27,011 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:27,011 INFO ]: Finished difference Result 62 states and 96 transitions. [2018-06-22 11:21:27,012 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-22 11:21:27,012 INFO ]: Start accepts. Automaton has 18 states. Word has length 45 [2018-06-22 11:21:27,012 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:27,012 INFO ]: With dead ends: 62 [2018-06-22 11:21:27,012 INFO ]: Without dead ends: 0 [2018-06-22 11:21:27,012 INFO ]: 0 DeclaredPredicates, 83 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=286, Invalid=644, Unknown=0, NotChecked=0, Total=930 [2018-06-22 11:21:27,012 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:21:27,012 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:21:27,013 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:21:27,013 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:21:27,013 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2018-06-22 11:21:27,013 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:27,013 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:21:27,013 INFO ]: Interpolant automaton has 18 states. [2018-06-22 11:21:27,013 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:21:27,013 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:21:27,017 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:21:27 BoogieIcfgContainer [2018-06-22 11:21:27,017 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:21:27,018 INFO ]: Toolchain (without parser) took 7361.79 ms. Allocated memory was 306.7 MB in the beginning and 379.6 MB in the end (delta: 72.9 MB). Free memory was 264.2 MB in the beginning and 262.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 75.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:21:27,019 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:21:27,019 INFO ]: ChcToBoogie took 46.95 ms. Allocated memory is still 306.7 MB. Free memory was 263.2 MB in the beginning and 261.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:21:27,020 INFO ]: Boogie Preprocessor took 35.77 ms. Allocated memory is still 306.7 MB. Free memory was 261.2 MB in the beginning and 260.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:21:27,020 INFO ]: RCFGBuilder took 241.78 ms. Allocated memory is still 306.7 MB. Free memory was 260.2 MB in the beginning and 253.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:21:27,021 INFO ]: TraceAbstraction took 7027.38 ms. Allocated memory was 306.7 MB in the beginning and 379.6 MB in the end (delta: 72.9 MB). Free memory was 253.2 MB in the beginning and 262.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 64.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:21:27,024 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 46.95 ms. Allocated memory is still 306.7 MB. Free memory was 263.2 MB in the beginning and 261.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 35.77 ms. Allocated memory is still 306.7 MB. Free memory was 261.2 MB in the beginning and 260.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 241.78 ms. Allocated memory is still 306.7 MB. Free memory was 260.2 MB in the beginning and 253.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 7027.38 ms. Allocated memory was 306.7 MB in the beginning and 379.6 MB in the end (delta: 72.9 MB). Free memory was 253.2 MB in the beginning and 262.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 64.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. SAFE Result, 6.9s OverallTime, 10 OverallIterations, 10 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 160 SDtfs, 114 SDslu, 565 SDs, 0 SdLazy, 1092 SolverSat, 347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 279 SyntacticMatches, 3 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=6, 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 78 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 539 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 37000 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1023 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 793/1212 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/023-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-21-27-045.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/023-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-21-27-045.csv Received shutdown request...