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_Goto.epf -i /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:40:35,346 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:40:35,348 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:40:35,360 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:40:35,360 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:40:35,361 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:40:35,362 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:40:35,364 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:40:35,366 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:40:35,367 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:40:35,371 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:40:35,372 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:40:35,373 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:40:35,374 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:40:35,374 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:40:35,378 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:40:35,380 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:40:35,393 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:40:35,394 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:40:35,396 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:40:35,402 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:40:35,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-22 01:40:35,418 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:40:35,442 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:40:35,442 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:40:35,443 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:40:35,443 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:40:35,445 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:40:35,445 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:40:35,445 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:40:35,445 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:40:35,445 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:40:35,446 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:40:35,446 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:40:35,446 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:40:35,446 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:40:35,446 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:40:35,447 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:40:35,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:40:35,451 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:40:35,452 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:40:35,452 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:40:35,506 INFO ]: Repository-Root is: /tmp [2018-06-22 01:40:35,525 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:40:35,529 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:40:35,530 INFO ]: Initializing SmtParser... [2018-06-22 01:40:35,531 INFO ]: SmtParser initialized [2018-06-22 01:40:35,531 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 [2018-06-22 01:40:35,533 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 01:40:35,633 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 unknown [2018-06-22 01:40:35,963 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 [2018-06-22 01:40:35,968 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:40:35,975 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:40:35,976 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:40:35,976 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:40:35,976 INFO ]: ChcToBoogie initialized [2018-06-22 01:40:35,979 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:40:35" (1/1) ... [2018-06-22 01:40:36,051 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36 Unit [2018-06-22 01:40:36,051 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:40:36,052 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:40:36,052 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:40:36,052 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:40:36,074 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36" (1/1) ... [2018-06-22 01:40:36,074 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36" (1/1) ... [2018-06-22 01:40:36,081 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36" (1/1) ... [2018-06-22 01:40:36,081 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36" (1/1) ... [2018-06-22 01:40:36,090 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36" (1/1) ... [2018-06-22 01:40:36,093 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36" (1/1) ... [2018-06-22 01:40:36,095 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36" (1/1) ... [2018-06-22 01:40:36,097 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:40:36,098 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:40:36,098 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:40:36,098 INFO ]: RCFGBuilder initialized [2018-06-22 01:40:36,099 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36" (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 01:40:36,115 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:40:36,116 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:40:36,116 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:40:36,116 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:40:36,116 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:40:36,116 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 01:40:36,616 INFO ]: Using library mode [2018-06-22 01:40:36,619 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:40:36 BoogieIcfgContainer [2018-06-22 01:40:36,619 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:40:36,620 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:40:36,620 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:40:36,627 INFO ]: TraceAbstraction initialized [2018-06-22 01:40:36,627 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:40:35" (1/3) ... [2018-06-22 01:40:36,628 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ef67e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:40:36, skipping insertion in model container [2018-06-22 01:40:36,628 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:36" (2/3) ... [2018-06-22 01:40:36,628 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ef67e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:40:36, skipping insertion in model container [2018-06-22 01:40:36,629 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:40:36" (3/3) ... [2018-06-22 01:40:36,631 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:40:36,641 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:40:36,648 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:40:36,686 INFO ]: Using default assertion order modulation [2018-06-22 01:40:36,687 INFO ]: Interprodecural is true [2018-06-22 01:40:36,687 INFO ]: Hoare is false [2018-06-22 01:40:36,687 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:40:36,687 INFO ]: Backedges is TWOTRACK [2018-06-22 01:40:36,687 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:40:36,687 INFO ]: Difference is false [2018-06-22 01:40:36,687 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:40:36,687 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:40:36,708 INFO ]: Start isEmpty. Operand 27 states. [2018-06-22 01:40:36,721 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 01:40:36,721 INFO ]: Found error trace [2018-06-22 01:40:36,722 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:36,722 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:36,729 INFO ]: Analyzing trace with hash 446959873, now seen corresponding path program 1 times [2018-06-22 01:40:36,732 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:36,732 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:36,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:36,770 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:36,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:36,811 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:36,955 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:40:36,956 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:40:36,957 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:40:36,958 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:36,970 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:36,970 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:36,973 INFO ]: Start difference. First operand 27 states. Second operand 4 states. [2018-06-22 01:40:37,528 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:37,529 INFO ]: Finished difference Result 46 states and 62 transitions. [2018-06-22 01:40:37,530 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:37,531 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-22 01:40:37,531 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:37,542 INFO ]: With dead ends: 46 [2018-06-22 01:40:37,542 INFO ]: Without dead ends: 44 [2018-06-22 01:40:37,544 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 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 01:40:37,562 INFO ]: Start minimizeSevpa. Operand 44 states. [2018-06-22 01:40:37,592 INFO ]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-06-22 01:40:37,593 INFO ]: Start removeUnreachable. Operand 44 states. [2018-06-22 01:40:37,598 INFO ]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2018-06-22 01:40:37,601 INFO ]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 7 [2018-06-22 01:40:37,601 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:37,601 INFO ]: Abstraction has 44 states and 60 transitions. [2018-06-22 01:40:37,601 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:37,602 INFO ]: Start isEmpty. Operand 44 states and 60 transitions. [2018-06-22 01:40:37,603 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 01:40:37,603 INFO ]: Found error trace [2018-06-22 01:40:37,603 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:37,603 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:37,604 INFO ]: Analyzing trace with hash 952281394, now seen corresponding path program 1 times [2018-06-22 01:40:37,604 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:37,604 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:37,605 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:37,605 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:37,605 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:37,611 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:37,686 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:40:37,686 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:40:37,686 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:40:37,688 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:37,688 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:37,688 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:37,688 INFO ]: Start difference. First operand 44 states and 60 transitions. Second operand 4 states. [2018-06-22 01:40:37,943 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:37,943 INFO ]: Finished difference Result 64 states and 88 transitions. [2018-06-22 01:40:37,943 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:37,943 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 01:40:37,943 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:37,945 INFO ]: With dead ends: 64 [2018-06-22 01:40:37,945 INFO ]: Without dead ends: 64 [2018-06-22 01:40:37,946 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 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 01:40:37,947 INFO ]: Start minimizeSevpa. Operand 64 states. [2018-06-22 01:40:37,958 INFO ]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-06-22 01:40:37,958 INFO ]: Start removeUnreachable. Operand 64 states. [2018-06-22 01:40:37,962 INFO ]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2018-06-22 01:40:37,962 INFO ]: Start accepts. Automaton has 64 states and 88 transitions. Word has length 8 [2018-06-22 01:40:37,962 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:37,962 INFO ]: Abstraction has 64 states and 88 transitions. [2018-06-22 01:40:37,962 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:37,962 INFO ]: Start isEmpty. Operand 64 states and 88 transitions. [2018-06-22 01:40:37,965 INFO ]: Finished isEmpty. Found accepting run of length 27 [2018-06-22 01:40:37,965 INFO ]: Found error trace [2018-06-22 01:40:37,965 INFO ]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:37,965 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:37,966 INFO ]: Analyzing trace with hash 1857383780, now seen corresponding path program 1 times [2018-06-22 01:40:37,966 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:37,966 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:37,966 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:37,966 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:37,967 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:37,976 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:38,046 INFO ]: Checked inductivity of 14 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 01:40:38,046 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:38,046 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 01:40:38,057 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:38,119 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:38,128 INFO ]: Computing forward predicates... [2018-06-22 01:40:38,158 INFO ]: Checked inductivity of 14 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 01:40:38,196 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:38,197 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 01:40:38,197 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:38,197 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:38,197 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:38,197 INFO ]: Start difference. First operand 64 states and 88 transitions. Second operand 4 states. [2018-06-22 01:40:38,680 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:38,680 INFO ]: Finished difference Result 84 states and 116 transitions. [2018-06-22 01:40:38,681 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:38,681 INFO ]: Start accepts. Automaton has 4 states. Word has length 26 [2018-06-22 01:40:38,681 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:38,684 INFO ]: With dead ends: 84 [2018-06-22 01:40:38,684 INFO ]: Without dead ends: 84 [2018-06-22 01:40:38,684 INFO ]: 0 DeclaredPredicates, 31 GetRequests, 28 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 01:40:38,685 INFO ]: Start minimizeSevpa. Operand 84 states. [2018-06-22 01:40:38,694 INFO ]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-06-22 01:40:38,695 INFO ]: Start removeUnreachable. Operand 84 states. [2018-06-22 01:40:38,697 INFO ]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2018-06-22 01:40:38,697 INFO ]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 26 [2018-06-22 01:40:38,698 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:38,698 INFO ]: Abstraction has 84 states and 116 transitions. [2018-06-22 01:40:38,698 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:38,698 INFO ]: Start isEmpty. Operand 84 states and 116 transitions. [2018-06-22 01:40:38,702 INFO ]: Finished isEmpty. Found accepting run of length 29 [2018-06-22 01:40:38,702 INFO ]: Found error trace [2018-06-22 01:40:38,702 INFO ]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:38,702 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:38,702 INFO ]: Analyzing trace with hash 989560087, now seen corresponding path program 1 times [2018-06-22 01:40:38,702 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:38,702 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:38,703 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:38,703 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:38,703 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:38,732 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:39,125 INFO ]: Checked inductivity of 14 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 01:40:39,125 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:39,125 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 01:40:39,144 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:39,186 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:39,193 INFO ]: Computing forward predicates... [2018-06-22 01:40:39,607 INFO ]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 01:40:39,638 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-22 01:40:39,639 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2018-06-22 01:40:39,639 INFO ]: Interpolant automaton has 10 states [2018-06-22 01:40:39,639 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 01:40:39,639 INFO ]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-06-22 01:40:39,639 INFO ]: Start difference. First operand 84 states and 116 transitions. Second operand 10 states. [2018-06-22 01:40:43,677 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:43,678 INFO ]: Finished difference Result 176 states and 275 transitions. [2018-06-22 01:40:43,678 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-22 01:40:43,678 INFO ]: Start accepts. Automaton has 10 states. Word has length 28 [2018-06-22 01:40:43,678 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:43,687 INFO ]: With dead ends: 176 [2018-06-22 01:40:43,687 INFO ]: Without dead ends: 157 [2018-06-22 01:40:43,688 INFO ]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2018-06-22 01:40:43,688 INFO ]: Start minimizeSevpa. Operand 157 states. [2018-06-22 01:40:43,744 INFO ]: Finished minimizeSevpa. Reduced states from 157 to 98. [2018-06-22 01:40:43,745 INFO ]: Start removeUnreachable. Operand 98 states. [2018-06-22 01:40:43,751 INFO ]: Finished removeUnreachable. Reduced from 98 states to 98 states and 142 transitions. [2018-06-22 01:40:43,751 INFO ]: Start accepts. Automaton has 98 states and 142 transitions. Word has length 28 [2018-06-22 01:40:43,751 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:43,751 INFO ]: Abstraction has 98 states and 142 transitions. [2018-06-22 01:40:43,751 INFO ]: Interpolant automaton has 10 states. [2018-06-22 01:40:43,751 INFO ]: Start isEmpty. Operand 98 states and 142 transitions. [2018-06-22 01:40:43,763 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 01:40:43,763 INFO ]: Found error trace [2018-06-22 01:40:43,763 INFO ]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:43,763 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:43,763 INFO ]: Analyzing trace with hash -307936964, now seen corresponding path program 1 times [2018-06-22 01:40:43,763 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:43,763 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:43,764 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:43,764 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:43,764 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:43,793 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:43,849 INFO ]: Checked inductivity of 18 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 01:40:43,849 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:43,849 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 01:40:43,875 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:43,907 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:43,909 INFO ]: Computing forward predicates... [2018-06-22 01:40:43,914 INFO ]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 01:40:43,947 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-22 01:40:43,947 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2018-06-22 01:40:43,948 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:43,948 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:43,948 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:43,948 INFO ]: Start difference. First operand 98 states and 142 transitions. Second operand 4 states. [2018-06-22 01:40:44,279 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:44,279 INFO ]: Finished difference Result 116 states and 165 transitions. [2018-06-22 01:40:44,279 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:44,280 INFO ]: Start accepts. Automaton has 4 states. Word has length 29 [2018-06-22 01:40:44,280 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:44,282 INFO ]: With dead ends: 116 [2018-06-22 01:40:44,282 INFO ]: Without dead ends: 98 [2018-06-22 01:40:44,282 INFO ]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 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 01:40:44,282 INFO ]: Start minimizeSevpa. Operand 98 states. [2018-06-22 01:40:44,297 INFO ]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-06-22 01:40:44,297 INFO ]: Start removeUnreachable. Operand 98 states. [2018-06-22 01:40:44,299 INFO ]: Finished removeUnreachable. Reduced from 98 states to 98 states and 138 transitions. [2018-06-22 01:40:44,299 INFO ]: Start accepts. Automaton has 98 states and 138 transitions. Word has length 29 [2018-06-22 01:40:44,299 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:44,299 INFO ]: Abstraction has 98 states and 138 transitions. [2018-06-22 01:40:44,299 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:44,299 INFO ]: Start isEmpty. Operand 98 states and 138 transitions. [2018-06-22 01:40:44,304 INFO ]: Finished isEmpty. Found accepting run of length 58 [2018-06-22 01:40:44,304 INFO ]: Found error trace [2018-06-22 01:40:44,304 INFO ]: trace histogram [6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:44,304 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:44,305 INFO ]: Analyzing trace with hash -1988196254, now seen corresponding path program 1 times [2018-06-22 01:40:44,305 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:44,305 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:44,305 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:44,305 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:44,305 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:44,349 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:44,547 INFO ]: Checked inductivity of 83 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-06-22 01:40:44,547 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:44,547 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 01:40:44,568 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:44,621 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:44,626 INFO ]: Computing forward predicates... [2018-06-22 01:40:45,022 INFO ]: Checked inductivity of 83 backedges. 53 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-06-22 01:40:45,043 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:45,043 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2018-06-22 01:40:45,043 INFO ]: Interpolant automaton has 17 states [2018-06-22 01:40:45,043 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 01:40:45,043 INFO ]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-06-22 01:40:45,043 INFO ]: Start difference. First operand 98 states and 138 transitions. Second operand 17 states. [2018-06-22 01:40:47,246 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:47,246 INFO ]: Finished difference Result 238 states and 471 transitions. [2018-06-22 01:40:47,246 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-22 01:40:47,246 INFO ]: Start accepts. Automaton has 17 states. Word has length 57 [2018-06-22 01:40:47,247 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:47,253 INFO ]: With dead ends: 238 [2018-06-22 01:40:47,253 INFO ]: Without dead ends: 230 [2018-06-22 01:40:47,254 INFO ]: 0 DeclaredPredicates, 87 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=176, Invalid=880, Unknown=0, NotChecked=0, Total=1056 [2018-06-22 01:40:47,254 INFO ]: Start minimizeSevpa. Operand 230 states. [2018-06-22 01:40:47,300 INFO ]: Finished minimizeSevpa. Reduced states from 230 to 120. [2018-06-22 01:40:47,300 INFO ]: Start removeUnreachable. Operand 120 states. [2018-06-22 01:40:47,303 INFO ]: Finished removeUnreachable. Reduced from 120 states to 120 states and 186 transitions. [2018-06-22 01:40:47,303 INFO ]: Start accepts. Automaton has 120 states and 186 transitions. Word has length 57 [2018-06-22 01:40:47,303 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:47,303 INFO ]: Abstraction has 120 states and 186 transitions. [2018-06-22 01:40:47,304 INFO ]: Interpolant automaton has 17 states. [2018-06-22 01:40:47,304 INFO ]: Start isEmpty. Operand 120 states and 186 transitions. [2018-06-22 01:40:47,308 INFO ]: Finished isEmpty. Found accepting run of length 58 [2018-06-22 01:40:47,308 INFO ]: Found error trace [2018-06-22 01:40:47,308 INFO ]: trace histogram [6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:47,308 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:47,309 INFO ]: Analyzing trace with hash 586519642, now seen corresponding path program 1 times [2018-06-22 01:40:47,309 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:47,309 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:47,309 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:47,309 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:47,309 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:47,334 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:47,542 INFO ]: Checked inductivity of 83 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-06-22 01:40:47,542 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:47,542 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 01:40:47,553 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:47,602 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:47,607 INFO ]: Computing forward predicates... [2018-06-22 01:40:47,832 INFO ]: Checked inductivity of 83 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-06-22 01:40:47,858 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-22 01:40:47,858 INFO ]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 14 [2018-06-22 01:40:47,859 INFO ]: Interpolant automaton has 14 states [2018-06-22 01:40:47,859 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 01:40:47,859 INFO ]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-06-22 01:40:47,859 INFO ]: Start difference. First operand 120 states and 186 transitions. Second operand 14 states. [2018-06-22 01:40:48,371 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:48,371 INFO ]: Finished difference Result 137 states and 193 transitions. [2018-06-22 01:40:48,375 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-22 01:40:48,375 INFO ]: Start accepts. Automaton has 14 states. Word has length 57 [2018-06-22 01:40:48,375 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:48,375 INFO ]: With dead ends: 137 [2018-06-22 01:40:48,375 INFO ]: Without dead ends: 0 [2018-06-22 01:40:48,376 INFO ]: 0 DeclaredPredicates, 81 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2018-06-22 01:40:48,376 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:40:48,376 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:40:48,376 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:40:48,376 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:40:48,376 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2018-06-22 01:40:48,376 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:48,377 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:40:48,377 INFO ]: Interpolant automaton has 14 states. [2018-06-22 01:40:48,377 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:40:48,377 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:40:48,382 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:40:48 BoogieIcfgContainer [2018-06-22 01:40:48,382 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:40:48,383 INFO ]: Toolchain (without parser) took 12414.86 ms. Allocated memory was 308.3 MB in the beginning and 382.2 MB in the end (delta: 73.9 MB). Free memory was 258.7 MB in the beginning and 246.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 85.8 MB. Max. memory is 3.6 GB. [2018-06-22 01:40:48,385 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:40:48,385 INFO ]: ChcToBoogie took 75.70 ms. Allocated memory is still 308.3 MB. Free memory was 258.7 MB in the beginning and 255.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:40:48,386 INFO ]: Boogie Preprocessor took 45.16 ms. Allocated memory is still 308.3 MB. Free memory was 255.7 MB in the beginning and 254.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 01:40:48,386 INFO ]: RCFGBuilder took 521.34 ms. Allocated memory is still 308.3 MB. Free memory was 254.7 MB in the beginning and 240.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:40:48,387 INFO ]: TraceAbstraction took 11762.21 ms. Allocated memory was 308.3 MB in the beginning and 382.2 MB in the end (delta: 73.9 MB). Free memory was 240.7 MB in the beginning and 246.8 MB in the end (delta: -6.1 MB). Peak memory consumption was 67.8 MB. Max. memory is 3.6 GB. [2018-06-22 01:40:48,390 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 75.70 ms. Allocated memory is still 308.3 MB. Free memory was 258.7 MB in the beginning and 255.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 45.16 ms. Allocated memory is still 308.3 MB. Free memory was 255.7 MB in the beginning and 254.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 521.34 ms. Allocated memory is still 308.3 MB. Free memory was 254.7 MB in the beginning and 240.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 11762.21 ms. Allocated memory was 308.3 MB in the beginning and 382.2 MB in the end (delta: 73.9 MB). Free memory was 240.7 MB in the beginning and 246.8 MB in the end (delta: -6.1 MB). Peak memory consumption was 67.8 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 2 procedures, 27 locations, 1 error locations. SAFE Result, 11.7s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 8.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 320 SDtfs, 377 SDslu, 1000 SDs, 0 SdLazy, 1780 SolverSat, 231 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 200 SyntacticMatches, 4 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred 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, 7 MinimizatonAttempts, 169 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 409 NumberOfCodeBlocks, 409 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 397 ConstructedInterpolants, 4 QuantifiedInterpolants, 40350 SizeOfPredicates, 31 NumberOfNonLiveVariables, 848 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 386/424 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/bsearch.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-40-48-401.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bsearch.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-40-48-401.csv Received shutdown request...