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/vmt-chc-benchmarks/cav12/array_max-4.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 04:14:23,037 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 04:14:23,040 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 04:14:23,052 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 04:14:23,052 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 04:14:23,055 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 04:14:23,057 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 04:14:23,058 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 04:14:23,060 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 04:14:23,061 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 04:14:23,062 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 04:14:23,063 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 04:14:23,063 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 04:14:23,064 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 04:14:23,068 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 04:14:23,069 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 04:14:23,071 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 04:14:23,075 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 04:14:23,076 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 04:14:23,077 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 04:14:23,078 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 04:14:23,080 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 04:14:23,081 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 04:14:23,081 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 04:14:23,082 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 04:14:23,082 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 04:14:23,083 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 04:14:23,084 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 04:14:23,085 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 04:14:23,085 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 04:14:23,086 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 04:14:23,086 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 04:14:23,087 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 04:14:23,087 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 04:14:23,088 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 04:14:23,088 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 04:14:23,108 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 04:14:23,109 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 04:14:23,110 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 04:14:23,110 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 04:14:23,111 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 04:14:23,112 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 04:14:23,112 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 04:14:23,112 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 04:14:23,112 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 04:14:23,113 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 04:14:23,113 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 04:14:23,113 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 04:14:23,113 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 04:14:23,113 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 04:14:23,117 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 04:14:23,117 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 04:14:23,117 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 04:14:23,118 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 04:14:23,119 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 04:14:23,164 INFO ]: Repository-Root is: /tmp [2018-06-22 04:14:23,181 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 04:14:23,187 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 04:14:23,189 INFO ]: Initializing SmtParser... [2018-06-22 04:14:23,189 INFO ]: SmtParser initialized [2018-06-22 04:14:23,190 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/array_max-4.smt2 [2018-06-22 04:14:23,191 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 04:14:23,278 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/array_max-4.smt2 unknown [2018-06-22 04:14:23,971 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/array_max-4.smt2 [2018-06-22 04:14:23,975 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 04:14:23,982 INFO ]: Walking toolchain with 4 elements. [2018-06-22 04:14:23,982 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 04:14:23,982 INFO ]: Initializing ChcToBoogie... [2018-06-22 04:14:23,982 INFO ]: ChcToBoogie initialized [2018-06-22 04:14:23,986 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:14:23" (1/1) ... [2018-06-22 04:14:24,069 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24 Unit [2018-06-22 04:14:24,069 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 04:14:24,070 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 04:14:24,070 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 04:14:24,070 INFO ]: Boogie Preprocessor initialized [2018-06-22 04:14:24,092 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24" (1/1) ... [2018-06-22 04:14:24,092 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24" (1/1) ... [2018-06-22 04:14:24,105 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24" (1/1) ... [2018-06-22 04:14:24,105 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24" (1/1) ... [2018-06-22 04:14:24,126 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24" (1/1) ... [2018-06-22 04:14:24,127 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24" (1/1) ... [2018-06-22 04:14:24,131 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24" (1/1) ... [2018-06-22 04:14:24,136 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 04:14:24,137 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 04:14:24,137 INFO ]: Initializing RCFGBuilder... [2018-06-22 04:14:24,137 INFO ]: RCFGBuilder initialized [2018-06-22 04:14:24,138 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24" (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 04:14:24,156 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 04:14:24,156 INFO ]: Found specification of procedure gotoProc [2018-06-22 04:14:24,156 INFO ]: Found implementation of procedure gotoProc [2018-06-22 04:14:24,157 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 04:14:24,157 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 04:14:24,157 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 04:14:24,604 INFO ]: Using library mode [2018-06-22 04:14:24,605 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:14:24 BoogieIcfgContainer [2018-06-22 04:14:24,605 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 04:14:24,609 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 04:14:24,609 INFO ]: Initializing TraceAbstraction... [2018-06-22 04:14:24,616 INFO ]: TraceAbstraction initialized [2018-06-22 04:14:24,616 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:14:23" (1/3) ... [2018-06-22 04:14:24,617 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c0d78f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 04:14:24, skipping insertion in model container [2018-06-22 04:14:24,617 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:14:24" (2/3) ... [2018-06-22 04:14:24,617 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c0d78f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:14:24, skipping insertion in model container [2018-06-22 04:14:24,617 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:14:24" (3/3) ... [2018-06-22 04:14:24,620 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 04:14:24,630 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 04:14:24,639 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 04:14:24,691 INFO ]: Using default assertion order modulation [2018-06-22 04:14:24,692 INFO ]: Interprodecural is true [2018-06-22 04:14:24,692 INFO ]: Hoare is false [2018-06-22 04:14:24,692 INFO ]: Compute interpolants for FPandBP [2018-06-22 04:14:24,692 INFO ]: Backedges is TWOTRACK [2018-06-22 04:14:24,692 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 04:14:24,692 INFO ]: Difference is false [2018-06-22 04:14:24,692 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 04:14:24,692 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 04:14:24,706 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 04:14:24,718 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 04:14:24,718 INFO ]: Found error trace [2018-06-22 04:14:24,719 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:14:24,719 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:14:24,723 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 04:14:24,725 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:14:24,725 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:14:24,764 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:24,764 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:14:24,764 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:24,827 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:14:24,905 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:14:24,907 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 04:14:24,907 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 04:14:24,909 INFO ]: Interpolant automaton has 3 states [2018-06-22 04:14:24,920 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 04:14:24,920 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:14:24,922 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 04:14:25,016 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:14:25,016 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 04:14:25,017 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 04:14:25,019 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 04:14:25,019 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:14:25,027 INFO ]: With dead ends: 9 [2018-06-22 04:14:25,027 INFO ]: Without dead ends: 9 [2018-06-22 04:14:25,029 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:14:25,043 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 04:14:25,062 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 04:14:25,063 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 04:14:25,064 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 04:14:25,065 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 04:14:25,065 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:14:25,065 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 04:14:25,065 INFO ]: Interpolant automaton has 3 states. [2018-06-22 04:14:25,065 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 04:14:25,065 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 04:14:25,065 INFO ]: Found error trace [2018-06-22 04:14:25,065 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:14:25,066 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:14:25,066 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 04:14:25,066 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:14:25,066 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:14:25,067 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:25,067 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:14:25,067 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:25,273 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:14:25,605 WARN ]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2018-06-22 04:14:25,605 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:14:25,606 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:14:25,606 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 04:14:25,625 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:14:25,729 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:14:25,740 INFO ]: Computing forward predicates... [2018-06-22 04:14:26,539 WARN ]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-06-22 04:14:26,556 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:14:26,578 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:14:26,578 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 04:14:26,578 INFO ]: Interpolant automaton has 6 states [2018-06-22 04:14:26,578 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 04:14:26,578 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:14:26,579 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 04:14:26,744 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:14:26,744 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 04:14:26,744 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 04:14:26,744 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 04:14:26,744 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:14:26,744 INFO ]: With dead ends: 11 [2018-06-22 04:14:26,745 INFO ]: Without dead ends: 11 [2018-06-22 04:14:26,745 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-06-22 04:14:26,746 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 04:14:26,747 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 04:14:26,747 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 04:14:26,747 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 04:14:26,747 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 04:14:26,747 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:14:26,747 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 04:14:26,748 INFO ]: Interpolant automaton has 6 states. [2018-06-22 04:14:26,748 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 04:14:26,748 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 04:14:26,748 INFO ]: Found error trace [2018-06-22 04:14:26,748 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:14:26,748 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:14:26,748 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 2 times [2018-06-22 04:14:26,748 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:14:26,748 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:14:26,749 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:26,749 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:14:26,749 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:26,991 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:14:27,689 WARN ]: Spent 349.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-06-22 04:14:27,698 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:14:27,698 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:14:27,698 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 04:14:27,704 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 04:14:27,844 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 04:14:27,844 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:14:27,855 INFO ]: Computing forward predicates... [2018-06-22 04:14:28,826 WARN ]: Spent 270.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-06-22 04:14:29,677 WARN ]: Spent 170.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2018-06-22 04:14:30,347 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:14:30,367 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:14:30,367 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-22 04:14:30,368 INFO ]: Interpolant automaton has 10 states [2018-06-22 04:14:30,368 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 04:14:30,368 INFO ]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-06-22 04:14:30,368 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-06-22 04:14:30,527 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:14:30,527 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 04:14:30,527 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 04:14:30,527 INFO ]: Start accepts. Automaton has 10 states. Word has length 10 [2018-06-22 04:14:30,528 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:14:30,528 INFO ]: With dead ends: 13 [2018-06-22 04:14:30,528 INFO ]: Without dead ends: 13 [2018-06-22 04:14:30,528 INFO ]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-06-22 04:14:30,528 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 04:14:30,530 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 04:14:30,530 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 04:14:30,530 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 04:14:30,530 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-06-22 04:14:30,530 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:14:30,530 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 04:14:30,530 INFO ]: Interpolant automaton has 10 states. [2018-06-22 04:14:30,530 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 04:14:30,531 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 04:14:30,531 INFO ]: Found error trace [2018-06-22 04:14:30,531 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:14:30,531 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:14:30,531 INFO ]: Analyzing trace with hash 1940481556, now seen corresponding path program 3 times [2018-06-22 04:14:30,531 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:14:30,531 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:14:30,532 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:30,532 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 04:14:30,532 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:30,799 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:14:31,250 WARN ]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-06-22 04:14:31,445 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:14:31,445 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:14:31,445 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 04:14:31,453 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 04:14:31,645 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 04:14:31,645 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:14:31,659 INFO ]: Computing forward predicates... [2018-06-22 04:14:35,282 WARN ]: Spent 660.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 43 [2018-06-22 04:14:41,281 WARN ]: Spent 163.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 40 [2018-06-22 04:14:41,629 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:14:41,664 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:14:41,665 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-22 04:14:41,665 INFO ]: Interpolant automaton has 14 states [2018-06-22 04:14:41,665 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 04:14:41,665 INFO ]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-06-22 04:14:41,665 INFO ]: Start difference. First operand 13 states and 13 transitions. Second operand 14 states. [2018-06-22 04:14:41,920 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:14:41,920 INFO ]: Finished difference Result 17 states and 17 transitions. [2018-06-22 04:14:41,921 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 04:14:41,921 INFO ]: Start accepts. Automaton has 14 states. Word has length 12 [2018-06-22 04:14:41,921 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:14:41,921 INFO ]: With dead ends: 17 [2018-06-22 04:14:41,921 INFO ]: Without dead ends: 17 [2018-06-22 04:14:41,921 INFO ]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=115, Invalid=191, Unknown=0, NotChecked=0, Total=306 [2018-06-22 04:14:41,921 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 04:14:41,923 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 04:14:41,923 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 04:14:41,923 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-06-22 04:14:41,923 INFO ]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 12 [2018-06-22 04:14:41,923 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:14:41,923 INFO ]: Abstraction has 17 states and 17 transitions. [2018-06-22 04:14:41,923 INFO ]: Interpolant automaton has 14 states. [2018-06-22 04:14:41,923 INFO ]: Start isEmpty. Operand 17 states and 17 transitions. [2018-06-22 04:14:41,924 INFO ]: Finished isEmpty. Found accepting run of length 17 [2018-06-22 04:14:41,924 INFO ]: Found error trace [2018-06-22 04:14:41,924 INFO ]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:14:41,924 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:14:41,924 INFO ]: Analyzing trace with hash -1752374252, now seen corresponding path program 4 times [2018-06-22 04:14:41,924 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:14:41,924 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:14:41,925 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:41,925 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 04:14:41,925 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:14:42,649 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:14:43,832 WARN ]: Spent 553.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 9 [2018-06-22 04:14:44,536 WARN ]: Spent 628.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 10 [2018-06-22 04:14:44,771 INFO ]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:14:44,771 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:14:44,771 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 04:14:44,782 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 04:14:45,080 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 04:14:45,080 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:14:45,100 INFO ]: Computing forward predicates... [2018-06-22 04:14:45,855 WARN ]: Spent 233.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2018-06-22 04:14:46,421 WARN ]: Spent 207.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2018-06-22 04:14:46,628 WARN ]: Simplifying disjunction of 5324 conjuctions. This might take some time... [2018-06-22 04:14:58,886 INFO ]: Simplified to disjunction of 5324 conjuctions. [2018-06-22 04:15:02,435 WARN ]: Spent 284.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 65 [2018-06-22 04:15:02,734 WARN ]: Spent 126.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 46 [2018-06-22 04:15:03,623 WARN ]: Spent 159.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 43 [2018-06-22 04:15:04,045 WARN ]: Spent 166.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 40 [2018-06-22 04:15:07,537 WARN ]: Spent 565.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 37 [2018-06-22 04:15:07,656 INFO ]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:15:07,683 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:15:07,683 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2018-06-22 04:15:07,683 INFO ]: Interpolant automaton has 22 states [2018-06-22 04:15:07,684 INFO ]: Constructing interpolant automaton starting with 22 interpolants. [2018-06-22 04:15:07,684 INFO ]: CoverageRelationStatistics Valid=166, Invalid=296, Unknown=0, NotChecked=0, Total=462 [2018-06-22 04:15:07,684 INFO ]: Start difference. First operand 17 states and 17 transitions. Second operand 22 states. [2018-06-22 04:15:08,014 WARN ]: Spent 112.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2018-06-22 04:15:08,782 WARN ]: Spent 130.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-06-22 04:15:08,805 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:15:08,805 INFO ]: Finished difference Result 25 states and 25 transitions. [2018-06-22 04:15:08,807 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-22 04:15:08,807 INFO ]: Start accepts. Automaton has 22 states. Word has length 16 [2018-06-22 04:15:08,807 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:15:08,808 INFO ]: With dead ends: 25 [2018-06-22 04:15:08,808 INFO ]: Without dead ends: 25 [2018-06-22 04:15:08,808 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=328, Invalid=542, Unknown=0, NotChecked=0, Total=870 [2018-06-22 04:15:08,808 INFO ]: Start minimizeSevpa. Operand 25 states. [2018-06-22 04:15:08,810 INFO ]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-06-22 04:15:08,810 INFO ]: Start removeUnreachable. Operand 25 states. [2018-06-22 04:15:08,811 INFO ]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-06-22 04:15:08,811 INFO ]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 16 [2018-06-22 04:15:08,811 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:15:08,811 INFO ]: Abstraction has 25 states and 25 transitions. [2018-06-22 04:15:08,811 INFO ]: Interpolant automaton has 22 states. [2018-06-22 04:15:08,811 INFO ]: Start isEmpty. Operand 25 states and 25 transitions. [2018-06-22 04:15:08,811 INFO ]: Finished isEmpty. Found accepting run of length 25 [2018-06-22 04:15:08,811 INFO ]: Found error trace [2018-06-22 04:15:08,811 INFO ]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:15:08,812 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:15:08,812 INFO ]: Analyzing trace with hash 1090969620, now seen corresponding path program 5 times [2018-06-22 04:15:08,812 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:15:08,812 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:15:08,813 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:15:08,813 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 04:15:08,813 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:15:10,255 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:15:11,142 WARN ]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-06-22 04:15:11,435 WARN ]: Spent 241.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 6 [2018-06-22 04:15:11,886 WARN ]: Spent 380.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 10 [2018-06-22 04:15:12,218 WARN ]: Spent 235.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2018-06-22 04:15:12,395 WARN ]: Spent 100.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 10 [2018-06-22 04:15:12,890 INFO ]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:15:12,890 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:15:12,890 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 04:15:12,896 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 04:15:13,950 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2018-06-22 04:15:13,950 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:15:13,984 INFO ]: Computing forward predicates... [2018-06-22 04:15:15,382 WARN ]: Spent 299.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2018-06-22 04:15:15,652 WARN ]: Spent 155.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2018-06-22 04:15:16,114 WARN ]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 38 [2018-06-22 04:15:16,864 WARN ]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2018-06-22 04:15:17,493 WARN ]: Spent 335.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 37 [2018-06-22 04:15:18,014 WARN ]: Spent 273.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 37 [2018-06-22 04:15:18,362 WARN ]: Spent 156.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 24 Received shutdown request... [2018-06-22 04:15:21,187 WARN ]: Removed 8 from assertion stack [2018-06-22 04:15:21,187 INFO ]: Timeout while computing interpolants [2018-06-22 04:15:21,387 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:15:21,388 WARN ]: Verification canceled [2018-06-22 04:15:21,391 WARN ]: Timeout [2018-06-22 04:15:21,392 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:15:21 BoogieIcfgContainer [2018-06-22 04:15:21,392 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 04:15:21,393 INFO ]: Toolchain (without parser) took 57416.58 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 239.3 MB in the beginning and 935.8 MB in the end (delta: -696.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 04:15:21,393 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 305.7 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 04:15:21,394 INFO ]: ChcToBoogie took 87.18 ms. Allocated memory is still 305.7 MB. Free memory was 239.3 MB in the beginning and 235.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:15:21,394 INFO ]: Boogie Preprocessor took 66.28 ms. Allocated memory is still 305.7 MB. Free memory was 235.3 MB in the beginning and 233.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:15:21,394 INFO ]: RCFGBuilder took 468.18 ms. Allocated memory is still 305.7 MB. Free memory was 233.3 MB in the beginning and 205.3 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 3.6 GB. [2018-06-22 04:15:21,395 INFO ]: TraceAbstraction took 56782.59 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 205.3 MB in the beginning and 935.8 MB in the end (delta: -730.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 04:15:21,400 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 305.7 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 87.18 ms. Allocated memory is still 305.7 MB. Free memory was 239.3 MB in the beginning and 235.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 66.28 ms. Allocated memory is still 305.7 MB. Free memory was 235.3 MB in the beginning and 233.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 468.18 ms. Allocated memory is still 305.7 MB. Free memory was 233.3 MB in the beginning and 205.3 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 56782.59 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 205.3 MB in the beginning and 935.8 MB in the end (delta: -730.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 17, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 314. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 56.7s OverallTime, 6 OverallIterations, 17 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 4 SDslu, 123 SDs, 0 SdLazy, 59 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 39.7s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 15000 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1810 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/134 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array_max-4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_04-15-21-410.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array_max-4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_04-15-21-410.csv Completed graceful shutdown