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/conc/stateful01_safe_v1.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 05:06:26,331 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 05:06:26,333 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 05:06:26,349 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 05:06:26,349 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 05:06:26,350 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 05:06:26,355 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 05:06:26,357 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 05:06:26,360 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 05:06:26,361 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 05:06:26,361 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 05:06:26,362 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 05:06:26,363 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 05:06:26,366 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 05:06:26,367 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 05:06:26,371 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 05:06:26,373 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 05:06:26,376 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 05:06:26,377 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 05:06:26,378 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 05:06:26,384 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 05:06:26,386 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 05:06:26,387 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 05:06:26,387 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 05:06:26,388 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 05:06:26,389 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 05:06:26,389 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 05:06:26,390 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 05:06:26,392 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 05:06:26,392 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 05:06:26,392 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 05:06:26,393 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 05:06:26,393 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 05:06:26,394 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 05:06:26,395 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 05:06:26,402 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 05:06:26,419 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 05:06:26,419 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 05:06:26,419 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 05:06:26,419 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 05:06:26,420 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 05:06:26,421 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 05:06:26,421 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 05:06:26,421 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 05:06:26,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 05:06:26,421 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 05:06:26,422 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 05:06:26,422 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 05:06:26,422 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 05:06:26,422 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 05:06:26,422 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 05:06:26,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 05:06:26,423 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 05:06:26,424 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 05:06:26,424 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 05:06:26,484 INFO ]: Repository-Root is: /tmp [2018-06-22 05:06:26,503 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 05:06:26,508 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 05:06:26,509 INFO ]: Initializing SmtParser... [2018-06-22 05:06:26,510 INFO ]: SmtParser initialized [2018-06-22 05:06:26,510 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/conc/stateful01_safe_v1.smt2 [2018-06-22 05:06:26,511 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 05:06:26,608 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/conc/stateful01_safe_v1.smt2 unknown [2018-06-22 05:06:26,977 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/conc/stateful01_safe_v1.smt2 [2018-06-22 05:06:26,982 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 05:06:26,988 INFO ]: Walking toolchain with 4 elements. [2018-06-22 05:06:26,988 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 05:06:26,989 INFO ]: Initializing ChcToBoogie... [2018-06-22 05:06:26,989 INFO ]: ChcToBoogie initialized [2018-06-22 05:06:26,993 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:06:26" (1/1) ... [2018-06-22 05:06:27,066 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27 Unit [2018-06-22 05:06:27,066 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 05:06:27,066 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 05:06:27,066 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 05:06:27,066 INFO ]: Boogie Preprocessor initialized [2018-06-22 05:06:27,087 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27" (1/1) ... [2018-06-22 05:06:27,087 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27" (1/1) ... [2018-06-22 05:06:27,096 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27" (1/1) ... [2018-06-22 05:06:27,096 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27" (1/1) ... [2018-06-22 05:06:27,112 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27" (1/1) ... [2018-06-22 05:06:27,113 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27" (1/1) ... [2018-06-22 05:06:27,123 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27" (1/1) ... [2018-06-22 05:06:27,125 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 05:06:27,126 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 05:06:27,126 INFO ]: Initializing RCFGBuilder... [2018-06-22 05:06:27,126 INFO ]: RCFGBuilder initialized [2018-06-22 05:06:27,127 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 05:06:27,157 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 05:06:27,157 INFO ]: Found specification of procedure gotoProc [2018-06-22 05:06:27,157 INFO ]: Found implementation of procedure gotoProc [2018-06-22 05:06:27,158 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 05:06:27,158 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 05:06:27,158 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 05:06:27,434 INFO ]: Using library mode [2018-06-22 05:06:27,434 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:06:27 BoogieIcfgContainer [2018-06-22 05:06:27,434 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 05:06:27,436 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 05:06:27,436 INFO ]: Initializing TraceAbstraction... [2018-06-22 05:06:27,439 INFO ]: TraceAbstraction initialized [2018-06-22 05:06:27,439 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:06:26" (1/3) ... [2018-06-22 05:06:27,440 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e44e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 05:06:27, skipping insertion in model container [2018-06-22 05:06:27,440 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:06:27" (2/3) ... [2018-06-22 05:06:27,441 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e44e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:06:27, skipping insertion in model container [2018-06-22 05:06:27,441 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:06:27" (3/3) ... [2018-06-22 05:06:27,449 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 05:06:27,464 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 05:06:27,480 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 05:06:27,532 INFO ]: Using default assertion order modulation [2018-06-22 05:06:27,532 INFO ]: Interprodecural is true [2018-06-22 05:06:27,532 INFO ]: Hoare is false [2018-06-22 05:06:27,532 INFO ]: Compute interpolants for FPandBP [2018-06-22 05:06:27,532 INFO ]: Backedges is TWOTRACK [2018-06-22 05:06:27,532 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 05:06:27,532 INFO ]: Difference is false [2018-06-22 05:06:27,532 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 05:06:27,533 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 05:06:27,545 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 05:06:27,560 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 05:06:27,560 INFO ]: Found error trace [2018-06-22 05:06:27,562 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:06:27,562 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:06:27,567 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 05:06:27,568 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:06:27,569 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:06:27,607 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:27,607 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:06:27,607 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:27,662 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:27,743 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:27,746 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 05:06:27,746 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 05:06:27,748 INFO ]: Interpolant automaton has 3 states [2018-06-22 05:06:27,760 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 05:06:27,761 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 05:06:27,763 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 05:06:27,859 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:06:27,859 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 05:06:27,860 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 05:06:27,862 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 05:06:27,862 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:06:27,873 INFO ]: With dead ends: 9 [2018-06-22 05:06:27,873 INFO ]: Without dead ends: 9 [2018-06-22 05:06:27,875 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 05:06:27,888 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 05:06:27,903 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 05:06:27,904 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 05:06:27,905 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 05:06:27,906 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 05:06:27,906 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:06:27,906 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 05:06:27,906 INFO ]: Interpolant automaton has 3 states. [2018-06-22 05:06:27,906 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 05:06:27,906 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 05:06:27,907 INFO ]: Found error trace [2018-06-22 05:06:27,907 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:06:27,907 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:06:27,907 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 05:06:27,907 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:06:27,907 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:06:27,908 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:27,908 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:06:27,908 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:27,965 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:28,138 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:28,138 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:06:28,138 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) [2018-06-22 05:06:28,149 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:06:28,245 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:28,258 INFO ]: Computing forward predicates... [2018-06-22 05:06:29,326 WARN ]: Spent 181.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-06-22 05:06:29,345 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:29,367 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:06:29,367 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 05:06:29,368 INFO ]: Interpolant automaton has 6 states [2018-06-22 05:06:29,368 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 05:06:29,368 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:06:29,368 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 05:06:29,550 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:06:29,550 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 05:06:29,551 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 05:06:29,551 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 05:06:29,551 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:06:29,551 INFO ]: With dead ends: 10 [2018-06-22 05:06:29,551 INFO ]: Without dead ends: 10 [2018-06-22 05:06:29,552 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-06-22 05:06:29,552 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 05:06:29,553 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 05:06:29,553 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 05:06:29,554 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 05:06:29,554 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 05:06:29,554 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:06:29,554 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 05:06:29,554 INFO ]: Interpolant automaton has 6 states. [2018-06-22 05:06:29,554 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 05:06:29,554 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 05:06:29,554 INFO ]: Found error trace [2018-06-22 05:06:29,554 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:06:29,554 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:06:29,554 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-22 05:06:29,554 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:06:29,554 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:06:29,557 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:29,557 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:06:29,557 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:29,647 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:29,904 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:29,904 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:06:29,904 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 05:06:29,914 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 05:06:30,002 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 05:06:30,002 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:30,005 INFO ]: Computing forward predicates... [2018-06-22 05:06:31,380 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:31,413 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:06:31,413 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-22 05:06:31,414 INFO ]: Interpolant automaton has 6 states [2018-06-22 05:06:31,414 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 05:06:31,414 INFO ]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:06:31,414 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2018-06-22 05:06:31,429 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:06:31,429 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 05:06:31,430 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 05:06:31,430 INFO ]: Start accepts. Automaton has 6 states. Word has length 9 [2018-06-22 05:06:31,430 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:06:31,431 INFO ]: With dead ends: 11 [2018-06-22 05:06:31,431 INFO ]: Without dead ends: 11 [2018-06-22 05:06:31,431 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:06:31,431 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 05:06:31,432 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 05:06:31,432 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 05:06:31,432 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 05:06:31,432 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-22 05:06:31,432 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:06:31,433 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 05:06:31,433 INFO ]: Interpolant automaton has 6 states. [2018-06-22 05:06:31,433 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 05:06:31,433 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 05:06:31,433 INFO ]: Found error trace [2018-06-22 05:06:31,433 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:06:31,433 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:06:31,433 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 3 times [2018-06-22 05:06:31,433 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:06:31,433 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:06:31,434 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:31,435 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:06:31,435 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:31,480 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:31,623 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:31,623 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:06:31,623 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 05:06:31,631 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 05:06:31,725 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 05:06:31,725 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:31,729 INFO ]: Computing forward predicates... [2018-06-22 05:06:32,374 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:32,397 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:06:32,397 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-06-22 05:06:32,397 INFO ]: Interpolant automaton has 7 states [2018-06-22 05:06:32,397 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 05:06:32,398 INFO ]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-06-22 05:06:32,398 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-06-22 05:06:32,420 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:06:32,420 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 05:06:32,421 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 05:06:32,421 INFO ]: Start accepts. Automaton has 7 states. Word has length 10 [2018-06-22 05:06:32,421 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:06:32,421 INFO ]: With dead ends: 13 [2018-06-22 05:06:32,421 INFO ]: Without dead ends: 13 [2018-06-22 05:06:32,421 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-06-22 05:06:32,422 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 05:06:32,423 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 05:06:32,423 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 05:06:32,424 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 05:06:32,424 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-06-22 05:06:32,424 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:06:32,424 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 05:06:32,424 INFO ]: Interpolant automaton has 7 states. [2018-06-22 05:06:32,424 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 05:06:32,424 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 05:06:32,424 INFO ]: Found error trace [2018-06-22 05:06:32,424 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:06:32,424 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:06:32,425 INFO ]: Analyzing trace with hash 1940481556, now seen corresponding path program 4 times [2018-06-22 05:06:32,425 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:06:32,425 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:06:32,425 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:32,425 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:06:32,425 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:32,507 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:33,139 WARN ]: Spent 332.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2018-06-22 05:06:33,210 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:33,210 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:06:33,210 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 05:06:33,217 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 05:06:33,325 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 05:06:33,325 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:33,330 INFO ]: Computing forward predicates... [2018-06-22 05:06:33,411 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:06:33,443 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:33,464 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:33,471 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:33,983 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:33,988 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:34,003 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:06:34,022 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:06:34,030 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:34,033 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:34,036 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:34,036 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:34,110 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:06:34,154 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:06:35,402 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:35,407 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:35,409 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:35,414 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:35,424 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:35,434 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:35,585 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:35,590 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:35,799 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:37,150 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:06:37,176 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:06:38,962 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:38,997 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:06:38,997 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-06-22 05:06:38,997 INFO ]: Interpolant automaton has 9 states [2018-06-22 05:06:38,997 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 05:06:38,997 INFO ]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-06-22 05:06:38,998 INFO ]: Start difference. First operand 13 states and 13 transitions. Second operand 9 states. [2018-06-22 05:06:39,142 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:06:39,142 INFO ]: Finished difference Result 14 states and 14 transitions. [2018-06-22 05:06:39,143 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 05:06:39,143 INFO ]: Start accepts. Automaton has 9 states. Word has length 12 [2018-06-22 05:06:39,143 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:06:39,143 INFO ]: With dead ends: 14 [2018-06-22 05:06:39,143 INFO ]: Without dead ends: 14 [2018-06-22 05:06:39,144 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-06-22 05:06:39,144 INFO ]: Start minimizeSevpa. Operand 14 states. [2018-06-22 05:06:39,145 INFO ]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-06-22 05:06:39,145 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-22 05:06:39,146 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-06-22 05:06:39,146 INFO ]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-06-22 05:06:39,146 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:06:39,146 INFO ]: Abstraction has 14 states and 14 transitions. [2018-06-22 05:06:39,146 INFO ]: Interpolant automaton has 9 states. [2018-06-22 05:06:39,146 INFO ]: Start isEmpty. Operand 14 states and 14 transitions. [2018-06-22 05:06:39,146 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 05:06:39,146 INFO ]: Found error trace [2018-06-22 05:06:39,146 INFO ]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:06:39,146 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:06:39,146 INFO ]: Analyzing trace with hash 23503628, now seen corresponding path program 5 times [2018-06-22 05:06:39,146 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:06:39,146 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:06:39,147 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:39,147 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:06:39,147 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:06:39,308 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:39,737 WARN ]: Spent 156.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 11 [2018-06-22 05:06:39,939 WARN ]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 14 [2018-06-22 05:06:40,135 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:06:40,135 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:06:40,135 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 05:06:40,142 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 05:06:40,311 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-06-22 05:06:40,311 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:06:40,318 INFO ]: Computing forward predicates... [2018-06-22 05:06:40,930 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:41,002 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:41,024 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:41,032 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:06:42,021 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,023 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,025 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,025 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,026 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,027 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,028 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,030 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,030 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,032 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,033 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:42,050 WARN ]: Simplifying disjunction of 5632 conjuctions. This might take some time... [2018-06-22 05:06:45,147 INFO ]: Simplified to disjunction of 5632 conjuctions. [2018-06-22 05:06:45,160 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:45,161 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:45,162 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:45,163 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:45,164 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:45,166 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:45,166 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 05:06:45,212 WARN ]: Simplifying disjunction of 12672 conjuctions. This might take some time... [2018-06-22 05:06:56,078 INFO ]: Simplified to disjunction of 7040 conjuctions. [2018-06-22 05:06:56,102 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:56,102 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:06:56,145 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:56,145 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 05:06:56,372 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:06:56,373 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 05:06:56,399 WARN ]: Simplifying disjunction of 8448 conjuctions. This might take some time... [2018-06-22 05:07:03,853 INFO ]: Simplified to disjunction of 8448 conjuctions. [2018-06-22 05:07:03,876 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:07:03,876 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 05:07:03,927 WARN ]: Simplifying disjunction of 11264 conjuctions. This might take some time... [2018-06-22 05:07:21,756 INFO ]: Simplified to disjunction of 11264 conjuctions. [2018-06-22 05:07:21,782 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:07:21,782 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:07:23,901 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:07:23,902 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 05:07:23,932 WARN ]: Simplifying disjunction of 8448 conjuctions. This might take some time... [2018-06-22 05:07:31,462 INFO ]: Simplified to disjunction of 5632 conjuctions. [2018-06-22 05:07:31,478 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:07:31,478 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 05:07:31,542 WARN ]: Simplifying disjunction of 16896 conjuctions. This might take some time... Received shutdown request... [2018-06-22 05:07:38,443 INFO ]: Timeout while computing interpolants [2018-06-22 05:07:38,644 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:07:38,644 WARN ]: Verification canceled [2018-06-22 05:07:38,648 WARN ]: Timeout [2018-06-22 05:07:38,648 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:07:38 BoogieIcfgContainer [2018-06-22 05:07:38,648 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 05:07:38,649 INFO ]: Toolchain (without parser) took 71666.81 ms. Allocated memory was 302.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 251.5 MB in the beginning and 314.3 MB in the end (delta: -62.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 05:07:38,650 INFO ]: SmtParser took 0.12 ms. Allocated memory is still 302.0 MB. Free memory is still 267.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 05:07:38,651 INFO ]: ChcToBoogie took 77.41 ms. Allocated memory is still 302.0 MB. Free memory was 251.5 MB in the beginning and 248.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:07:38,651 INFO ]: Boogie Preprocessor took 59.25 ms. Allocated memory is still 302.0 MB. Free memory was 248.5 MB in the beginning and 247.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:07:38,652 INFO ]: RCFGBuilder took 308.48 ms. Allocated memory is still 302.0 MB. Free memory was 247.5 MB in the beginning and 232.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 3.6 GB. [2018-06-22 05:07:38,652 INFO ]: TraceAbstraction took 71212.90 ms. Allocated memory was 302.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 232.4 MB in the beginning and 314.3 MB in the end (delta: -81.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 05:07:38,658 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.12 ms. Allocated memory is still 302.0 MB. Free memory is still 267.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 77.41 ms. Allocated memory is still 302.0 MB. Free memory was 251.5 MB in the beginning and 248.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 59.25 ms. Allocated memory is still 302.0 MB. Free memory was 248.5 MB in the beginning and 247.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 308.48 ms. Allocated memory is still 302.0 MB. Free memory was 247.5 MB in the beginning and 232.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 71212.90 ms. Allocated memory was 302.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 232.4 MB in the beginning and 314.3 MB in the end (delta: -81.8 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 14 with TraceHistMax 6, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 16896 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 71.1s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 0 SDslu, 90 SDs, 0 SdLazy, 42 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 32 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 1624 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1226 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/50 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/stateful01_safe_v1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_05-07-38-675.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stateful01_safe_v1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_05-07-38-675.csv Completed graceful shutdown