java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/ctigar/rajamani_1.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 15:28:02,431 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 15:28:02,433 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 15:28:02,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 15:28:02,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 15:28:02,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 15:28:02,447 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 15:28:02,448 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 15:28:02,450 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 15:28:02,451 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 15:28:02,452 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 15:28:02,452 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 15:28:02,453 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 15:28:02,454 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 15:28:02,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 15:28:02,455 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 15:28:02,457 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 15:28:02,459 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 15:28:02,461 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 15:28:02,462 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 15:28:02,463 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 15:28:02,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 15:28:02,466 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 15:28:02,466 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 15:28:02,467 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 15:28:02,468 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 15:28:02,468 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 15:28:02,469 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 15:28:02,470 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 15:28:02,470 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 15:28:02,471 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 15:28:02,472 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 15:28:02,472 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 15:28:02,473 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 15:28:02,473 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 15:28:02,474 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 15:28:02,487 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 15:28:02,487 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 15:28:02,488 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 15:28:02,488 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 15:28:02,489 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 15:28:02,489 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 15:28:02,489 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 15:28:02,490 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 15:28:02,490 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 15:28:02,490 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 15:28:02,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 15:28:02,490 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 15:28:02,491 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 15:28:02,491 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 15:28:02,491 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 15:28:02,491 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 15:28:02,491 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 15:28:02,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 15:28:02,492 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 15:28:02,493 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 15:28:02,493 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 15:28:02,541 INFO ]: Repository-Root is: /tmp [2018-06-22 15:28:02,556 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 15:28:02,559 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 15:28:02,560 INFO ]: Initializing SmtParser... [2018-06-22 15:28:02,561 INFO ]: SmtParser initialized [2018-06-22 15:28:02,561 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/rajamani_1.c.smt2 [2018-06-22 15:28:02,562 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 15:28:02,655 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/rajamani_1.c.smt2 unknown [2018-06-22 15:28:02,911 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/rajamani_1.c.smt2 [2018-06-22 15:28:02,916 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 15:28:02,922 INFO ]: Walking toolchain with 4 elements. [2018-06-22 15:28:02,923 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 15:28:02,923 INFO ]: Initializing ChcToBoogie... [2018-06-22 15:28:02,923 INFO ]: ChcToBoogie initialized [2018-06-22 15:28:02,926 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:28:02" (1/1) ... [2018-06-22 15:28:02,975 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02 Unit [2018-06-22 15:28:02,975 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 15:28:02,976 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 15:28:02,976 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 15:28:02,976 INFO ]: Boogie Preprocessor initialized [2018-06-22 15:28:02,999 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02" (1/1) ... [2018-06-22 15:28:02,999 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02" (1/1) ... [2018-06-22 15:28:03,011 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02" (1/1) ... [2018-06-22 15:28:03,011 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02" (1/1) ... [2018-06-22 15:28:03,024 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02" (1/1) ... [2018-06-22 15:28:03,025 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02" (1/1) ... [2018-06-22 15:28:03,026 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02" (1/1) ... [2018-06-22 15:28:03,027 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 15:28:03,037 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 15:28:03,037 INFO ]: Initializing RCFGBuilder... [2018-06-22 15:28:03,037 INFO ]: RCFGBuilder initialized [2018-06-22 15:28:03,042 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02" (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 15:28:03,057 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 15:28:03,057 INFO ]: Found specification of procedure False [2018-06-22 15:28:03,058 INFO ]: Found implementation of procedure False [2018-06-22 15:28:03,058 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 15:28:03,058 INFO ]: Found specification of procedure state [2018-06-22 15:28:03,058 INFO ]: Found implementation of procedure state [2018-06-22 15:28:03,058 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 15:28:03,058 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 15:28:03,058 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 15:28:03,324 INFO ]: Using library mode [2018-06-22 15:28:03,324 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:28:03 BoogieIcfgContainer [2018-06-22 15:28:03,324 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 15:28:03,332 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 15:28:03,333 INFO ]: Initializing TraceAbstraction... [2018-06-22 15:28:03,336 INFO ]: TraceAbstraction initialized [2018-06-22 15:28:03,336 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:28:02" (1/3) ... [2018-06-22 15:28:03,337 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dd27cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 03:28:03, skipping insertion in model container [2018-06-22 15:28:03,337 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:28:02" (2/3) ... [2018-06-22 15:28:03,337 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dd27cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:28:03, skipping insertion in model container [2018-06-22 15:28:03,337 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:28:03" (3/3) ... [2018-06-22 15:28:03,339 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 15:28:03,349 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 15:28:03,356 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 15:28:03,396 INFO ]: Using default assertion order modulation [2018-06-22 15:28:03,396 INFO ]: Interprodecural is true [2018-06-22 15:28:03,396 INFO ]: Hoare is false [2018-06-22 15:28:03,396 INFO ]: Compute interpolants for FPandBP [2018-06-22 15:28:03,396 INFO ]: Backedges is TWOTRACK [2018-06-22 15:28:03,396 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 15:28:03,396 INFO ]: Difference is false [2018-06-22 15:28:03,396 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 15:28:03,396 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 15:28:03,409 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 15:28:03,418 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 15:28:03,418 INFO ]: Found error trace [2018-06-22 15:28:03,419 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:28:03,419 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:28:03,423 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 15:28:03,424 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:28:03,424 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:28:03,459 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:03,459 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:28:03,459 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:03,488 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:03,559 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 15:28:03,561 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 15:28:03,561 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 15:28:03,563 INFO ]: Interpolant automaton has 4 states [2018-06-22 15:28:03,577 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 15:28:03,577 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 15:28:03,579 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 15:28:03,651 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:28:03,651 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 15:28:03,651 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 15:28:03,652 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 15:28:03,653 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:28:03,661 INFO ]: With dead ends: 13 [2018-06-22 15:28:03,661 INFO ]: Without dead ends: 13 [2018-06-22 15:28:03,662 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 15:28:03,675 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 15:28:03,701 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 15:28:03,702 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 15:28:03,703 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 15:28:03,704 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 15:28:03,704 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:28:03,704 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 15:28:03,704 INFO ]: Interpolant automaton has 4 states. [2018-06-22 15:28:03,704 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 15:28:03,705 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 15:28:03,705 INFO ]: Found error trace [2018-06-22 15:28:03,706 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:28:03,706 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:28:03,706 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 15:28:03,706 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:28:03,707 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:28:03,707 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:03,707 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:28:03,707 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:03,759 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:04,014 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:28:04,014 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:28:04,014 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 15:28:04,030 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 15:28:04,066 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:04,076 INFO ]: Computing forward predicates... [2018-06-22 15:28:04,320 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:28:04,353 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:28:04,353 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-06-22 15:28:04,354 INFO ]: Interpolant automaton has 6 states [2018-06-22 15:28:04,354 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 15:28:04,354 INFO ]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-06-22 15:28:04,354 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 6 states. [2018-06-22 15:28:04,534 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:28:04,534 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 15:28:04,535 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 15:28:04,535 INFO ]: Start accepts. Automaton has 6 states. Word has length 13 [2018-06-22 15:28:04,535 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:28:04,536 INFO ]: With dead ends: 15 [2018-06-22 15:28:04,536 INFO ]: Without dead ends: 15 [2018-06-22 15:28:04,536 INFO ]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-06-22 15:28:04,536 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 15:28:04,539 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 15:28:04,539 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 15:28:04,540 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 15:28:04,540 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 15:28:04,540 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:28:04,540 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 15:28:04,540 INFO ]: Interpolant automaton has 6 states. [2018-06-22 15:28:04,540 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 15:28:04,541 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 15:28:04,541 INFO ]: Found error trace [2018-06-22 15:28:04,541 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:28:04,541 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:28:04,541 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-22 15:28:04,541 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:28:04,541 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:28:04,542 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:04,542 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:28:04,542 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:04,605 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:04,982 WARN ]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 15:28:05,311 WARN ]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-06-22 15:28:05,520 WARN ]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 15:28:05,725 WARN ]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 15:28:05,755 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 15:28:05,755 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:28:05,755 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) [2018-06-22 15:28:05,769 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 15:28:05,840 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 15:28:05,840 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:05,846 INFO ]: Computing forward predicates... [2018-06-22 15:28:06,075 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 15:28:06,094 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:28:06,094 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2018-06-22 15:28:06,094 INFO ]: Interpolant automaton has 11 states [2018-06-22 15:28:06,094 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 15:28:06,094 INFO ]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-06-22 15:28:06,095 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 11 states. [2018-06-22 15:28:06,626 WARN ]: Spent 171.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 18 [2018-06-22 15:28:06,643 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:28:06,643 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 15:28:06,644 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 15:28:06,644 INFO ]: Start accepts. Automaton has 11 states. Word has length 17 [2018-06-22 15:28:06,644 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:28:06,645 INFO ]: With dead ends: 17 [2018-06-22 15:28:06,645 INFO ]: Without dead ends: 17 [2018-06-22 15:28:06,645 INFO ]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-06-22 15:28:06,645 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 15:28:06,649 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 15:28:06,649 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 15:28:06,650 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 15:28:06,650 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 15:28:06,650 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:28:06,650 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 15:28:06,650 INFO ]: Interpolant automaton has 11 states. [2018-06-22 15:28:06,650 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 15:28:06,650 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 15:28:06,650 INFO ]: Found error trace [2018-06-22 15:28:06,651 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:28:06,651 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:28:06,651 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 3 times [2018-06-22 15:28:06,651 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:28:06,651 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:28:06,652 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:06,652 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 15:28:06,652 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:06,703 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:06,990 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 15:28:06,990 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:28:06,990 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 15:28:07,000 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 15:28:07,065 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 15:28:07,065 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:07,070 INFO ]: Computing forward predicates... [2018-06-22 15:28:07,484 WARN ]: Spent 244.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 23 [2018-06-22 15:28:07,845 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 15:28:07,876 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:28:07,876 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2018-06-22 15:28:07,877 INFO ]: Interpolant automaton has 13 states [2018-06-22 15:28:07,877 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 15:28:07,877 INFO ]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2018-06-22 15:28:07,877 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 13 states. [2018-06-22 15:28:08,033 WARN ]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-06-22 15:28:08,319 WARN ]: Spent 145.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2018-06-22 15:28:08,339 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:28:08,339 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-22 15:28:08,340 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 15:28:08,340 INFO ]: Start accepts. Automaton has 13 states. Word has length 21 [2018-06-22 15:28:08,340 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:28:08,341 INFO ]: With dead ends: 19 [2018-06-22 15:28:08,341 INFO ]: Without dead ends: 19 [2018-06-22 15:28:08,341 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2018-06-22 15:28:08,341 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 15:28:08,344 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 15:28:08,344 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 15:28:08,345 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-22 15:28:08,345 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-22 15:28:08,345 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:28:08,345 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-22 15:28:08,345 INFO ]: Interpolant automaton has 13 states. [2018-06-22 15:28:08,345 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-22 15:28:08,346 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 15:28:08,346 INFO ]: Found error trace [2018-06-22 15:28:08,346 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:28:08,346 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:28:08,346 INFO ]: Analyzing trace with hash -434924750, now seen corresponding path program 4 times [2018-06-22 15:28:08,346 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:28:08,346 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:28:08,347 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:08,347 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 15:28:08,347 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:08,403 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:09,057 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 15:28:09,057 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:28:09,057 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 15:28:09,063 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 15:28:09,129 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 15:28:09,129 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:09,134 INFO ]: Computing forward predicates... [2018-06-22 15:28:09,736 WARN ]: Spent 371.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 24 [2018-06-22 15:28:10,159 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 15:28:10,178 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:28:10,178 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2018-06-22 15:28:10,178 INFO ]: Interpolant automaton has 20 states [2018-06-22 15:28:10,178 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-22 15:28:10,179 INFO ]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2018-06-22 15:28:10,179 INFO ]: Start difference. First operand 19 states and 20 transitions. Second operand 20 states. [2018-06-22 15:28:10,409 WARN ]: Spent 207.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2018-06-22 15:28:10,568 WARN ]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33 [2018-06-22 15:28:10,786 WARN ]: Spent 199.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2018-06-22 15:28:10,978 WARN ]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2018-06-22 15:28:11,248 WARN ]: Spent 249.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2018-06-22 15:28:11,285 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:28:11,285 INFO ]: Finished difference Result 21 states and 22 transitions. [2018-06-22 15:28:11,287 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 15:28:11,287 INFO ]: Start accepts. Automaton has 20 states. Word has length 25 [2018-06-22 15:28:11,287 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:28:11,288 INFO ]: With dead ends: 21 [2018-06-22 15:28:11,288 INFO ]: Without dead ends: 21 [2018-06-22 15:28:11,288 INFO ]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2018-06-22 15:28:11,288 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-22 15:28:11,293 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-22 15:28:11,293 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-22 15:28:11,293 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-06-22 15:28:11,293 INFO ]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 25 [2018-06-22 15:28:11,294 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:28:11,294 INFO ]: Abstraction has 21 states and 22 transitions. [2018-06-22 15:28:11,294 INFO ]: Interpolant automaton has 20 states. [2018-06-22 15:28:11,294 INFO ]: Start isEmpty. Operand 21 states and 22 transitions. [2018-06-22 15:28:11,294 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 15:28:11,294 INFO ]: Found error trace [2018-06-22 15:28:11,295 INFO ]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:28:11,295 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:28:11,295 INFO ]: Analyzing trace with hash 1986427350, now seen corresponding path program 5 times [2018-06-22 15:28:11,295 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:28:11,295 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:28:11,296 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:11,296 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 15:28:11,296 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:28:11,381 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:12,741 WARN ]: Spent 1.03 s on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2018-06-22 15:28:12,994 WARN ]: Spent 246.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2018-06-22 15:28:13,172 WARN ]: Spent 142.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34 [2018-06-22 15:28:13,492 INFO ]: Checked inductivity of 55 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-22 15:28:13,492 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:28:13,493 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 15:28:13,499 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 15:28:13,558 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-06-22 15:28:13,558 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:28:13,565 INFO ]: Computing forward predicates... Received shutdown request... [2018-06-22 15:29:14,430 WARN ]: Removed 4 from assertion stack [2018-06-22 15:29:14,430 INFO ]: Timeout while computing interpolants [2018-06-22 15:29:14,631 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 15:29:14,631 WARN ]: Verification canceled [2018-06-22 15:29:14,635 WARN ]: Timeout [2018-06-22 15:29:14,635 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:29:14 BoogieIcfgContainer [2018-06-22 15:29:14,635 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 15:29:14,636 INFO ]: Toolchain (without parser) took 71719.80 ms. Allocated memory was 306.7 MB in the beginning and 1.0 GB in the end (delta: 709.9 MB). Free memory was 258.3 MB in the beginning and 957.3 MB in the end (delta: -699.0 MB). Peak memory consumption was 848.8 MB. Max. memory is 3.6 GB. [2018-06-22 15:29:14,637 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 306.7 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 15:29:14,637 INFO ]: ChcToBoogie took 52.55 ms. Allocated memory is still 306.7 MB. Free memory was 258.3 MB in the beginning and 256.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:29:14,638 INFO ]: Boogie Preprocessor took 51.46 ms. Allocated memory is still 306.7 MB. Free memory was 256.3 MB in the beginning and 254.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:29:14,638 INFO ]: RCFGBuilder took 287.41 ms. Allocated memory is still 306.7 MB. Free memory was 254.3 MB in the beginning and 244.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:29:14,639 INFO ]: TraceAbstraction took 71302.94 ms. Allocated memory was 306.7 MB in the beginning and 1.0 GB in the end (delta: 709.9 MB). Free memory was 244.2 MB in the beginning and 957.3 MB in the end (delta: -713.1 MB). Peak memory consumption was 834.7 MB. Max. memory is 3.6 GB. [2018-06-22 15:29:14,644 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 306.7 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 52.55 ms. Allocated memory is still 306.7 MB. Free memory was 258.3 MB in the beginning and 256.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 51.46 ms. Allocated memory is still 306.7 MB. Free memory was 256.3 MB in the beginning and 254.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 287.41 ms. Allocated memory is still 306.7 MB. Free memory was 254.3 MB in the beginning and 244.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 71302.94 ms. Allocated memory was 306.7 MB in the beginning and 1.0 GB in the end (delta: 709.9 MB). Free memory was 244.2 MB in the beginning and 957.3 MB in the end (delta: -713.1 MB). Peak memory consumption was 834.7 MB. 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 30 with TraceHistMax 6, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 3797. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 71.2s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 79 SDslu, 209 SDs, 0 SdLazy, 170 SolverSat, 96 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 25940 SizeOfPredicates, 138 NumberOfNonLiveVariables, 660 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 40/140 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/rajamani_1.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_15-29-14-653.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rajamani_1.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_15-29-14-653.csv Completed graceful shutdown