java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/cav12/pipeline.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 04:30:13,616 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 04:30:13,619 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 04:30:13,632 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 04:30:13,633 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 04:30:13,633 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 04:30:13,635 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 04:30:13,637 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 04:30:13,638 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 04:30:13,639 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 04:30:13,641 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 04:30:13,641 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 04:30:13,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 04:30:13,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 04:30:13,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 04:30:13,647 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 04:30:13,649 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 04:30:13,650 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 04:30:13,663 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 04:30:13,664 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 04:30:13,665 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 04:30:13,667 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 04:30:13,667 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 04:30:13,667 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 04:30:13,668 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 04:30:13,669 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 04:30:13,669 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 04:30:13,675 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 04:30:13,676 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 04:30:13,676 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 04:30:13,677 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 04:30:13,677 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 04:30:13,678 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 04:30:13,678 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 04:30:13,679 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 04:30:13,679 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 04:30:13,702 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 04:30:13,703 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 04:30:13,704 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 04:30:13,704 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 04:30:13,705 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 04:30:13,706 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 04:30:13,706 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 04:30:13,706 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 04:30:13,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 04:30:13,706 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 04:30:13,707 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 04:30:13,707 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 04:30:13,707 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 04:30:13,707 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 04:30:13,707 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 04:30:13,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 04:30:13,709 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 04:30:13,710 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 04:30:13,710 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 04:30:13,758 INFO ]: Repository-Root is: /tmp [2018-06-22 04:30:13,773 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 04:30:13,779 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 04:30:13,781 INFO ]: Initializing SmtParser... [2018-06-22 04:30:13,782 INFO ]: SmtParser initialized [2018-06-22 04:30:13,782 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/pipeline.smt2 [2018-06-22 04:30:13,784 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 04:30:13,882 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/pipeline.smt2 unknown [2018-06-22 04:30:15,050 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/pipeline.smt2 [2018-06-22 04:30:15,054 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 04:30:15,066 INFO ]: Walking toolchain with 4 elements. [2018-06-22 04:30:15,066 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 04:30:15,066 INFO ]: Initializing ChcToBoogie... [2018-06-22 04:30:15,066 INFO ]: ChcToBoogie initialized [2018-06-22 04:30:15,069 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:30:15" (1/1) ... [2018-06-22 04:30:15,173 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15 Unit [2018-06-22 04:30:15,173 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 04:30:15,173 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 04:30:15,173 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 04:30:15,174 INFO ]: Boogie Preprocessor initialized [2018-06-22 04:30:15,193 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15" (1/1) ... [2018-06-22 04:30:15,193 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15" (1/1) ... [2018-06-22 04:30:15,209 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15" (1/1) ... [2018-06-22 04:30:15,209 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15" (1/1) ... [2018-06-22 04:30:15,234 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15" (1/1) ... [2018-06-22 04:30:15,236 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15" (1/1) ... [2018-06-22 04:30:15,243 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15" (1/1) ... [2018-06-22 04:30:15,252 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 04:30:15,253 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 04:30:15,253 INFO ]: Initializing RCFGBuilder... [2018-06-22 04:30:15,253 INFO ]: RCFGBuilder initialized [2018-06-22 04:30:15,253 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 04:30:15,264 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 04:30:15,264 INFO ]: Found specification of procedure gotoProc [2018-06-22 04:30:15,264 INFO ]: Found implementation of procedure gotoProc [2018-06-22 04:30:15,264 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 04:30:15,264 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 04:30:15,264 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 04:30:16,013 INFO ]: Using library mode [2018-06-22 04:30:16,014 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:30:16 BoogieIcfgContainer [2018-06-22 04:30:16,014 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 04:30:16,015 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 04:30:16,015 INFO ]: Initializing TraceAbstraction... [2018-06-22 04:30:16,018 INFO ]: TraceAbstraction initialized [2018-06-22 04:30:16,018 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:30:15" (1/3) ... [2018-06-22 04:30:16,019 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2d1fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 04:30:16, skipping insertion in model container [2018-06-22 04:30:16,019 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:30:15" (2/3) ... [2018-06-22 04:30:16,019 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2d1fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:30:16, skipping insertion in model container [2018-06-22 04:30:16,019 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:30:16" (3/3) ... [2018-06-22 04:30:16,021 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 04:30:16,037 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 04:30:16,044 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 04:30:16,079 INFO ]: Using default assertion order modulation [2018-06-22 04:30:16,079 INFO ]: Interprodecural is true [2018-06-22 04:30:16,079 INFO ]: Hoare is false [2018-06-22 04:30:16,079 INFO ]: Compute interpolants for FPandBP [2018-06-22 04:30:16,079 INFO ]: Backedges is TWOTRACK [2018-06-22 04:30:16,080 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 04:30:16,080 INFO ]: Difference is false [2018-06-22 04:30:16,080 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 04:30:16,080 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 04:30:16,093 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 04:30:16,103 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 04:30:16,103 INFO ]: Found error trace [2018-06-22 04:30:16,104 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:30:16,104 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:30:16,108 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 04:30:16,109 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:30:16,109 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:30:16,140 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:30:16,141 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:30:16,141 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:30:16,252 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:30:16,387 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:30:16,388 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 04:30:16,388 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 04:30:16,390 INFO ]: Interpolant automaton has 3 states [2018-06-22 04:30:16,400 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 04:30:16,400 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:30:16,403 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 04:30:16,542 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:30:16,542 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 04:30:16,544 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 04:30:16,545 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 04:30:16,546 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:30:16,556 INFO ]: With dead ends: 9 [2018-06-22 04:30:16,556 INFO ]: Without dead ends: 9 [2018-06-22 04:30:16,560 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:30:16,578 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 04:30:16,605 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 04:30:16,607 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 04:30:16,607 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 04:30:16,608 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 04:30:16,608 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:30:16,608 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 04:30:16,608 INFO ]: Interpolant automaton has 3 states. [2018-06-22 04:30:16,608 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 04:30:16,609 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 04:30:16,609 INFO ]: Found error trace [2018-06-22 04:30:16,609 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:30:16,609 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:30:16,609 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 04:30:16,609 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:30:16,609 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:30:16,610 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:30:16,610 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:30:16,610 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:30:16,777 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:30:17,329 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:30:17,329 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:30:17,329 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 04:30:17,346 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 04:30:17,560 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:30:17,580 INFO ]: Computing forward predicates... [2018-06-22 04:30:18,394 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:30:18,430 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:30:18,430 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 04:30:18,431 INFO ]: Interpolant automaton has 6 states [2018-06-22 04:30:18,431 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 04:30:18,431 INFO ]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:30:18,431 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 04:30:18,612 WARN ]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 04:30:18,763 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:30:18,763 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 04:30:18,764 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 04:30:18,764 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 04:30:18,764 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:30:18,765 INFO ]: With dead ends: 11 [2018-06-22 04:30:18,765 INFO ]: Without dead ends: 11 [2018-06-22 04:30:18,765 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-06-22 04:30:18,766 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 04:30:18,767 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 04:30:18,767 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 04:30:18,767 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 04:30:18,767 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 04:30:18,767 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:30:18,767 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 04:30:18,767 INFO ]: Interpolant automaton has 6 states. [2018-06-22 04:30:18,767 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 04:30:18,768 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 04:30:18,768 INFO ]: Found error trace [2018-06-22 04:30:18,768 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:30:18,768 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:30:18,768 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-22 04:30:18,768 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:30:18,768 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:30:18,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:30:18,770 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:30:18,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:30:19,079 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:30:19,884 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:30:19,884 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:30:19,884 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:30:19,890 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 04:30:20,244 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 04:30:20,244 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:30:20,276 INFO ]: Computing forward predicates... [2018-06-22 04:30:20,496 WARN ]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-06-22 04:30:25,249 WARN ]: Simplifying disjunction of 6561 conjuctions. This might take some time... [2018-06-22 04:30:29,574 INFO ]: Simplified to disjunction of 6561 conjuctions. [2018-06-22 04:30:29,644 WARN ]: Simplifying disjunction of 6561 conjuctions. This might take some time... [2018-06-22 04:30:34,215 INFO ]: Simplified to disjunction of 6561 conjuctions. [2018-06-22 04:30:34,389 WARN ]: Simplifying disjunction of 10935 conjuctions. This might take some time... [2018-06-22 04:30:56,805 INFO ]: Simplified to disjunction of 10935 conjuctions. [2018-06-22 04:30:57,013 WARN ]: Simplifying disjunction of 10935 conjuctions. This might take some time... [2018-06-22 04:31:10,631 INFO ]: Simplified to disjunction of 10935 conjuctions. [2018-06-22 04:31:10,769 WARN ]: Simplifying disjunction of 18225 conjuctions. This might take some time... Received shutdown request... [2018-06-22 04:31:32,120 INFO ]: Timeout while computing interpolants [2018-06-22 04:31:32,321 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:31:32,321 WARN ]: Verification canceled [2018-06-22 04:31:32,329 WARN ]: Timeout [2018-06-22 04:31:32,330 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:31:32 BoogieIcfgContainer [2018-06-22 04:31:32,330 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 04:31:32,331 INFO ]: Toolchain (without parser) took 77276.47 ms. Allocated memory was 325.6 MB in the beginning and 612.4 MB in the end (delta: 286.8 MB). Free memory was 264.1 MB in the beginning and 405.4 MB in the end (delta: -141.2 MB). Peak memory consumption was 388.6 MB. Max. memory is 3.6 GB. [2018-06-22 04:31:32,333 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 04:31:32,333 INFO ]: ChcToBoogie took 106.99 ms. Allocated memory is still 325.6 MB. Free memory was 264.1 MB in the beginning and 259.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 3.6 GB. [2018-06-22 04:31:32,334 INFO ]: Boogie Preprocessor took 78.59 ms. Allocated memory is still 325.6 MB. Free memory was 259.5 MB in the beginning and 256.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. [2018-06-22 04:31:32,335 INFO ]: RCFGBuilder took 761.21 ms. Allocated memory was 325.6 MB in the beginning and 368.1 MB in the end (delta: 42.5 MB). Free memory was 256.4 MB in the beginning and 322.1 MB in the end (delta: -65.6 MB). Peak memory consumption was 83.8 MB. Max. memory is 3.6 GB. [2018-06-22 04:31:32,335 INFO ]: TraceAbstraction took 76314.86 ms. Allocated memory was 368.1 MB in the beginning and 612.4 MB in the end (delta: 244.3 MB). Free memory was 322.1 MB in the beginning and 405.4 MB in the end (delta: -83.3 MB). Peak memory consumption was 404.1 MB. Max. memory is 3.6 GB. [2018-06-22 04:31:32,341 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 106.99 ms. Allocated memory is still 325.6 MB. Free memory was 264.1 MB in the beginning and 259.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 78.59 ms. Allocated memory is still 325.6 MB. Free memory was 259.5 MB in the beginning and 256.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. * RCFGBuilder took 761.21 ms. Allocated memory was 325.6 MB in the beginning and 368.1 MB in the end (delta: 42.5 MB). Free memory was 256.4 MB in the beginning and 322.1 MB in the end (delta: -65.6 MB). Peak memory consumption was 83.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 76314.86 ms. Allocated memory was 368.1 MB in the beginning and 612.4 MB in the end (delta: 244.3 MB). Free memory was 322.1 MB in the beginning and 405.4 MB in the end (delta: -83.3 MB). Peak memory consumption was 404.1 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 11 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 18225 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 76.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 15 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 542 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/pipeline.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_04-31-32-357.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/pipeline.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_04-31-32-357.csv Completed graceful shutdown