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/bist_cell.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 04:15:24,662 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 04:15:24,664 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 04:15:24,676 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 04:15:24,677 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 04:15:24,678 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 04:15:24,680 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 04:15:24,681 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 04:15:24,683 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 04:15:24,683 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 04:15:24,686 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 04:15:24,686 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 04:15:24,687 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 04:15:24,688 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 04:15:24,689 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 04:15:24,689 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 04:15:24,691 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 04:15:24,693 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 04:15:24,694 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 04:15:24,695 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 04:15:24,696 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 04:15:24,699 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 04:15:24,699 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 04:15:24,699 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 04:15:24,700 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 04:15:24,701 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 04:15:24,702 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 04:15:24,702 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 04:15:24,703 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 04:15:24,704 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 04:15:24,704 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 04:15:24,705 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 04:15:24,705 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 04:15:24,706 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 04:15:24,707 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 04:15:24,707 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 04:15:24,720 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 04:15:24,720 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 04:15:24,720 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 04:15:24,720 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 04:15:24,721 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 04:15:24,722 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 04:15:24,722 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 04:15:24,722 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 04:15:24,722 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 04:15:24,722 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 04:15:24,722 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 04:15:24,723 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 04:15:24,723 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 04:15:24,723 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 04:15:24,723 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 04:15:24,723 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 04:15:24,724 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 04:15:24,725 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 04:15:24,725 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 04:15:24,764 INFO ]: Repository-Root is: /tmp [2018-06-22 04:15:24,777 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 04:15:24,780 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 04:15:24,781 INFO ]: Initializing SmtParser... [2018-06-22 04:15:24,781 INFO ]: SmtParser initialized [2018-06-22 04:15:24,782 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/bist_cell.smt2 [2018-06-22 04:15:24,785 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 04:15:24,879 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/bist_cell.smt2 unknown [2018-06-22 04:15:25,320 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/bist_cell.smt2 [2018-06-22 04:15:25,324 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 04:15:25,339 INFO ]: Walking toolchain with 4 elements. [2018-06-22 04:15:25,339 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 04:15:25,339 INFO ]: Initializing ChcToBoogie... [2018-06-22 04:15:25,339 INFO ]: ChcToBoogie initialized [2018-06-22 04:15:25,342 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:15:25" (1/1) ... [2018-06-22 04:15:25,442 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25 Unit [2018-06-22 04:15:25,442 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 04:15:25,442 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 04:15:25,442 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 04:15:25,442 INFO ]: Boogie Preprocessor initialized [2018-06-22 04:15:25,472 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25" (1/1) ... [2018-06-22 04:15:25,472 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25" (1/1) ... [2018-06-22 04:15:25,490 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25" (1/1) ... [2018-06-22 04:15:25,490 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25" (1/1) ... [2018-06-22 04:15:25,500 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25" (1/1) ... [2018-06-22 04:15:25,501 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25" (1/1) ... [2018-06-22 04:15:25,504 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25" (1/1) ... [2018-06-22 04:15:25,507 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 04:15:25,508 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 04:15:25,508 INFO ]: Initializing RCFGBuilder... [2018-06-22 04:15:25,508 INFO ]: RCFGBuilder initialized [2018-06-22 04:15:25,510 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25" (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 04:15:25,524 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 04:15:25,524 INFO ]: Found specification of procedure gotoProc [2018-06-22 04:15:25,524 INFO ]: Found implementation of procedure gotoProc [2018-06-22 04:15:25,524 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 04:15:25,524 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 04:15:25,524 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 04:15:25,831 INFO ]: Using library mode [2018-06-22 04:15:25,832 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:15:25 BoogieIcfgContainer [2018-06-22 04:15:25,832 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 04:15:25,834 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 04:15:25,834 INFO ]: Initializing TraceAbstraction... [2018-06-22 04:15:25,842 INFO ]: TraceAbstraction initialized [2018-06-22 04:15:25,842 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:15:25" (1/3) ... [2018-06-22 04:15:25,843 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aeefdce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 04:15:25, skipping insertion in model container [2018-06-22 04:15:25,843 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:15:25" (2/3) ... [2018-06-22 04:15:25,843 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aeefdce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:15:25, skipping insertion in model container [2018-06-22 04:15:25,843 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:15:25" (3/3) ... [2018-06-22 04:15:25,845 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 04:15:25,854 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 04:15:25,862 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 04:15:25,912 INFO ]: Using default assertion order modulation [2018-06-22 04:15:25,912 INFO ]: Interprodecural is true [2018-06-22 04:15:25,912 INFO ]: Hoare is false [2018-06-22 04:15:25,912 INFO ]: Compute interpolants for FPandBP [2018-06-22 04:15:25,912 INFO ]: Backedges is TWOTRACK [2018-06-22 04:15:25,912 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 04:15:25,912 INFO ]: Difference is false [2018-06-22 04:15:25,912 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 04:15:25,912 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 04:15:25,925 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 04:15:25,939 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 04:15:25,939 INFO ]: Found error trace [2018-06-22 04:15:25,940 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:15:25,941 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:15:25,946 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 04:15:25,947 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:15:25,947 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:15:25,980 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:15:25,980 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:15:25,980 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:15:26,049 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:15:26,137 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:15:26,139 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 04:15:26,139 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 04:15:26,140 INFO ]: Interpolant automaton has 3 states [2018-06-22 04:15:26,152 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 04:15:26,152 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:15:26,154 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 04:15:26,243 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:15:26,243 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 04:15:26,243 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 04:15:26,244 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 04:15:26,244 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:15:26,251 INFO ]: With dead ends: 9 [2018-06-22 04:15:26,251 INFO ]: Without dead ends: 9 [2018-06-22 04:15:26,252 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 04:15:26,265 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 04:15:26,288 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 04:15:26,298 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 04:15:26,299 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 04:15:26,301 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 04:15:26,301 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:15:26,301 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 04:15:26,301 INFO ]: Interpolant automaton has 3 states. [2018-06-22 04:15:26,301 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 04:15:26,301 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 04:15:26,301 INFO ]: Found error trace [2018-06-22 04:15:26,301 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:15:26,301 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:15:26,301 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 04:15:26,301 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:15:26,302 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:15:26,302 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:15:26,302 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:15:26,302 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:15:26,419 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:15:26,646 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:15:26,646 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:15:26,646 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:15:26,677 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:15:26,799 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:15:26,812 INFO ]: Computing forward predicates... [2018-06-22 04:15:27,139 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:15:27,160 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:15:27,160 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 04:15:27,161 INFO ]: Interpolant automaton has 6 states [2018-06-22 04:15:27,161 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 04:15:27,161 INFO ]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:15:27,161 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 04:15:27,234 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:15:27,234 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 04:15:27,234 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 04:15:27,234 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 04:15:27,235 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:15:27,235 INFO ]: With dead ends: 10 [2018-06-22 04:15:27,235 INFO ]: Without dead ends: 10 [2018-06-22 04:15:27,236 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:15:27,236 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 04:15:27,237 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 04:15:27,237 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 04:15:27,237 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 04:15:27,237 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 04:15:27,238 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:15:27,238 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 04:15:27,238 INFO ]: Interpolant automaton has 6 states. [2018-06-22 04:15:27,238 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 04:15:27,238 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 04:15:27,238 INFO ]: Found error trace [2018-06-22 04:15:27,238 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:15:27,238 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:15:27,238 INFO ]: Analyzing trace with hash -2043975570, now seen corresponding path program 2 times [2018-06-22 04:15:27,238 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:15:27,238 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:15:27,239 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:15:27,239 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:15:27,239 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:15:27,307 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:15:27,518 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:15:27,518 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:15:27,518 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 04:15:27,526 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 04:15:27,646 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 04:15:27,646 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:15:27,655 INFO ]: Computing forward predicates... [2018-06-22 04:15:27,852 WARN ]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-06-22 04:15:32,391 WARN ]: Simplifying disjunction of 6250 conjuctions. This might take some time... [2018-06-22 04:15:36,509 INFO ]: Simplified to disjunction of 6250 conjuctions. [2018-06-22 04:15:36,594 WARN ]: Simplifying disjunction of 6250 conjuctions. This might take some time... [2018-06-22 04:15:40,900 INFO ]: Simplified to disjunction of 6250 conjuctions. [2018-06-22 04:15:40,958 WARN ]: Simplifying disjunction of 6250 conjuctions. This might take some time... [2018-06-22 04:15:45,527 INFO ]: Simplified to disjunction of 6250 conjuctions. [2018-06-22 04:15:45,573 WARN ]: Simplifying disjunction of 6250 conjuctions. This might take some time... [2018-06-22 04:15:50,469 INFO ]: Simplified to disjunction of 6250 conjuctions. [2018-06-22 04:15:50,544 WARN ]: Simplifying disjunction of 6250 conjuctions. This might take some time... [2018-06-22 04:15:56,348 INFO ]: Simplified to disjunction of 6250 conjuctions. [2018-06-22 04:15:56,442 WARN ]: Simplifying disjunction of 10310 conjuctions. This might take some time... [2018-06-22 04:16:20,181 INFO ]: Simplified to disjunction of 10310 conjuctions. [2018-06-22 04:16:20,294 WARN ]: Simplifying disjunction of 10310 conjuctions. This might take some time... [2018-06-22 04:16:38,605 INFO ]: Simplified to disjunction of 10310 conjuctions. [2018-06-22 04:16:38,789 WARN ]: Simplifying disjunction of 20620 conjuctions. This might take some time... Received shutdown request... [2018-06-22 04:16:47,126 INFO ]: Timeout while computing interpolants [2018-06-22 04:16:47,326 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:16:47,327 WARN ]: Verification canceled [2018-06-22 04:16:47,330 WARN ]: Timeout [2018-06-22 04:16:47,330 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:16:47 BoogieIcfgContainer [2018-06-22 04:16:47,330 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 04:16:47,331 INFO ]: Toolchain (without parser) took 82006.79 ms. Allocated memory was 309.3 MB in the beginning and 418.4 MB in the end (delta: 109.1 MB). Free memory was 250.8 MB in the beginning and 336.9 MB in the end (delta: -86.1 MB). Peak memory consumption was 162.5 MB. Max. memory is 3.6 GB. [2018-06-22 04:16:47,332 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 04:16:47,332 INFO ]: ChcToBoogie took 102.85 ms. Allocated memory is still 309.3 MB. Free memory was 249.8 MB in the beginning and 247.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:16:47,338 INFO ]: Boogie Preprocessor took 65.00 ms. Allocated memory is still 309.3 MB. Free memory was 247.8 MB in the beginning and 245.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:16:47,339 INFO ]: RCFGBuilder took 324.19 ms. Allocated memory is still 309.3 MB. Free memory was 245.8 MB in the beginning and 222.8 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:16:47,339 INFO ]: TraceAbstraction took 81496.32 ms. Allocated memory was 309.3 MB in the beginning and 418.4 MB in the end (delta: 109.1 MB). Free memory was 221.8 MB in the beginning and 336.9 MB in the end (delta: -115.1 MB). Peak memory consumption was 133.5 MB. Max. memory is 3.6 GB. [2018-06-22 04:16:47,343 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 102.85 ms. Allocated memory is still 309.3 MB. Free memory was 249.8 MB in the beginning and 247.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 65.00 ms. Allocated memory is still 309.3 MB. Free memory was 247.8 MB in the beginning and 245.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 324.19 ms. Allocated memory is still 309.3 MB. Free memory was 245.8 MB in the beginning and 222.8 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 81496.32 ms. Allocated memory was 309.3 MB in the beginning and 418.4 MB in the end (delta: 109.1 MB). Free memory was 221.8 MB in the beginning and 336.9 MB in the end (delta: -115.1 MB). Peak memory consumption was 133.5 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 10 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 20620 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 81.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 15 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, 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, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 190 SizeOfPredicates, 0 NumberOfNonLiveVariables, 249 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/bist_cell.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_04-16-47-365.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bist_cell.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_04-16-47-365.csv Completed graceful shutdown