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/ctigar/large_const.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 05:30:35,633 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 05:30:35,645 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 05:30:35,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 05:30:35,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 05:30:35,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 05:30:35,673 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 05:30:35,675 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 05:30:35,676 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 05:30:35,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 05:30:35,679 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 05:30:35,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 05:30:35,684 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 05:30:35,685 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 05:30:35,686 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 05:30:35,689 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 05:30:35,691 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 05:30:35,693 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 05:30:35,705 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 05:30:35,706 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 05:30:35,707 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 05:30:35,709 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 05:30:35,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 05:30:35,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 05:30:35,711 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 05:30:35,711 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 05:30:35,712 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 05:30:35,718 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 05:30:35,719 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 05:30:35,719 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 05:30:35,720 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 05:30:35,720 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 05:30:35,720 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 05:30:35,721 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 05:30:35,721 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 05:30:35,725 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 05:30:35,739 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 05:30:35,739 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 05:30:35,740 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 05:30:35,740 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 05:30:35,741 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 05:30:35,741 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 05:30:35,741 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 05:30:35,742 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 05:30:35,742 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 05:30:35,742 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 05:30:35,742 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 05:30:35,742 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 05:30:35,743 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 05:30:35,743 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 05:30:35,743 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 05:30:35,743 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 05:30:35,743 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 05:30:35,745 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 05:30:35,745 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 05:30:35,795 INFO ]: Repository-Root is: /tmp [2018-06-22 05:30:35,811 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 05:30:35,817 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 05:30:35,818 INFO ]: Initializing SmtParser... [2018-06-22 05:30:35,818 INFO ]: SmtParser initialized [2018-06-22 05:30:35,819 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/large_const.c.smt2 [2018-06-22 05:30:35,868 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 05:30:35,979 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/large_const.c.smt2 unknown [2018-06-22 05:30:36,408 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/large_const.c.smt2 [2018-06-22 05:30:36,412 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 05:30:36,423 INFO ]: Walking toolchain with 4 elements. [2018-06-22 05:30:36,423 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 05:30:36,423 INFO ]: Initializing ChcToBoogie... [2018-06-22 05:30:36,423 INFO ]: ChcToBoogie initialized [2018-06-22 05:30:36,465 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:30:36" (1/1) ... [2018-06-22 05:30:36,739 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36 Unit [2018-06-22 05:30:36,740 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 05:30:36,740 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 05:30:36,740 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 05:30:36,740 INFO ]: Boogie Preprocessor initialized [2018-06-22 05:30:36,755 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36" (1/1) ... [2018-06-22 05:30:36,755 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36" (1/1) ... [2018-06-22 05:30:36,762 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36" (1/1) ... [2018-06-22 05:30:36,762 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36" (1/1) ... [2018-06-22 05:30:36,769 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36" (1/1) ... [2018-06-22 05:30:36,771 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36" (1/1) ... [2018-06-22 05:30:36,774 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36" (1/1) ... [2018-06-22 05:30:36,784 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 05:30:36,785 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 05:30:36,785 INFO ]: Initializing RCFGBuilder... [2018-06-22 05:30:36,785 INFO ]: RCFGBuilder initialized [2018-06-22 05:30:36,786 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 05:30:36,927 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 05:30:36,927 INFO ]: Found specification of procedure gotoProc [2018-06-22 05:30:36,927 INFO ]: Found implementation of procedure gotoProc [2018-06-22 05:30:36,927 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 05:30:36,927 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 05:30:36,927 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 05:30:37,322 INFO ]: Using library mode [2018-06-22 05:30:37,322 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:30:37 BoogieIcfgContainer [2018-06-22 05:30:37,322 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 05:30:37,324 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 05:30:37,324 INFO ]: Initializing TraceAbstraction... [2018-06-22 05:30:37,633 INFO ]: TraceAbstraction initialized [2018-06-22 05:30:37,633 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:30:36" (1/3) ... [2018-06-22 05:30:37,634 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aec1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 05:30:37, skipping insertion in model container [2018-06-22 05:30:37,634 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:30:36" (2/3) ... [2018-06-22 05:30:37,634 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aec1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:30:37, skipping insertion in model container [2018-06-22 05:30:37,635 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:30:37" (3/3) ... [2018-06-22 05:30:37,636 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 05:30:37,644 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 05:30:37,652 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 05:30:37,966 INFO ]: Using default assertion order modulation [2018-06-22 05:30:37,967 INFO ]: Interprodecural is true [2018-06-22 05:30:37,967 INFO ]: Hoare is false [2018-06-22 05:30:37,967 INFO ]: Compute interpolants for FPandBP [2018-06-22 05:30:37,967 INFO ]: Backedges is TWOTRACK [2018-06-22 05:30:37,967 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 05:30:37,968 INFO ]: Difference is false [2018-06-22 05:30:37,968 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 05:30:37,968 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 05:30:38,000 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 05:30:38,044 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 05:30:38,044 INFO ]: Found error trace [2018-06-22 05:30:38,045 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:30:38,045 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:30:38,072 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 05:30:38,074 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:30:38,108 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:30:38,236 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:38,236 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:30:38,236 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:38,319 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:38,438 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:38,441 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 05:30:38,441 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 05:30:38,442 INFO ]: Interpolant automaton has 3 states [2018-06-22 05:30:38,456 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 05:30:38,456 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 05:30:38,473 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 05:30:38,574 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:30:38,574 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 05:30:38,575 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 05:30:38,577 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 05:30:38,577 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:30:38,586 INFO ]: With dead ends: 9 [2018-06-22 05:30:38,586 INFO ]: Without dead ends: 9 [2018-06-22 05:30:38,588 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 05:30:38,670 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 05:30:38,734 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 05:30:38,735 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 05:30:38,736 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 05:30:38,737 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 05:30:38,737 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:30:38,737 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 05:30:38,737 INFO ]: Interpolant automaton has 3 states. [2018-06-22 05:30:38,737 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 05:30:38,737 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 05:30:38,737 INFO ]: Found error trace [2018-06-22 05:30:38,738 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:30:38,738 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:30:38,738 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 05:30:38,738 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:30:38,738 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:30:38,739 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:38,739 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:30:38,739 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:38,841 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:39,048 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:39,049 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:30:39,049 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 05:30:39,056 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:30:39,143 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:39,155 INFO ]: Computing forward predicates... [2018-06-22 05:30:39,697 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:39,732 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:30:39,732 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-22 05:30:39,733 INFO ]: Interpolant automaton has 5 states [2018-06-22 05:30:39,733 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 05:30:39,733 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 05:30:39,733 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-22 05:30:39,974 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:30:39,974 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 05:30:39,974 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 05:30:39,975 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-22 05:30:39,975 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:30:39,975 INFO ]: With dead ends: 10 [2018-06-22 05:30:39,975 INFO ]: Without dead ends: 10 [2018-06-22 05:30:39,976 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:30:39,976 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 05:30:39,977 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 05:30:39,977 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 05:30:39,977 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 05:30:39,977 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 05:30:39,977 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:30:39,977 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 05:30:39,978 INFO ]: Interpolant automaton has 5 states. [2018-06-22 05:30:39,978 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 05:30:39,978 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 05:30:39,978 INFO ]: Found error trace [2018-06-22 05:30:39,978 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:30:39,978 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:30:39,978 INFO ]: Analyzing trace with hash -2043975570, now seen corresponding path program 2 times [2018-06-22 05:30:39,978 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:30:39,978 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:30:39,981 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:39,981 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:30:39,981 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:40,091 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:40,416 WARN ]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-22 05:30:40,645 WARN ]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-22 05:30:40,646 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:40,647 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:30:40,647 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:30:40,664 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 05:30:40,771 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 05:30:40,771 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:40,774 INFO ]: Computing forward predicates... [2018-06-22 05:30:47,735 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:47,769 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:30:47,769 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-22 05:30:47,769 INFO ]: Interpolant automaton has 6 states [2018-06-22 05:30:47,769 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 05:30:47,769 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:30:47,769 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2018-06-22 05:30:48,518 WARN ]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-06-22 05:30:48,581 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:30:48,581 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 05:30:48,583 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 05:30:48,583 INFO ]: Start accepts. Automaton has 6 states. Word has length 9 [2018-06-22 05:30:48,583 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:30:48,584 INFO ]: With dead ends: 11 [2018-06-22 05:30:48,584 INFO ]: Without dead ends: 11 [2018-06-22 05:30:48,584 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-06-22 05:30:48,584 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 05:30:48,585 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 05:30:48,585 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 05:30:48,586 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 05:30:48,586 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-22 05:30:48,586 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:30:48,586 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 05:30:48,586 INFO ]: Interpolant automaton has 6 states. [2018-06-22 05:30:48,586 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 05:30:48,586 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 05:30:48,586 INFO ]: Found error trace [2018-06-22 05:30:48,586 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:30:48,586 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:30:48,587 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 3 times [2018-06-22 05:30:48,587 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:30:48,587 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:30:48,587 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:48,587 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:30:48,588 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:48,662 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:49,043 WARN ]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 05:30:49,286 WARN ]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-22 05:30:49,408 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:49,408 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:30:49,408 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:30:49,414 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 05:30:49,510 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 05:30:49,510 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:49,515 INFO ]: Computing forward predicates... [2018-06-22 05:30:50,139 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:50,163 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:30:50,163 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-06-22 05:30:50,163 INFO ]: Interpolant automaton has 6 states [2018-06-22 05:30:50,163 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 05:30:50,163 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:30:50,163 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2018-06-22 05:30:50,342 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:30:50,342 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-22 05:30:50,342 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 05:30:50,342 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-22 05:30:50,342 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:30:50,342 INFO ]: With dead ends: 12 [2018-06-22 05:30:50,342 INFO ]: Without dead ends: 12 [2018-06-22 05:30:50,343 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-06-22 05:30:50,343 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-22 05:30:50,344 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-22 05:30:50,344 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-22 05:30:50,345 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-22 05:30:50,345 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-22 05:30:50,345 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:30:50,345 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-22 05:30:50,345 INFO ]: Interpolant automaton has 6 states. [2018-06-22 05:30:50,346 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-22 05:30:50,346 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 05:30:50,346 INFO ]: Found error trace [2018-06-22 05:30:50,346 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:30:50,346 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:30:50,346 INFO ]: Analyzing trace with hash -1433955954, now seen corresponding path program 4 times [2018-06-22 05:30:50,346 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:30:50,346 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:30:50,347 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:50,347 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:30:50,347 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:50,407 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:50,617 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:50,617 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:30:50,617 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:30:50,623 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 05:30:50,717 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 05:30:50,717 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:50,721 INFO ]: Computing forward predicates... [2018-06-22 05:30:51,380 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:51,403 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:30:51,405 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-06-22 05:30:51,405 INFO ]: Interpolant automaton has 8 states [2018-06-22 05:30:51,406 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 05:30:51,406 INFO ]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-06-22 05:30:51,406 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 8 states. [2018-06-22 05:30:51,656 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:30:51,657 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 05:30:51,657 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 05:30:51,657 INFO ]: Start accepts. Automaton has 8 states. Word has length 11 [2018-06-22 05:30:51,657 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:30:51,657 INFO ]: With dead ends: 13 [2018-06-22 05:30:51,657 INFO ]: Without dead ends: 13 [2018-06-22 05:30:51,659 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-06-22 05:30:51,659 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 05:30:51,660 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 05:30:51,660 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 05:30:51,661 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 05:30:51,661 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-06-22 05:30:51,661 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:30:51,661 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 05:30:51,661 INFO ]: Interpolant automaton has 8 states. [2018-06-22 05:30:51,661 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 05:30:51,661 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 05:30:51,661 INFO ]: Found error trace [2018-06-22 05:30:51,661 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:30:51,661 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:30:51,661 INFO ]: Analyzing trace with hash -1502133097, now seen corresponding path program 5 times [2018-06-22 05:30:51,661 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:30:51,661 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:30:51,662 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:51,662 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:30:51,662 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:30:51,717 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:52,488 WARN ]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-06-22 05:30:52,731 WARN ]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-22 05:30:52,993 WARN ]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 05:30:53,043 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:30:53,043 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:30:53,043 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:30:53,050 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 05:30:53,173 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-06-22 05:30:53,173 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:30:53,178 INFO ]: Computing forward predicates... [2018-06-22 05:30:55,787 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:03,662 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:31:03,684 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:31:03,684 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-06-22 05:31:03,684 INFO ]: Interpolant automaton has 9 states [2018-06-22 05:31:03,685 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 05:31:03,685 INFO ]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-06-22 05:31:03,685 INFO ]: Start difference. First operand 13 states and 13 transitions. Second operand 9 states. [2018-06-22 05:31:03,914 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:31:03,914 INFO ]: Finished difference Result 14 states and 14 transitions. [2018-06-22 05:31:03,914 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 05:31:03,914 INFO ]: Start accepts. Automaton has 9 states. Word has length 12 [2018-06-22 05:31:03,914 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:31:03,914 INFO ]: With dead ends: 14 [2018-06-22 05:31:03,914 INFO ]: Without dead ends: 14 [2018-06-22 05:31:03,915 INFO ]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-06-22 05:31:03,915 INFO ]: Start minimizeSevpa. Operand 14 states. [2018-06-22 05:31:03,916 INFO ]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-06-22 05:31:03,917 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-22 05:31:03,917 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-06-22 05:31:03,917 INFO ]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-06-22 05:31:03,917 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:31:03,917 INFO ]: Abstraction has 14 states and 14 transitions. [2018-06-22 05:31:03,917 INFO ]: Interpolant automaton has 9 states. [2018-06-22 05:31:03,917 INFO ]: Start isEmpty. Operand 14 states and 14 transitions. [2018-06-22 05:31:03,918 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 05:31:03,918 INFO ]: Found error trace [2018-06-22 05:31:03,918 INFO ]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:31:03,918 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:31:03,918 INFO ]: Analyzing trace with hash 679342766, now seen corresponding path program 6 times [2018-06-22 05:31:03,918 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:31:03,918 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:31:03,919 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:31:03,919 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:31:03,919 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:31:03,984 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:31:04,325 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:31:04,325 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:31:04,325 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:31:04,331 INFO ]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-06-22 05:31:04,423 INFO ]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-06-22 05:31:04,423 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:31:04,428 INFO ]: Computing forward predicates... [2018-06-22 05:31:36,276 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,344 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,529 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,538 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,553 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,620 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,684 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,745 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,772 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,793 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:36,804 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:37,006 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:37,077 WARN ]: Simplifying disjunction of 5527 conjuctions. This might take some time... [2018-06-22 05:31:38,990 INFO ]: Simplified to disjunction of 5527 conjuctions. [2018-06-22 05:31:39,212 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:31:39,479 WARN ]: expecting exponential blowup for input size 6 Received shutdown request... [2018-06-22 05:31:39,806 INFO ]: Timeout while computing interpolants [2018-06-22 05:31:40,007 WARN ]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:31:40,007 WARN ]: Verification canceled [2018-06-22 05:31:40,099 WARN ]: Timeout [2018-06-22 05:31:40,100 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:31:40 BoogieIcfgContainer [2018-06-22 05:31:40,100 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 05:31:40,135 INFO ]: Toolchain (without parser) took 63722.25 ms. Allocated memory was 308.3 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 254.9 MB in the beginning and 1.2 GB in the end (delta: -901.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 05:31:40,136 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 05:31:40,136 INFO ]: ChcToBoogie took 316.69 ms. Allocated memory is still 308.3 MB. Free memory was 254.9 MB in the beginning and 250.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:31:40,137 INFO ]: Boogie Preprocessor took 43.87 ms. Allocated memory is still 308.3 MB. Free memory is still 250.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 05:31:40,137 INFO ]: RCFGBuilder took 537.73 ms. Allocated memory is still 308.3 MB. Free memory was 250.9 MB in the beginning and 234.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:31:40,138 INFO ]: TraceAbstraction took 62775.88 ms. Allocated memory was 308.3 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 233.9 MB in the beginning and 1.2 GB in the end (delta: -922.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 05:31:40,141 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 316.69 ms. Allocated memory is still 308.3 MB. Free memory was 254.9 MB in the beginning and 250.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 43.87 ms. Allocated memory is still 308.3 MB. Free memory is still 250.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * RCFGBuilder took 537.73 ms. Allocated memory is still 308.3 MB. Free memory was 250.9 MB in the beginning and 234.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 62775.88 ms. Allocated memory was 308.3 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 233.9 MB in the beginning and 1.2 GB in the end (delta: -922.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 6, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was transforming 3 conjuction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 62.1s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 11 SDslu, 97 SDs, 0 SdLazy, 40 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 40 SyntacticMatches, 13 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=6, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 22.4s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3407 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1310 ConjunctsInSsa, 153 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/70 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/large_const.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_05-31-40-153.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/large_const.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_05-31-40-153.csv Completed graceful shutdown