java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_1_e2_1102.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 19:04:32,792 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 19:04:32,794 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 19:04:32,806 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 19:04:32,807 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 19:04:32,808 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 19:04:32,809 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 19:04:32,811 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 19:04:32,813 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 19:04:32,815 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 19:04:32,816 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 19:04:32,816 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 19:04:32,817 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 19:04:32,818 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 19:04:32,822 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 19:04:32,823 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 19:04:32,825 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 19:04:32,837 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 19:04:32,839 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 19:04:32,840 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 19:04:32,841 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 19:04:32,843 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 19:04:32,843 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 19:04:32,843 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 19:04:32,844 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 19:04:32,845 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 19:04:32,849 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 19:04:32,850 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 19:04:32,851 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 19:04:32,851 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 19:04:32,851 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 19:04:32,858 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 19:04:32,859 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 19:04:32,859 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 19:04:32,860 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 19:04:32,860 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 19:04:32,879 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 19:04:32,879 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 19:04:32,880 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 19:04:32,880 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 19:04:32,881 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 19:04:32,881 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 19:04:32,881 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 19:04:32,882 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 19:04:32,882 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 19:04:32,882 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 19:04:32,882 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 19:04:32,882 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 19:04:32,882 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 19:04:32,883 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 19:04:32,883 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 19:04:32,883 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 19:04:32,883 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 19:04:32,883 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 19:04:32,884 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 19:04:32,886 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 19:04:32,886 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 19:04:32,932 INFO ]: Repository-Root is: /tmp [2018-06-22 19:04:32,946 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 19:04:32,949 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 19:04:32,951 INFO ]: Initializing SmtParser... [2018-06-22 19:04:32,951 INFO ]: SmtParser initialized [2018-06-22 19:04:32,952 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_1_e2_1102.smt2 [2018-06-22 19:04:32,953 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 19:04:33,043 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_1_e2_1102.smt2 unknown [2018-06-22 19:04:33,581 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_1_e2_1102.smt2 [2018-06-22 19:04:33,585 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 19:04:33,590 INFO ]: Walking toolchain with 4 elements. [2018-06-22 19:04:33,591 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 19:04:33,591 INFO ]: Initializing ChcToBoogie... [2018-06-22 19:04:33,591 INFO ]: ChcToBoogie initialized [2018-06-22 19:04:33,594 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:04:33" (1/1) ... [2018-06-22 19:04:33,655 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33 Unit [2018-06-22 19:04:33,655 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 19:04:33,655 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 19:04:33,655 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 19:04:33,656 INFO ]: Boogie Preprocessor initialized [2018-06-22 19:04:33,693 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33" (1/1) ... [2018-06-22 19:04:33,694 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33" (1/1) ... [2018-06-22 19:04:33,705 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33" (1/1) ... [2018-06-22 19:04:33,705 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33" (1/1) ... [2018-06-22 19:04:33,721 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33" (1/1) ... [2018-06-22 19:04:33,722 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33" (1/1) ... [2018-06-22 19:04:33,725 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33" (1/1) ... [2018-06-22 19:04:33,736 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 19:04:33,737 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 19:04:33,737 INFO ]: Initializing RCFGBuilder... [2018-06-22 19:04:33,737 INFO ]: RCFGBuilder initialized [2018-06-22 19:04:33,738 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33" (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 19:04:33,749 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 19:04:33,749 INFO ]: Found specification of procedure False [2018-06-22 19:04:33,749 INFO ]: Found implementation of procedure False [2018-06-22 19:04:33,749 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 19:04:33,749 INFO ]: Found specification of procedure state [2018-06-22 19:04:33,749 INFO ]: Found implementation of procedure state [2018-06-22 19:04:33,749 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 19:04:33,750 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 19:04:33,750 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 19:04:34,115 INFO ]: Using library mode [2018-06-22 19:04:34,116 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:04:34 BoogieIcfgContainer [2018-06-22 19:04:34,116 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 19:04:34,119 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 19:04:34,119 INFO ]: Initializing TraceAbstraction... [2018-06-22 19:04:34,124 INFO ]: TraceAbstraction initialized [2018-06-22 19:04:34,124 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:04:33" (1/3) ... [2018-06-22 19:04:34,125 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3930ec89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 07:04:34, skipping insertion in model container [2018-06-22 19:04:34,125 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:04:33" (2/3) ... [2018-06-22 19:04:34,126 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3930ec89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:04:34, skipping insertion in model container [2018-06-22 19:04:34,126 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:04:34" (3/3) ... [2018-06-22 19:04:34,128 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 19:04:34,140 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 19:04:34,152 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 19:04:34,204 INFO ]: Using default assertion order modulation [2018-06-22 19:04:34,205 INFO ]: Interprodecural is true [2018-06-22 19:04:34,205 INFO ]: Hoare is false [2018-06-22 19:04:34,205 INFO ]: Compute interpolants for FPandBP [2018-06-22 19:04:34,205 INFO ]: Backedges is TWOTRACK [2018-06-22 19:04:34,205 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 19:04:34,205 INFO ]: Difference is false [2018-06-22 19:04:34,205 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 19:04:34,205 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 19:04:34,220 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 19:04:34,235 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 19:04:34,235 INFO ]: Found error trace [2018-06-22 19:04:34,236 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:04:34,236 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:04:34,242 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 19:04:34,244 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:04:34,245 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:04:34,282 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:34,282 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:04:34,282 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:34,391 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:04:34,583 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 19:04:34,586 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 19:04:34,586 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 19:04:34,588 INFO ]: Interpolant automaton has 4 states [2018-06-22 19:04:34,604 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 19:04:34,604 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 19:04:34,607 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 19:04:34,739 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:04:34,739 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 19:04:34,741 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 19:04:34,743 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 19:04:34,743 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:04:34,759 INFO ]: With dead ends: 13 [2018-06-22 19:04:34,759 INFO ]: Without dead ends: 13 [2018-06-22 19:04:34,763 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 19:04:34,779 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 19:04:34,805 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 19:04:34,806 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 19:04:34,807 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 19:04:34,808 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 19:04:34,808 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:04:34,808 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 19:04:34,808 INFO ]: Interpolant automaton has 4 states. [2018-06-22 19:04:34,808 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 19:04:34,810 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 19:04:34,810 INFO ]: Found error trace [2018-06-22 19:04:34,810 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:04:34,811 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:04:34,811 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 19:04:34,811 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:04:34,811 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:04:34,812 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:34,812 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:04:34,812 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:34,886 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:04:35,229 WARN ]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 19:04:35,280 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 19:04:35,280 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:04:35,280 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 19:04:35,295 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:04:35,434 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:04:35,444 INFO ]: Computing forward predicates... [2018-06-22 19:04:35,869 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 19:04:35,904 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:04:35,904 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 19:04:35,904 INFO ]: Interpolant automaton has 8 states [2018-06-22 19:04:35,905 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 19:04:35,905 INFO ]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-06-22 19:04:35,905 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-22 19:04:36,325 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:04:36,325 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 19:04:36,326 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 19:04:36,326 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 19:04:36,326 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:04:36,327 INFO ]: With dead ends: 15 [2018-06-22 19:04:36,327 INFO ]: Without dead ends: 15 [2018-06-22 19:04:36,328 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-06-22 19:04:36,328 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 19:04:36,331 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 19:04:36,332 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 19:04:36,332 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 19:04:36,332 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 19:04:36,332 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:04:36,332 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 19:04:36,332 INFO ]: Interpolant automaton has 8 states. [2018-06-22 19:04:36,332 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 19:04:36,333 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 19:04:36,333 INFO ]: Found error trace [2018-06-22 19:04:36,333 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:04:36,333 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:04:36,333 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-22 19:04:36,333 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:04:36,333 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:04:36,334 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:36,334 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:04:36,334 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:36,426 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:04:36,914 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 19:04:36,914 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:04:36,914 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 19:04:36,922 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 19:04:37,059 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 19:04:37,059 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:04:37,065 INFO ]: Computing forward predicates... [2018-06-22 19:04:37,563 WARN ]: Spent 220.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 5 [2018-06-22 19:04:37,717 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 19:04:37,755 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:04:37,755 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-06-22 19:04:37,756 INFO ]: Interpolant automaton has 12 states [2018-06-22 19:04:37,758 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 19:04:37,758 INFO ]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-06-22 19:04:37,758 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 12 states. [2018-06-22 19:04:38,160 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:04:38,160 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 19:04:38,161 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 19:04:38,161 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 19:04:38,161 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:04:38,162 INFO ]: With dead ends: 17 [2018-06-22 19:04:38,162 INFO ]: Without dead ends: 17 [2018-06-22 19:04:38,162 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-06-22 19:04:38,163 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 19:04:38,166 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 19:04:38,166 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 19:04:38,166 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 19:04:38,166 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 19:04:38,167 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:04:38,167 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 19:04:38,167 INFO ]: Interpolant automaton has 12 states. [2018-06-22 19:04:38,167 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 19:04:38,167 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 19:04:38,167 INFO ]: Found error trace [2018-06-22 19:04:38,167 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:04:38,167 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:04:38,168 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 3 times [2018-06-22 19:04:38,168 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:04:38,168 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:04:38,168 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:38,169 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 19:04:38,169 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:38,278 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:04:38,735 WARN ]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2018-06-22 19:04:38,956 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 19:04:38,956 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:04:38,956 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) [2018-06-22 19:04:38,972 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 19:04:39,150 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 19:04:39,150 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:04:39,156 INFO ]: Computing forward predicates... [2018-06-22 19:04:39,658 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 19:04:39,682 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 19:04:39,696 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 19:04:39,741 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 19:04:39,749 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 19:04:39,757 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 19:04:42,687 WARN ]: Spent 1.81 s on a formula simplification. DAG size of input: 144 DAG size of output: 63 [2018-06-22 19:04:42,896 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 19:04:42,917 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:04:42,917 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-06-22 19:04:42,918 INFO ]: Interpolant automaton has 16 states [2018-06-22 19:04:42,918 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-22 19:04:42,918 INFO ]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2018-06-22 19:04:42,918 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 16 states. [2018-06-22 19:04:43,732 WARN ]: Spent 755.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 164 [2018-06-22 19:04:44,219 WARN ]: Spent 352.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 84 [2018-06-22 19:04:45,387 WARN ]: Spent 1.04 s on a formula simplification. DAG size of input: 174 DAG size of output: 107 [2018-06-22 19:04:46,046 WARN ]: Spent 610.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 155 [2018-06-22 19:04:46,114 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:04:46,115 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-22 19:04:46,115 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 19:04:46,115 INFO ]: Start accepts. Automaton has 16 states. Word has length 21 [2018-06-22 19:04:46,116 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:04:46,116 INFO ]: With dead ends: 19 [2018-06-22 19:04:46,116 INFO ]: Without dead ends: 19 [2018-06-22 19:04:46,117 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-06-22 19:04:46,117 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 19:04:46,119 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 19:04:46,119 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 19:04:46,120 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-22 19:04:46,120 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-22 19:04:46,120 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:04:46,120 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-22 19:04:46,120 INFO ]: Interpolant automaton has 16 states. [2018-06-22 19:04:46,120 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-22 19:04:46,121 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 19:04:46,121 INFO ]: Found error trace [2018-06-22 19:04:46,121 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:04:46,121 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:04:46,121 INFO ]: Analyzing trace with hash -434924750, now seen corresponding path program 4 times [2018-06-22 19:04:46,121 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:04:46,121 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:04:46,122 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:46,122 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 19:04:46,122 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:04:46,236 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:04:46,720 WARN ]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-06-22 19:04:47,395 WARN ]: Spent 596.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2018-06-22 19:04:47,893 WARN ]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2018-06-22 19:04:47,907 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 19:04:47,907 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:04:47,907 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 19:04:47,913 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 19:04:48,107 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 19:04:48,107 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:04:48,115 INFO ]: Computing forward predicates... [2018-06-22 19:04:48,437 WARN ]: Spent 153.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2018-06-22 19:04:48,505 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 19:05:28,406 WARN ]: Spent 32.94 s on a formula simplification. DAG size of input: 1208 DAG size of output: 65 [2018-06-22 19:05:31,521 WARN ]: Spent 471.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 36 [2018-06-22 19:05:33,522 WARN ]: Spent 989.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 57 [2018-06-22 19:05:33,631 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 19:05:33,651 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:05:33,652 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2018-06-22 19:05:33,652 INFO ]: Interpolant automaton has 20 states [2018-06-22 19:05:33,652 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-22 19:05:33,652 INFO ]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2018-06-22 19:05:33,652 INFO ]: Start difference. First operand 19 states and 20 transitions. Second operand 20 states. [2018-06-22 19:05:35,386 WARN ]: Spent 1.68 s on a formula simplification. DAG size of input: 221 DAG size of output: 206 [2018-06-22 19:05:35,700 WARN ]: Spent 284.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 77 Received shutdown request... [2018-06-22 19:05:36,899 WARN ]: Removed 16 from assertion stack [2018-06-22 19:05:36,899 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 19:05:36,899 WARN ]: Verification canceled [2018-06-22 19:05:36,903 WARN ]: Timeout [2018-06-22 19:05:36,903 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:05:36 BoogieIcfgContainer [2018-06-22 19:05:36,903 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 19:05:36,904 INFO ]: Toolchain (without parser) took 63318.48 ms. Allocated memory was 308.3 MB in the beginning and 1.3 GB in the end (delta: 992.0 MB). Free memory was 249.8 MB in the beginning and 1.1 GB in the end (delta: -806.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 3.6 GB. [2018-06-22 19:05:36,905 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 19:05:36,905 INFO ]: ChcToBoogie took 64.27 ms. Allocated memory is still 308.3 MB. Free memory was 248.8 MB in the beginning and 246.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:05:36,905 INFO ]: Boogie Preprocessor took 81.08 ms. Allocated memory is still 308.3 MB. Free memory was 246.8 MB in the beginning and 244.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:05:36,906 INFO ]: RCFGBuilder took 378.77 ms. Allocated memory is still 308.3 MB. Free memory was 244.8 MB in the beginning and 220.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 3.6 GB. [2018-06-22 19:05:36,906 INFO ]: TraceAbstraction took 62784.52 ms. Allocated memory was 308.3 MB in the beginning and 1.3 GB in the end (delta: 992.0 MB). Free memory was 220.7 MB in the beginning and 1.1 GB in the end (delta: -835.7 MB). Peak memory consumption was 1.0 GB. Max. memory is 3.6 GB. [2018-06-22 19:05:36,912 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 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 64.27 ms. Allocated memory is still 308.3 MB. Free memory was 248.8 MB in the beginning and 246.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 81.08 ms. Allocated memory is still 308.3 MB. Free memory was 246.8 MB in the beginning and 244.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 378.77 ms. Allocated memory is still 308.3 MB. Free memory was 244.8 MB in the beginning and 220.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 62784.52 ms. Allocated memory was 308.3 MB in the beginning and 1.3 GB in the end (delta: 992.0 MB). Free memory was 220.7 MB in the beginning and 1.1 GB in the end (delta: -835.7 MB). Peak memory consumption was 1.0 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 constructing difference of abstraction (19states) and interpolant automaton (currently 5 states, 20 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 269. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 62.7s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 7.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 45 SDslu, 204 SDs, 0 SdLazy, 176 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 46.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=4, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 53.7s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 92940 SizeOfPredicates, 160 NumberOfNonLiveVariables, 3136 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 40/140 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/metros_1_e2_1102.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_19-05-36-928.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/metros_1_e2_1102.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_19-05-36-928.csv Completed graceful shutdown