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/eldarica-misc/LIA/HOLA/27.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:01:52,645 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:01:52,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:01:52,658 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:01:52,659 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:01:52,660 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:01:52,661 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:01:52,663 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:01:52,665 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:01:52,665 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:01:52,666 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:01:52,666 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:01:52,667 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:01:52,668 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:01:52,669 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:01:52,670 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:01:52,671 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:01:52,673 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:01:52,684 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:01:52,685 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:01:52,686 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:01:52,689 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:01:52,689 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:01:52,689 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:01:52,690 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:01:52,691 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:01:52,697 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:01:52,698 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:01:52,699 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:01:52,700 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:01:52,700 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:01:52,701 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:01:52,701 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:01:52,702 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:01:52,702 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:01:52,703 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:01:52,716 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:01:52,716 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:01:52,716 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:01:52,717 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:01:52,718 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:01:52,718 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:01:52,718 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:01:52,718 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:01:52,718 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:01:52,719 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:01:52,719 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:01:52,719 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:01:52,719 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:01:52,719 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:01:52,719 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:01:52,720 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:01:52,720 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:01:52,721 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:01:52,721 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:01:52,762 INFO ]: Repository-Root is: /tmp [2018-06-22 01:01:52,777 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:01:52,781 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:01:52,782 INFO ]: Initializing SmtParser... [2018-06-22 01:01:52,783 INFO ]: SmtParser initialized [2018-06-22 01:01:52,783 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/27.c.smt2 [2018-06-22 01:01:52,784 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 01:01:52,886 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/27.c.smt2 unknown [2018-06-22 01:01:53,297 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/27.c.smt2 [2018-06-22 01:01:53,301 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:01:53,307 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:01:53,308 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:01:53,308 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:01:53,308 INFO ]: ChcToBoogie initialized [2018-06-22 01:01:53,311 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:01:53" (1/1) ... [2018-06-22 01:01:53,377 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53 Unit [2018-06-22 01:01:53,378 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:01:53,378 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:01:53,378 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:01:53,378 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:01:53,407 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53" (1/1) ... [2018-06-22 01:01:53,408 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53" (1/1) ... [2018-06-22 01:01:53,423 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53" (1/1) ... [2018-06-22 01:01:53,423 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53" (1/1) ... [2018-06-22 01:01:53,429 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53" (1/1) ... [2018-06-22 01:01:53,431 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53" (1/1) ... [2018-06-22 01:01:53,437 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53" (1/1) ... [2018-06-22 01:01:53,440 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:01:53,441 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:01:53,441 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:01:53,441 INFO ]: RCFGBuilder initialized [2018-06-22 01:01:53,442 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53" (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 01:01:53,452 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:01:53,452 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:01:53,452 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:01:53,452 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:01:53,452 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:01:53,452 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:01:54,079 INFO ]: Using library mode [2018-06-22 01:01:54,080 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:01:54 BoogieIcfgContainer [2018-06-22 01:01:54,080 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:01:54,081 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:01:54,081 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:01:54,084 INFO ]: TraceAbstraction initialized [2018-06-22 01:01:54,084 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:01:53" (1/3) ... [2018-06-22 01:01:54,085 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3ee388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:01:54, skipping insertion in model container [2018-06-22 01:01:54,085 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:01:53" (2/3) ... [2018-06-22 01:01:54,086 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3ee388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:01:54, skipping insertion in model container [2018-06-22 01:01:54,086 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:01:54" (3/3) ... [2018-06-22 01:01:54,088 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:01:54,097 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:01:54,104 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:01:54,139 INFO ]: Using default assertion order modulation [2018-06-22 01:01:54,139 INFO ]: Interprodecural is true [2018-06-22 01:01:54,139 INFO ]: Hoare is false [2018-06-22 01:01:54,139 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:01:54,139 INFO ]: Backedges is TWOTRACK [2018-06-22 01:01:54,139 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:01:54,139 INFO ]: Difference is false [2018-06-22 01:01:54,139 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:01:54,139 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:01:54,156 INFO ]: Start isEmpty. Operand 42 states. [2018-06-22 01:01:54,167 INFO ]: Finished isEmpty. Found accepting run of length 32 [2018-06-22 01:01:54,167 INFO ]: Found error trace [2018-06-22 01:01:54,168 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:01:54,168 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:01:54,174 INFO ]: Analyzing trace with hash 1110595906, now seen corresponding path program 1 times [2018-06-22 01:01:54,175 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:01:54,176 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:01:54,208 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:01:54,208 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:01:54,208 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:01:54,312 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:01:55,681 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:01:55,684 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:01:55,684 INFO ]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2018-06-22 01:01:55,686 INFO ]: Interpolant automaton has 23 states [2018-06-22 01:01:55,697 INFO ]: Constructing interpolant automaton starting with 23 interpolants. [2018-06-22 01:01:55,698 INFO ]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2018-06-22 01:01:55,700 INFO ]: Start difference. First operand 42 states. Second operand 23 states. [2018-06-22 01:01:58,826 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:01:58,826 INFO ]: Finished difference Result 192 states and 207 transitions. [2018-06-22 01:01:58,827 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-06-22 01:01:58,828 INFO ]: Start accepts. Automaton has 23 states. Word has length 31 [2018-06-22 01:01:58,828 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:01:58,843 INFO ]: With dead ends: 192 [2018-06-22 01:01:58,843 INFO ]: Without dead ends: 189 [2018-06-22 01:01:58,848 INFO ]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2110 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1743, Invalid=5913, Unknown=0, NotChecked=0, Total=7656 [2018-06-22 01:01:58,869 INFO ]: Start minimizeSevpa. Operand 189 states. [2018-06-22 01:01:58,903 INFO ]: Finished minimizeSevpa. Reduced states from 189 to 58. [2018-06-22 01:01:58,905 INFO ]: Start removeUnreachable. Operand 58 states. [2018-06-22 01:01:58,906 INFO ]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-06-22 01:01:58,908 INFO ]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 31 [2018-06-22 01:01:58,908 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:01:58,909 INFO ]: Abstraction has 58 states and 62 transitions. [2018-06-22 01:01:58,909 INFO ]: Interpolant automaton has 23 states. [2018-06-22 01:01:58,909 INFO ]: Start isEmpty. Operand 58 states and 62 transitions. [2018-06-22 01:01:58,910 INFO ]: Finished isEmpty. Found accepting run of length 36 [2018-06-22 01:01:58,910 INFO ]: Found error trace [2018-06-22 01:01:58,910 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:01:58,910 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:01:58,911 INFO ]: Analyzing trace with hash 1984632666, now seen corresponding path program 1 times [2018-06-22 01:01:58,911 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:01:58,911 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:01:58,913 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:01:58,914 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:01:58,914 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:01:58,961 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:01:59,342 INFO ]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 01:01:59,342 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:01:59,342 INFO ]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-06-22 01:01:59,344 INFO ]: Interpolant automaton has 25 states [2018-06-22 01:01:59,344 INFO ]: Constructing interpolant automaton starting with 25 interpolants. [2018-06-22 01:01:59,344 INFO ]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2018-06-22 01:01:59,344 INFO ]: Start difference. First operand 58 states and 62 transitions. Second operand 25 states. [2018-06-22 01:02:01,618 WARN ]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-06-22 01:02:04,052 WARN ]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-06-22 01:02:05,206 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:02:05,206 INFO ]: Finished difference Result 265 states and 287 transitions. [2018-06-22 01:02:05,206 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-06-22 01:02:05,206 INFO ]: Start accepts. Automaton has 25 states. Word has length 35 [2018-06-22 01:02:05,206 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:02:05,209 INFO ]: With dead ends: 265 [2018-06-22 01:02:05,209 INFO ]: Without dead ends: 262 [2018-06-22 01:02:05,213 INFO ]: 0 DeclaredPredicates, 123 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4508 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3079, Invalid=11201, Unknown=0, NotChecked=0, Total=14280 [2018-06-22 01:02:05,214 INFO ]: Start minimizeSevpa. Operand 262 states. [2018-06-22 01:02:05,223 INFO ]: Finished minimizeSevpa. Reduced states from 262 to 60. [2018-06-22 01:02:05,223 INFO ]: Start removeUnreachable. Operand 60 states. [2018-06-22 01:02:05,224 INFO ]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2018-06-22 01:02:05,225 INFO ]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 35 [2018-06-22 01:02:05,225 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:02:05,225 INFO ]: Abstraction has 60 states and 64 transitions. [2018-06-22 01:02:05,225 INFO ]: Interpolant automaton has 25 states. [2018-06-22 01:02:05,225 INFO ]: Start isEmpty. Operand 60 states and 64 transitions. [2018-06-22 01:02:05,226 INFO ]: Finished isEmpty. Found accepting run of length 38 [2018-06-22 01:02:05,226 INFO ]: Found error trace [2018-06-22 01:02:05,226 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:02:05,226 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:02:05,226 INFO ]: Analyzing trace with hash 701176728, now seen corresponding path program 1 times [2018-06-22 01:02:05,226 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:02:05,226 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:02:05,227 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:02:05,227 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:02:05,227 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:02:05,240 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:02:05,318 INFO ]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:02:05,318 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:02:05,318 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 01:02:05,318 INFO ]: Interpolant automaton has 8 states [2018-06-22 01:02:05,318 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 01:02:05,318 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 01:02:05,318 INFO ]: Start difference. First operand 60 states and 64 transitions. Second operand 8 states. [2018-06-22 01:02:05,424 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:02:05,424 INFO ]: Finished difference Result 100 states and 106 transitions. [2018-06-22 01:02:05,426 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 01:02:05,426 INFO ]: Start accepts. Automaton has 8 states. Word has length 37 [2018-06-22 01:02:05,426 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:02:05,427 INFO ]: With dead ends: 100 [2018-06-22 01:02:05,427 INFO ]: Without dead ends: 98 [2018-06-22 01:02:05,428 INFO ]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2018-06-22 01:02:05,428 INFO ]: Start minimizeSevpa. Operand 98 states. [2018-06-22 01:02:05,440 INFO ]: Finished minimizeSevpa. Reduced states from 98 to 60. [2018-06-22 01:02:05,440 INFO ]: Start removeUnreachable. Operand 60 states. [2018-06-22 01:02:05,441 INFO ]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-06-22 01:02:05,441 INFO ]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 37 [2018-06-22 01:02:05,441 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:02:05,441 INFO ]: Abstraction has 60 states and 63 transitions. [2018-06-22 01:02:05,441 INFO ]: Interpolant automaton has 8 states. [2018-06-22 01:02:05,441 INFO ]: Start isEmpty. Operand 60 states and 63 transitions. [2018-06-22 01:02:05,442 INFO ]: Finished isEmpty. Found accepting run of length 52 [2018-06-22 01:02:05,442 INFO ]: Found error trace [2018-06-22 01:02:05,443 INFO ]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:02:05,443 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:02:05,443 INFO ]: Analyzing trace with hash 972617702, now seen corresponding path program 1 times [2018-06-22 01:02:05,443 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:02:05,443 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:02:05,444 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:02:05,444 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:02:05,444 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:02:05,502 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:02:05,759 INFO ]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 01:02:05,760 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:02:05,760 INFO ]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-06-22 01:02:05,760 INFO ]: Interpolant automaton has 15 states [2018-06-22 01:02:05,760 INFO ]: Constructing interpolant automaton starting with 15 interpolants. [2018-06-22 01:02:05,760 INFO ]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-06-22 01:02:05,760 INFO ]: Start difference. First operand 60 states and 63 transitions. Second operand 15 states. [2018-06-22 01:02:06,255 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:02:06,256 INFO ]: Finished difference Result 134 states and 142 transitions. [2018-06-22 01:02:06,256 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-22 01:02:06,256 INFO ]: Start accepts. Automaton has 15 states. Word has length 51 [2018-06-22 01:02:06,256 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:02:06,257 INFO ]: With dead ends: 134 [2018-06-22 01:02:06,257 INFO ]: Without dead ends: 128 [2018-06-22 01:02:06,257 INFO ]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=346, Invalid=844, Unknown=0, NotChecked=0, Total=1190 [2018-06-22 01:02:06,258 INFO ]: Start minimizeSevpa. Operand 128 states. [2018-06-22 01:02:06,263 INFO ]: Finished minimizeSevpa. Reduced states from 128 to 72. [2018-06-22 01:02:06,263 INFO ]: Start removeUnreachable. Operand 72 states. [2018-06-22 01:02:06,264 INFO ]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2018-06-22 01:02:06,264 INFO ]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 51 [2018-06-22 01:02:06,264 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:02:06,264 INFO ]: Abstraction has 72 states and 76 transitions. [2018-06-22 01:02:06,264 INFO ]: Interpolant automaton has 15 states. [2018-06-22 01:02:06,264 INFO ]: Start isEmpty. Operand 72 states and 76 transitions. [2018-06-22 01:02:06,265 INFO ]: Finished isEmpty. Found accepting run of length 56 [2018-06-22 01:02:06,266 INFO ]: Found error trace [2018-06-22 01:02:06,266 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:02:06,266 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:02:06,266 INFO ]: Analyzing trace with hash 647870974, now seen corresponding path program 1 times [2018-06-22 01:02:06,266 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:02:06,266 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:02:06,267 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:02:06,267 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:02:06,267 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:02:06,321 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:02:06,832 INFO ]: Checked inductivity of 20 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 01:02:06,832 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:02:06,832 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 01:02:06,843 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:02:06,966 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:02:06,979 INFO ]: Computing forward predicates... [2018-06-22 01:02:07,790 INFO ]: Checked inductivity of 20 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 01:02:07,813 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:02:07,813 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 35 [2018-06-22 01:02:07,814 INFO ]: Interpolant automaton has 35 states [2018-06-22 01:02:07,814 INFO ]: Constructing interpolant automaton starting with 35 interpolants. [2018-06-22 01:02:07,814 INFO ]: CoverageRelationStatistics Valid=73, Invalid=1117, Unknown=0, NotChecked=0, Total=1190 [2018-06-22 01:02:07,814 INFO ]: Start difference. First operand 72 states and 76 transitions. Second operand 35 states. [2018-06-22 01:02:09,049 WARN ]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-06-22 01:02:09,996 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:02:09,996 INFO ]: Finished difference Result 78 states and 81 transitions. [2018-06-22 01:02:09,997 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-06-22 01:02:09,997 INFO ]: Start accepts. Automaton has 35 states. Word has length 55 [2018-06-22 01:02:09,997 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:02:09,998 INFO ]: With dead ends: 78 [2018-06-22 01:02:09,998 INFO ]: Without dead ends: 75 [2018-06-22 01:02:09,999 INFO ]: 0 DeclaredPredicates, 114 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=744, Invalid=3038, Unknown=0, NotChecked=0, Total=3782 [2018-06-22 01:02:09,999 INFO ]: Start minimizeSevpa. Operand 75 states. [2018-06-22 01:02:10,003 INFO ]: Finished minimizeSevpa. Reduced states from 75 to 66. [2018-06-22 01:02:10,003 INFO ]: Start removeUnreachable. Operand 66 states. [2018-06-22 01:02:10,003 INFO ]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2018-06-22 01:02:10,003 INFO ]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 55 [2018-06-22 01:02:10,004 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:02:10,004 INFO ]: Abstraction has 66 states and 69 transitions. [2018-06-22 01:02:10,004 INFO ]: Interpolant automaton has 35 states. [2018-06-22 01:02:10,004 INFO ]: Start isEmpty. Operand 66 states and 69 transitions. [2018-06-22 01:02:10,005 INFO ]: Finished isEmpty. Found accepting run of length 66 [2018-06-22 01:02:10,006 INFO ]: Found error trace [2018-06-22 01:02:10,006 INFO ]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:02:10,006 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:02:10,006 INFO ]: Analyzing trace with hash 974480492, now seen corresponding path program 1 times [2018-06-22 01:02:10,006 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:02:10,006 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:02:10,007 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:02:10,007 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:02:10,007 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:02:10,038 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:02:11,067 INFO ]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 01:02:11,067 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:02:11,137 INFO ]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2018-06-22 01:02:11,137 INFO ]: Interpolant automaton has 30 states [2018-06-22 01:02:11,137 INFO ]: Constructing interpolant automaton starting with 30 interpolants. [2018-06-22 01:02:11,138 INFO ]: CoverageRelationStatistics Valid=59, Invalid=811, Unknown=0, NotChecked=0, Total=870 [2018-06-22 01:02:11,138 INFO ]: Start difference. First operand 66 states and 69 transitions. Second operand 30 states. [2018-06-22 01:02:12,571 WARN ]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-06-22 01:02:13,262 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:02:13,262 INFO ]: Finished difference Result 35 states and 35 transitions. [2018-06-22 01:02:13,262 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-06-22 01:02:13,262 INFO ]: Start accepts. Automaton has 30 states. Word has length 65 [2018-06-22 01:02:13,263 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:02:13,263 INFO ]: With dead ends: 35 [2018-06-22 01:02:13,263 INFO ]: Without dead ends: 0 [2018-06-22 01:02:13,263 INFO ]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=869, Invalid=2323, Unknown=0, NotChecked=0, Total=3192 [2018-06-22 01:02:13,264 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:02:13,264 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:02:13,264 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:02:13,264 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:02:13,264 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2018-06-22 01:02:13,264 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:02:13,264 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:02:13,264 INFO ]: Interpolant automaton has 30 states. [2018-06-22 01:02:13,264 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:02:13,264 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:02:13,268 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:02:13 BoogieIcfgContainer [2018-06-22 01:02:13,268 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:02:13,268 INFO ]: Toolchain (without parser) took 19966.54 ms. Allocated memory was 306.7 MB in the beginning and 526.9 MB in the end (delta: 220.2 MB). Free memory was 247.2 MB in the beginning and 254.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 213.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:02:13,269 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 306.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:02:13,270 INFO ]: ChcToBoogie took 70.21 ms. Allocated memory is still 306.7 MB. Free memory was 247.2 MB in the beginning and 243.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:02:13,270 INFO ]: Boogie Preprocessor took 62.20 ms. Allocated memory is still 306.7 MB. Free memory is still 243.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:02:13,270 INFO ]: RCFGBuilder took 638.76 ms. Allocated memory is still 306.7 MB. Free memory was 243.2 MB in the beginning and 213.3 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:02:13,271 INFO ]: TraceAbstraction took 19186.44 ms. Allocated memory was 306.7 MB in the beginning and 526.9 MB in the end (delta: 220.2 MB). Free memory was 211.3 MB in the beginning and 254.3 MB in the end (delta: -43.1 MB). Peak memory consumption was 177.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:02:13,282 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 306.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 70.21 ms. Allocated memory is still 306.7 MB. Free memory was 247.2 MB in the beginning and 243.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 62.20 ms. Allocated memory is still 306.7 MB. Free memory is still 243.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * RCFGBuilder took 638.76 ms. Allocated memory is still 306.7 MB. Free memory was 243.2 MB in the beginning and 213.3 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 19186.44 ms. Allocated memory was 306.7 MB in the beginning and 526.9 MB in the end (delta: 220.2 MB). Free memory was 211.3 MB in the beginning and 254.3 MB in the end (delta: -43.1 MB). Peak memory consumption was 177.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. SAFE Result, 19.1s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 13.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 244 SDtfs, 3764 SDslu, 4380 SDs, 0 SdLazy, 2376 SolverSat, 433 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 364 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7088 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred 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, 6 MinimizatonAttempts, 436 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 40516 SizeOfPredicates, 62 NumberOfNonLiveVariables, 842 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 86/96 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/27.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-02-13-290.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/27.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-02-13-290.csv Received shutdown request...