java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label57_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:33:54,900 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:33:54,904 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:33:54,915 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:33:54,915 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:33:54,916 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:33:54,917 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:33:54,919 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:33:54,921 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:33:54,921 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:33:54,922 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:33:54,923 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:33:54,923 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:33:54,924 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:33:54,925 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:33:54,926 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:33:54,927 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:33:54,929 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:33:54,931 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:33:54,932 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:33:54,933 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:33:54,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:33:54,937 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:33:54,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:33:54,938 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:33:54,938 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:33:54,939 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:33:54,940 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:33:54,941 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:33:54,942 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:33:54,942 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:33:54,943 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 14:33:54,943 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 14:33:54,944 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 14:33:54,945 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 14:33:54,945 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 14:33:54,946 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:33:54,971 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:33:54,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:33:54,972 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:33:54,972 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:33:54,973 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:33:54,973 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:33:54,974 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:33:54,975 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:33:54,975 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:33:54,975 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:33:54,975 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:33:54,976 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:33:54,976 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:33:54,976 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:33:54,976 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:33:54,977 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:33:54,977 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:33:54,977 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:33:54,977 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:33:54,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:33:54,978 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:33:54,978 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:33:54,978 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:33:54,978 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:33:54,978 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:33:54,979 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:33:54,980 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:33:54,980 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:33:55,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:33:55,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:33:55,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:33:55,059 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:33:55,059 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:33:55,060 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label57_false-unreach-call.c [2018-10-24 14:33:55,126 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c67c7bda2/d277798b8d9643b68a497ee175caebcd/FLAGd592e9c9f [2018-10-24 14:33:55,940 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:33:55,940 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label57_false-unreach-call.c [2018-10-24 14:33:55,964 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c67c7bda2/d277798b8d9643b68a497ee175caebcd/FLAGd592e9c9f [2018-10-24 14:33:55,980 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c67c7bda2/d277798b8d9643b68a497ee175caebcd [2018-10-24 14:33:55,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:33:55,992 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:33:55,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:33:55,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:33:55,998 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:33:55,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:33:55" (1/1) ... [2018-10-24 14:33:56,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769766bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:56, skipping insertion in model container [2018-10-24 14:33:56,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:33:55" (1/1) ... [2018-10-24 14:33:56,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:33:56,139 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:33:57,082 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:33:57,087 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:33:57,485 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:33:57,510 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:33:57,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57 WrapperNode [2018-10-24 14:33:57,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:33:57,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:33:57,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:33:57,512 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:33:57,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... [2018-10-24 14:33:57,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... [2018-10-24 14:33:58,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:33:58,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:33:58,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:33:58,052 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:33:58,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... [2018-10-24 14:33:58,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... [2018-10-24 14:33:58,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... [2018-10-24 14:33:58,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... [2018-10-24 14:33:58,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... [2018-10-24 14:33:58,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... [2018-10-24 14:33:58,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... [2018-10-24 14:33:58,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:33:58,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:33:58,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:33:58,382 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:33:58,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 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 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:33:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:33:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:33:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:34:07,620 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:34:07,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:34:07 BoogieIcfgContainer [2018-10-24 14:34:07,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:34:07,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:34:07,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:34:07,627 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:34:07,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:33:55" (1/3) ... [2018-10-24 14:34:07,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab36628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:34:07, skipping insertion in model container [2018-10-24 14:34:07,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:57" (2/3) ... [2018-10-24 14:34:07,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab36628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:34:07, skipping insertion in model container [2018-10-24 14:34:07,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:34:07" (3/3) ... [2018-10-24 14:34:07,633 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label57_false-unreach-call.c [2018-10-24 14:34:07,645 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:34:07,657 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:34:07,673 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:34:07,715 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:34:07,716 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:34:07,716 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:34:07,716 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:34:07,717 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:34:07,717 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:34:07,717 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:34:07,717 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:34:07,717 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:34:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-10-24 14:34:07,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-24 14:34:07,757 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:07,758 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:34:07,761 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:07,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:07,767 INFO L82 PathProgramCache]: Analyzing trace with hash 670581594, now seen corresponding path program 1 times [2018-10-24 14:34:07,769 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:07,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:07,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:07,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:07,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:34:08,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:34:08,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:34:08,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:34:08,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:34:08,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:34:08,176 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-10-24 14:34:20,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:20,650 INFO L93 Difference]: Finished difference Result 2126 states and 3956 transitions. [2018-10-24 14:34:20,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:34:20,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-10-24 14:34:20,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:20,688 INFO L225 Difference]: With dead ends: 2126 [2018-10-24 14:34:20,688 INFO L226 Difference]: Without dead ends: 1528 [2018-10-24 14:34:20,696 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:34:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2018-10-24 14:34:20,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1048. [2018-10-24 14:34:20,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2018-10-24 14:34:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1826 transitions. [2018-10-24 14:34:20,817 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1826 transitions. Word has length 18 [2018-10-24 14:34:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:20,817 INFO L481 AbstractCegarLoop]: Abstraction has 1048 states and 1826 transitions. [2018-10-24 14:34:20,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:34:20,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1826 transitions. [2018-10-24 14:34:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-24 14:34:20,821 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:20,822 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1] [2018-10-24 14:34:20,822 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:20,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:20,823 INFO L82 PathProgramCache]: Analyzing trace with hash -659555608, now seen corresponding path program 1 times [2018-10-24 14:34:20,825 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:20,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:20,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:20,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:20,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:34:21,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:34:21,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:34:21,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:34:21,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:34:21,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:34:21,116 INFO L87 Difference]: Start difference. First operand 1048 states and 1826 transitions. Second operand 4 states. [2018-10-24 14:34:31,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:31,071 INFO L93 Difference]: Finished difference Result 3810 states and 6822 transitions. [2018-10-24 14:34:31,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:34:31,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2018-10-24 14:34:31,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:31,088 INFO L225 Difference]: With dead ends: 3810 [2018-10-24 14:34:31,088 INFO L226 Difference]: Without dead ends: 2764 [2018-10-24 14:34:31,094 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:34:31,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2018-10-24 14:34:31,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2764. [2018-10-24 14:34:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2764 states. [2018-10-24 14:34:31,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 4043 transitions. [2018-10-24 14:34:31,153 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 4043 transitions. Word has length 90 [2018-10-24 14:34:31,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:31,154 INFO L481 AbstractCegarLoop]: Abstraction has 2764 states and 4043 transitions. [2018-10-24 14:34:31,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:34:31,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 4043 transitions. [2018-10-24 14:34:31,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-24 14:34:31,162 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:31,163 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:34:31,163 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:31,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:31,163 INFO L82 PathProgramCache]: Analyzing trace with hash 483122712, now seen corresponding path program 1 times [2018-10-24 14:34:31,163 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:31,164 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:31,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:31,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:31,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:34:31,587 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:34:31,587 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:34:31,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:31,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:34:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:34:31,994 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:34:31,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 4 [2018-10-24 14:34:31,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:34:31,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:34:31,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:34:31,999 INFO L87 Difference]: Start difference. First operand 2764 states and 4043 transitions. Second operand 5 states. [2018-10-24 14:34:43,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:43,285 INFO L93 Difference]: Finished difference Result 11102 states and 16163 transitions. [2018-10-24 14:34:43,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:34:43,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2018-10-24 14:34:43,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:43,324 INFO L225 Difference]: With dead ends: 11102 [2018-10-24 14:34:43,325 INFO L226 Difference]: Without dead ends: 6550 [2018-10-24 14:34:43,332 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 172 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:34:43,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6550 states. [2018-10-24 14:34:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6550 to 6549. [2018-10-24 14:34:43,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6549 states. [2018-10-24 14:34:43,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 7902 transitions. [2018-10-24 14:34:43,460 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 7902 transitions. Word has length 174 [2018-10-24 14:34:43,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:43,464 INFO L481 AbstractCegarLoop]: Abstraction has 6549 states and 7902 transitions. [2018-10-24 14:34:43,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:34:43,465 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 7902 transitions. [2018-10-24 14:34:43,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-10-24 14:34:43,474 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:43,475 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 14:34:43,475 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:43,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:43,475 INFO L82 PathProgramCache]: Analyzing trace with hash 2094923541, now seen corresponding path program 1 times [2018-10-24 14:34:43,476 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:43,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:43,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:43,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:43,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:43,756 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-10-24 14:34:43,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:34:43,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:34:43,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:34:43,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:34:43,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:34:43,759 INFO L87 Difference]: Start difference. First operand 6549 states and 7902 transitions. Second operand 3 states. [2018-10-24 14:34:47,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:47,984 INFO L93 Difference]: Finished difference Result 12662 states and 15359 transitions. [2018-10-24 14:34:47,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:34:47,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2018-10-24 14:34:47,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:48,013 INFO L225 Difference]: With dead ends: 12662 [2018-10-24 14:34:48,013 INFO L226 Difference]: Without dead ends: 6548 [2018-10-24 14:34:48,022 INFO L605 BasicCegarLoop]: 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 [2018-10-24 14:34:48,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6548 states. [2018-10-24 14:34:48,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6548 to 6548. [2018-10-24 14:34:48,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6548 states. [2018-10-24 14:34:48,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6548 states to 6548 states and 7482 transitions. [2018-10-24 14:34:48,138 INFO L78 Accepts]: Start accepts. Automaton has 6548 states and 7482 transitions. Word has length 240 [2018-10-24 14:34:48,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:48,139 INFO L481 AbstractCegarLoop]: Abstraction has 6548 states and 7482 transitions. [2018-10-24 14:34:48,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:34:48,139 INFO L276 IsEmpty]: Start isEmpty. Operand 6548 states and 7482 transitions. [2018-10-24 14:34:48,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-10-24 14:34:48,148 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:48,148 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1] [2018-10-24 14:34:48,148 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:48,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:48,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1222067300, now seen corresponding path program 1 times [2018-10-24 14:34:48,149 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:48,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:48,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:48,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:48,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 323 proven. 83 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-10-24 14:34:48,764 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:34:48,765 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 14:34:48,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:48,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:35:36,290 WARN L179 SmtUtils]: Spent 47.03 s on a formula simplification. DAG size of input: 866 DAG size of output: 140 [2018-10-24 14:35:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2018-10-24 14:35:36,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:35:36,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 14:35:36,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:35:36,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:35:36,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:35:36,869 INFO L87 Difference]: Start difference. First operand 6548 states and 7482 transitions. Second operand 6 states. [2018-10-24 14:37:16,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:16,147 INFO L93 Difference]: Finished difference Result 21051 states and 23904 transitions. [2018-10-24 14:37:16,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:37:16,148 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 353 [2018-10-24 14:37:16,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:16,204 INFO L225 Difference]: With dead ends: 21051 [2018-10-24 14:37:16,205 INFO L226 Difference]: Without dead ends: 13648 [2018-10-24 14:37:16,216 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:37:16,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13648 states. [2018-10-24 14:37:16,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13648 to 11665. [2018-10-24 14:37:16,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11665 states. [2018-10-24 14:37:16,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11665 states to 11665 states and 12891 transitions. [2018-10-24 14:37:16,431 INFO L78 Accepts]: Start accepts. Automaton has 11665 states and 12891 transitions. Word has length 353 [2018-10-24 14:37:16,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:16,432 INFO L481 AbstractCegarLoop]: Abstraction has 11665 states and 12891 transitions. [2018-10-24 14:37:16,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:37:16,432 INFO L276 IsEmpty]: Start isEmpty. Operand 11665 states and 12891 transitions. [2018-10-24 14:37:16,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2018-10-24 14:37:16,444 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:16,445 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 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] [2018-10-24 14:37:16,445 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:16,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:16,446 INFO L82 PathProgramCache]: Analyzing trace with hash 322321842, now seen corresponding path program 1 times [2018-10-24 14:37:16,446 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:16,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:16,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:16,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:16,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:16,908 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2018-10-24 14:37:17,154 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2018-10-24 14:37:17,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:37:17,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:37:17,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:37:17,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:37:17,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:37:17,156 INFO L87 Difference]: Start difference. First operand 11665 states and 12891 transitions. Second operand 3 states. [2018-10-24 14:37:22,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:22,203 INFO L93 Difference]: Finished difference Result 29496 states and 32815 transitions. [2018-10-24 14:37:22,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:37:22,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 430 [2018-10-24 14:37:22,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:22,233 INFO L225 Difference]: With dead ends: 29496 [2018-10-24 14:37:22,234 INFO L226 Difference]: Without dead ends: 17738 [2018-10-24 14:37:22,248 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:37:22,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17738 states. [2018-10-24 14:37:22,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17738 to 17694. [2018-10-24 14:37:22,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17694 states. [2018-10-24 14:37:22,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17694 states to 17694 states and 19218 transitions. [2018-10-24 14:37:22,731 INFO L78 Accepts]: Start accepts. Automaton has 17694 states and 19218 transitions. Word has length 430 [2018-10-24 14:37:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:22,732 INFO L481 AbstractCegarLoop]: Abstraction has 17694 states and 19218 transitions. [2018-10-24 14:37:22,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:37:22,732 INFO L276 IsEmpty]: Start isEmpty. Operand 17694 states and 19218 transitions. [2018-10-24 14:37:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2018-10-24 14:37:22,749 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:22,749 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:37:22,750 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:22,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:22,750 INFO L82 PathProgramCache]: Analyzing trace with hash -2125171592, now seen corresponding path program 1 times [2018-10-24 14:37:22,750 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:22,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:22,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:22,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:22,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:23,141 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2018-10-24 14:37:23,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:37:23,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:37:23,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:37:23,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:37:23,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:37:23,143 INFO L87 Difference]: Start difference. First operand 17694 states and 19218 transitions. Second operand 3 states. [2018-10-24 14:37:28,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:28,066 INFO L93 Difference]: Finished difference Result 41583 states and 45249 transitions. [2018-10-24 14:37:28,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:37:28,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 455 [2018-10-24 14:37:28,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:28,111 INFO L225 Difference]: With dead ends: 41583 [2018-10-24 14:37:28,112 INFO L226 Difference]: Without dead ends: 24318 [2018-10-24 14:37:28,132 INFO L605 BasicCegarLoop]: 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 [2018-10-24 14:37:28,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24318 states. [2018-10-24 14:37:28,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24318 to 17257. [2018-10-24 14:37:28,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17257 states. [2018-10-24 14:37:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17257 states to 17257 states and 18753 transitions. [2018-10-24 14:37:28,401 INFO L78 Accepts]: Start accepts. Automaton has 17257 states and 18753 transitions. Word has length 455 [2018-10-24 14:37:28,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:28,402 INFO L481 AbstractCegarLoop]: Abstraction has 17257 states and 18753 transitions. [2018-10-24 14:37:28,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:37:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 17257 states and 18753 transitions. [2018-10-24 14:37:28,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2018-10-24 14:37:28,421 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:28,422 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:37:28,422 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:28,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:28,422 INFO L82 PathProgramCache]: Analyzing trace with hash 289460499, now seen corresponding path program 1 times [2018-10-24 14:37:28,423 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:28,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:28,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:28,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:28,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-10-24 14:37:28,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:37:28,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:37:28,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:37:28,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:37:28,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:37:28,940 INFO L87 Difference]: Start difference. First operand 17257 states and 18753 transitions. Second operand 5 states. [2018-10-24 14:37:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:36,581 INFO L93 Difference]: Finished difference Result 51422 states and 56082 transitions. [2018-10-24 14:37:36,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:37:36,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 490 [2018-10-24 14:37:36,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:36,630 INFO L225 Difference]: With dead ends: 51422 [2018-10-24 14:37:36,631 INFO L226 Difference]: Without dead ends: 32125 [2018-10-24 14:37:36,654 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:37:36,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32125 states. [2018-10-24 14:37:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32125 to 25849. [2018-10-24 14:37:37,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25849 states. [2018-10-24 14:37:37,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25849 states to 25849 states and 27956 transitions. [2018-10-24 14:37:37,068 INFO L78 Accepts]: Start accepts. Automaton has 25849 states and 27956 transitions. Word has length 490 [2018-10-24 14:37:37,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:37,069 INFO L481 AbstractCegarLoop]: Abstraction has 25849 states and 27956 transitions. [2018-10-24 14:37:37,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:37:37,069 INFO L276 IsEmpty]: Start isEmpty. Operand 25849 states and 27956 transitions. [2018-10-24 14:37:37,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2018-10-24 14:37:37,086 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:37,086 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:37:37,087 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:37,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:37,087 INFO L82 PathProgramCache]: Analyzing trace with hash -2019481928, now seen corresponding path program 1 times [2018-10-24 14:37:37,087 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:37,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:37,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:37,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:37,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:37,939 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 14:37:38,509 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 208 proven. 344 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-24 14:37:38,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:37:38,509 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 14:37:38,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:38,651 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:37:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 379 proven. 83 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-10-24 14:37:39,049 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:37:39,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-10-24 14:37:39,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 14:37:39,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 14:37:39,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:37:39,050 INFO L87 Difference]: Start difference. First operand 25849 states and 27956 transitions. Second operand 9 states. [2018-10-24 14:37:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:47,301 INFO L93 Difference]: Finished difference Result 57124 states and 61539 transitions. [2018-10-24 14:37:47,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 14:37:47,301 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 495 [2018-10-24 14:37:47,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:47,341 INFO L225 Difference]: With dead ends: 57124 [2018-10-24 14:37:47,341 INFO L226 Difference]: Without dead ends: 31277 [2018-10-24 14:37:47,364 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 494 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-10-24 14:37:47,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31277 states. [2018-10-24 14:37:48,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31277 to 29143. [2018-10-24 14:37:48,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29143 states. [2018-10-24 14:37:48,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29143 states to 29143 states and 31361 transitions. [2018-10-24 14:37:48,050 INFO L78 Accepts]: Start accepts. Automaton has 29143 states and 31361 transitions. Word has length 495 [2018-10-24 14:37:48,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:48,050 INFO L481 AbstractCegarLoop]: Abstraction has 29143 states and 31361 transitions. [2018-10-24 14:37:48,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 14:37:48,051 INFO L276 IsEmpty]: Start isEmpty. Operand 29143 states and 31361 transitions. [2018-10-24 14:37:48,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2018-10-24 14:37:48,068 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:48,068 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1] [2018-10-24 14:37:48,069 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:48,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:48,069 INFO L82 PathProgramCache]: Analyzing trace with hash 507428842, now seen corresponding path program 1 times [2018-10-24 14:37:48,069 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:48,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:48,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:48,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:48,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:48,600 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 14:37:49,075 WARN L179 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-10-24 14:37:49,526 WARN L179 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 17 [2018-10-24 14:37:49,756 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 17 [2018-10-24 14:37:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 399 proven. 83 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-10-24 14:37:50,450 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:37:50,450 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 14:37:50,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:50,605 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:37:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 399 proven. 83 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-10-24 14:37:51,754 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:37:51,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2018-10-24 14:37:51,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 14:37:51,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 14:37:51,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-10-24 14:37:51,756 INFO L87 Difference]: Start difference. First operand 29143 states and 31361 transitions. Second operand 13 states. [2018-10-24 14:38:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:38:05,443 INFO L93 Difference]: Finished difference Result 67276 states and 72736 transitions. [2018-10-24 14:38:05,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-24 14:38:05,444 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 515 [2018-10-24 14:38:05,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:38:05,483 INFO L225 Difference]: With dead ends: 67276 [2018-10-24 14:38:05,484 INFO L226 Difference]: Without dead ends: 39943 [2018-10-24 14:38:05,505 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 512 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-10-24 14:38:05,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39943 states. [2018-10-24 14:38:05,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39943 to 36275. [2018-10-24 14:38:05,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36275 states. [2018-10-24 14:38:06,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36275 states to 36275 states and 38695 transitions. [2018-10-24 14:38:06,013 INFO L78 Accepts]: Start accepts. Automaton has 36275 states and 38695 transitions. Word has length 515 [2018-10-24 14:38:06,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:38:06,013 INFO L481 AbstractCegarLoop]: Abstraction has 36275 states and 38695 transitions. [2018-10-24 14:38:06,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-24 14:38:06,013 INFO L276 IsEmpty]: Start isEmpty. Operand 36275 states and 38695 transitions. [2018-10-24 14:38:06,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-10-24 14:38:06,032 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:06,033 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2018-10-24 14:38:06,033 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:06,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:06,034 INFO L82 PathProgramCache]: Analyzing trace with hash -536300365, now seen corresponding path program 1 times [2018-10-24 14:38:06,034 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:06,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:06,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:06,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:06,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-10-24 14:38:06,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:38:06,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:38:06,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:38:06,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:38:06,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:38:06,811 INFO L87 Difference]: Start difference. First operand 36275 states and 38695 transitions. Second operand 3 states. Received shutdown request... [2018-10-24 14:38:09,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:38:09,351 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:38:09,357 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:38:09,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:38:09 BoogieIcfgContainer [2018-10-24 14:38:09,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:38:09,358 INFO L168 Benchmark]: Toolchain (without parser) took 253366.23 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 782.5 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:09,359 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:38:09,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1517.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:09,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 539.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -916.5 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:09,361 INFO L168 Benchmark]: Boogie Preprocessor took 329.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:09,362 INFO L168 Benchmark]: RCFGBuilder took 9240.09 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 484.3 MB). Peak memory consumption was 484.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:09,362 INFO L168 Benchmark]: TraceAbstraction took 241733.91 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -903.1 MB). Peak memory consumption was 267.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:09,367 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1517.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 539.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -916.5 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 329.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9240.09 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 484.3 MB). Peak memory consumption was 484.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241733.91 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -903.1 MB). Peak memory consumption was 267.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 59). Cancelled while BasicCegarLoop was constructing difference of abstraction (36275states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (29248 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 241.6s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 179.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5155 SDtfs, 15080 SDslu, 2462 SDs, 0 SdLazy, 33723 SolverSat, 5066 SolverUnsat, 36 SolverUnknown, 0 SolverNotchecked, 167.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1595 GetRequests, 1542 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 51.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36275occurred in iteration=10, 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: 2.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 21647 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 55.1s InterpolantComputationTime, 5426 NumberOfCodeBlocks, 5426 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5411 ConstructedInterpolants, 99 QuantifiedInterpolants, 11928122 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2046 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 5614/6432 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown