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/Problem19_label10_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:41:43,184 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:41:43,187 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:41:43,203 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:41:43,203 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:41:43,205 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:41:43,207 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:41:43,210 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:41:43,212 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:41:43,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:41:43,221 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:41:43,221 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:41:43,223 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:41:43,226 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:41:43,227 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:41:43,228 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:41:43,230 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:41:43,234 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:41:43,236 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:41:43,239 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:41:43,242 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:41:43,244 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:41:43,248 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:41:43,250 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:41:43,250 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:41:43,251 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:41:43,252 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:41:43,255 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:41:43,255 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:41:43,256 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:41:43,257 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:41:43,257 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 14:41:43,258 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 14:41:43,259 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 14:41:43,260 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 14:41:43,261 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 14:41:43,262 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 14:41:43,276 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:41:43,277 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:41:43,277 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:41:43,278 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:41:43,278 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:41:43,278 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:41:43,279 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:41:43,279 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:41:43,279 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:41:43,279 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:41:43,279 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:41:43,280 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:41:43,280 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:41:43,280 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:41:43,280 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:41:43,280 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:41:43,281 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:41:43,281 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:41:43,281 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:41:43,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:41:43,281 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:41:43,282 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:41:43,282 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:41:43,282 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:41:43,282 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:41:43,282 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:41:43,283 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:41:43,283 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:41:43,327 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:41:43,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:41:43,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:41:43,346 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:41:43,346 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:41:43,347 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label10_false-unreach-call.c [2018-10-24 14:41:43,409 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cc2e82cf7/e61d56226c4e4bb28455371f1dd168cc/FLAGf84025e31 [2018-10-24 14:41:44,351 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:41:44,354 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label10_false-unreach-call.c [2018-10-24 14:41:44,412 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cc2e82cf7/e61d56226c4e4bb28455371f1dd168cc/FLAGf84025e31 [2018-10-24 14:41:44,430 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cc2e82cf7/e61d56226c4e4bb28455371f1dd168cc [2018-10-24 14:41:44,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:41:44,446 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:41:44,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:41:44,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:41:44,453 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:41:44,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:41:44" (1/1) ... [2018-10-24 14:41:44,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d3a67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:44, skipping insertion in model container [2018-10-24 14:41:44,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:41:44" (1/1) ... [2018-10-24 14:41:44,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:41:44,726 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:41:46,812 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:41:46,818 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:41:48,368 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:41:48,425 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:41:48,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48 WrapperNode [2018-10-24 14:41:48,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:41:48,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:41:48,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:41:48,428 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:41:48,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (1/1) ... [2018-10-24 14:41:48,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (1/1) ... [2018-10-24 14:41:49,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:41:49,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:41:49,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:41:49,589 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:41:49,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (1/1) ... [2018-10-24 14:41:49,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (1/1) ... [2018-10-24 14:41:49,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (1/1) ... [2018-10-24 14:41:49,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (1/1) ... [2018-10-24 14:41:50,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (1/1) ... [2018-10-24 14:41:50,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (1/1) ... [2018-10-24 14:41:50,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (1/1) ... [2018-10-24 14:41:50,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:41:50,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:41:50,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:41:50,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:41:50,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (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 14:41:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:41:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:41:50,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:42:07,667 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:42:07,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:42:07 BoogieIcfgContainer [2018-10-24 14:42:07,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:42:07,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:42:07,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:42:07,684 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:42:07,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:41:44" (1/3) ... [2018-10-24 14:42:07,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa48d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:42:07, skipping insertion in model container [2018-10-24 14:42:07,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:41:48" (2/3) ... [2018-10-24 14:42:07,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa48d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:42:07, skipping insertion in model container [2018-10-24 14:42:07,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:42:07" (3/3) ... [2018-10-24 14:42:07,694 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label10_false-unreach-call.c [2018-10-24 14:42:07,707 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:42:07,718 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:42:07,736 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:42:07,788 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:42:07,789 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:42:07,789 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:42:07,789 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:42:07,789 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:42:07,789 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:42:07,789 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:42:07,790 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:42:07,790 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:42:07,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:42:07,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-24 14:42:07,856 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:42:07,858 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:42:07,860 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:42:07,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:42:07,867 INFO L82 PathProgramCache]: Analyzing trace with hash 150940466, now seen corresponding path program 1 times [2018-10-24 14:42:07,869 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:42:07,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:42:07,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:42:07,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:42:07,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:42:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:42:08,086 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 14:42:08,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:42:08,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:42:08,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:42:08,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:42:08,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:42:08,114 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 3 states. [2018-10-24 14:42:28,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:42:28,920 INFO L93 Difference]: Finished difference Result 4960 states and 9401 transitions. [2018-10-24 14:42:28,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:42:28,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-24 14:42:28,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:42:28,971 INFO L225 Difference]: With dead ends: 4960 [2018-10-24 14:42:28,972 INFO L226 Difference]: Without dead ends: 3207 [2018-10-24 14:42:28,986 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:42:29,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2018-10-24 14:42:29,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 3186. [2018-10-24 14:42:29,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-10-24 14:42:29,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5129 transitions. [2018-10-24 14:42:29,184 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5129 transitions. Word has length 8 [2018-10-24 14:42:29,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:42:29,185 INFO L481 AbstractCegarLoop]: Abstraction has 3186 states and 5129 transitions. [2018-10-24 14:42:29,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:42:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5129 transitions. [2018-10-24 14:42:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-24 14:42:29,188 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:42:29,189 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:42:29,189 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:42:29,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:42:29,190 INFO L82 PathProgramCache]: Analyzing trace with hash 613440982, now seen corresponding path program 1 times [2018-10-24 14:42:29,190 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:42:29,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:42:29,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:42:29,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:42:29,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:42:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:42:29,604 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 14:42:30,279 WARN L179 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 14:42:30,840 WARN L179 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 14:42:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:42:31,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:42:31,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:42:31,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:42:31,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:42:31,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:42:31,173 INFO L87 Difference]: Start difference. First operand 3186 states and 5129 transitions. Second operand 6 states. [2018-10-24 14:42:31,367 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 14:43:12,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:43:12,470 INFO L93 Difference]: Finished difference Result 15985 states and 25596 transitions. [2018-10-24 14:43:12,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:43:12,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2018-10-24 14:43:12,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:43:12,528 INFO L225 Difference]: With dead ends: 15985 [2018-10-24 14:43:12,528 INFO L226 Difference]: Without dead ends: 12801 [2018-10-24 14:43:12,535 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:43:12,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12801 states. [2018-10-24 14:43:12,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12801 to 11428. [2018-10-24 14:43:12,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11428 states. [2018-10-24 14:43:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11428 states to 11428 states and 14864 transitions. [2018-10-24 14:43:12,749 INFO L78 Accepts]: Start accepts. Automaton has 11428 states and 14864 transitions. Word has length 76 [2018-10-24 14:43:12,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:43:12,749 INFO L481 AbstractCegarLoop]: Abstraction has 11428 states and 14864 transitions. [2018-10-24 14:43:12,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:43:12,750 INFO L276 IsEmpty]: Start isEmpty. Operand 11428 states and 14864 transitions. [2018-10-24 14:43:12,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-10-24 14:43:12,761 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:43:12,762 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 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 14:43:12,762 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:43:12,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:43:12,763 INFO L82 PathProgramCache]: Analyzing trace with hash -315703795, now seen corresponding path program 1 times [2018-10-24 14:43:12,763 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:43:12,763 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:43:12,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:12,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:43:12,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:43:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 14:43:13,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:43:13,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:43:13,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:43:13,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:43:13,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:43:13,927 INFO L87 Difference]: Start difference. First operand 11428 states and 14864 transitions. Second operand 7 states. [2018-10-24 14:43:49,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:43:49,472 INFO L93 Difference]: Finished difference Result 35162 states and 47050 transitions. [2018-10-24 14:43:49,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:43:49,474 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 294 [2018-10-24 14:43:49,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:43:49,541 INFO L225 Difference]: With dead ends: 35162 [2018-10-24 14:43:49,541 INFO L226 Difference]: Without dead ends: 23736 [2018-10-24 14:43:49,558 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:43:49,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23736 states. [2018-10-24 14:43:49,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23736 to 21001. [2018-10-24 14:43:49,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21001 states. [2018-10-24 14:43:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21001 states to 21001 states and 24774 transitions. [2018-10-24 14:43:49,951 INFO L78 Accepts]: Start accepts. Automaton has 21001 states and 24774 transitions. Word has length 294 [2018-10-24 14:43:49,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:43:49,952 INFO L481 AbstractCegarLoop]: Abstraction has 21001 states and 24774 transitions. [2018-10-24 14:43:49,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:43:49,954 INFO L276 IsEmpty]: Start isEmpty. Operand 21001 states and 24774 transitions. [2018-10-24 14:43:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-10-24 14:43:49,963 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:43:49,963 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:49,964 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:43:49,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:43:49,964 INFO L82 PathProgramCache]: Analyzing trace with hash 879832359, now seen corresponding path program 1 times [2018-10-24 14:43:49,965 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:43:49,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:43:49,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:49,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:43:49,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:43:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 14:43:50,594 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:43:50,594 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 14:43:50,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:43:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:43:50,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:43:50,856 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:43:50,887 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:43:50,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:43:50,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:43:50,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:43:50,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:43:50,890 INFO L87 Difference]: Start difference. First operand 21001 states and 24774 transitions. Second operand 4 states. [2018-10-24 14:44:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:44:18,023 INFO L93 Difference]: Finished difference Result 68210 states and 82910 transitions. [2018-10-24 14:44:18,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:44:18,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 322 [2018-10-24 14:44:18,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:44:18,130 INFO L225 Difference]: With dead ends: 68210 [2018-10-24 14:44:18,130 INFO L226 Difference]: Without dead ends: 48577 [2018-10-24 14:44:18,155 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 322 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 14:44:18,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48577 states. [2018-10-24 14:44:18,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48577 to 29198. [2018-10-24 14:44:18,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29198 states. [2018-10-24 14:44:18,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29198 states to 29198 states and 35809 transitions. [2018-10-24 14:44:18,802 INFO L78 Accepts]: Start accepts. Automaton has 29198 states and 35809 transitions. Word has length 322 [2018-10-24 14:44:18,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:44:18,803 INFO L481 AbstractCegarLoop]: Abstraction has 29198 states and 35809 transitions. [2018-10-24 14:44:18,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:44:18,804 INFO L276 IsEmpty]: Start isEmpty. Operand 29198 states and 35809 transitions. [2018-10-24 14:44:18,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-10-24 14:44:18,810 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:44:18,811 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:44:18,811 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:44:18,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:44:18,812 INFO L82 PathProgramCache]: Analyzing trace with hash -644905657, now seen corresponding path program 1 times [2018-10-24 14:44:18,812 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:44:18,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:44:18,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:18,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:18,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:19,218 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 14:44:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:44:19,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:44:19,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:44:19,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:44:19,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:44:19,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:44:19,301 INFO L87 Difference]: Start difference. First operand 29198 states and 35809 transitions. Second operand 4 states. [2018-10-24 14:44:37,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:44:37,842 INFO L93 Difference]: Finished difference Result 66624 states and 83609 transitions. [2018-10-24 14:44:37,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:44:37,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 342 [2018-10-24 14:44:37,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:44:37,967 INFO L225 Difference]: With dead ends: 66624 [2018-10-24 14:44:37,967 INFO L226 Difference]: Without dead ends: 33328 [2018-10-24 14:44:38,004 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 14:44:38,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33328 states. [2018-10-24 14:44:38,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33328 to 33320. [2018-10-24 14:44:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33320 states. [2018-10-24 14:44:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33320 states to 33320 states and 40360 transitions. [2018-10-24 14:44:38,391 INFO L78 Accepts]: Start accepts. Automaton has 33320 states and 40360 transitions. Word has length 342 [2018-10-24 14:44:38,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:44:38,392 INFO L481 AbstractCegarLoop]: Abstraction has 33320 states and 40360 transitions. [2018-10-24 14:44:38,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:44:38,392 INFO L276 IsEmpty]: Start isEmpty. Operand 33320 states and 40360 transitions. [2018-10-24 14:44:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2018-10-24 14:44:38,400 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:44:38,401 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:44:38,401 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:44:38,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:44:38,401 INFO L82 PathProgramCache]: Analyzing trace with hash 2105705439, now seen corresponding path program 1 times [2018-10-24 14:44:38,401 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:44:38,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:44:38,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:38,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:38,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:38,915 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 146 proven. 65 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 14:44:38,915 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:44:38,915 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 14:44:38,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:39,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:44:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 14:44:39,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:44:39,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 14:44:39,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:44:39,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:44:39,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:44:39,193 INFO L87 Difference]: Start difference. First operand 33320 states and 40360 transitions. Second operand 5 states. [2018-10-24 14:44:39,993 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-24 14:45:15,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:45:15,728 INFO L93 Difference]: Finished difference Result 155845 states and 194733 transitions. [2018-10-24 14:45:15,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:45:15,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 382 [2018-10-24 14:45:15,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:45:15,858 INFO L225 Difference]: With dead ends: 155845 [2018-10-24 14:45:15,858 INFO L226 Difference]: Without dead ends: 112961 [2018-10-24 14:45:15,896 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:45:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112961 states. [2018-10-24 14:45:16,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112961 to 112868. [2018-10-24 14:45:16,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112868 states. [2018-10-24 14:45:16,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112868 states to 112868 states and 125755 transitions. [2018-10-24 14:45:16,971 INFO L78 Accepts]: Start accepts. Automaton has 112868 states and 125755 transitions. Word has length 382 [2018-10-24 14:45:16,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:45:16,972 INFO L481 AbstractCegarLoop]: Abstraction has 112868 states and 125755 transitions. [2018-10-24 14:45:16,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:45:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 112868 states and 125755 transitions. [2018-10-24 14:45:16,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2018-10-24 14:45:16,987 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:16,988 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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] [2018-10-24 14:45:16,988 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:16,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:16,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1246358260, now seen corresponding path program 1 times [2018-10-24 14:45:16,989 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:16,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:16,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:16,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:16,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:17,937 WARN L179 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 14:45:18,619 WARN L179 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-24 14:45:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 413 proven. 4 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-10-24 14:45:19,920 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:45:19,920 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 14:45:19,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:20,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:45:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-10-24 14:45:20,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:45:20,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 14:45:20,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:45:20,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:45:20,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:45:20,449 INFO L87 Difference]: Start difference. First operand 112868 states and 125755 transitions. Second operand 5 states. Received shutdown request... [2018-10-24 14:45:45,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:45:45,145 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:45:45,150 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:45:45,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:45:45 BoogieIcfgContainer [2018-10-24 14:45:45,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:45:45,151 INFO L168 Benchmark]: Toolchain (without parser) took 240707.22 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -510.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 14:45:45,152 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 14:45:45,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3979.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 976.6 MB in the end (delta: 403.4 MB). Peak memory consumption was 403.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:45:45,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 1160.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 844.6 MB). Free memory was 976.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 107.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:45:45,155 INFO L168 Benchmark]: Boogie Preprocessor took 852.68 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 102.2 MB). Peak memory consumption was 102.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:45:45,156 INFO L168 Benchmark]: RCFGBuilder took 17229.34 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 287.3 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -391.7 MB). Peak memory consumption was 875.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:45:45,157 INFO L168 Benchmark]: TraceAbstraction took 217478.85 ms. Allocated memory was 2.7 GB in the beginning and 4.1 GB in the end (delta: 1.4 GB). Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 523.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 14:45:45,162 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 3979.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 976.6 MB in the end (delta: 403.4 MB). Peak memory consumption was 403.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1160.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 844.6 MB). Free memory was 976.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 107.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 852.68 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 102.2 MB). Peak memory consumption was 102.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17229.34 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 287.3 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -391.7 MB). Peak memory consumption was 875.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217478.85 ms. Allocated memory was 2.7 GB in the beginning and 4.1 GB in the end (delta: 1.4 GB). Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 523.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 37). Cancelled while BasicCegarLoop was constructing difference of abstraction (112868states) and FLOYD_HOARE automaton (currently 6 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (178607 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 217.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 205.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10304 SDtfs, 38665 SDslu, 4074 SDs, 0 SdLazy, 90132 SolverSat, 19884 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 177.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1370 GetRequests, 1336 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112868occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 23609 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 3378 NumberOfCodeBlocks, 3378 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3368 ConstructedInterpolants, 0 QuantifiedInterpolants, 6096887 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1652 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 1852/1925 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown