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/Problem13_label23_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 18:04:48,155 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 18:04:48,159 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 18:04:48,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 18:04:48,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 18:04:48,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 18:04:48,175 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 18:04:48,176 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 18:04:48,180 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 18:04:48,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 18:04:48,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 18:04:48,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 18:04:48,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 18:04:48,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 18:04:48,189 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 18:04:48,190 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 18:04:48,190 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 18:04:48,192 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 18:04:48,194 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 18:04:48,195 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 18:04:48,196 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 18:04:48,197 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 18:04:48,200 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 18:04:48,200 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 18:04:48,200 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 18:04:48,201 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 18:04:48,202 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 18:04:48,203 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 18:04:48,203 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 18:04:48,204 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 18:04:48,205 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 18:04:48,205 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 18:04:48,206 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 18:04:48,206 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 18:04:48,207 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 18:04:48,207 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 18:04:48,208 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 [2018-10-23 18:04:48,235 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 18:04:48,236 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 18:04:48,236 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 18:04:48,237 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 18:04:48,238 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 18:04:48,238 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 18:04:48,238 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 18:04:48,238 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 18:04:48,238 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 18:04:48,239 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 18:04:48,239 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 18:04:48,239 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 18:04:48,239 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 18:04:48,239 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 18:04:48,239 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 18:04:48,240 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 18:04:48,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 18:04:48,240 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 18:04:48,240 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 18:04:48,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:04:48,241 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 18:04:48,242 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 18:04:48,242 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 18:04:48,242 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 18:04:48,242 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 18:04:48,242 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 18:04:48,243 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 18:04:48,243 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 18:04:48,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 18:04:48,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 18:04:48,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 18:04:48,319 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 18:04:48,319 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 18:04:48,320 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label23_false-unreach-call.c [2018-10-23 18:04:48,380 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/70fe36343/f7c993b91bc04100a5c351b9d557539d/FLAGcbe77e9ef [2018-10-23 18:04:49,308 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 18:04:49,309 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label23_false-unreach-call.c [2018-10-23 18:04:49,345 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/70fe36343/f7c993b91bc04100a5c351b9d557539d/FLAGcbe77e9ef [2018-10-23 18:04:49,366 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/70fe36343/f7c993b91bc04100a5c351b9d557539d [2018-10-23 18:04:49,379 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 18:04:49,381 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 18:04:49,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 18:04:49,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 18:04:49,389 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 18:04:49,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:04:49" (1/1) ... [2018-10-23 18:04:49,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc1ab2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:49, skipping insertion in model container [2018-10-23 18:04:49,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:04:49" (1/1) ... [2018-10-23 18:04:49,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 18:04:49,606 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 18:04:50,989 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:04:50,994 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 18:04:51,745 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:04:51,787 INFO L193 MainTranslator]: Completed translation [2018-10-23 18:04:51,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51 WrapperNode [2018-10-23 18:04:51,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 18:04:51,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 18:04:51,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 18:04:51,790 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 18:04:51,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (1/1) ... [2018-10-23 18:04:51,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (1/1) ... [2018-10-23 18:04:52,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 18:04:52,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 18:04:52,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 18:04:52,672 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 18:04:52,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (1/1) ... [2018-10-23 18:04:52,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (1/1) ... [2018-10-23 18:04:52,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (1/1) ... [2018-10-23 18:04:52,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (1/1) ... [2018-10-23 18:04:53,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (1/1) ... [2018-10-23 18:04:53,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (1/1) ... [2018-10-23 18:04:53,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (1/1) ... [2018-10-23 18:04:53,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 18:04:53,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 18:04:53,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 18:04:53,235 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 18:04:53,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (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 [2018-10-23 18:04:53,307 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 18:04:53,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 18:04:53,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 18:05:13,155 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 18:05:13,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:05:13 BoogieIcfgContainer [2018-10-23 18:05:13,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 18:05:13,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 18:05:13,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 18:05:13,161 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 18:05:13,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:04:49" (1/3) ... [2018-10-23 18:05:13,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18850ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:05:13, skipping insertion in model container [2018-10-23 18:05:13,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:04:51" (2/3) ... [2018-10-23 18:05:13,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18850ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:05:13, skipping insertion in model container [2018-10-23 18:05:13,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:05:13" (3/3) ... [2018-10-23 18:05:13,165 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label23_false-unreach-call.c [2018-10-23 18:05:13,175 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 18:05:13,184 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 18:05:13,202 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 18:05:13,244 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 18:05:13,244 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 18:05:13,245 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 18:05:13,245 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 18:05:13,245 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 18:05:13,245 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 18:05:13,245 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 18:05:13,245 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 18:05:13,245 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 18:05:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-23 18:05:13,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-23 18:05:13,291 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:05:13,292 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:05:13,295 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:05:13,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:05:13,301 INFO L82 PathProgramCache]: Analyzing trace with hash 340357962, now seen corresponding path program 1 times [2018-10-23 18:05:13,303 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:05:13,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:05:13,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:05:13,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:05:13,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:05:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:05:13,706 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-23 18:05:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:05:13,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:05:13,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:05:13,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:05:13,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:05:13,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:05:13,739 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-23 18:05:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:05:31,951 INFO L93 Difference]: Finished difference Result 3863 states and 7261 transitions. [2018-10-23 18:05:31,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:05:31,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-23 18:05:31,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:05:32,003 INFO L225 Difference]: With dead ends: 3863 [2018-10-23 18:05:32,003 INFO L226 Difference]: Without dead ends: 2757 [2018-10-23 18:05:32,013 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:05:32,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2018-10-23 18:05:32,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2736. [2018-10-23 18:05:32,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2736 states. [2018-10-23 18:05:32,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 4486 transitions. [2018-10-23 18:05:32,173 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 4486 transitions. Word has length 14 [2018-10-23 18:05:32,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:05:32,174 INFO L481 AbstractCegarLoop]: Abstraction has 2736 states and 4486 transitions. [2018-10-23 18:05:32,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:05:32,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 4486 transitions. [2018-10-23 18:05:32,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 18:05:32,179 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:05:32,179 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 18:05:32,179 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:05:32,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:05:32,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1382153005, now seen corresponding path program 1 times [2018-10-23 18:05:32,180 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:05:32,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:05:32,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:05:32,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:05:32,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:05:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:05:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:05:32,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:05:32,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:05:32,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:05:32,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:05:32,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:05:32,485 INFO L87 Difference]: Start difference. First operand 2736 states and 4486 transitions. Second operand 4 states. [2018-10-23 18:05:48,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:05:48,739 INFO L93 Difference]: Finished difference Result 10268 states and 17048 transitions. [2018-10-23 18:05:48,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:05:48,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2018-10-23 18:05:48,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:05:48,782 INFO L225 Difference]: With dead ends: 10268 [2018-10-23 18:05:48,782 INFO L226 Difference]: Without dead ends: 7534 [2018-10-23 18:05:48,789 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 [2018-10-23 18:05:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7534 states. [2018-10-23 18:05:48,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7534 to 7528. [2018-10-23 18:05:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7528 states. [2018-10-23 18:05:48,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7528 states to 7528 states and 11328 transitions. [2018-10-23 18:05:48,941 INFO L78 Accepts]: Start accepts. Automaton has 7528 states and 11328 transitions. Word has length 101 [2018-10-23 18:05:48,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:05:48,942 INFO L481 AbstractCegarLoop]: Abstraction has 7528 states and 11328 transitions. [2018-10-23 18:05:48,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:05:48,943 INFO L276 IsEmpty]: Start isEmpty. Operand 7528 states and 11328 transitions. [2018-10-23 18:05:48,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-23 18:05:48,947 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:05:48,947 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 18:05:48,947 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:05:48,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:05:48,948 INFO L82 PathProgramCache]: Analyzing trace with hash 246824780, now seen corresponding path program 1 times [2018-10-23 18:05:48,948 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:05:48,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:05:48,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:05:48,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:05:48,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:05:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:05:49,341 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:05:49,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:05:49,342 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 [2018-10-23 18:05:49,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:05:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:05:49,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:05:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:05:49,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:05:49,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 18:05:49,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:05:49,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:05:49,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:05:49,742 INFO L87 Difference]: Start difference. First operand 7528 states and 11328 transitions. Second operand 6 states. [2018-10-23 18:06:24,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:06:24,987 INFO L93 Difference]: Finished difference Result 57105 states and 87088 transitions. [2018-10-23 18:06:24,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 18:06:24,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-10-23 18:06:24,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:06:25,143 INFO L225 Difference]: With dead ends: 57105 [2018-10-23 18:06:25,143 INFO L226 Difference]: Without dead ends: 49579 [2018-10-23 18:06:25,162 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-10-23 18:06:25,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49579 states. [2018-10-23 18:06:25,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49579 to 49409. [2018-10-23 18:06:25,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49409 states. [2018-10-23 18:06:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49409 states to 49409 states and 67025 transitions. [2018-10-23 18:06:26,066 INFO L78 Accepts]: Start accepts. Automaton has 49409 states and 67025 transitions. Word has length 111 [2018-10-23 18:06:26,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:06:26,067 INFO L481 AbstractCegarLoop]: Abstraction has 49409 states and 67025 transitions. [2018-10-23 18:06:26,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 18:06:26,067 INFO L276 IsEmpty]: Start isEmpty. Operand 49409 states and 67025 transitions. [2018-10-23 18:06:26,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-10-23 18:06:26,089 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:06:26,090 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:06:26,090 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:06:26,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:06:26,091 INFO L82 PathProgramCache]: Analyzing trace with hash -674539072, now seen corresponding path program 1 times [2018-10-23 18:06:26,091 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:06:26,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:06:26,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:26,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:26,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:26,714 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 6 [2018-10-23 18:06:26,788 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-23 18:06:26,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:06:26,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:06:26,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:06:26,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:06:26,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:06:26,791 INFO L87 Difference]: Start difference. First operand 49409 states and 67025 transitions. Second operand 4 states. [2018-10-23 18:06:39,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:06:39,199 INFO L93 Difference]: Finished difference Result 122514 states and 162273 transitions. [2018-10-23 18:06:39,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:06:39,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 248 [2018-10-23 18:06:39,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:06:39,345 INFO L225 Difference]: With dead ends: 122514 [2018-10-23 18:06:39,345 INFO L226 Difference]: Without dead ends: 73107 [2018-10-23 18:06:39,405 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:06:39,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73107 states. [2018-10-23 18:06:40,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73107 to 63593. [2018-10-23 18:06:40,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63593 states. [2018-10-23 18:06:40,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63593 states to 63593 states and 82894 transitions. [2018-10-23 18:06:40,320 INFO L78 Accepts]: Start accepts. Automaton has 63593 states and 82894 transitions. Word has length 248 [2018-10-23 18:06:40,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:06:40,321 INFO L481 AbstractCegarLoop]: Abstraction has 63593 states and 82894 transitions. [2018-10-23 18:06:40,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:06:40,321 INFO L276 IsEmpty]: Start isEmpty. Operand 63593 states and 82894 transitions. [2018-10-23 18:06:40,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-10-23 18:06:40,335 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:06:40,336 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:06:40,336 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:06:40,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:06:40,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1912931644, now seen corresponding path program 1 times [2018-10-23 18:06:40,336 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:06:40,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:06:40,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:40,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:40,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:40,812 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-23 18:06:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:06:40,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:06:40,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:06:40,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:06:40,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:06:40,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:06:40,904 INFO L87 Difference]: Start difference. First operand 63593 states and 82894 transitions. Second operand 4 states. [2018-10-23 18:06:51,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:06:51,257 INFO L93 Difference]: Finished difference Result 217008 states and 282948 transitions. [2018-10-23 18:06:51,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:06:51,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 257 [2018-10-23 18:06:51,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:06:51,496 INFO L225 Difference]: With dead ends: 217008 [2018-10-23 18:06:51,496 INFO L226 Difference]: Without dead ends: 124158 [2018-10-23 18:06:51,577 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:06:51,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124158 states. [2018-10-23 18:06:52,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124158 to 118635. [2018-10-23 18:06:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118635 states. [2018-10-23 18:06:53,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118635 states to 118635 states and 137509 transitions. [2018-10-23 18:06:53,920 INFO L78 Accepts]: Start accepts. Automaton has 118635 states and 137509 transitions. Word has length 257 [2018-10-23 18:06:53,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:06:53,920 INFO L481 AbstractCegarLoop]: Abstraction has 118635 states and 137509 transitions. [2018-10-23 18:06:53,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:06:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 118635 states and 137509 transitions. [2018-10-23 18:06:53,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-10-23 18:06:53,942 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:06:53,942 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:06:53,942 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:06:53,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:06:53,944 INFO L82 PathProgramCache]: Analyzing trace with hash 967060679, now seen corresponding path program 1 times [2018-10-23 18:06:53,944 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:06:53,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:06:53,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:53,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:53,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:54,525 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-10-23 18:06:54,856 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2018-10-23 18:06:54,957 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-10-23 18:06:54,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:06:54,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:06:54,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:06:54,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:06:54,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:06:54,959 INFO L87 Difference]: Start difference. First operand 118635 states and 137509 transitions. Second operand 5 states. [2018-10-23 18:07:08,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:07:08,367 INFO L93 Difference]: Finished difference Result 246743 states and 285163 transitions. [2018-10-23 18:07:08,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 18:07:08,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2018-10-23 18:07:08,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:07:08,533 INFO L225 Difference]: With dead ends: 246743 [2018-10-23 18:07:08,533 INFO L226 Difference]: Without dead ends: 128898 [2018-10-23 18:07:08,591 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:07:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128898 states. [2018-10-23 18:07:09,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128898 to 128882. [2018-10-23 18:07:09,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128882 states. [2018-10-23 18:07:10,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128882 states to 128882 states and 148041 transitions. [2018-10-23 18:07:10,009 INFO L78 Accepts]: Start accepts. Automaton has 128882 states and 148041 transitions. Word has length 316 [2018-10-23 18:07:10,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:07:10,009 INFO L481 AbstractCegarLoop]: Abstraction has 128882 states and 148041 transitions. [2018-10-23 18:07:10,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:07:10,009 INFO L276 IsEmpty]: Start isEmpty. Operand 128882 states and 148041 transitions. [2018-10-23 18:07:10,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2018-10-23 18:07:10,026 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:07:10,026 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:07:10,027 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:07:10,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:07:10,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1010892797, now seen corresponding path program 1 times [2018-10-23 18:07:10,027 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:07:10,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:07:10,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:10,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:07:10,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:07:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-23 18:07:10,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:07:10,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:07:10,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:07:10,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:07:10,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:07:10,603 INFO L87 Difference]: Start difference. First operand 128882 states and 148041 transitions. Second operand 4 states. [2018-10-23 18:07:23,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:07:23,902 INFO L93 Difference]: Finished difference Result 286961 states and 331371 transitions. [2018-10-23 18:07:23,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:07:23,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 383 [2018-10-23 18:07:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:07:24,085 INFO L225 Difference]: With dead ends: 286961 [2018-10-23 18:07:24,085 INFO L226 Difference]: Without dead ends: 158869 [2018-10-23 18:07:24,168 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:07:24,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158869 states. [2018-10-23 18:07:25,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158869 to 148573. [2018-10-23 18:07:25,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148573 states. [2018-10-23 18:07:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148573 states to 148573 states and 165941 transitions. [2018-10-23 18:07:25,591 INFO L78 Accepts]: Start accepts. Automaton has 148573 states and 165941 transitions. Word has length 383 [2018-10-23 18:07:25,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:07:25,592 INFO L481 AbstractCegarLoop]: Abstraction has 148573 states and 165941 transitions. [2018-10-23 18:07:25,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:07:25,592 INFO L276 IsEmpty]: Start isEmpty. Operand 148573 states and 165941 transitions. [2018-10-23 18:07:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-10-23 18:07:25,598 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:07:25,599 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-23 18:07:25,599 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:07:25,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:07:25,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1970013513, now seen corresponding path program 1 times [2018-10-23 18:07:25,600 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:07:25,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:07:25,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:25,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:07:25,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:07:25,952 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-10-23 18:07:25,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:07:25,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:07:25,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:07:25,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:07:25,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:07:25,954 INFO L87 Difference]: Start difference. First operand 148573 states and 165941 transitions. Second operand 4 states. [2018-10-23 18:07:47,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:07:47,004 INFO L93 Difference]: Finished difference Result 321595 states and 360574 transitions. [2018-10-23 18:07:47,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:07:47,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 413 [2018-10-23 18:07:47,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:07:47,196 INFO L225 Difference]: With dead ends: 321595 [2018-10-23 18:07:47,197 INFO L226 Difference]: Without dead ends: 173812 [2018-10-23 18:07:47,287 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:07:47,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173812 states. [2018-10-23 18:07:49,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173812 to 171419. [2018-10-23 18:07:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171419 states. [2018-10-23 18:07:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171419 states to 171419 states and 186567 transitions. [2018-10-23 18:07:50,084 INFO L78 Accepts]: Start accepts. Automaton has 171419 states and 186567 transitions. Word has length 413 [2018-10-23 18:07:50,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:07:50,085 INFO L481 AbstractCegarLoop]: Abstraction has 171419 states and 186567 transitions. [2018-10-23 18:07:50,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:07:50,085 INFO L276 IsEmpty]: Start isEmpty. Operand 171419 states and 186567 transitions. [2018-10-23 18:07:50,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2018-10-23 18:07:50,095 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:07:50,095 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:07:50,096 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:07:50,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:07:50,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1924570743, now seen corresponding path program 1 times [2018-10-23 18:07:50,096 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:07:50,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:07:50,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:50,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:07:50,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:07:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2018-10-23 18:07:50,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:07:50,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:07:50,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:07:50,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:07:50,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:07:50,634 INFO L87 Difference]: Start difference. First operand 171419 states and 186567 transitions. Second operand 3 states. [2018-10-23 18:07:58,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:07:58,354 INFO L93 Difference]: Finished difference Result 341258 states and 371547 transitions. [2018-10-23 18:07:58,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:07:58,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 473 [2018-10-23 18:07:58,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:07:58,554 INFO L225 Difference]: With dead ends: 341258 [2018-10-23 18:07:58,555 INFO L226 Difference]: Without dead ends: 170629 [2018-10-23 18:07:58,629 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:07:58,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170629 states. [2018-10-23 18:08:01,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170629 to 158802. [2018-10-23 18:08:01,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158802 states. [2018-10-23 18:08:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158802 states to 158802 states and 169532 transitions. [2018-10-23 18:08:01,380 INFO L78 Accepts]: Start accepts. Automaton has 158802 states and 169532 transitions. Word has length 473 [2018-10-23 18:08:01,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:08:01,381 INFO L481 AbstractCegarLoop]: Abstraction has 158802 states and 169532 transitions. [2018-10-23 18:08:01,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:08:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 158802 states and 169532 transitions. [2018-10-23 18:08:01,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2018-10-23 18:08:01,420 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:08:01,421 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:08:01,421 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:08:01,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:08:01,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1267048652, now seen corresponding path program 1 times [2018-10-23 18:08:01,422 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:08:01,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:08:01,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:08:01,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:08:01,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:08:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:08:02,116 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-23 18:08:02,416 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 18:08:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 502 proven. 12 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2018-10-23 18:08:07,374 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:08:07,375 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 [2018-10-23 18:08:07,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:08:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:08:07,609 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:08:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2018-10-23 18:08:08,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:08:08,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-23 18:08:08,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:08:08,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:08:08,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:08:08,060 INFO L87 Difference]: Start difference. First operand 158802 states and 169532 transitions. Second operand 6 states. [2018-10-23 18:08:24,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:08:24,570 INFO L93 Difference]: Finished difference Result 458823 states and 492052 transitions. [2018-10-23 18:08:24,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 18:08:24,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 788 [2018-10-23 18:08:24,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:08:25,010 INFO L225 Difference]: With dead ends: 458823 [2018-10-23 18:08:25,010 INFO L226 Difference]: Without dead ends: 300811 [2018-10-23 18:08:25,121 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 788 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:08:25,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300811 states. [2018-10-23 18:08:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300811 to 188731. [2018-10-23 18:08:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188731 states. [2018-10-23 18:08:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188731 states to 188731 states and 199881 transitions. [2018-10-23 18:08:27,715 INFO L78 Accepts]: Start accepts. Automaton has 188731 states and 199881 transitions. Word has length 788 [2018-10-23 18:08:27,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:08:27,716 INFO L481 AbstractCegarLoop]: Abstraction has 188731 states and 199881 transitions. [2018-10-23 18:08:27,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 18:08:27,717 INFO L276 IsEmpty]: Start isEmpty. Operand 188731 states and 199881 transitions. [2018-10-23 18:08:27,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2018-10-23 18:08:27,748 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:08:27,749 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:08:27,749 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:08:27,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:08:27,749 INFO L82 PathProgramCache]: Analyzing trace with hash -360233870, now seen corresponding path program 1 times [2018-10-23 18:08:27,750 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:08:27,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:08:27,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:08:27,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:08:27,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:08:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:08:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2018-10-23 18:08:28,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:08:28,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:08:28,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:08:28,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:08:28,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:08:28,996 INFO L87 Difference]: Start difference. First operand 188731 states and 199881 transitions. Second operand 4 states. Received shutdown request... [2018-10-23 18:08:30,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:08:30,055 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 18:08:30,060 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 18:08:30,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:08:30 BoogieIcfgContainer [2018-10-23 18:08:30,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 18:08:30,061 INFO L168 Benchmark]: Toolchain (without parser) took 220681.54 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-23 18:08:30,062 INFO L168 Benchmark]: CDTParser took 0.31 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. [2018-10-23 18:08:30,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2405.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 232.5 MB). Peak memory consumption was 232.5 MB. Max. memory is 7.1 GB. [2018-10-23 18:08:30,064 INFO L168 Benchmark]: Boogie Procedure Inliner took 882.38 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 838.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-23 18:08:30,065 INFO L168 Benchmark]: Boogie Preprocessor took 562.25 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2018-10-23 18:08:30,066 INFO L168 Benchmark]: RCFGBuilder took 19921.83 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 219.2 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 66.6 MB). Peak memory consumption was 582.4 MB. Max. memory is 7.1 GB. [2018-10-23 18:08:30,067 INFO L168 Benchmark]: TraceAbstraction took 196903.14 ms. Allocated memory was 2.6 GB in the beginning and 4.4 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -853.7 MB). Peak memory consumption was 980.8 MB. Max. memory is 7.1 GB. [2018-10-23 18:08:30,072 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 2405.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 232.5 MB). Peak memory consumption was 232.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 882.38 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 838.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 562.25 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 19921.83 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 219.2 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 66.6 MB). Peak memory consumption was 582.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196903.14 ms. Allocated memory was 2.6 GB in the beginning and 4.4 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -853.7 MB). Peak memory consumption was 980.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 51). Cancelled while BasicCegarLoop was constructing difference of abstraction (188731states) and FLOYD_HOARE automaton (currently 3 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (527 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 196.8s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 167.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8034 SDtfs, 25977 SDslu, 3277 SDs, 0 SdLazy, 58457 SolverSat, 14430 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 140.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 956 GetRequests, 916 SyntacticMatches, 10 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188731occurred 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: 15.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 151846 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 4791 NumberOfCodeBlocks, 4791 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4778 ConstructedInterpolants, 0 QuantifiedInterpolants, 5786652 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1155 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 4963/4982 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown