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/Problem12_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:09:40,081 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:09:40,083 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:09:40,095 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:09:40,096 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:09:40,099 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:09:40,100 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:09:40,102 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:09:40,105 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:09:40,106 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:09:40,109 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:09:40,109 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:09:40,110 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:09:40,111 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:09:40,112 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:09:40,113 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:09:40,114 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:09:40,116 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:09:40,118 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:09:40,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:09:40,120 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:09:40,122 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:09:40,124 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 16:09:40,131 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 16:09:40,131 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 16:09:40,135 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 16:09:40,136 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 16:09:40,137 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 16:09:40,164 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:09:40,164 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:09:40,165 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:09:40,165 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:09:40,166 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:09:40,166 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:09:40,166 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:09:40,167 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:09:40,167 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:09:40,167 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:09:40,167 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:09:40,167 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:09:40,168 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:09:40,169 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:09:40,169 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:09:40,169 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:09:40,169 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:09:40,170 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:09:40,171 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:09:40,171 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:09:40,171 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:09:40,172 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:09:40,172 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:09:40,172 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:09:40,172 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:09:40,172 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:09:40,172 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:09:40,173 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:09:40,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:09:40,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:09:40,252 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:09:40,253 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:09:40,254 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:09:40,254 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c [2018-10-24 16:09:40,321 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b66c274cd/eef1b2a6af9c408da3b3436551c2fabf/FLAG656413af1 [2018-10-24 16:09:41,132 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:09:41,133 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c [2018-10-24 16:09:41,171 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b66c274cd/eef1b2a6af9c408da3b3436551c2fabf/FLAG656413af1 [2018-10-24 16:09:41,191 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b66c274cd/eef1b2a6af9c408da3b3436551c2fabf [2018-10-24 16:09:41,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:09:41,206 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:09:41,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:09:41,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:09:41,211 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:09:41,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:09:41" (1/1) ... [2018-10-24 16:09:41,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f32220e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:41, skipping insertion in model container [2018-10-24 16:09:41,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:09:41" (1/1) ... [2018-10-24 16:09:41,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:09:41,400 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:09:42,746 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:09:42,751 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:09:43,342 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:09:43,374 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:09:43,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43 WrapperNode [2018-10-24 16:09:43,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:09:43,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:09:43,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:09:43,376 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:09:43,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (1/1) ... [2018-10-24 16:09:43,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (1/1) ... [2018-10-24 16:09:44,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:09:44,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:09:44,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:09:44,030 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:09:44,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (1/1) ... [2018-10-24 16:09:44,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (1/1) ... [2018-10-24 16:09:44,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (1/1) ... [2018-10-24 16:09:44,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (1/1) ... [2018-10-24 16:09:44,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (1/1) ... [2018-10-24 16:09:44,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (1/1) ... [2018-10-24 16:09:44,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (1/1) ... [2018-10-24 16:09:44,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:09:44,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:09:44,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:09:44,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:09:44,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (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 16:09:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:09:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:09:44,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:09:55,105 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:09:55,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:09:55 BoogieIcfgContainer [2018-10-24 16:09:55,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:09:55,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:09:55,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:09:55,110 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:09:55,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:09:41" (1/3) ... [2018-10-24 16:09:55,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c0ec4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:09:55, skipping insertion in model container [2018-10-24 16:09:55,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:43" (2/3) ... [2018-10-24 16:09:55,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c0ec4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:09:55, skipping insertion in model container [2018-10-24 16:09:55,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:09:55" (3/3) ... [2018-10-24 16:09:55,114 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label02_true-unreach-call.c [2018-10-24 16:09:55,124 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:09:55,133 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:09:55,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:09:55,195 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:09:55,196 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:09:55,196 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:09:55,196 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:09:55,196 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:09:55,197 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:09:55,197 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:09:55,197 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:09:55,197 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:09:55,230 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-10-24 16:09:55,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-24 16:09:55,240 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:09:55,242 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:55,244 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:09:55,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:09:55,254 INFO L82 PathProgramCache]: Analyzing trace with hash 265969354, now seen corresponding path program 1 times [2018-10-24 16:09:55,256 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:09:55,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:09:55,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:09:55,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:09:55,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:09:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:09:55,763 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 16:09:55,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:09:55,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:09:55,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:09:55,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:09:55,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:09:55,791 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-10-24 16:10:09,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:10:09,746 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-10-24 16:10:09,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:10:09,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-10-24 16:10:09,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:10:09,787 INFO L225 Difference]: With dead ends: 3146 [2018-10-24 16:10:09,788 INFO L226 Difference]: Without dead ends: 2320 [2018-10-24 16:10:09,796 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:10:09,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-10-24 16:10:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-10-24 16:10:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-10-24 16:10:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3858 transitions. [2018-10-24 16:10:09,975 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3858 transitions. Word has length 63 [2018-10-24 16:10:09,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:10:09,976 INFO L481 AbstractCegarLoop]: Abstraction has 2320 states and 3858 transitions. [2018-10-24 16:10:09,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:10:09,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3858 transitions. [2018-10-24 16:10:09,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-24 16:10:09,988 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:10:09,989 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:10:09,989 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:10:09,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:10:09,991 INFO L82 PathProgramCache]: Analyzing trace with hash -104630118, now seen corresponding path program 1 times [2018-10-24 16:10:09,991 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:10:09,991 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:10:09,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:09,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:10:09,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:10:10,605 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-24 16:10:10,793 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:10:10,793 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:10:10,794 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 16:10:10,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:10:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:10:10,929 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:10:11,102 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:10:11,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:10:11,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-24 16:10:11,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:10:11,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:10:11,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:10:11,144 INFO L87 Difference]: Start difference. First operand 2320 states and 3858 transitions. Second operand 7 states. [2018-10-24 16:10:12,925 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2018-10-24 16:10:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:10:39,619 INFO L93 Difference]: Finished difference Result 15950 states and 27417 transitions. [2018-10-24 16:10:39,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 16:10:39,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2018-10-24 16:10:39,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:10:39,672 INFO L225 Difference]: With dead ends: 15950 [2018-10-24 16:10:39,673 INFO L226 Difference]: Without dead ends: 11373 [2018-10-24 16:10:39,681 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:10:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11373 states. [2018-10-24 16:10:39,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11373 to 6831. [2018-10-24 16:10:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6831 states. [2018-10-24 16:10:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6831 states to 6831 states and 8672 transitions. [2018-10-24 16:10:39,841 INFO L78 Accepts]: Start accepts. Automaton has 6831 states and 8672 transitions. Word has length 135 [2018-10-24 16:10:39,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:10:39,842 INFO L481 AbstractCegarLoop]: Abstraction has 6831 states and 8672 transitions. [2018-10-24 16:10:39,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:10:39,842 INFO L276 IsEmpty]: Start isEmpty. Operand 6831 states and 8672 transitions. [2018-10-24 16:10:39,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-10-24 16:10:39,849 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:10:39,849 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:10:39,850 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:10:39,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:10:39,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1810210403, now seen corresponding path program 1 times [2018-10-24 16:10:39,850 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:10:39,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:10:39,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:39,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:10:39,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:10:40,540 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:10:40,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:10:40,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:10:40,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:10:40,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:10:40,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:10:40,543 INFO L87 Difference]: Start difference. First operand 6831 states and 8672 transitions. Second operand 4 states. [2018-10-24 16:10:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:10:52,766 INFO L93 Difference]: Finished difference Result 26444 states and 33663 transitions. [2018-10-24 16:10:52,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:10:52,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 278 [2018-10-24 16:10:52,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:10:52,837 INFO L225 Difference]: With dead ends: 26444 [2018-10-24 16:10:52,838 INFO L226 Difference]: Without dead ends: 19615 [2018-10-24 16:10:52,852 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 [2018-10-24 16:10:52,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19615 states. [2018-10-24 16:10:53,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19615 to 19615. [2018-10-24 16:10:53,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19615 states. [2018-10-24 16:10:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19615 states to 19615 states and 24199 transitions. [2018-10-24 16:10:53,219 INFO L78 Accepts]: Start accepts. Automaton has 19615 states and 24199 transitions. Word has length 278 [2018-10-24 16:10:53,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:10:53,219 INFO L481 AbstractCegarLoop]: Abstraction has 19615 states and 24199 transitions. [2018-10-24 16:10:53,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:10:53,221 INFO L276 IsEmpty]: Start isEmpty. Operand 19615 states and 24199 transitions. [2018-10-24 16:10:53,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-10-24 16:10:53,228 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:10:53,233 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:10:53,233 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:10:53,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:10:53,234 INFO L82 PathProgramCache]: Analyzing trace with hash 2107836289, now seen corresponding path program 1 times [2018-10-24 16:10:53,234 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:10:53,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:10:53,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:53,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:10:53,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:10:53,686 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 16:10:53,894 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 23 [2018-10-24 16:10:54,225 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-10-24 16:10:54,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:10:54,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 16:10:54,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:10:54,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:10:54,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:10:54,226 INFO L87 Difference]: Start difference. First operand 19615 states and 24199 transitions. Second operand 6 states. [2018-10-24 16:11:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:03,115 INFO L93 Difference]: Finished difference Result 57277 states and 70860 transitions. [2018-10-24 16:11:03,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:11:03,123 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 278 [2018-10-24 16:11:03,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:03,194 INFO L225 Difference]: With dead ends: 57277 [2018-10-24 16:11:03,195 INFO L226 Difference]: Without dead ends: 37664 [2018-10-24 16:11:03,220 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:11:03,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37664 states. [2018-10-24 16:11:03,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37664 to 37664. [2018-10-24 16:11:03,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37664 states. [2018-10-24 16:11:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37664 states to 37664 states and 44629 transitions. [2018-10-24 16:11:03,852 INFO L78 Accepts]: Start accepts. Automaton has 37664 states and 44629 transitions. Word has length 278 [2018-10-24 16:11:03,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:03,853 INFO L481 AbstractCegarLoop]: Abstraction has 37664 states and 44629 transitions. [2018-10-24 16:11:03,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:11:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 37664 states and 44629 transitions. [2018-10-24 16:11:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-10-24 16:11:03,864 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:03,865 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:03,865 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:03,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:03,866 INFO L82 PathProgramCache]: Analyzing trace with hash 267648430, now seen corresponding path program 1 times [2018-10-24 16:11:03,866 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:03,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:03,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:03,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:03,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:04,503 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 16:11:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 121 proven. 4 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-10-24 16:11:04,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:11:04,573 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 16:11:04,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:04,673 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:11:04,738 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:11:04,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:11:04,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 16:11:04,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:11:04,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:11:04,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:04,770 INFO L87 Difference]: Start difference. First operand 37664 states and 44629 transitions. Second operand 4 states. [2018-10-24 16:11:14,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:14,525 INFO L93 Difference]: Finished difference Result 113739 states and 137973 transitions. [2018-10-24 16:11:14,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:11:14,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 311 [2018-10-24 16:11:14,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:14,668 INFO L225 Difference]: With dead ends: 113739 [2018-10-24 16:11:14,668 INFO L226 Difference]: Without dead ends: 76077 [2018-10-24 16:11:14,715 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:14,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76077 states. [2018-10-24 16:11:15,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76077 to 50448. [2018-10-24 16:11:15,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50448 states. [2018-10-24 16:11:15,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50448 states to 50448 states and 59938 transitions. [2018-10-24 16:11:15,904 INFO L78 Accepts]: Start accepts. Automaton has 50448 states and 59938 transitions. Word has length 311 [2018-10-24 16:11:15,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:15,905 INFO L481 AbstractCegarLoop]: Abstraction has 50448 states and 59938 transitions. [2018-10-24 16:11:15,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:11:15,905 INFO L276 IsEmpty]: Start isEmpty. Operand 50448 states and 59938 transitions. [2018-10-24 16:11:15,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2018-10-24 16:11:15,919 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:15,920 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 16:11:15,920 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:15,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:15,921 INFO L82 PathProgramCache]: Analyzing trace with hash -2091924463, now seen corresponding path program 1 times [2018-10-24 16:11:15,921 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:15,921 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:15,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:15,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:15,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 16:11:16,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:16,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:11:16,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:11:16,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:11:16,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:11:16,269 INFO L87 Difference]: Start difference. First operand 50448 states and 59938 transitions. Second operand 3 states. [2018-10-24 16:11:22,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:22,453 INFO L93 Difference]: Finished difference Result 111422 states and 133221 transitions. [2018-10-24 16:11:22,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:11:22,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 365 [2018-10-24 16:11:22,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:22,530 INFO L225 Difference]: With dead ends: 111422 [2018-10-24 16:11:22,531 INFO L226 Difference]: Without dead ends: 60976 [2018-10-24 16:11:22,572 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 16:11:22,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60976 states. [2018-10-24 16:11:23,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60976 to 58720. [2018-10-24 16:11:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58720 states. [2018-10-24 16:11:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58720 states to 58720 states and 68483 transitions. [2018-10-24 16:11:23,265 INFO L78 Accepts]: Start accepts. Automaton has 58720 states and 68483 transitions. Word has length 365 [2018-10-24 16:11:23,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:23,266 INFO L481 AbstractCegarLoop]: Abstraction has 58720 states and 68483 transitions. [2018-10-24 16:11:23,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:11:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 58720 states and 68483 transitions. [2018-10-24 16:11:23,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2018-10-24 16:11:23,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:23,281 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:23,282 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:23,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:23,282 INFO L82 PathProgramCache]: Analyzing trace with hash 850602081, now seen corresponding path program 1 times [2018-10-24 16:11:23,282 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:23,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:23,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:23,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:23,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-10-24 16:11:24,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:24,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:11:24,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:11:24,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:11:24,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:24,311 INFO L87 Difference]: Start difference. First operand 58720 states and 68483 transitions. Second operand 4 states. [2018-10-24 16:11:32,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:32,237 INFO L93 Difference]: Finished difference Result 119694 states and 139344 transitions. [2018-10-24 16:11:32,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:11:32,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 397 [2018-10-24 16:11:32,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:32,303 INFO L225 Difference]: With dead ends: 119694 [2018-10-24 16:11:32,304 INFO L226 Difference]: Without dead ends: 60976 [2018-10-24 16:11:32,343 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 [2018-10-24 16:11:32,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60976 states. [2018-10-24 16:11:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60976 to 60223. [2018-10-24 16:11:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60223 states. [2018-10-24 16:11:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60223 states to 60223 states and 68815 transitions. [2018-10-24 16:11:32,943 INFO L78 Accepts]: Start accepts. Automaton has 60223 states and 68815 transitions. Word has length 397 [2018-10-24 16:11:32,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:32,944 INFO L481 AbstractCegarLoop]: Abstraction has 60223 states and 68815 transitions. [2018-10-24 16:11:32,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:11:32,944 INFO L276 IsEmpty]: Start isEmpty. Operand 60223 states and 68815 transitions. [2018-10-24 16:11:32,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-10-24 16:11:32,960 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:32,961 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:32,961 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:32,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:32,962 INFO L82 PathProgramCache]: Analyzing trace with hash -185181280, now seen corresponding path program 1 times [2018-10-24 16:11:32,962 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:32,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:32,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:32,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:32,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 16:11:33,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:33,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:11:33,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:11:33,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:11:33,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:11:33,799 INFO L87 Difference]: Start difference. First operand 60223 states and 68815 transitions. Second operand 3 states. [2018-10-24 16:11:39,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:39,794 INFO L93 Difference]: Finished difference Result 136988 states and 158243 transitions. [2018-10-24 16:11:39,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:11:39,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 404 [2018-10-24 16:11:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:39,871 INFO L225 Difference]: With dead ends: 136988 [2018-10-24 16:11:39,871 INFO L226 Difference]: Without dead ends: 76767 [2018-10-24 16:11:39,908 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 16:11:39,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76767 states. [2018-10-24 16:11:40,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76767 to 76767. [2018-10-24 16:11:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76767 states. [2018-10-24 16:11:40,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76767 states to 76767 states and 88455 transitions. [2018-10-24 16:11:40,557 INFO L78 Accepts]: Start accepts. Automaton has 76767 states and 88455 transitions. Word has length 404 [2018-10-24 16:11:40,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:40,557 INFO L481 AbstractCegarLoop]: Abstraction has 76767 states and 88455 transitions. [2018-10-24 16:11:40,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:11:40,558 INFO L276 IsEmpty]: Start isEmpty. Operand 76767 states and 88455 transitions. [2018-10-24 16:11:40,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-10-24 16:11:40,569 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:40,570 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:40,570 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:40,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:40,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1014413213, now seen corresponding path program 1 times [2018-10-24 16:11:40,571 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:40,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:40,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:40,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:40,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 16:11:40,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:40,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:11:40,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:11:40,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:11:40,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:40,960 INFO L87 Difference]: Start difference. First operand 76767 states and 88455 transitions. Second operand 4 states. [2018-10-24 16:11:48,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:48,958 INFO L93 Difference]: Finished difference Result 210684 states and 243695 transitions. [2018-10-24 16:11:48,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:11:48,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 421 [2018-10-24 16:11:48,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:49,096 INFO L225 Difference]: With dead ends: 210684 [2018-10-24 16:11:49,097 INFO L226 Difference]: Without dead ends: 127893 [2018-10-24 16:11:49,146 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 [2018-10-24 16:11:49,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127893 states. [2018-10-24 16:11:50,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127893 to 125637. [2018-10-24 16:11:50,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125637 states. [2018-10-24 16:11:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125637 states to 125637 states and 138432 transitions. [2018-10-24 16:11:50,273 INFO L78 Accepts]: Start accepts. Automaton has 125637 states and 138432 transitions. Word has length 421 [2018-10-24 16:11:50,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:50,274 INFO L481 AbstractCegarLoop]: Abstraction has 125637 states and 138432 transitions. [2018-10-24 16:11:50,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:11:50,274 INFO L276 IsEmpty]: Start isEmpty. Operand 125637 states and 138432 transitions. [2018-10-24 16:11:50,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2018-10-24 16:11:50,284 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:50,284 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:50,285 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:50,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:50,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1682051623, now seen corresponding path program 1 times [2018-10-24 16:11:50,285 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:50,285 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:50,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:50,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:50,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 316 proven. 61 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 16:11:50,659 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:11:50,659 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 16:11:50,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:50,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:11:51,016 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 316 proven. 61 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 16:11:51,036 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:11:51,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2018-10-24 16:11:51,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:11:51,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:11:51,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:11:51,038 INFO L87 Difference]: Start difference. First operand 125637 states and 138432 transitions. Second operand 6 states. [2018-10-24 16:12:13,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:12:13,190 INFO L93 Difference]: Finished difference Result 288128 states and 316849 transitions. [2018-10-24 16:12:13,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:12:13,874 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 425 [2018-10-24 16:12:13,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:12:14,055 INFO L225 Difference]: With dead ends: 288128 [2018-10-24 16:12:14,056 INFO L226 Difference]: Without dead ends: 161739 [2018-10-24 16:12:14,111 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 426 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:12:14,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161739 states. [2018-10-24 16:12:15,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161739 to 130900. [2018-10-24 16:12:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130900 states. [2018-10-24 16:12:15,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130900 states to 130900 states and 143705 transitions. [2018-10-24 16:12:15,323 INFO L78 Accepts]: Start accepts. Automaton has 130900 states and 143705 transitions. Word has length 425 [2018-10-24 16:12:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:12:15,324 INFO L481 AbstractCegarLoop]: Abstraction has 130900 states and 143705 transitions. [2018-10-24 16:12:15,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:12:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 130900 states and 143705 transitions. [2018-10-24 16:12:15,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2018-10-24 16:12:15,338 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:12:15,338 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:12:15,338 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:12:15,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:12:15,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1210384162, now seen corresponding path program 1 times [2018-10-24 16:12:15,339 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:12:15,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:12:15,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:15,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:12:15,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:12:15,689 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 16:12:16,133 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 317 proven. 143 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-10-24 16:12:16,133 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:12:16,133 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:12:16,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:12:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:12:16,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:12:16,843 WARN L179 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-10-24 16:12:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 405 proven. 55 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-10-24 16:12:17,320 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:12:17,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2018-10-24 16:12:17,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 16:12:17,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 16:12:17,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-24 16:12:17,322 INFO L87 Difference]: Start difference. First operand 130900 states and 143705 transitions. Second operand 10 states. [2018-10-24 16:12:46,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:12:46,504 INFO L93 Difference]: Finished difference Result 275334 states and 302591 transitions. [2018-10-24 16:12:46,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 16:12:46,505 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 452 [2018-10-24 16:12:46,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:12:46,661 INFO L225 Difference]: With dead ends: 275334 [2018-10-24 16:12:46,661 INFO L226 Difference]: Without dead ends: 139163 [2018-10-24 16:12:46,724 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 449 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-10-24 16:12:46,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139163 states. [2018-10-24 16:12:48,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139163 to 134651. [2018-10-24 16:12:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134651 states. [2018-10-24 16:12:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134651 states to 134651 states and 146638 transitions. [2018-10-24 16:12:48,677 INFO L78 Accepts]: Start accepts. Automaton has 134651 states and 146638 transitions. Word has length 452 [2018-10-24 16:12:48,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:12:48,678 INFO L481 AbstractCegarLoop]: Abstraction has 134651 states and 146638 transitions. [2018-10-24 16:12:48,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 16:12:48,678 INFO L276 IsEmpty]: Start isEmpty. Operand 134651 states and 146638 transitions. [2018-10-24 16:12:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2018-10-24 16:12:48,686 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:12:48,687 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:12:48,687 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:12:48,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:12:48,687 INFO L82 PathProgramCache]: Analyzing trace with hash -815225925, now seen corresponding path program 1 times [2018-10-24 16:12:48,688 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:12:48,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:12:48,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:48,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:12:48,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:12:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 16:12:49,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:12:49,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:12:49,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:12:49,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:12:49,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:12:49,063 INFO L87 Difference]: Start difference. First operand 134651 states and 146638 transitions. Second operand 4 states. [2018-10-24 16:12:58,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:12:58,354 INFO L93 Difference]: Finished difference Result 280580 states and 305767 transitions. [2018-10-24 16:12:58,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:12:58,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 466 [2018-10-24 16:12:58,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:12:58,555 INFO L225 Difference]: With dead ends: 280580 [2018-10-24 16:12:58,556 INFO L226 Difference]: Without dead ends: 146683 [2018-10-24 16:12:58,636 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 16:12:58,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146683 states. [2018-10-24 16:12:59,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146683 to 146683. [2018-10-24 16:12:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146683 states. [2018-10-24 16:12:59,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146683 states to 146683 states and 157498 transitions. [2018-10-24 16:12:59,835 INFO L78 Accepts]: Start accepts. Automaton has 146683 states and 157498 transitions. Word has length 466 [2018-10-24 16:12:59,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:12:59,835 INFO L481 AbstractCegarLoop]: Abstraction has 146683 states and 157498 transitions. [2018-10-24 16:12:59,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:12:59,835 INFO L276 IsEmpty]: Start isEmpty. Operand 146683 states and 157498 transitions. [2018-10-24 16:12:59,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2018-10-24 16:12:59,845 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:12:59,845 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:59,846 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:12:59,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:12:59,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1564236026, now seen corresponding path program 1 times [2018-10-24 16:12:59,846 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:12:59,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:12:59,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:59,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:12:59,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:13:01,201 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-10-24 16:13:01,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:13:01,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:13:01,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:13:01,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:13:01,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:13:01,203 INFO L87 Difference]: Start difference. First operand 146683 states and 157498 transitions. Second operand 4 states. [2018-10-24 16:13:09,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:13:09,687 INFO L93 Difference]: Finished difference Result 292612 states and 314237 transitions. [2018-10-24 16:13:09,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:13:09,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 476 [2018-10-24 16:13:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:13:09,871 INFO L225 Difference]: With dead ends: 292612 [2018-10-24 16:13:09,871 INFO L226 Difference]: Without dead ends: 145930 [2018-10-24 16:13:09,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:13:10,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145930 states. [2018-10-24 16:13:11,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145930 to 143674. [2018-10-24 16:13:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143674 states. [2018-10-24 16:13:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143674 states to 143674 states and 152594 transitions. [2018-10-24 16:13:11,796 INFO L78 Accepts]: Start accepts. Automaton has 143674 states and 152594 transitions. Word has length 476 [2018-10-24 16:13:11,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:13:11,796 INFO L481 AbstractCegarLoop]: Abstraction has 143674 states and 152594 transitions. [2018-10-24 16:13:11,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:13:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 143674 states and 152594 transitions. [2018-10-24 16:13:11,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-10-24 16:13:11,806 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:13:11,807 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:13:11,807 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:13:11,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:13:11,807 INFO L82 PathProgramCache]: Analyzing trace with hash -921309682, now seen corresponding path program 1 times [2018-10-24 16:13:11,808 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:13:11,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:13:11,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:13:11,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:13:11,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:13:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:13:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-10-24 16:13:12,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:13:12,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:13:12,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:13:12,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:13:12,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:13:12,226 INFO L87 Difference]: Start difference. First operand 143674 states and 152594 transitions. Second operand 5 states. [2018-10-24 16:13:23,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:13:23,200 INFO L93 Difference]: Finished difference Result 397154 states and 421763 transitions. [2018-10-24 16:13:23,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:13:23,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 500 [2018-10-24 16:13:23,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:13:23,549 INFO L225 Difference]: With dead ends: 397154 [2018-10-24 16:13:23,550 INFO L226 Difference]: Without dead ends: 254234 [2018-10-24 16:13:23,650 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:13:23,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254234 states. [2018-10-24 16:13:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254234 to 201592. [2018-10-24 16:13:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201592 states. [2018-10-24 16:13:26,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201592 states to 201592 states and 211628 transitions. [2018-10-24 16:13:26,553 INFO L78 Accepts]: Start accepts. Automaton has 201592 states and 211628 transitions. Word has length 500 [2018-10-24 16:13:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:13:26,554 INFO L481 AbstractCegarLoop]: Abstraction has 201592 states and 211628 transitions. [2018-10-24 16:13:26,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:13:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand 201592 states and 211628 transitions. [2018-10-24 16:13:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2018-10-24 16:13:26,562 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:13:26,563 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:13:26,563 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:13:26,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:13:26,564 INFO L82 PathProgramCache]: Analyzing trace with hash 791479475, now seen corresponding path program 1 times [2018-10-24 16:13:26,564 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:13:26,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:13:26,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:13:26,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:13:26,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:13:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:13:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2018-10-24 16:13:27,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:13:27,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:13:27,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:13:27,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:13:27,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:13:27,039 INFO L87 Difference]: Start difference. First operand 201592 states and 211628 transitions. Second operand 4 states. Received shutdown request... [2018-10-24 16:13:35,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:13:35,313 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:13:35,319 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:13:35,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:13:35 BoogieIcfgContainer [2018-10-24 16:13:35,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:13:35,320 INFO L168 Benchmark]: Toolchain (without parser) took 234115.73 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 16:13:35,321 INFO L168 Benchmark]: CDTParser took 0.21 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 16:13:35,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2168.63 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-10-24 16:13:35,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 653.80 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 814.2 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 58.3 MB. Max. memory is 7.1 GB. [2018-10-24 16:13:35,324 INFO L168 Benchmark]: Boogie Preprocessor took 419.21 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2018-10-24 16:13:35,324 INFO L168 Benchmark]: RCFGBuilder took 10656.34 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 210.2 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -159.7 MB). Peak memory consumption was 635.9 MB. Max. memory is 7.1 GB. [2018-10-24 16:13:35,325 INFO L168 Benchmark]: TraceAbstraction took 220212.85 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -162.8 MB). Peak memory consumption was 997.0 MB. Max. memory is 7.1 GB. [2018-10-24 16:13:35,331 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2168.63 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 653.80 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 814.2 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 58.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 419.21 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10656.34 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 210.2 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -159.7 MB). Peak memory consumption was 635.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220212.85 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -162.8 MB). Peak memory consumption was 997.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 198]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 198). Cancelled while BasicCegarLoop was constructing difference of abstraction (201592states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (225098 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 220.1s OverallTime, 15 OverallIterations, 5 TraceHistogramMax, 192.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9559 SDtfs, 42750 SDslu, 1549 SDs, 0 SdLazy, 93468 SolverSat, 15791 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 154.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1407 GetRequests, 1341 SyntacticMatches, 12 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201592occurred in iteration=14, 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: 14.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 125685 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 6815 NumberOfCodeBlocks, 6815 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 6796 ConstructedInterpolants, 0 QuantifiedInterpolants, 7990984 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1706 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 7080/7409 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown