./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be78f24495f6395b0c8bd7d622003423e0349301 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:08:02,426 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:08:02,427 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:08:02,435 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:08:02,435 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:08:02,436 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:08:02,437 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:08:02,438 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:08:02,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:08:02,439 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:08:02,440 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:08:02,440 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:08:02,441 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:08:02,441 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:08:02,442 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:08:02,443 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:08:02,443 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:08:02,444 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:08:02,445 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:08:02,446 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:08:02,446 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:08:02,447 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:08:02,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:08:02,448 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:08:02,448 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:08:02,449 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:08:02,450 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:08:02,450 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:08:02,451 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:08:02,452 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:08:02,452 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:08:02,452 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:08:02,453 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:08:02,453 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:08:02,453 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:08:02,454 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:08:02,454 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 13:08:02,461 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:08:02,462 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:08:02,462 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:08:02,462 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:08:02,463 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:08:02,463 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:08:02,463 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:08:02,463 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:08:02,464 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:08:02,464 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:08:02,464 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:08:02,464 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:08:02,464 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:08:02,464 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:08:02,464 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:08:02,465 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:08:02,465 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:08:02,465 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:08:02,465 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:08:02,465 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:08:02,466 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:08:02,466 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:08:02,466 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:08:02,466 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:08:02,466 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:08:02,466 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:08:02,466 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:08:02,467 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:08:02,467 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:08:02,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:08:02,467 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be78f24495f6395b0c8bd7d622003423e0349301 [2018-11-28 13:08:02,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:08:02,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:08:02,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:08:02,503 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:08:02,504 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:08:02,504 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i [2018-11-28 13:08:02,543 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/data/afc9def44/326db0c1da1a4f45949debf49283f936/FLAG76d0ffc40 [2018-11-28 13:08:02,971 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:08:02,972 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i [2018-11-28 13:08:02,986 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/data/afc9def44/326db0c1da1a4f45949debf49283f936/FLAG76d0ffc40 [2018-11-28 13:08:03,306 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/data/afc9def44/326db0c1da1a4f45949debf49283f936 [2018-11-28 13:08:03,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:08:03,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:08:03,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:08:03,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:08:03,313 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:08:03,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:08:03" (1/1) ... [2018-11-28 13:08:03,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549fcc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:03, skipping insertion in model container [2018-11-28 13:08:03,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:08:03" (1/1) ... [2018-11-28 13:08:03,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:08:03,358 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:08:03,836 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:08:03,911 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:08:03,959 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:08:04,122 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:08:04,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04 WrapperNode [2018-11-28 13:08:04,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:08:04,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:08:04,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:08:04,123 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:08:04,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... [2018-11-28 13:08:04,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... [2018-11-28 13:08:04,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:08:04,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:08:04,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:08:04,170 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:08:04,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... [2018-11-28 13:08:04,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... [2018-11-28 13:08:04,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... [2018-11-28 13:08:04,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... [2018-11-28 13:08:04,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... [2018-11-28 13:08:04,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... [2018-11-28 13:08:04,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... [2018-11-28 13:08:04,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:08:04,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:08:04,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:08:04,204 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:08:04,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/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 [2018-11-28 13:08:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:08:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:08:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 13:08:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 13:08:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:08:04,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:08:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-11-28 13:08:04,239 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-11-28 13:08:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 13:08:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 13:08:04,240 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 13:08:04,667 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:08:04,668 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-28 13:08:04,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:08:04 BoogieIcfgContainer [2018-11-28 13:08:04,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:08:04,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:08:04,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:08:04,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:08:04,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:08:03" (1/3) ... [2018-11-28 13:08:04,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f773a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:08:04, skipping insertion in model container [2018-11-28 13:08:04,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:08:04" (2/3) ... [2018-11-28 13:08:04,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f773a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:08:04, skipping insertion in model container [2018-11-28 13:08:04,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:08:04" (3/3) ... [2018-11-28 13:08:04,673 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global_false-unreach-call.i [2018-11-28 13:08:04,698 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,698 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,698 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,698 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,698 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,698 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,700 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,700 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,700 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,700 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,700 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,700 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,700 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,701 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,701 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,701 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,701 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,701 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,701 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,702 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,702 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,702 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,702 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,702 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,702 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,702 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,703 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,703 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,703 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,703 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,703 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,703 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,704 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,704 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,704 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,704 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,704 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,704 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,704 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:08:04,722 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 13:08:04,723 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:08:04,730 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 13:08:04,744 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 13:08:04,765 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:08:04,766 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:08:04,766 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:08:04,766 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:08:04,766 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:08:04,766 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:08:04,766 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:08:04,766 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:08:04,767 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:08:04,776 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 137places, 145 transitions [2018-11-28 13:08:04,904 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4725 states. [2018-11-28 13:08:04,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4725 states. [2018-11-28 13:08:04,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 13:08:04,913 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:04,913 INFO L402 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] [2018-11-28 13:08:04,915 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:04,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:04,920 INFO L82 PathProgramCache]: Analyzing trace with hash 441784776, now seen corresponding path program 1 times [2018-11-28 13:08:04,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:04,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:05,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:05,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:08:05,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:05,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:05,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:08:05,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:08:05,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:08:05,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:08:05,266 INFO L87 Difference]: Start difference. First operand 4725 states. Second operand 6 states. [2018-11-28 13:08:05,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:05,593 INFO L93 Difference]: Finished difference Result 4724 states and 12876 transitions. [2018-11-28 13:08:05,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:08:05,594 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-28 13:08:05,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:05,621 INFO L225 Difference]: With dead ends: 4724 [2018-11-28 13:08:05,621 INFO L226 Difference]: Without dead ends: 3864 [2018-11-28 13:08:05,622 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 13:08:05,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2018-11-28 13:08:05,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3863. [2018-11-28 13:08:05,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3863 states. [2018-11-28 13:08:05,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3863 states to 3863 states and 10474 transitions. [2018-11-28 13:08:05,750 INFO L78 Accepts]: Start accepts. Automaton has 3863 states and 10474 transitions. Word has length 31 [2018-11-28 13:08:05,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:05,751 INFO L480 AbstractCegarLoop]: Abstraction has 3863 states and 10474 transitions. [2018-11-28 13:08:05,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:08:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3863 states and 10474 transitions. [2018-11-28 13:08:05,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-28 13:08:05,752 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:05,752 INFO L402 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] [2018-11-28 13:08:05,752 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:05,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:05,753 INFO L82 PathProgramCache]: Analyzing trace with hash -804856226, now seen corresponding path program 1 times [2018-11-28 13:08:05,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:05,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:05,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:05,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:08:05,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:05,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:05,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 13:08:06,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:08:06,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:08:06,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:08:06,001 INFO L87 Difference]: Start difference. First operand 3863 states and 10474 transitions. Second operand 8 states. [2018-11-28 13:08:06,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:06,500 INFO L93 Difference]: Finished difference Result 3865 states and 10476 transitions. [2018-11-28 13:08:06,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 13:08:06,501 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-28 13:08:06,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:06,509 INFO L225 Difference]: With dead ends: 3865 [2018-11-28 13:08:06,509 INFO L226 Difference]: Without dead ends: 3865 [2018-11-28 13:08:06,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2018-11-28 13:08:06,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3865 states. [2018-11-28 13:08:06,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3865 to 3861. [2018-11-28 13:08:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3861 states. [2018-11-28 13:08:06,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 10472 transitions. [2018-11-28 13:08:06,567 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 10472 transitions. Word has length 37 [2018-11-28 13:08:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:06,567 INFO L480 AbstractCegarLoop]: Abstraction has 3861 states and 10472 transitions. [2018-11-28 13:08:06,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:08:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 10472 transitions. [2018-11-28 13:08:06,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-28 13:08:06,569 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:06,570 INFO L402 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] [2018-11-28 13:08:06,570 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:06,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:06,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1378309502, now seen corresponding path program 1 times [2018-11-28 13:08:06,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:06,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:06,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:06,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:08:06,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:06,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:06,721 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:06,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 13:08:06,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:08:06,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:08:06,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:08:06,722 INFO L87 Difference]: Start difference. First operand 3861 states and 10472 transitions. Second operand 8 states. [2018-11-28 13:08:07,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:07,726 INFO L93 Difference]: Finished difference Result 5825 states and 15810 transitions. [2018-11-28 13:08:07,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-28 13:08:07,726 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2018-11-28 13:08:07,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:07,744 INFO L225 Difference]: With dead ends: 5825 [2018-11-28 13:08:07,744 INFO L226 Difference]: Without dead ends: 5825 [2018-11-28 13:08:07,744 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:08:07,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5825 states. [2018-11-28 13:08:07,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5825 to 4385. [2018-11-28 13:08:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4385 states. [2018-11-28 13:08:07,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4385 states to 4385 states and 11916 transitions. [2018-11-28 13:08:07,818 INFO L78 Accepts]: Start accepts. Automaton has 4385 states and 11916 transitions. Word has length 55 [2018-11-28 13:08:07,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:07,818 INFO L480 AbstractCegarLoop]: Abstraction has 4385 states and 11916 transitions. [2018-11-28 13:08:07,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:08:07,819 INFO L276 IsEmpty]: Start isEmpty. Operand 4385 states and 11916 transitions. [2018-11-28 13:08:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-28 13:08:07,822 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:07,822 INFO L402 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] [2018-11-28 13:08:07,822 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:07,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:07,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1957942992, now seen corresponding path program 1 times [2018-11-28 13:08:07,823 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:07,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:07,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:07,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:08:07,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:07,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:07,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 13:08:07,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:08:07,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:08:07,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:08:07,960 INFO L87 Difference]: Start difference. First operand 4385 states and 11916 transitions. Second operand 8 states. [2018-11-28 13:08:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:08,539 INFO L93 Difference]: Finished difference Result 6349 states and 17158 transitions. [2018-11-28 13:08:08,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 13:08:08,540 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-11-28 13:08:08,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:08,557 INFO L225 Difference]: With dead ends: 6349 [2018-11-28 13:08:08,557 INFO L226 Difference]: Without dead ends: 5317 [2018-11-28 13:08:08,557 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2018-11-28 13:08:08,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2018-11-28 13:08:08,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 5125. [2018-11-28 13:08:08,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5125 states. [2018-11-28 13:08:08,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 13985 transitions. [2018-11-28 13:08:08,660 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 13985 transitions. Word has length 61 [2018-11-28 13:08:08,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:08,660 INFO L480 AbstractCegarLoop]: Abstraction has 5125 states and 13985 transitions. [2018-11-28 13:08:08,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:08:08,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 13985 transitions. [2018-11-28 13:08:08,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-28 13:08:08,665 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:08,665 INFO L402 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, 1, 1, 1, 1] [2018-11-28 13:08:08,665 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:08,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:08,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1563836415, now seen corresponding path program 1 times [2018-11-28 13:08:08,665 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:08,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:08,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:08,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:08:08,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:08,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:08,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:08,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 13:08:08,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:08:08,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:08:08,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:08:08,743 INFO L87 Difference]: Start difference. First operand 5125 states and 13985 transitions. Second operand 5 states. [2018-11-28 13:08:08,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:08,802 INFO L93 Difference]: Finished difference Result 1780 states and 4650 transitions. [2018-11-28 13:08:08,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:08:08,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2018-11-28 13:08:08,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:08,807 INFO L225 Difference]: With dead ends: 1780 [2018-11-28 13:08:08,807 INFO L226 Difference]: Without dead ends: 1780 [2018-11-28 13:08:08,807 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:08:08,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2018-11-28 13:08:08,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1780. [2018-11-28 13:08:08,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1780 states. [2018-11-28 13:08:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 4650 transitions. [2018-11-28 13:08:08,845 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 4650 transitions. Word has length 67 [2018-11-28 13:08:08,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:08,845 INFO L480 AbstractCegarLoop]: Abstraction has 1780 states and 4650 transitions. [2018-11-28 13:08:08,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:08:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 4650 transitions. [2018-11-28 13:08:08,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:08,850 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:08,850 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:08,850 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:08,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:08,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1243979628, now seen corresponding path program 1 times [2018-11-28 13:08:08,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:08,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:08,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:08,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:08:08,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:09,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:09,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:09,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-28 13:08:09,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-28 13:08:09,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-28 13:08:09,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-11-28 13:08:09,744 INFO L87 Difference]: Start difference. First operand 1780 states and 4650 transitions. Second operand 18 states. [2018-11-28 13:08:10,573 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2018-11-28 13:08:10,716 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2018-11-28 13:08:10,877 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2018-11-28 13:08:11,372 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-11-28 13:08:11,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:11,915 INFO L93 Difference]: Finished difference Result 2172 states and 5448 transitions. [2018-11-28 13:08:11,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-28 13:08:11,915 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 96 [2018-11-28 13:08:11,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:11,919 INFO L225 Difference]: With dead ends: 2172 [2018-11-28 13:08:11,919 INFO L226 Difference]: Without dead ends: 2172 [2018-11-28 13:08:11,920 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=337, Invalid=923, Unknown=0, NotChecked=0, Total=1260 [2018-11-28 13:08:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2018-11-28 13:08:11,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1942. [2018-11-28 13:08:11,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1942 states. [2018-11-28 13:08:11,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 4978 transitions. [2018-11-28 13:08:11,953 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 4978 transitions. Word has length 96 [2018-11-28 13:08:11,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:11,953 INFO L480 AbstractCegarLoop]: Abstraction has 1942 states and 4978 transitions. [2018-11-28 13:08:11,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-28 13:08:11,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 4978 transitions. [2018-11-28 13:08:11,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:11,956 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:11,957 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:11,958 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:11,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:11,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1707679114, now seen corresponding path program 2 times [2018-11-28 13:08:11,958 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:11,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:11,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:11,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:08:11,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:12,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:12,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-11-28 13:08:12,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-28 13:08:12,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-28 13:08:12,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2018-11-28 13:08:12,871 INFO L87 Difference]: Start difference. First operand 1942 states and 4978 transitions. Second operand 20 states. [2018-11-28 13:08:13,403 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-11-28 13:08:13,943 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-11-28 13:08:14,085 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-11-28 13:08:14,349 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2018-11-28 13:08:14,515 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2018-11-28 13:08:14,669 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-11-28 13:08:14,805 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-28 13:08:14,975 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-11-28 13:08:15,132 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:08:15,329 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:08:15,517 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-28 13:08:15,721 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-11-28 13:08:16,057 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-11-28 13:08:16,211 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-11-28 13:08:16,368 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:08:16,492 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-11-28 13:08:16,822 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2018-11-28 13:08:17,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:17,052 INFO L93 Difference]: Finished difference Result 2544 states and 6190 transitions. [2018-11-28 13:08:17,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-28 13:08:17,053 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 96 [2018-11-28 13:08:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:17,056 INFO L225 Difference]: With dead ends: 2544 [2018-11-28 13:08:17,057 INFO L226 Difference]: Without dead ends: 2544 [2018-11-28 13:08:17,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=632, Invalid=1624, Unknown=0, NotChecked=0, Total=2256 [2018-11-28 13:08:17,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2018-11-28 13:08:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 1915. [2018-11-28 13:08:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2018-11-28 13:08:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 4915 transitions. [2018-11-28 13:08:17,092 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 4915 transitions. Word has length 96 [2018-11-28 13:08:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:17,093 INFO L480 AbstractCegarLoop]: Abstraction has 1915 states and 4915 transitions. [2018-11-28 13:08:17,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-28 13:08:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 4915 transitions. [2018-11-28 13:08:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:17,096 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:17,096 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:17,096 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:17,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:17,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1355459034, now seen corresponding path program 3 times [2018-11-28 13:08:17,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:17,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:17,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:17,106 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:08:17,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:17,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:17,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:17,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-28 13:08:17,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-28 13:08:17,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-28 13:08:17,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-11-28 13:08:17,844 INFO L87 Difference]: Start difference. First operand 1915 states and 4915 transitions. Second operand 18 states. [2018-11-28 13:08:18,635 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2018-11-28 13:08:18,767 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-11-28 13:08:19,011 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-11-28 13:08:19,153 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-11-28 13:08:19,425 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-11-28 13:08:19,568 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:08:19,727 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-11-28 13:08:20,049 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2018-11-28 13:08:20,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:20,258 INFO L93 Difference]: Finished difference Result 2557 states and 6323 transitions. [2018-11-28 13:08:20,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-28 13:08:20,258 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 96 [2018-11-28 13:08:20,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:20,262 INFO L225 Difference]: With dead ends: 2557 [2018-11-28 13:08:20,262 INFO L226 Difference]: Without dead ends: 2557 [2018-11-28 13:08:20,262 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=359, Invalid=901, Unknown=0, NotChecked=0, Total=1260 [2018-11-28 13:08:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2018-11-28 13:08:20,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2152. [2018-11-28 13:08:20,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2152 states. [2018-11-28 13:08:20,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 5534 transitions. [2018-11-28 13:08:20,301 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 5534 transitions. Word has length 96 [2018-11-28 13:08:20,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:20,302 INFO L480 AbstractCegarLoop]: Abstraction has 2152 states and 5534 transitions. [2018-11-28 13:08:20,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-28 13:08:20,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 5534 transitions. [2018-11-28 13:08:20,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:20,306 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:20,306 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:20,306 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:20,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:20,307 INFO L82 PathProgramCache]: Analyzing trace with hash 449789656, now seen corresponding path program 4 times [2018-11-28 13:08:20,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:20,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:20,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:20,313 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:08:20,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:21,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:21,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:21,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:08:21,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:08:21,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:08:21,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:08:21,401 INFO L87 Difference]: Start difference. First operand 2152 states and 5534 transitions. Second operand 21 states. [2018-11-28 13:08:22,050 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:08:22,192 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-11-28 13:08:22,352 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-11-28 13:08:22,771 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-11-28 13:08:22,931 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-11-28 13:08:23,139 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-11-28 13:08:23,323 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-11-28 13:08:23,518 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2018-11-28 13:08:23,728 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-11-28 13:08:24,084 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-11-28 13:08:24,245 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:08:24,379 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-11-28 13:08:24,759 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:08:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:24,997 INFO L93 Difference]: Finished difference Result 3287 states and 7934 transitions. [2018-11-28 13:08:24,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-28 13:08:24,998 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:08:24,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:25,000 INFO L225 Difference]: With dead ends: 3287 [2018-11-28 13:08:25,001 INFO L226 Difference]: Without dead ends: 3287 [2018-11-28 13:08:25,001 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=486, Invalid=1320, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 13:08:25,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2018-11-28 13:08:25,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 2329. [2018-11-28 13:08:25,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2329 states. [2018-11-28 13:08:25,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 5985 transitions. [2018-11-28 13:08:25,028 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 5985 transitions. Word has length 96 [2018-11-28 13:08:25,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:25,029 INFO L480 AbstractCegarLoop]: Abstraction has 2329 states and 5985 transitions. [2018-11-28 13:08:25,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:08:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 5985 transitions. [2018-11-28 13:08:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:25,033 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:25,033 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:25,033 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:25,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:25,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1754005574, now seen corresponding path program 5 times [2018-11-28 13:08:25,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:25,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:25,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:25,039 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:08:25,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:25,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:25,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:25,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:08:25,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:08:25,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:08:25,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:08:25,983 INFO L87 Difference]: Start difference. First operand 2329 states and 5985 transitions. Second operand 21 states. [2018-11-28 13:08:26,612 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:08:26,754 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-11-28 13:08:26,909 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-11-28 13:08:27,126 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-11-28 13:08:27,299 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-28 13:08:27,643 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-11-28 13:08:27,847 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-11-28 13:08:28,023 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-11-28 13:08:28,221 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-11-28 13:08:28,434 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-11-28 13:08:28,804 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-11-28 13:08:28,963 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-11-28 13:08:29,135 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2018-11-28 13:08:29,289 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:08:29,433 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-11-28 13:08:29,678 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-11-28 13:08:29,991 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-11-28 13:08:30,138 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:08:30,480 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2018-11-28 13:08:30,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:30,602 INFO L93 Difference]: Finished difference Result 5310 states and 12783 transitions. [2018-11-28 13:08:30,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-28 13:08:30,602 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:08:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:30,609 INFO L225 Difference]: With dead ends: 5310 [2018-11-28 13:08:30,610 INFO L226 Difference]: Without dead ends: 5310 [2018-11-28 13:08:30,610 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=665, Invalid=1785, Unknown=0, NotChecked=0, Total=2450 [2018-11-28 13:08:30,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5310 states. [2018-11-28 13:08:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5310 to 2362. [2018-11-28 13:08:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2018-11-28 13:08:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 6084 transitions. [2018-11-28 13:08:30,649 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 6084 transitions. Word has length 96 [2018-11-28 13:08:30,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:30,649 INFO L480 AbstractCegarLoop]: Abstraction has 2362 states and 6084 transitions. [2018-11-28 13:08:30,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:08:30,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 6084 transitions. [2018-11-28 13:08:30,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:30,678 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:30,678 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:30,679 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:30,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:30,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1290945078, now seen corresponding path program 6 times [2018-11-28 13:08:30,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:30,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:30,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:30,688 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:08:30,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:31,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:31,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:08:31,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:08:31,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:08:31,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:08:31,698 INFO L87 Difference]: Start difference. First operand 2362 states and 6084 transitions. Second operand 21 states. [2018-11-28 13:08:32,353 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:08:32,493 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-11-28 13:08:32,647 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-11-28 13:08:32,880 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-11-28 13:08:33,057 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-28 13:08:33,239 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-11-28 13:08:33,446 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-11-28 13:08:33,775 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-11-28 13:08:34,008 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:08:34,232 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2018-11-28 13:08:34,440 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-11-28 13:08:34,815 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2018-11-28 13:08:34,977 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-11-28 13:08:35,166 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2018-11-28 13:08:35,323 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:08:35,483 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-11-28 13:08:35,612 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-11-28 13:08:35,807 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2018-11-28 13:08:35,952 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:08:36,313 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:08:36,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:36,434 INFO L93 Difference]: Finished difference Result 4637 states and 11344 transitions. [2018-11-28 13:08:36,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-28 13:08:36,434 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:08:36,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:36,440 INFO L225 Difference]: With dead ends: 4637 [2018-11-28 13:08:36,440 INFO L226 Difference]: Without dead ends: 4637 [2018-11-28 13:08:36,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=651, Invalid=1701, Unknown=0, NotChecked=0, Total=2352 [2018-11-28 13:08:36,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2018-11-28 13:08:36,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 2461. [2018-11-28 13:08:36,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2461 states. [2018-11-28 13:08:36,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 6381 transitions. [2018-11-28 13:08:36,475 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 6381 transitions. Word has length 96 [2018-11-28 13:08:36,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:36,475 INFO L480 AbstractCegarLoop]: Abstraction has 2461 states and 6381 transitions. [2018-11-28 13:08:36,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:08:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 6381 transitions. [2018-11-28 13:08:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:36,479 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:36,480 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:36,480 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:36,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:36,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1220162766, now seen corresponding path program 7 times [2018-11-28 13:08:36,480 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:36,480 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:36,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:36,485 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:08:36,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:37,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:37,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:08:37,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:08:37,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:08:37,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:08:37,444 INFO L87 Difference]: Start difference. First operand 2461 states and 6381 transitions. Second operand 21 states. [2018-11-28 13:08:38,098 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:08:38,360 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-11-28 13:08:38,511 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-11-28 13:08:38,677 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-11-28 13:08:38,875 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-11-28 13:08:39,058 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:08:39,249 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-11-28 13:08:39,461 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-11-28 13:08:39,867 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-28 13:08:40,016 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-11-28 13:08:40,182 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-11-28 13:08:40,392 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-11-28 13:08:40,653 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-11-28 13:08:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:40,898 INFO L93 Difference]: Finished difference Result 3589 states and 8624 transitions. [2018-11-28 13:08:40,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-28 13:08:40,898 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:08:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:40,902 INFO L225 Difference]: With dead ends: 3589 [2018-11-28 13:08:40,902 INFO L226 Difference]: Without dead ends: 3589 [2018-11-28 13:08:40,902 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=474, Invalid=1332, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 13:08:40,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2018-11-28 13:08:40,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 2488. [2018-11-28 13:08:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2018-11-28 13:08:40,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 6444 transitions. [2018-11-28 13:08:40,929 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 6444 transitions. Word has length 96 [2018-11-28 13:08:40,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:40,930 INFO L480 AbstractCegarLoop]: Abstraction has 2488 states and 6444 transitions. [2018-11-28 13:08:40,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:08:40,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 6444 transitions. [2018-11-28 13:08:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:40,932 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:40,932 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:40,933 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:40,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:40,933 INFO L82 PathProgramCache]: Analyzing trace with hash -410312364, now seen corresponding path program 8 times [2018-11-28 13:08:40,933 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:40,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:40,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:40,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:08:40,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:41,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:41,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:08:41,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:08:41,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:08:41,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:08:41,877 INFO L87 Difference]: Start difference. First operand 2488 states and 6444 transitions. Second operand 21 states. [2018-11-28 13:08:42,536 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:08:42,783 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-11-28 13:08:42,959 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:08:43,134 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-11-28 13:08:43,322 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-11-28 13:08:43,510 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-11-28 13:08:43,726 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-11-28 13:08:44,047 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-28 13:08:44,195 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-11-28 13:08:44,341 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-11-28 13:08:44,537 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-11-28 13:08:44,799 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-11-28 13:08:45,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:45,046 INFO L93 Difference]: Finished difference Result 3752 states and 8953 transitions. [2018-11-28 13:08:45,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:08:45,046 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:08:45,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:45,049 INFO L225 Difference]: With dead ends: 3752 [2018-11-28 13:08:45,049 INFO L226 Difference]: Without dead ends: 3752 [2018-11-28 13:08:45,050 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=444, Invalid=1278, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:08:45,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2018-11-28 13:08:45,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 2490. [2018-11-28 13:08:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2490 states. [2018-11-28 13:08:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 6449 transitions. [2018-11-28 13:08:45,093 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 6449 transitions. Word has length 96 [2018-11-28 13:08:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:45,094 INFO L480 AbstractCegarLoop]: Abstraction has 2490 states and 6449 transitions. [2018-11-28 13:08:45,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:08:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 6449 transitions. [2018-11-28 13:08:45,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:45,097 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:45,098 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:45,098 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:45,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:45,098 INFO L82 PathProgramCache]: Analyzing trace with hash -487269194, now seen corresponding path program 9 times [2018-11-28 13:08:45,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:45,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:45,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:45,105 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:08:45,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:46,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:46,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:08:46,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:08:46,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:08:46,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:08:46,073 INFO L87 Difference]: Start difference. First operand 2490 states and 6449 transitions. Second operand 21 states. [2018-11-28 13:08:46,726 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:08:46,995 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-11-28 13:08:47,169 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-11-28 13:08:47,367 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:08:47,572 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:08:47,766 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:08:47,985 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-11-28 13:08:48,319 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-28 13:08:48,465 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-11-28 13:08:48,613 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-11-28 13:08:49,062 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-11-28 13:08:49,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:49,282 INFO L93 Difference]: Finished difference Result 3457 states and 8359 transitions. [2018-11-28 13:08:49,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:08:49,282 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:08:49,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:49,285 INFO L225 Difference]: With dead ends: 3457 [2018-11-28 13:08:49,286 INFO L226 Difference]: Without dead ends: 3457 [2018-11-28 13:08:49,286 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=445, Invalid=1277, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:08:49,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2018-11-28 13:08:49,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 2496. [2018-11-28 13:08:49,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2018-11-28 13:08:49,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 6464 transitions. [2018-11-28 13:08:49,338 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 6464 transitions. Word has length 96 [2018-11-28 13:08:49,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:49,338 INFO L480 AbstractCegarLoop]: Abstraction has 2496 states and 6464 transitions. [2018-11-28 13:08:49,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:08:49,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 6464 transitions. [2018-11-28 13:08:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:49,342 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:49,342 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:49,342 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:49,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:49,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1248556006, now seen corresponding path program 10 times [2018-11-28 13:08:49,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:49,343 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:49,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:49,348 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:08:49,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:50,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:50,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:50,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:08:50,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:08:50,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:08:50,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:08:50,358 INFO L87 Difference]: Start difference. First operand 2496 states and 6464 transitions. Second operand 21 states. [2018-11-28 13:08:51,026 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:08:51,230 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-11-28 13:08:51,397 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-11-28 13:08:51,592 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2018-11-28 13:08:51,979 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-11-28 13:08:52,159 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2018-11-28 13:08:52,354 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-11-28 13:08:52,565 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-11-28 13:08:52,968 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-11-28 13:08:53,145 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-11-28 13:08:53,300 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2018-11-28 13:08:53,530 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-11-28 13:08:53,718 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-11-28 13:08:53,986 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-11-28 13:08:53,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:53,997 INFO L93 Difference]: Finished difference Result 5854 states and 14349 transitions. [2018-11-28 13:08:53,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:08:53,997 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:08:53,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:54,000 INFO L225 Difference]: With dead ends: 5854 [2018-11-28 13:08:54,000 INFO L226 Difference]: Without dead ends: 5854 [2018-11-28 13:08:54,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=466, Invalid=1256, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:08:54,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2018-11-28 13:08:54,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 2540. [2018-11-28 13:08:54,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2018-11-28 13:08:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6596 transitions. [2018-11-28 13:08:54,029 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6596 transitions. Word has length 96 [2018-11-28 13:08:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:54,029 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6596 transitions. [2018-11-28 13:08:54,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:08:54,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6596 transitions. [2018-11-28 13:08:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:54,032 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:54,032 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:54,032 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:54,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:54,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1460638, now seen corresponding path program 11 times [2018-11-28 13:08:54,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:54,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:54,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:54,038 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:08:54,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:08:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:08:54,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:08:54,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:08:54,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:08:54,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:08:54,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:08:54,866 INFO L87 Difference]: Start difference. First operand 2540 states and 6596 transitions. Second operand 21 states. [2018-11-28 13:08:55,537 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:08:55,755 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-11-28 13:08:55,927 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-11-28 13:08:56,126 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2018-11-28 13:08:56,303 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2018-11-28 13:08:56,519 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2018-11-28 13:08:56,941 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-11-28 13:08:57,139 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-11-28 13:08:57,358 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-11-28 13:08:57,804 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2018-11-28 13:08:57,974 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-11-28 13:08:58,166 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2018-11-28 13:08:58,335 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-11-28 13:08:58,499 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2018-11-28 13:08:58,680 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2018-11-28 13:08:58,882 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2018-11-28 13:08:59,043 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-11-28 13:08:59,193 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:08:59,334 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2018-11-28 13:08:59,473 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2018-11-28 13:08:59,598 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-11-28 13:08:59,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:08:59,608 INFO L93 Difference]: Finished difference Result 6960 states and 17185 transitions. [2018-11-28 13:08:59,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-28 13:08:59,608 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:08:59,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:08:59,611 INFO L225 Difference]: With dead ends: 6960 [2018-11-28 13:08:59,611 INFO L226 Difference]: Without dead ends: 6960 [2018-11-28 13:08:59,612 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2018-11-28 13:08:59,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2018-11-28 13:08:59,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 2507. [2018-11-28 13:08:59,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2018-11-28 13:08:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 6497 transitions. [2018-11-28 13:08:59,642 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 6497 transitions. Word has length 96 [2018-11-28 13:08:59,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:08:59,643 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 6497 transitions. [2018-11-28 13:08:59,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:08:59,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 6497 transitions. [2018-11-28 13:08:59,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:08:59,646 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:08:59,646 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:08:59,646 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:08:59,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:08:59,647 INFO L82 PathProgramCache]: Analyzing trace with hash -803922638, now seen corresponding path program 12 times [2018-11-28 13:08:59,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:08:59,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:08:59,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:59,652 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:08:59,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:08:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:00,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:00,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:00,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:00,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:00,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:00,591 INFO L87 Difference]: Start difference. First operand 2507 states and 6497 transitions. Second operand 21 states. [2018-11-28 13:09:01,263 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:09:01,463 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-11-28 13:09:01,744 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:09:01,931 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-11-28 13:09:02,120 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-11-28 13:09:02,310 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-11-28 13:09:02,526 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-11-28 13:09:02,901 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-11-28 13:09:03,091 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-11-28 13:09:03,257 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2018-11-28 13:09:03,487 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-11-28 13:09:03,783 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2018-11-28 13:09:04,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:04,067 INFO L93 Difference]: Finished difference Result 4983 states and 12154 transitions. [2018-11-28 13:09:04,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:09:04,067 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:04,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:04,070 INFO L225 Difference]: With dead ends: 4983 [2018-11-28 13:09:04,070 INFO L226 Difference]: Without dead ends: 4983 [2018-11-28 13:09:04,070 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=455, Invalid=1267, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:09:04,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2018-11-28 13:09:04,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 2509. [2018-11-28 13:09:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2509 states. [2018-11-28 13:09:04,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 6502 transitions. [2018-11-28 13:09:04,103 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 6502 transitions. Word has length 96 [2018-11-28 13:09:04,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:04,103 INFO L480 AbstractCegarLoop]: Abstraction has 2509 states and 6502 transitions. [2018-11-28 13:09:04,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:04,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 6502 transitions. [2018-11-28 13:09:04,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:04,105 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:04,105 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:04,105 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:04,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:04,106 INFO L82 PathProgramCache]: Analyzing trace with hash -880879468, now seen corresponding path program 13 times [2018-11-28 13:09:04,106 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:04,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:04,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:04,111 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:04,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:05,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:05,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:05,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:05,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:05,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:05,125 INFO L87 Difference]: Start difference. First operand 2509 states and 6502 transitions. Second operand 21 states. [2018-11-28 13:09:05,778 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:09:05,977 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-11-28 13:09:06,315 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-11-28 13:09:06,519 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:09:06,722 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:09:06,914 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:09:07,135 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-11-28 13:09:07,501 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2018-11-28 13:09:07,677 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-11-28 13:09:07,840 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-11-28 13:09:07,978 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2018-11-28 13:09:08,349 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-11-28 13:09:08,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:08,606 INFO L93 Difference]: Finished difference Result 4880 states and 11957 transitions. [2018-11-28 13:09:08,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:09:08,606 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:08,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:08,609 INFO L225 Difference]: With dead ends: 4880 [2018-11-28 13:09:08,609 INFO L226 Difference]: Without dead ends: 4880 [2018-11-28 13:09:08,610 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=456, Invalid=1266, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:09:08,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2018-11-28 13:09:08,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 2507. [2018-11-28 13:09:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2018-11-28 13:09:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 6497 transitions. [2018-11-28 13:09:08,634 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 6497 transitions. Word has length 96 [2018-11-28 13:09:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:08,634 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 6497 transitions. [2018-11-28 13:09:08,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:08,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 6497 transitions. [2018-11-28 13:09:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:08,637 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:08,637 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:08,637 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:08,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:08,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1205381460, now seen corresponding path program 14 times [2018-11-28 13:09:08,637 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:08,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:08,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:08,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:09:08,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:09,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:09,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:09,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:09,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:09,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:09,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:09,607 INFO L87 Difference]: Start difference. First operand 2507 states and 6497 transitions. Second operand 21 states. [2018-11-28 13:09:10,288 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:09:10,503 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-11-28 13:09:10,681 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-11-28 13:09:10,897 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:09:11,099 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:09:11,324 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2018-11-28 13:09:11,778 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-11-28 13:09:11,967 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-11-28 13:09:12,184 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-11-28 13:09:12,638 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-11-28 13:09:12,841 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-11-28 13:09:13,031 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2018-11-28 13:09:13,234 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-11-28 13:09:13,395 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-11-28 13:09:13,572 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2018-11-28 13:09:13,773 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-11-28 13:09:13,966 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-11-28 13:09:14,229 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2018-11-28 13:09:14,363 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-11-28 13:09:14,507 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2018-11-28 13:09:14,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:14,523 INFO L93 Difference]: Finished difference Result 5593 states and 13805 transitions. [2018-11-28 13:09:14,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-28 13:09:14,524 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:14,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:14,527 INFO L225 Difference]: With dead ends: 5593 [2018-11-28 13:09:14,527 INFO L226 Difference]: Without dead ends: 5593 [2018-11-28 13:09:14,528 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=605, Invalid=1557, Unknown=0, NotChecked=0, Total=2162 [2018-11-28 13:09:14,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2018-11-28 13:09:14,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 2540. [2018-11-28 13:09:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2018-11-28 13:09:14,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6596 transitions. [2018-11-28 13:09:14,554 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6596 transitions. Word has length 96 [2018-11-28 13:09:14,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:14,554 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6596 transitions. [2018-11-28 13:09:14,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:14,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6596 transitions. [2018-11-28 13:09:14,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:14,557 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:14,557 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:14,558 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:14,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:14,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1693361800, now seen corresponding path program 15 times [2018-11-28 13:09:14,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:14,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:14,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:14,563 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:14,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:15,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:15,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:15,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:15,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:15,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:15,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:15,489 INFO L87 Difference]: Start difference. First operand 2540 states and 6596 transitions. Second operand 21 states. [2018-11-28 13:09:16,125 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:09:16,317 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-11-28 13:09:16,491 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-11-28 13:09:16,693 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:09:17,028 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2018-11-28 13:09:17,231 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2018-11-28 13:09:17,426 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2018-11-28 13:09:17,653 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2018-11-28 13:09:18,036 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-11-28 13:09:18,229 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2018-11-28 13:09:18,394 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-11-28 13:09:18,624 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-11-28 13:09:18,809 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-11-28 13:09:19,074 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-11-28 13:09:19,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:19,084 INFO L93 Difference]: Finished difference Result 4425 states and 10876 transitions. [2018-11-28 13:09:19,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:09:19,084 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:19,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:19,087 INFO L225 Difference]: With dead ends: 4425 [2018-11-28 13:09:19,087 INFO L226 Difference]: Without dead ends: 4425 [2018-11-28 13:09:19,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:09:19,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4425 states. [2018-11-28 13:09:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4425 to 2540. [2018-11-28 13:09:19,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2018-11-28 13:09:19,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6596 transitions. [2018-11-28 13:09:19,110 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6596 transitions. Word has length 96 [2018-11-28 13:09:19,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:19,110 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6596 transitions. [2018-11-28 13:09:19,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:19,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6596 transitions. [2018-11-28 13:09:19,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:19,112 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:19,112 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:19,112 INFO L423 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:19,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:19,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1736009256, now seen corresponding path program 16 times [2018-11-28 13:09:19,113 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:19,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:19,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:19,116 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:19,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:19,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:19,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:19,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:19,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:19,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:19,968 INFO L87 Difference]: Start difference. First operand 2540 states and 6596 transitions. Second operand 21 states. [2018-11-28 13:09:20,733 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-11-28 13:09:20,887 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-11-28 13:09:21,051 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-11-28 13:09:21,270 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-11-28 13:09:21,455 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:09:21,644 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-11-28 13:09:21,852 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-11-28 13:09:22,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:22,932 INFO L93 Difference]: Finished difference Result 3269 states and 8034 transitions. [2018-11-28 13:09:22,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-28 13:09:22,932 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:22,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:22,934 INFO L225 Difference]: With dead ends: 3269 [2018-11-28 13:09:22,934 INFO L226 Difference]: Without dead ends: 3269 [2018-11-28 13:09:22,935 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=464, Invalid=1342, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 13:09:22,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2018-11-28 13:09:22,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 2480. [2018-11-28 13:09:22,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2480 states. [2018-11-28 13:09:22,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 6455 transitions. [2018-11-28 13:09:22,956 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 6455 transitions. Word has length 96 [2018-11-28 13:09:22,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:22,956 INFO L480 AbstractCegarLoop]: Abstraction has 2480 states and 6455 transitions. [2018-11-28 13:09:22,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:22,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 6455 transitions. [2018-11-28 13:09:22,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:22,958 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:22,958 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:22,959 INFO L423 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:22,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:22,959 INFO L82 PathProgramCache]: Analyzing trace with hash -926158854, now seen corresponding path program 17 times [2018-11-28 13:09:22,959 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:22,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:22,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:22,964 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:22,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:23,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:23,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:23,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:23,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:23,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:23,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:23,929 INFO L87 Difference]: Start difference. First operand 2480 states and 6455 transitions. Second operand 21 states. [2018-11-28 13:09:24,766 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-11-28 13:09:24,964 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:09:25,147 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-11-28 13:09:25,345 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-11-28 13:09:25,534 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-11-28 13:09:25,749 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-11-28 13:09:26,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:26,909 INFO L93 Difference]: Finished difference Result 3810 states and 9142 transitions. [2018-11-28 13:09:26,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-28 13:09:26,909 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:26,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:26,911 INFO L225 Difference]: With dead ends: 3810 [2018-11-28 13:09:26,912 INFO L226 Difference]: Without dead ends: 3810 [2018-11-28 13:09:26,912 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=433, Invalid=1289, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:09:26,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2018-11-28 13:09:26,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 2482. [2018-11-28 13:09:26,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2482 states. [2018-11-28 13:09:26,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 6460 transitions. [2018-11-28 13:09:26,934 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 6460 transitions. Word has length 96 [2018-11-28 13:09:26,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:26,934 INFO L480 AbstractCegarLoop]: Abstraction has 2482 states and 6460 transitions. [2018-11-28 13:09:26,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 6460 transitions. [2018-11-28 13:09:26,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:26,936 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:26,936 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:26,936 INFO L423 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:26,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:26,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1003115684, now seen corresponding path program 18 times [2018-11-28 13:09:26,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:26,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:26,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:26,940 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:26,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:27,837 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:27,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:27,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:27,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:27,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:27,838 INFO L87 Difference]: Start difference. First operand 2482 states and 6460 transitions. Second operand 21 states. [2018-11-28 13:09:28,683 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-11-28 13:09:28,881 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-11-28 13:09:29,075 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-11-28 13:09:29,281 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-11-28 13:09:29,468 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-11-28 13:09:29,690 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2018-11-28 13:09:30,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:30,854 INFO L93 Difference]: Finished difference Result 3515 states and 8548 transitions. [2018-11-28 13:09:30,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-28 13:09:30,854 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:30,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:30,858 INFO L225 Difference]: With dead ends: 3515 [2018-11-28 13:09:30,858 INFO L226 Difference]: Without dead ends: 3515 [2018-11-28 13:09:30,858 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=434, Invalid=1288, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:09:30,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2018-11-28 13:09:30,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 2474. [2018-11-28 13:09:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2474 states. [2018-11-28 13:09:30,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 6440 transitions. [2018-11-28 13:09:30,880 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 6440 transitions. Word has length 96 [2018-11-28 13:09:30,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:30,881 INFO L480 AbstractCegarLoop]: Abstraction has 2474 states and 6440 transitions. [2018-11-28 13:09:30,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:30,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 6440 transitions. [2018-11-28 13:09:30,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:30,882 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:30,882 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:30,883 INFO L423 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:30,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:30,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1189275176, now seen corresponding path program 19 times [2018-11-28 13:09:30,883 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:30,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:30,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:30,886 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:30,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:31,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:31,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:31,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:31,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:31,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:31,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:31,875 INFO L87 Difference]: Start difference. First operand 2474 states and 6440 transitions. Second operand 21 states. [2018-11-28 13:09:32,720 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-11-28 13:09:32,897 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2018-11-28 13:09:33,071 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-11-28 13:09:33,260 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-11-28 13:09:33,448 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-11-28 13:09:33,661 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-11-28 13:09:34,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:34,795 INFO L93 Difference]: Finished difference Result 3489 states and 8492 transitions. [2018-11-28 13:09:34,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-28 13:09:34,796 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:34,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:34,798 INFO L225 Difference]: With dead ends: 3489 [2018-11-28 13:09:34,798 INFO L226 Difference]: Without dead ends: 3489 [2018-11-28 13:09:34,798 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=433, Invalid=1289, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:09:34,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2018-11-28 13:09:34,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 2482. [2018-11-28 13:09:34,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2482 states. [2018-11-28 13:09:34,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 6460 transitions. [2018-11-28 13:09:34,820 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 6460 transitions. Word has length 96 [2018-11-28 13:09:34,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:34,820 INFO L480 AbstractCegarLoop]: Abstraction has 2482 states and 6460 transitions. [2018-11-28 13:09:34,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 6460 transitions. [2018-11-28 13:09:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:34,821 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:34,821 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:34,822 INFO L423 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:34,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:34,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1266232006, now seen corresponding path program 20 times [2018-11-28 13:09:34,822 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:34,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:34,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:34,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:09:34,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:35,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:35,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:35,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:35,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:35,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:35,702 INFO L87 Difference]: Start difference. First operand 2482 states and 6460 transitions. Second operand 21 states. [2018-11-28 13:09:36,612 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-11-28 13:09:36,798 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2018-11-28 13:09:37,004 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2018-11-28 13:09:37,217 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-28 13:09:37,410 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-28 13:09:37,643 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-11-28 13:09:38,142 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-11-28 13:09:38,269 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-11-28 13:09:38,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:38,903 INFO L93 Difference]: Finished difference Result 3707 states and 8945 transitions. [2018-11-28 13:09:38,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-28 13:09:38,903 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:38,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:38,906 INFO L225 Difference]: With dead ends: 3707 [2018-11-28 13:09:38,906 INFO L226 Difference]: Without dead ends: 3707 [2018-11-28 13:09:38,906 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=434, Invalid=1288, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:09:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2018-11-28 13:09:38,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 2480. [2018-11-28 13:09:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2480 states. [2018-11-28 13:09:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 6455 transitions. [2018-11-28 13:09:38,934 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 6455 transitions. Word has length 96 [2018-11-28 13:09:38,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:38,934 INFO L480 AbstractCegarLoop]: Abstraction has 2480 states and 6455 transitions. [2018-11-28 13:09:38,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 6455 transitions. [2018-11-28 13:09:38,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:38,937 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:38,937 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:38,937 INFO L423 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:38,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:38,937 INFO L82 PathProgramCache]: Analyzing trace with hash -683357736, now seen corresponding path program 21 times [2018-11-28 13:09:38,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:38,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:38,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:38,941 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:38,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:39,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:39,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:39,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:39,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:39,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:39,879 INFO L87 Difference]: Start difference. First operand 2480 states and 6455 transitions. Second operand 21 states. [2018-11-28 13:09:40,736 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-11-28 13:09:40,914 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-11-28 13:09:41,093 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-11-28 13:09:41,310 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:09:41,541 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2018-11-28 13:09:41,783 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:09:42,028 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-11-28 13:09:42,444 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-11-28 13:09:42,571 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-11-28 13:09:42,970 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2018-11-28 13:09:43,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:43,171 INFO L93 Difference]: Finished difference Result 3192 states and 7893 transitions. [2018-11-28 13:09:43,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-28 13:09:43,171 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:43,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:43,174 INFO L225 Difference]: With dead ends: 3192 [2018-11-28 13:09:43,174 INFO L226 Difference]: Without dead ends: 3192 [2018-11-28 13:09:43,175 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=466, Invalid=1340, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 13:09:43,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2018-11-28 13:09:43,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 2498. [2018-11-28 13:09:43,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2498 states. [2018-11-28 13:09:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 6500 transitions. [2018-11-28 13:09:43,199 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 6500 transitions. Word has length 96 [2018-11-28 13:09:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:43,200 INFO L480 AbstractCegarLoop]: Abstraction has 2498 states and 6500 transitions. [2018-11-28 13:09:43,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:43,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 6500 transitions. [2018-11-28 13:09:43,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:43,202 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:43,203 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:43,203 INFO L423 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:43,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:43,203 INFO L82 PathProgramCache]: Analyzing trace with hash 871020286, now seen corresponding path program 22 times [2018-11-28 13:09:43,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:43,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:43,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:43,208 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:43,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:44,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:44,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:44,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:44,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:44,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:44,210 INFO L87 Difference]: Start difference. First operand 2498 states and 6500 transitions. Second operand 21 states. [2018-11-28 13:09:44,938 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:09:45,107 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-11-28 13:09:45,281 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:09:45,479 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2018-11-28 13:09:45,819 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-11-28 13:09:46,018 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-11-28 13:09:46,230 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-28 13:09:46,470 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-11-28 13:09:46,907 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:09:47,109 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:09:47,281 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-11-28 13:09:47,513 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-11-28 13:09:47,702 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-11-28 13:09:47,994 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2018-11-28 13:09:48,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:48,004 INFO L93 Difference]: Finished difference Result 4235 states and 10394 transitions. [2018-11-28 13:09:48,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:09:48,005 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:48,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:48,008 INFO L225 Difference]: With dead ends: 4235 [2018-11-28 13:09:48,008 INFO L226 Difference]: Without dead ends: 4235 [2018-11-28 13:09:48,008 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=466, Invalid=1256, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:09:48,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4235 states. [2018-11-28 13:09:48,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4235 to 2498. [2018-11-28 13:09:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2498 states. [2018-11-28 13:09:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 6500 transitions. [2018-11-28 13:09:48,033 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 6500 transitions. Word has length 96 [2018-11-28 13:09:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:48,034 INFO L480 AbstractCegarLoop]: Abstraction has 2498 states and 6500 transitions. [2018-11-28 13:09:48,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 6500 transitions. [2018-11-28 13:09:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:48,036 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:48,036 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:48,037 INFO L423 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:48,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:48,037 INFO L82 PathProgramCache]: Analyzing trace with hash -378996358, now seen corresponding path program 23 times [2018-11-28 13:09:48,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:48,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:48,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:48,043 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:48,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:49,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:49,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:49,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:49,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:49,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:49,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:49,030 INFO L87 Difference]: Start difference. First operand 2498 states and 6500 transitions. Second operand 21 states. [2018-11-28 13:09:49,802 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:09:49,980 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-11-28 13:09:50,163 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:09:50,368 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2018-11-28 13:09:50,560 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2018-11-28 13:09:50,794 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2018-11-28 13:09:51,201 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2018-11-28 13:09:51,411 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-11-28 13:09:51,665 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2018-11-28 13:09:52,159 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2018-11-28 13:09:52,354 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:09:52,577 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2018-11-28 13:09:52,776 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:09:52,973 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-11-28 13:09:53,146 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-11-28 13:09:53,360 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-11-28 13:09:53,535 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-11-28 13:09:53,686 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:09:53,952 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2018-11-28 13:09:54,086 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2018-11-28 13:09:54,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:54,095 INFO L93 Difference]: Finished difference Result 5297 states and 13147 transitions. [2018-11-28 13:09:54,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-28 13:09:54,095 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:54,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:54,098 INFO L225 Difference]: With dead ends: 5297 [2018-11-28 13:09:54,098 INFO L226 Difference]: Without dead ends: 5297 [2018-11-28 13:09:54,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2018-11-28 13:09:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2018-11-28 13:09:54,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 2465. [2018-11-28 13:09:54,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2465 states. [2018-11-28 13:09:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 6401 transitions. [2018-11-28 13:09:54,128 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 6401 transitions. Word has length 96 [2018-11-28 13:09:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:54,128 INFO L480 AbstractCegarLoop]: Abstraction has 2465 states and 6401 transitions. [2018-11-28 13:09:54,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 6401 transitions. [2018-11-28 13:09:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:54,131 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:54,131 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:54,131 INFO L423 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:54,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:54,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1181458358, now seen corresponding path program 24 times [2018-11-28 13:09:54,131 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:54,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:54,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:54,135 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:54,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:55,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:09:55,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:09:55,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:09:55,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:09:55,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:09:55,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:09:55,150 INFO L87 Difference]: Start difference. First operand 2465 states and 6401 transitions. Second operand 21 states. [2018-11-28 13:09:55,913 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:09:56,101 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-11-28 13:09:56,444 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-11-28 13:09:56,637 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2018-11-28 13:09:56,842 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-11-28 13:09:57,049 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-28 13:09:57,286 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-11-28 13:09:57,731 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-11-28 13:09:57,932 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-11-28 13:09:58,115 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:09:58,371 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-11-28 13:09:58,705 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:09:59,000 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2018-11-28 13:09:59,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:09:59,020 INFO L93 Difference]: Finished difference Result 4435 states and 10826 transitions. [2018-11-28 13:09:59,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:09:59,020 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:09:59,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:09:59,023 INFO L225 Difference]: With dead ends: 4435 [2018-11-28 13:09:59,023 INFO L226 Difference]: Without dead ends: 4435 [2018-11-28 13:09:59,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=455, Invalid=1267, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:09:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2018-11-28 13:09:59,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 2467. [2018-11-28 13:09:59,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2018-11-28 13:09:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 6406 transitions. [2018-11-28 13:09:59,054 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 6406 transitions. Word has length 96 [2018-11-28 13:09:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:09:59,054 INFO L480 AbstractCegarLoop]: Abstraction has 2467 states and 6406 transitions. [2018-11-28 13:09:59,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:09:59,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 6406 transitions. [2018-11-28 13:09:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:09:59,057 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:59,057 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:59,057 INFO L423 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:59,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:59,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1258415188, now seen corresponding path program 25 times [2018-11-28 13:09:59,057 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:59,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:59,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:59,061 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:09:59,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:00,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:00,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:10:00,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:10:00,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:10:00,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:10:00,035 INFO L87 Difference]: Start difference. First operand 2467 states and 6406 transitions. Second operand 21 states. [2018-11-28 13:10:00,799 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:10:00,982 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-11-28 13:10:01,299 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2018-11-28 13:10:01,501 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-11-28 13:10:01,714 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-11-28 13:10:01,917 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-11-28 13:10:02,157 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2018-11-28 13:10:02,616 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-28 13:10:02,806 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:10:02,998 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-11-28 13:10:03,152 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2018-11-28 13:10:03,558 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2018-11-28 13:10:03,835 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-11-28 13:10:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:03,848 INFO L93 Difference]: Finished difference Result 4332 states and 10629 transitions. [2018-11-28 13:10:03,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:10:03,848 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:10:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:03,850 INFO L225 Difference]: With dead ends: 4332 [2018-11-28 13:10:03,850 INFO L226 Difference]: Without dead ends: 4332 [2018-11-28 13:10:03,851 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=456, Invalid=1266, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:10:03,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2018-11-28 13:10:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 2465. [2018-11-28 13:10:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2465 states. [2018-11-28 13:10:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 6401 transitions. [2018-11-28 13:10:03,878 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 6401 transitions. Word has length 96 [2018-11-28 13:10:03,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:03,878 INFO L480 AbstractCegarLoop]: Abstraction has 2465 states and 6401 transitions. [2018-11-28 13:10:03,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:10:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 6401 transitions. [2018-11-28 13:10:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:10:03,880 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:03,880 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:03,880 INFO L423 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:03,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:03,880 INFO L82 PathProgramCache]: Analyzing trace with hash 827845740, now seen corresponding path program 26 times [2018-11-28 13:10:03,881 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:03,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:03,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:03,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:03,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:04,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:04,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:04,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:10:04,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:10:04,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:10:04,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:10:04,841 INFO L87 Difference]: Start difference. First operand 2465 states and 6401 transitions. Second operand 21 states. [2018-11-28 13:10:05,456 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-11-28 13:10:05,645 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:10:05,836 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-11-28 13:10:06,045 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-11-28 13:10:06,269 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:10:06,469 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:10:06,726 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:10:07,207 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-11-28 13:10:07,418 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-11-28 13:10:07,661 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2018-11-28 13:10:08,195 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-11-28 13:10:08,431 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2018-11-28 13:10:08,648 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-11-28 13:10:08,880 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2018-11-28 13:10:09,074 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-28 13:10:09,276 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2018-11-28 13:10:09,506 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2018-11-28 13:10:09,729 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2018-11-28 13:10:09,889 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-11-28 13:10:10,034 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-11-28 13:10:10,207 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:10:10,376 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2018-11-28 13:10:10,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:10,393 INFO L93 Difference]: Finished difference Result 6306 states and 15694 transitions. [2018-11-28 13:10:10,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-28 13:10:10,393 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:10:10,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:10,397 INFO L225 Difference]: With dead ends: 6306 [2018-11-28 13:10:10,397 INFO L226 Difference]: Without dead ends: 6306 [2018-11-28 13:10:10,397 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=605, Invalid=1557, Unknown=0, NotChecked=0, Total=2162 [2018-11-28 13:10:10,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2018-11-28 13:10:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 2476. [2018-11-28 13:10:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2018-11-28 13:10:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 6434 transitions. [2018-11-28 13:10:10,430 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 6434 transitions. Word has length 96 [2018-11-28 13:10:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:10,430 INFO L480 AbstractCegarLoop]: Abstraction has 2476 states and 6434 transitions. [2018-11-28 13:10:10,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:10:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 6434 transitions. [2018-11-28 13:10:10,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:10:10,432 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:10,432 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:10,432 INFO L423 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:10,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:10,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1315826080, now seen corresponding path program 27 times [2018-11-28 13:10:10,433 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:10,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:10,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:10,437 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:10:10,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:11,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:11,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:10:11,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:10:11,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:10:11,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:10:11,586 INFO L87 Difference]: Start difference. First operand 2476 states and 6434 transitions. Second operand 21 states. [2018-11-28 13:10:12,210 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-11-28 13:10:12,400 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:10:12,613 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-11-28 13:10:12,847 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-11-28 13:10:13,096 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:10:13,520 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-11-28 13:10:13,752 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-28 13:10:13,966 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-28 13:10:14,217 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-11-28 13:10:14,714 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-11-28 13:10:14,930 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-11-28 13:10:15,119 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-28 13:10:15,381 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2018-11-28 13:10:15,589 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2018-11-28 13:10:15,747 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-11-28 13:10:15,904 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-28 13:10:15,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:15,917 INFO L93 Difference]: Finished difference Result 5188 states and 12863 transitions. [2018-11-28 13:10:15,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:10:15,917 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:10:15,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:15,921 INFO L225 Difference]: With dead ends: 5188 [2018-11-28 13:10:15,921 INFO L226 Difference]: Without dead ends: 5188 [2018-11-28 13:10:15,922 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:10:15,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5188 states. [2018-11-28 13:10:15,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5188 to 2454. [2018-11-28 13:10:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2454 states. [2018-11-28 13:10:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2454 states to 2454 states and 6368 transitions. [2018-11-28 13:10:15,953 INFO L78 Accepts]: Start accepts. Automaton has 2454 states and 6368 transitions. Word has length 96 [2018-11-28 13:10:15,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:15,953 INFO L480 AbstractCegarLoop]: Abstraction has 2454 states and 6368 transitions. [2018-11-28 13:10:15,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:10:15,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2454 states and 6368 transitions. [2018-11-28 13:10:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:10:15,956 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:15,956 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:15,956 INFO L423 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:15,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:15,957 INFO L82 PathProgramCache]: Analyzing trace with hash -506291782, now seen corresponding path program 28 times [2018-11-28 13:10:15,957 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:15,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:15,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:15,961 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:10:15,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:16,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:16,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:16,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:10:16,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:10:16,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:10:16,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:10:16,978 INFO L87 Difference]: Start difference. First operand 2454 states and 6368 transitions. Second operand 21 states. [2018-11-28 13:10:17,573 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-11-28 13:10:17,752 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:10:18,008 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-11-28 13:10:18,205 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-11-28 13:10:18,416 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2018-11-28 13:10:18,652 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-11-28 13:10:18,879 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-28 13:10:19,137 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-11-28 13:10:19,522 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-28 13:10:19,692 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-11-28 13:10:19,844 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-11-28 13:10:20,062 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-11-28 13:10:20,361 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-11-28 13:10:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:20,645 INFO L93 Difference]: Finished difference Result 3450 states and 8352 transitions. [2018-11-28 13:10:20,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:10:20,645 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:10:20,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:20,648 INFO L225 Difference]: With dead ends: 3450 [2018-11-28 13:10:20,648 INFO L226 Difference]: Without dead ends: 3450 [2018-11-28 13:10:20,648 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=444, Invalid=1278, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:10:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2018-11-28 13:10:20,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 2448. [2018-11-28 13:10:20,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2448 states. [2018-11-28 13:10:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 6353 transitions. [2018-11-28 13:10:20,682 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 6353 transitions. Word has length 96 [2018-11-28 13:10:20,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:20,682 INFO L480 AbstractCegarLoop]: Abstraction has 2448 states and 6353 transitions. [2018-11-28 13:10:20,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:10:20,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 6353 transitions. [2018-11-28 13:10:20,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:10:20,684 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:20,684 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:20,685 INFO L423 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:20,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:20,685 INFO L82 PathProgramCache]: Analyzing trace with hash -583248612, now seen corresponding path program 29 times [2018-11-28 13:10:20,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:20,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:20,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:20,689 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:10:20,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:21,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:21,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:21,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:10:21,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:10:21,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:10:21,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:10:21,612 INFO L87 Difference]: Start difference. First operand 2448 states and 6353 transitions. Second operand 21 states. [2018-11-28 13:10:22,392 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:10:22,668 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-11-28 13:10:22,883 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2018-11-28 13:10:23,118 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2018-11-28 13:10:23,360 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-28 13:10:23,580 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-28 13:10:23,838 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-11-28 13:10:24,309 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-28 13:10:24,507 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-11-28 13:10:24,680 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-11-28 13:10:24,909 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-11-28 13:10:25,228 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-11-28 13:10:25,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:25,544 INFO L93 Difference]: Finished difference Result 3668 states and 8805 transitions. [2018-11-28 13:10:25,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 13:10:25,544 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:10:25,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:25,546 INFO L225 Difference]: With dead ends: 3668 [2018-11-28 13:10:25,546 INFO L226 Difference]: Without dead ends: 3668 [2018-11-28 13:10:25,547 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=445, Invalid=1277, Unknown=0, NotChecked=0, Total=1722 [2018-11-28 13:10:25,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3668 states. [2018-11-28 13:10:25,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3668 to 2446. [2018-11-28 13:10:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2446 states. [2018-11-28 13:10:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 6348 transitions. [2018-11-28 13:10:25,571 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 6348 transitions. Word has length 96 [2018-11-28 13:10:25,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:25,571 INFO L480 AbstractCegarLoop]: Abstraction has 2446 states and 6348 transitions. [2018-11-28 13:10:25,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:10:25,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 6348 transitions. [2018-11-28 13:10:25,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:10:25,573 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:25,573 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:25,573 INFO L423 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:25,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:25,574 INFO L82 PathProgramCache]: Analyzing trace with hash -374342, now seen corresponding path program 30 times [2018-11-28 13:10:25,574 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:25,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:25,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:25,578 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:10:25,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:26,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:26,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:10:26,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:10:26,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:10:26,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:10:26,565 INFO L87 Difference]: Start difference. First operand 2446 states and 6348 transitions. Second operand 21 states. [2018-11-28 13:10:27,400 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:10:27,696 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-11-28 13:10:27,892 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-11-28 13:10:28,078 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-11-28 13:10:28,320 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-11-28 13:10:28,572 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2018-11-28 13:10:28,788 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:10:29,043 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-11-28 13:10:29,468 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-28 13:10:29,656 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-11-28 13:10:29,843 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-11-28 13:10:29,985 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-11-28 13:10:30,365 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-11-28 13:10:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:30,639 INFO L93 Difference]: Finished difference Result 3402 states and 8279 transitions. [2018-11-28 13:10:30,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-28 13:10:30,640 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:10:30,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:30,642 INFO L225 Difference]: With dead ends: 3402 [2018-11-28 13:10:30,642 INFO L226 Difference]: Without dead ends: 3402 [2018-11-28 13:10:30,642 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=476, Invalid=1330, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 13:10:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3402 states. [2018-11-28 13:10:30,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3402 to 2440. [2018-11-28 13:10:30,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2440 states. [2018-11-28 13:10:30,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 6333 transitions. [2018-11-28 13:10:30,666 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 6333 transitions. Word has length 96 [2018-11-28 13:10:30,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:30,667 INFO L480 AbstractCegarLoop]: Abstraction has 2440 states and 6333 transitions. [2018-11-28 13:10:30,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:10:30,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 6333 transitions. [2018-11-28 13:10:30,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:10:30,668 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:30,669 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:30,669 INFO L423 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:30,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:30,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1768965558, now seen corresponding path program 31 times [2018-11-28 13:10:30,669 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:30,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:30,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:30,673 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:10:30,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:31,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:31,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:10:31,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:10:31,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:10:31,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:10:31,677 INFO L87 Difference]: Start difference. First operand 2440 states and 6333 transitions. Second operand 21 states. [2018-11-28 13:10:32,299 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-11-28 13:10:32,488 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:10:32,665 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-11-28 13:10:32,855 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:10:33,082 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-11-28 13:10:33,347 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2018-11-28 13:10:33,562 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-11-28 13:10:33,829 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2018-11-28 13:10:34,266 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-11-28 13:10:34,562 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-11-28 13:10:34,789 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-11-28 13:10:35,066 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-11-28 13:10:35,579 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-11-28 13:10:35,822 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-11-28 13:10:36,018 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-11-28 13:10:36,261 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2018-11-28 13:10:36,409 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2018-11-28 13:10:36,604 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2018-11-28 13:10:36,799 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-11-28 13:10:37,013 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-11-28 13:10:37,304 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2018-11-28 13:10:37,442 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-11-28 13:10:37,604 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2018-11-28 13:10:37,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:37,621 INFO L93 Difference]: Finished difference Result 4083 states and 10082 transitions. [2018-11-28 13:10:37,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-28 13:10:37,621 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:10:37,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:37,623 INFO L225 Difference]: With dead ends: 4083 [2018-11-28 13:10:37,623 INFO L226 Difference]: Without dead ends: 4083 [2018-11-28 13:10:37,624 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=653, Invalid=1699, Unknown=0, NotChecked=0, Total=2352 [2018-11-28 13:10:37,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2018-11-28 13:10:37,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 1967. [2018-11-28 13:10:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1967 states. [2018-11-28 13:10:37,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 5046 transitions. [2018-11-28 13:10:37,646 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 5046 transitions. Word has length 96 [2018-11-28 13:10:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:37,646 INFO L480 AbstractCegarLoop]: Abstraction has 1967 states and 5046 transitions. [2018-11-28 13:10:37,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:10:37,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 5046 transitions. [2018-11-28 13:10:37,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:10:37,647 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:37,647 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:37,647 INFO L423 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:37,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:37,648 INFO L82 PathProgramCache]: Analyzing trace with hash -2038021398, now seen corresponding path program 32 times [2018-11-28 13:10:37,648 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:37,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:37,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:37,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:37,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:38,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:38,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:10:38,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:10:38,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:10:38,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:10:38,606 INFO L87 Difference]: Start difference. First operand 1967 states and 5046 transitions. Second operand 21 states. [2018-11-28 13:10:39,191 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-11-28 13:10:39,369 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:10:39,543 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-11-28 13:10:39,722 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:10:39,938 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-11-28 13:10:40,182 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-11-28 13:10:40,586 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-11-28 13:10:40,823 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-11-28 13:10:41,070 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:10:41,304 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-11-28 13:10:41,578 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-11-28 13:10:42,078 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-11-28 13:10:42,300 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2018-11-28 13:10:42,495 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-11-28 13:10:42,716 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-11-28 13:10:42,884 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2018-11-28 13:10:43,073 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2018-11-28 13:10:43,206 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2018-11-28 13:10:43,376 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-11-28 13:10:43,591 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-11-28 13:10:43,803 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2018-11-28 13:10:44,099 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2018-11-28 13:10:44,246 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-11-28 13:10:44,408 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-11-28 13:10:44,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:44,429 INFO L93 Difference]: Finished difference Result 4336 states and 10537 transitions. [2018-11-28 13:10:44,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-28 13:10:44,429 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:10:44,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:44,433 INFO L225 Difference]: With dead ends: 4336 [2018-11-28 13:10:44,433 INFO L226 Difference]: Without dead ends: 4336 [2018-11-28 13:10:44,433 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=667, Invalid=1783, Unknown=0, NotChecked=0, Total=2450 [2018-11-28 13:10:44,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2018-11-28 13:10:44,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 1956. [2018-11-28 13:10:44,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2018-11-28 13:10:44,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 5013 transitions. [2018-11-28 13:10:44,457 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 5013 transitions. Word has length 96 [2018-11-28 13:10:44,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:44,457 INFO L480 AbstractCegarLoop]: Abstraction has 1956 states and 5013 transitions. [2018-11-28 13:10:44,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:10:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 5013 transitions. [2018-11-28 13:10:44,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-28 13:10:44,460 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:44,460 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:44,460 INFO L423 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:44,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:44,460 INFO L82 PathProgramCache]: Analyzing trace with hash -907863174, now seen corresponding path program 33 times [2018-11-28 13:10:44,460 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:44,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:44,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:44,466 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:10:44,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:45,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:45,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-28 13:10:45,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 13:10:45,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 13:10:45,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-11-28 13:10:45,482 INFO L87 Difference]: Start difference. First operand 1956 states and 5013 transitions. Second operand 21 states. [2018-11-28 13:10:46,133 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-11-28 13:10:46,311 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-11-28 13:10:46,486 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-11-28 13:10:46,671 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-11-28 13:10:47,080 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2018-11-28 13:10:47,276 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-11-28 13:10:47,516 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-11-28 13:10:47,760 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-11-28 13:10:47,980 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-11-28 13:10:48,235 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-11-28 13:10:48,709 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-11-28 13:10:48,905 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-11-28 13:10:49,077 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2018-11-28 13:10:49,318 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-11-28 13:10:49,505 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-11-28 13:10:49,719 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-11-28 13:10:49,876 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-11-28 13:10:49,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:49,891 INFO L93 Difference]: Finished difference Result 2857 states and 6970 transitions. [2018-11-28 13:10:49,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-28 13:10:49,891 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-11-28 13:10:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:49,893 INFO L225 Difference]: With dead ends: 2857 [2018-11-28 13:10:49,894 INFO L226 Difference]: Without dead ends: 2857 [2018-11-28 13:10:49,894 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=488, Invalid=1318, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 13:10:49,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2018-11-28 13:10:49,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1778. [2018-11-28 13:10:49,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2018-11-28 13:10:49,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 4648 transitions. [2018-11-28 13:10:49,912 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 4648 transitions. Word has length 96 [2018-11-28 13:10:49,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:49,912 INFO L480 AbstractCegarLoop]: Abstraction has 1778 states and 4648 transitions. [2018-11-28 13:10:49,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 13:10:49,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 4648 transitions. [2018-11-28 13:10:49,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:10:49,914 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:49,915 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:49,915 INFO L423 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:49,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:49,915 INFO L82 PathProgramCache]: Analyzing trace with hash 388540451, now seen corresponding path program 1 times [2018-11-28 13:10:49,915 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:49,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:49,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:49,920 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:10:49,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:51,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:51,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:51,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2018-11-28 13:10:51,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-28 13:10:51,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-28 13:10:51,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2018-11-28 13:10:51,713 INFO L87 Difference]: Start difference. First operand 1778 states and 4648 transitions. Second operand 27 states. [2018-11-28 13:10:52,743 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2018-11-28 13:10:52,941 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2018-11-28 13:10:53,118 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2018-11-28 13:10:53,397 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2018-11-28 13:10:54,776 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2018-11-28 13:10:55,069 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2018-11-28 13:10:55,415 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2018-11-28 13:10:55,699 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2018-11-28 13:10:57,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:57,372 INFO L93 Difference]: Finished difference Result 2578 states and 6470 transitions. [2018-11-28 13:10:57,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-11-28 13:10:57,372 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 102 [2018-11-28 13:10:57,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:57,374 INFO L225 Difference]: With dead ends: 2578 [2018-11-28 13:10:57,374 INFO L226 Difference]: Without dead ends: 2399 [2018-11-28 13:10:57,375 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=727, Invalid=3563, Unknown=0, NotChecked=0, Total=4290 [2018-11-28 13:10:57,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2018-11-28 13:10:57,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 1778. [2018-11-28 13:10:57,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2018-11-28 13:10:57,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 4636 transitions. [2018-11-28 13:10:57,393 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 4636 transitions. Word has length 102 [2018-11-28 13:10:57,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:57,393 INFO L480 AbstractCegarLoop]: Abstraction has 1778 states and 4636 transitions. [2018-11-28 13:10:57,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-28 13:10:57,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 4636 transitions. [2018-11-28 13:10:57,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:10:57,394 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:57,395 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:57,395 INFO L423 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:57,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:57,395 INFO L82 PathProgramCache]: Analyzing trace with hash -39798651, now seen corresponding path program 2 times [2018-11-28 13:10:57,395 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:57,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:57,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:57,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:57,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:00,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:00,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:00,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2018-11-28 13:11:00,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-28 13:11:00,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-28 13:11:00,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2018-11-28 13:11:00,065 INFO L87 Difference]: Start difference. First operand 1778 states and 4636 transitions. Second operand 33 states. [2018-11-28 13:11:01,116 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-11-28 13:11:01,382 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-11-28 13:11:01,661 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-11-28 13:11:01,912 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2018-11-28 13:11:02,192 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2018-11-28 13:11:02,476 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2018-11-28 13:11:03,328 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2018-11-28 13:11:04,396 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2018-11-28 13:11:04,542 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2018-11-28 13:11:04,745 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2018-11-28 13:11:04,906 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2018-11-28 13:11:05,151 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2018-11-28 13:11:05,349 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2018-11-28 13:11:05,529 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2018-11-28 13:11:05,819 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2018-11-28 13:11:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:06,785 INFO L93 Difference]: Finished difference Result 2301 states and 5911 transitions. [2018-11-28 13:11:06,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-28 13:11:06,786 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 102 [2018-11-28 13:11:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:06,788 INFO L225 Difference]: With dead ends: 2301 [2018-11-28 13:11:06,788 INFO L226 Difference]: Without dead ends: 2161 [2018-11-28 13:11:06,788 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=715, Invalid=3841, Unknown=0, NotChecked=0, Total=4556 [2018-11-28 13:11:06,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2018-11-28 13:11:06,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1822. [2018-11-28 13:11:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1822 states. [2018-11-28 13:11:06,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 4753 transitions. [2018-11-28 13:11:06,807 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 4753 transitions. Word has length 102 [2018-11-28 13:11:06,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:06,808 INFO L480 AbstractCegarLoop]: Abstraction has 1822 states and 4753 transitions. [2018-11-28 13:11:06,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-28 13:11:06,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 4753 transitions. [2018-11-28 13:11:06,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:11:06,810 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:06,810 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:06,810 INFO L423 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:06,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:06,810 INFO L82 PathProgramCache]: Analyzing trace with hash -604871447, now seen corresponding path program 3 times [2018-11-28 13:11:06,811 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:06,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:06,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:06,817 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:11:06,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:09,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:09,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:09,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2018-11-28 13:11:09,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-11-28 13:11:09,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-11-28 13:11:09,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1034, Unknown=0, NotChecked=0, Total=1122 [2018-11-28 13:11:09,029 INFO L87 Difference]: Start difference. First operand 1822 states and 4753 transitions. Second operand 34 states. [2018-11-28 13:11:09,937 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-11-28 13:11:10,165 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-11-28 13:11:10,440 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-11-28 13:11:10,684 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2018-11-28 13:11:10,968 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2018-11-28 13:11:11,246 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-11-28 13:11:12,087 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2018-11-28 13:11:12,428 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2018-11-28 13:11:13,456 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2018-11-28 13:11:13,619 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2018-11-28 13:11:13,846 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2018-11-28 13:11:14,026 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2018-11-28 13:11:14,200 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2018-11-28 13:11:14,497 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-11-28 13:11:15,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:15,445 INFO L93 Difference]: Finished difference Result 2315 states and 5965 transitions. [2018-11-28 13:11:15,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-28 13:11:15,445 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 102 [2018-11-28 13:11:15,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:15,447 INFO L225 Difference]: With dead ends: 2315 [2018-11-28 13:11:15,447 INFO L226 Difference]: Without dead ends: 2188 [2018-11-28 13:11:15,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=728, Invalid=3964, Unknown=0, NotChecked=0, Total=4692 [2018-11-28 13:11:15,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2018-11-28 13:11:15,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 1910. [2018-11-28 13:11:15,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1910 states. [2018-11-28 13:11:15,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 4987 transitions. [2018-11-28 13:11:15,468 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 4987 transitions. Word has length 102 [2018-11-28 13:11:15,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:15,468 INFO L480 AbstractCegarLoop]: Abstraction has 1910 states and 4987 transitions. [2018-11-28 13:11:15,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-11-28 13:11:15,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 4987 transitions. [2018-11-28 13:11:15,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:11:15,470 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:15,471 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:15,471 INFO L423 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:15,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:15,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1479820581, now seen corresponding path program 4 times [2018-11-28 13:11:15,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:15,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:15,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:15,478 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:11:15,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:17,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:17,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:17,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2018-11-28 13:11:17,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-28 13:11:17,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-28 13:11:17,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2018-11-28 13:11:17,743 INFO L87 Difference]: Start difference. First operand 1910 states and 4987 transitions. Second operand 33 states. [2018-11-28 13:11:18,673 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2018-11-28 13:11:18,864 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-11-28 13:11:19,148 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2018-11-28 13:11:19,426 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-11-28 13:11:19,707 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2018-11-28 13:11:20,004 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-11-28 13:11:20,315 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2018-11-28 13:11:20,517 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2018-11-28 13:11:21,194 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2018-11-28 13:11:21,534 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2018-11-28 13:11:22,116 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2018-11-28 13:11:22,321 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2018-11-28 13:11:22,494 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-11-28 13:11:23,413 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2018-11-28 13:11:23,703 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-11-28 13:11:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:25,099 INFO L93 Difference]: Finished difference Result 2447 states and 6262 transitions. [2018-11-28 13:11:25,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-11-28 13:11:25,099 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 102 [2018-11-28 13:11:25,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:25,101 INFO L225 Difference]: With dead ends: 2447 [2018-11-28 13:11:25,101 INFO L226 Difference]: Without dead ends: 2183 [2018-11-28 13:11:25,101 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=847, Invalid=4409, Unknown=0, NotChecked=0, Total=5256 [2018-11-28 13:11:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2018-11-28 13:11:25,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 1954. [2018-11-28 13:11:25,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-11-28 13:11:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 5064 transitions. [2018-11-28 13:11:25,119 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 5064 transitions. Word has length 102 [2018-11-28 13:11:25,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:25,120 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 5064 transitions. [2018-11-28 13:11:25,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-28 13:11:25,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 5064 transitions. [2018-11-28 13:11:25,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:11:25,122 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:25,122 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:25,122 INFO L423 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:25,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:25,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1842981911, now seen corresponding path program 5 times [2018-11-28 13:11:25,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:25,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:25,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:25,128 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:11:25,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:26,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:26,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2018-11-28 13:11:26,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-28 13:11:26,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-28 13:11:26,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=640, Unknown=0, NotChecked=0, Total=702 [2018-11-28 13:11:26,963 INFO L87 Difference]: Start difference. First operand 1954 states and 5064 transitions. Second operand 27 states. [2018-11-28 13:11:27,742 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2018-11-28 13:11:27,935 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-11-28 13:11:28,196 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2018-11-28 13:11:28,472 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2018-11-28 13:11:28,727 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2018-11-28 13:11:29,045 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2018-11-28 13:11:29,786 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2018-11-28 13:11:30,088 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2018-11-28 13:11:30,669 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2018-11-28 13:11:30,840 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2018-11-28 13:11:31,334 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2018-11-28 13:11:31,502 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2018-11-28 13:11:31,671 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2018-11-28 13:11:31,832 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-11-28 13:11:32,081 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2018-11-28 13:11:33,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:33,572 INFO L93 Difference]: Finished difference Result 2635 states and 6663 transitions. [2018-11-28 13:11:33,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-11-28 13:11:33,572 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 102 [2018-11-28 13:11:33,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:33,574 INFO L225 Difference]: With dead ends: 2635 [2018-11-28 13:11:33,574 INFO L226 Difference]: Without dead ends: 2214 [2018-11-28 13:11:33,575 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=712, Invalid=3448, Unknown=0, NotChecked=0, Total=4160 [2018-11-28 13:11:33,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2018-11-28 13:11:33,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1634. [2018-11-28 13:11:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2018-11-28 13:11:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 4228 transitions. [2018-11-28 13:11:33,591 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 4228 transitions. Word has length 102 [2018-11-28 13:11:33,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:33,591 INFO L480 AbstractCegarLoop]: Abstraction has 1634 states and 4228 transitions. [2018-11-28 13:11:33,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-28 13:11:33,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 4228 transitions. [2018-11-28 13:11:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:11:33,592 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:33,592 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:33,593 INFO L423 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:33,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:33,593 INFO L82 PathProgramCache]: Analyzing trace with hash -103840989, now seen corresponding path program 6 times [2018-11-28 13:11:33,593 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:33,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:33,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:33,597 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:11:33,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:35,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:35,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:35,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2018-11-28 13:11:35,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-11-28 13:11:35,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-11-28 13:11:35,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2018-11-28 13:11:35,922 INFO L87 Difference]: Start difference. First operand 1634 states and 4228 transitions. Second operand 32 states. [2018-11-28 13:11:36,987 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-11-28 13:11:37,258 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-11-28 13:11:37,542 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-11-28 13:11:37,788 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2018-11-28 13:11:38,083 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2018-11-28 13:11:38,376 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2018-11-28 13:11:39,613 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2018-11-28 13:11:39,831 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2018-11-28 13:11:40,187 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2018-11-28 13:11:40,674 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2018-11-28 13:11:40,852 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2018-11-28 13:11:41,126 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2018-11-28 13:11:41,344 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2018-11-28 13:11:41,529 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2018-11-28 13:11:41,829 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2018-11-28 13:11:42,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:42,841 INFO L93 Difference]: Finished difference Result 1939 states and 4894 transitions. [2018-11-28 13:11:42,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-28 13:11:42,841 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 102 [2018-11-28 13:11:42,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:42,843 INFO L225 Difference]: With dead ends: 1939 [2018-11-28 13:11:42,843 INFO L226 Difference]: Without dead ends: 1760 [2018-11-28 13:11:42,843 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=719, Invalid=3703, Unknown=0, NotChecked=0, Total=4422 [2018-11-28 13:11:42,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2018-11-28 13:11:42,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1640. [2018-11-28 13:11:42,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1640 states. [2018-11-28 13:11:42,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 4237 transitions. [2018-11-28 13:11:42,857 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 4237 transitions. Word has length 102 [2018-11-28 13:11:42,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:42,857 INFO L480 AbstractCegarLoop]: Abstraction has 1640 states and 4237 transitions. [2018-11-28 13:11:42,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-11-28 13:11:42,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 4237 transitions. [2018-11-28 13:11:42,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:11:42,858 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:42,859 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:42,859 INFO L423 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:42,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:42,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1196016419, now seen corresponding path program 7 times [2018-11-28 13:11:42,859 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:42,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:42,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:42,863 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:11:42,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:43,462 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2018-11-28 13:11:43,601 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2018-11-28 13:11:44,206 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-11-28 13:11:44,345 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2018-11-28 13:11:45,219 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 28 [2018-11-28 13:11:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:45,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:45,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2018-11-28 13:11:45,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-11-28 13:11:45,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-11-28 13:11:45,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1102, Unknown=0, NotChecked=0, Total=1190 [2018-11-28 13:11:45,870 INFO L87 Difference]: Start difference. First operand 1640 states and 4237 transitions. Second operand 35 states. [2018-11-28 13:11:46,836 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2018-11-28 13:11:47,029 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2018-11-28 13:11:47,264 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-11-28 13:11:47,603 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2018-11-28 13:11:47,960 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2018-11-28 13:11:48,287 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2018-11-28 13:11:48,627 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2018-11-28 13:11:48,992 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2018-11-28 13:11:49,597 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-11-28 13:11:50,618 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2018-11-28 13:11:51,071 WARN L180 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 77 [2018-11-28 13:11:51,288 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2018-11-28 13:11:51,482 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2018-11-28 13:11:51,872 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2018-11-28 13:11:52,315 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2018-11-28 13:11:52,806 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2018-11-28 13:11:53,122 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2018-11-28 13:11:53,353 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2018-11-28 13:11:53,544 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2018-11-28 13:11:53,737 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2018-11-28 13:11:54,572 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2018-11-28 13:11:55,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:55,127 INFO L93 Difference]: Finished difference Result 1895 states and 4796 transitions. [2018-11-28 13:11:55,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-11-28 13:11:55,127 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 102 [2018-11-28 13:11:55,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:55,129 INFO L225 Difference]: With dead ends: 1895 [2018-11-28 13:11:55,129 INFO L226 Difference]: Without dead ends: 1755 [2018-11-28 13:11:55,130 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1286 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=923, Invalid=5239, Unknown=0, NotChecked=0, Total=6162 [2018-11-28 13:11:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2018-11-28 13:11:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1642. [2018-11-28 13:11:55,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2018-11-28 13:11:55,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 4240 transitions. [2018-11-28 13:11:55,147 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 4240 transitions. Word has length 102 [2018-11-28 13:11:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:55,148 INFO L480 AbstractCegarLoop]: Abstraction has 1642 states and 4240 transitions. [2018-11-28 13:11:55,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-11-28 13:11:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 4240 transitions. [2018-11-28 13:11:55,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:11:55,150 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:55,150 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:55,150 INFO L423 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:55,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:55,151 INFO L82 PathProgramCache]: Analyzing trace with hash -804041717, now seen corresponding path program 8 times [2018-11-28 13:11:55,151 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:55,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:55,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:55,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:11:55,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:57,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:57,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2018-11-28 13:11:57,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-28 13:11:57,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-28 13:11:57,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2018-11-28 13:11:57,603 INFO L87 Difference]: Start difference. First operand 1642 states and 4240 transitions. Second operand 33 states. [2018-11-28 13:11:58,486 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2018-11-28 13:11:58,669 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-11-28 13:11:58,938 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-11-28 13:11:59,222 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-11-28 13:11:59,472 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2018-11-28 13:11:59,781 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2018-11-28 13:12:00,088 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2018-11-28 13:12:01,273 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2018-11-28 13:12:01,603 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2018-11-28 13:12:01,937 WARN L180 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2018-11-28 13:12:02,295 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2018-11-28 13:12:02,729 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2018-11-28 13:12:02,912 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2018-11-28 13:12:03,255 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 66 [2018-11-28 13:12:03,597 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2018-11-28 13:12:04,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:04,927 INFO L93 Difference]: Finished difference Result 1972 states and 4919 transitions. [2018-11-28 13:12:04,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-11-28 13:12:04,927 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 102 [2018-11-28 13:12:04,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:12:04,928 INFO L225 Difference]: With dead ends: 1972 [2018-11-28 13:12:04,929 INFO L226 Difference]: Without dead ends: 1845 [2018-11-28 13:12:04,929 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=837, Invalid=4133, Unknown=0, NotChecked=0, Total=4970 [2018-11-28 13:12:04,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2018-11-28 13:12:04,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1646. [2018-11-28 13:12:04,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-11-28 13:12:04,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 4246 transitions. [2018-11-28 13:12:04,952 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 4246 transitions. Word has length 102 [2018-11-28 13:12:04,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:12:04,953 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 4246 transitions. [2018-11-28 13:12:04,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-28 13:12:04,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 4246 transitions. [2018-11-28 13:12:04,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:12:04,954 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:12:04,954 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:12:04,954 INFO L423 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:12:04,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:04,954 INFO L82 PathProgramCache]: Analyzing trace with hash 14554283, now seen corresponding path program 1 times [2018-11-28 13:12:04,955 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:04,955 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:04,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:04,958 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:04,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:05,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:05,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:12:05,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-11-28 13:12:05,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-28 13:12:05,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-28 13:12:05,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2018-11-28 13:12:05,677 INFO L87 Difference]: Start difference. First operand 1646 states and 4246 transitions. Second operand 20 states. [2018-11-28 13:12:07,113 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2018-11-28 13:12:07,556 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2018-11-28 13:12:07,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:07,904 INFO L93 Difference]: Finished difference Result 2412 states and 6128 transitions. [2018-11-28 13:12:07,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-28 13:12:07,904 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 102 [2018-11-28 13:12:07,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:12:07,906 INFO L225 Difference]: With dead ends: 2412 [2018-11-28 13:12:07,907 INFO L226 Difference]: Without dead ends: 2377 [2018-11-28 13:12:07,907 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=382, Invalid=878, Unknown=0, NotChecked=0, Total=1260 [2018-11-28 13:12:07,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2377 states. [2018-11-28 13:12:07,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2377 to 1914. [2018-11-28 13:12:07,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2018-11-28 13:12:07,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 4893 transitions. [2018-11-28 13:12:07,926 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 4893 transitions. Word has length 102 [2018-11-28 13:12:07,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:12:07,926 INFO L480 AbstractCegarLoop]: Abstraction has 1914 states and 4893 transitions. [2018-11-28 13:12:07,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-28 13:12:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 4893 transitions. [2018-11-28 13:12:07,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-28 13:12:07,928 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:12:07,928 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:12:07,929 INFO L423 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:12:07,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:07,929 INFO L82 PathProgramCache]: Analyzing trace with hash -326014713, now seen corresponding path program 9 times [2018-11-28 13:12:07,929 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:07,929 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:07,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:07,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:07,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:07,987 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 13:12:08,063 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 13:12:08,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:12:08 BasicIcfg [2018-11-28 13:12:08,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:12:08,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:12:08,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:12:08,066 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:12:08,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:08:04" (3/4) ... [2018-11-28 13:12:08,071 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 13:12:08,136 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_df3bfebc-5751-4274-9149-01fad3a883b2/bin-2019/uautomizer/witness.graphml [2018-11-28 13:12:08,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:12:08,137 INFO L168 Benchmark]: Toolchain (without parser) took 244827.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 949.6 MB in the beginning and 960.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 164.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:08,137 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:12:08,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -69.5 MB). Peak memory consumption was 81.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:08,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:08,138 INFO L168 Benchmark]: Boogie Preprocessor took 33.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:08,138 INFO L168 Benchmark]: RCFGBuilder took 464.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 964.8 MB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:08,138 INFO L168 Benchmark]: TraceAbstraction took 243395.92 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.3 MB). Free memory was 962.1 MB in the beginning and 981.3 MB in the end (delta: -19.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:08,138 INFO L168 Benchmark]: Witness Printer took 71.34 ms. Allocated memory is still 1.2 GB. Free memory was 981.3 MB in the beginning and 960.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:08,139 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 811.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -69.5 MB). Peak memory consumption was 81.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 464.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 964.8 MB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 243395.92 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.3 MB). Free memory was 962.1 MB in the beginning and 981.3 MB in the end (delta: -19.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Witness Printer took 71.34 ms. Allocated memory is still 1.2 GB. Free memory was 981.3 MB in the beginning and 960.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3772]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3774] -1 pthread_t t1,t2; VAL [t1={70:0}, t2={61:0}] [L3791] -1 struct device *my_dev; VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3839] -1 return 0; VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3847] -1 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3848] COND TRUE -1 ret==0 VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3849] -1 int probe_ret; VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3850] -1 struct my_data data; VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3809] -1 data->shared.a = 0 VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3810] -1 data->shared.b = 0 VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3811] -1 data->shared.a VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3772] COND FALSE -1 !(!expression) VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3812] -1 data->shared.b VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3772] COND FALSE -1 !(!expression) VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3814] -1 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3815] COND FALSE -1 !(\read(res)) VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3819] -1 my_dev = &data->dev VAL [my_dev={64:40}, t1={70:0}, t2={61:0}] [L3822] FCALL, FORK -1 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3794] 0 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3795] 0 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3795] 0 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3799] 0 data->shared.a = 1 VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3800] 0 data->shared.b VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3823] FCALL, FORK -1 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3824] -1 return 0; VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3851] -1 probe_ret = my_drv_probe(&data) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3852] COND TRUE -1 probe_ret==0 VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3832] -1 void *status; VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3794] 1 struct my_data *data; VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3795] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3833] -1 \read(t1) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3795] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3799] 1 data->shared.a = 1 VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3800] EXPR 1 data->shared.b VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3800] 1 data->shared.b = data->shared.b + 1 VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3802] 1 return 0; VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3800] 0 data->shared.b = data->shared.b + 1 VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3802] 0 return 0; VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3833] FCALL, JOIN 0 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3834] -1 \read(t2) VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3834] FCALL, JOIN 1 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3854] -1 data.shared.a VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3772] COND FALSE -1 !(!expression) VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3855] -1 data.shared.b VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3772] COND TRUE -1 !expression VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3772] -1 __VERIFIER_error() VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 148 locations, 6 error locations. UNSAFE Result, 243.3s OverallTime, 48 OverallIterations, 1 TraceHistogramMax, 189.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8471 SDtfs, 38556 SDslu, 70778 SDs, 0 SdLazy, 41833 SolverSat, 4589 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 43.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2197 GetRequests, 119 SyntacticMatches, 68 SemanticMatches, 2010 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16337 ImplicationChecksByTransitivity, 185.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5125occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 47 MinimizatonAttempts, 62616 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 50.0s InterpolantComputationTime, 4439 NumberOfCodeBlocks, 4439 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 4290 ConstructedInterpolants, 0 QuantifiedInterpolants, 6921114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...