./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/queue_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_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/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 4dcef825264df8187b9da8f10cba2a6a915a4c48 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:39:50,284 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:39:50,286 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:39:50,299 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:39:50,299 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:39:50,300 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:39:50,301 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:39:50,302 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:39:50,303 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:39:50,304 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:39:50,305 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:39:50,305 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:39:50,306 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:39:50,307 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:39:50,308 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:39:50,309 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:39:50,309 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:39:50,311 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:39:50,313 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:39:50,315 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:39:50,316 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:39:50,317 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:39:50,319 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:39:50,319 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:39:50,320 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:39:50,321 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:39:50,322 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:39:50,323 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:39:50,323 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:39:50,324 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:39:50,325 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:39:50,325 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:39:50,325 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:39:50,326 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:39:50,326 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:39:50,327 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:39:50,327 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:39:50,339 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:39:50,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:39:50,341 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:39:50,341 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:39:50,341 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:39:50,341 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:39:50,342 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:39:50,342 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:39:50,342 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:39:50,342 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:39:50,342 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:39:50,342 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:39:50,343 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:39:50,343 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:39:50,343 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:39:50,343 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:39:50,343 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:39:50,343 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:39:50,343 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:39:50,345 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:39:50,346 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:39:50,346 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:39:50,346 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:39:50,346 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:39:50,346 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:39:50,346 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:39:50,347 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:39:50,347 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:39:50,347 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:39:50,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:39:50,347 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_10d3b844-103e-4001-a671-263b2ee48289/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 -> 4dcef825264df8187b9da8f10cba2a6a915a4c48 [2018-11-28 11:39:50,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:39:50,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:39:50,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:39:50,392 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:39:50,392 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:39:50,393 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/../../sv-benchmarks/c/pthread/queue_false-unreach-call.i [2018-11-28 11:39:50,436 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/data/b5066d939/8872fb132f4f4f5a906551f78e6a9217/FLAGe058493dc [2018-11-28 11:39:50,829 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:39:50,830 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/sv-benchmarks/c/pthread/queue_false-unreach-call.i [2018-11-28 11:39:50,840 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/data/b5066d939/8872fb132f4f4f5a906551f78e6a9217/FLAGe058493dc [2018-11-28 11:39:50,851 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/data/b5066d939/8872fb132f4f4f5a906551f78e6a9217 [2018-11-28 11:39:50,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:39:50,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:39:50,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:39:50,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:39:50,858 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:39:50,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:39:50" (1/1) ... [2018-11-28 11:39:50,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6984b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:50, skipping insertion in model container [2018-11-28 11:39:50,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:39:50" (1/1) ... [2018-11-28 11:39:50,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:39:50,896 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:39:51,238 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:39:51,254 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:39:51,301 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:39:51,418 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:39:51,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51 WrapperNode [2018-11-28 11:39:51,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:39:51,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:39:51,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:39:51,420 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:39:51,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... [2018-11-28 11:39:51,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... [2018-11-28 11:39:51,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:39:51,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:39:51,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:39:51,475 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:39:51,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... [2018-11-28 11:39:51,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... [2018-11-28 11:39:51,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... [2018-11-28 11:39:51,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... [2018-11-28 11:39:51,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... [2018-11-28 11:39:51,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... [2018-11-28 11:39:51,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... [2018-11-28 11:39:51,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:39:51,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:39:51,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:39:51,511 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:39:51,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/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 11:39:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-11-28 11:39:51,567 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-11-28 11:39:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-11-28 11:39:51,568 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-11-28 11:39:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:39:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-28 11:39:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:39:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 11:39:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 11:39:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-28 11:39:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 11:39:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:39:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:39:51,570 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 11:39:52,175 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:39:52,176 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-11-28 11:39:52,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:39:52 BoogieIcfgContainer [2018-11-28 11:39:52,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:39:52,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:39:52,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:39:52,180 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:39:52,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:39:50" (1/3) ... [2018-11-28 11:39:52,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361e7634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:39:52, skipping insertion in model container [2018-11-28 11:39:52,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:51" (2/3) ... [2018-11-28 11:39:52,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361e7634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:39:52, skipping insertion in model container [2018-11-28 11:39:52,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:39:52" (3/3) ... [2018-11-28 11:39:52,182 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_false-unreach-call.i [2018-11-28 11:39:52,217 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,217 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,217 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,217 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,218 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,218 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,218 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,218 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,218 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,218 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,219 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,219 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,219 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,219 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,219 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,219 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,219 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,219 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,220 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,220 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,220 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,220 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,220 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,220 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,220 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,220 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,220 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,221 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,221 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,221 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,221 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,221 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,221 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,221 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,221 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,221 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,222 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,222 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,222 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,222 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,222 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,222 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,222 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,222 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,223 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,223 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,223 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,223 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,223 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,223 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,223 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,224 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,224 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,224 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,224 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,224 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,224 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,224 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,225 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,225 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,225 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,225 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,225 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,225 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,225 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,226 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,226 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,226 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,226 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,226 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,226 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,227 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,227 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,227 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,227 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,227 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,227 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,227 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,228 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,228 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,228 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,228 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,228 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,228 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,229 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,229 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,229 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,229 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,229 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,229 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,229 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,229 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,229 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,230 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,230 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,231 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,231 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,231 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,231 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,231 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,231 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,231 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,231 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,232 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,232 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,232 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,232 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,232 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,232 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,232 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,232 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,233 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,233 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,233 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,233 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,233 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,233 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,233 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,233 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,234 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,234 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,234 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,234 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,234 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,234 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,234 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,234 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,234 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,235 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,235 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,235 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,235 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,235 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,235 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,235 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,236 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,236 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,236 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,236 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,236 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,236 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,236 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,236 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,237 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,237 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,237 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,237 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,237 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,237 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,237 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,237 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,238 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,238 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,238 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,238 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,238 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,238 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,238 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,238 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,239 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,239 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,239 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,239 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,239 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,239 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,239 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,239 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,239 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,240 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,240 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,240 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,240 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,240 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,240 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,240 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,240 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,241 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,241 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,241 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,241 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,241 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,241 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,241 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,242 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,242 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,242 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,242 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,243 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,243 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,243 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,243 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,243 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,243 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,243 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,243 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,244 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,244 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,244 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,244 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,244 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,244 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,244 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,245 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,245 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,245 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,245 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,245 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,245 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,245 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,245 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,245 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,246 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,246 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,246 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,246 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,246 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,246 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,246 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,246 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,246 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,247 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,247 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,247 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,247 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,247 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,247 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,247 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,247 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,247 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,248 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,248 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,248 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,248 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,248 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,248 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,248 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,248 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,249 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,249 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,249 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,249 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,249 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,249 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,249 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,249 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,250 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,250 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,250 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,250 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,250 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,250 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,250 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,252 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,252 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,252 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,252 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,252 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,252 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,253 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,253 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,253 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,253 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,253 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,253 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,253 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,253 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,254 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,254 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,254 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,254 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,254 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,254 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,254 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,255 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,255 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,255 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,255 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:39:52,294 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 11:39:52,294 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:39:52,301 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-28 11:39:52,314 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-28 11:39:52,334 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:39:52,334 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:39:52,335 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:39:52,335 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:39:52,335 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:39:52,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:39:52,335 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:39:52,335 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:39:52,335 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:39:52,349 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 270places, 284 transitions [2018-11-28 11:39:52,900 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 17270 states. [2018-11-28 11:39:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 17270 states. [2018-11-28 11:39:52,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-11-28 11:39:52,911 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:52,912 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] [2018-11-28 11:39:52,914 INFO L423 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:39:52,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:52,918 INFO L82 PathProgramCache]: Analyzing trace with hash -150895325, now seen corresponding path program 1 times [2018-11-28 11:39:52,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:52,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:52,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:52,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:52,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:39:53,103 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 11:39:53,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:39:53,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:39:53,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:39:53,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:39:53,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:39:53,123 INFO L87 Difference]: Start difference. First operand 17270 states. Second operand 2 states. [2018-11-28 11:39:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:39:53,323 INFO L93 Difference]: Finished difference Result 17267 states and 46801 transitions. [2018-11-28 11:39:53,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:39:53,324 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 86 [2018-11-28 11:39:53,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:39:53,383 INFO L225 Difference]: With dead ends: 17267 [2018-11-28 11:39:53,383 INFO L226 Difference]: Without dead ends: 16685 [2018-11-28 11:39:53,385 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:39:53,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16685 states. [2018-11-28 11:39:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16685 to 16685. [2018-11-28 11:39:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16685 states. [2018-11-28 11:39:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16685 states to 16685 states and 45327 transitions. [2018-11-28 11:39:53,751 INFO L78 Accepts]: Start accepts. Automaton has 16685 states and 45327 transitions. Word has length 86 [2018-11-28 11:39:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:39:53,752 INFO L480 AbstractCegarLoop]: Abstraction has 16685 states and 45327 transitions. [2018-11-28 11:39:53,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:39:53,752 INFO L276 IsEmpty]: Start isEmpty. Operand 16685 states and 45327 transitions. [2018-11-28 11:39:53,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-28 11:39:53,761 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:53,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:39:53,762 INFO L423 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:39:53,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:53,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1796982004, now seen corresponding path program 1 times [2018-11-28 11:39:53,763 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:53,763 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:53,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:53,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:53,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:39:53,891 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 11:39:53,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:39:53,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 11:39:53,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 11:39:53,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 11:39:53,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:39:53,895 INFO L87 Difference]: Start difference. First operand 16685 states and 45327 transitions. Second operand 4 states. [2018-11-28 11:39:54,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:39:54,035 INFO L93 Difference]: Finished difference Result 16523 states and 44731 transitions. [2018-11-28 11:39:54,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 11:39:54,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2018-11-28 11:39:54,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:39:54,071 INFO L225 Difference]: With dead ends: 16523 [2018-11-28 11:39:54,071 INFO L226 Difference]: Without dead ends: 16523 [2018-11-28 11:39:54,072 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:39:54,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16523 states. [2018-11-28 11:39:54,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16523 to 16523. [2018-11-28 11:39:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16523 states. [2018-11-28 11:39:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16523 states to 16523 states and 44731 transitions. [2018-11-28 11:39:54,460 INFO L78 Accepts]: Start accepts. Automaton has 16523 states and 44731 transitions. Word has length 119 [2018-11-28 11:39:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:39:54,460 INFO L480 AbstractCegarLoop]: Abstraction has 16523 states and 44731 transitions. [2018-11-28 11:39:54,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 11:39:54,461 INFO L276 IsEmpty]: Start isEmpty. Operand 16523 states and 44731 transitions. [2018-11-28 11:39:54,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-28 11:39:54,470 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:54,470 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, 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 11:39:54,470 INFO L423 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:39:54,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:54,471 INFO L82 PathProgramCache]: Analyzing trace with hash -205835382, now seen corresponding path program 1 times [2018-11-28 11:39:54,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:54,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:54,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:54,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:54,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:39:54,672 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 11:39:54,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:39:54,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:39:54,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:39:54,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:39:54,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:39:54,673 INFO L87 Difference]: Start difference. First operand 16523 states and 44731 transitions. Second operand 3 states. [2018-11-28 11:39:54,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:39:54,779 INFO L93 Difference]: Finished difference Result 11435 states and 30541 transitions. [2018-11-28 11:39:54,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:39:54,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2018-11-28 11:39:54,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:39:54,806 INFO L225 Difference]: With dead ends: 11435 [2018-11-28 11:39:54,806 INFO L226 Difference]: Without dead ends: 11246 [2018-11-28 11:39:54,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:39:54,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11246 states. [2018-11-28 11:39:55,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11246 to 11246. [2018-11-28 11:39:55,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11246 states. [2018-11-28 11:39:55,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11246 states to 11246 states and 30061 transitions. [2018-11-28 11:39:55,092 INFO L78 Accepts]: Start accepts. Automaton has 11246 states and 30061 transitions. Word has length 125 [2018-11-28 11:39:55,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:39:55,093 INFO L480 AbstractCegarLoop]: Abstraction has 11246 states and 30061 transitions. [2018-11-28 11:39:55,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:39:55,093 INFO L276 IsEmpty]: Start isEmpty. Operand 11246 states and 30061 transitions. [2018-11-28 11:39:55,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-28 11:39:55,098 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:55,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:55,098 INFO L423 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:39:55,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:55,098 INFO L82 PathProgramCache]: Analyzing trace with hash -166863642, now seen corresponding path program 1 times [2018-11-28 11:39:55,099 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:55,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:55,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:55,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:55,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:39:55,164 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 11:39:55,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:39:55,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 11:39:55,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 11:39:55,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 11:39:55,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:39:55,165 INFO L87 Difference]: Start difference. First operand 11246 states and 30061 transitions. Second operand 4 states. [2018-11-28 11:39:55,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:39:55,362 INFO L93 Difference]: Finished difference Result 19808 states and 53237 transitions. [2018-11-28 11:39:55,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:39:55,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2018-11-28 11:39:55,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:39:55,416 INFO L225 Difference]: With dead ends: 19808 [2018-11-28 11:39:55,416 INFO L226 Difference]: Without dead ends: 19736 [2018-11-28 11:39:55,416 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:39:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19736 states. [2018-11-28 11:39:55,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19736 to 11318. [2018-11-28 11:39:55,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11318 states. [2018-11-28 11:39:55,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11318 states to 11318 states and 30241 transitions. [2018-11-28 11:39:55,778 INFO L78 Accepts]: Start accepts. Automaton has 11318 states and 30241 transitions. Word has length 134 [2018-11-28 11:39:55,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:39:55,779 INFO L480 AbstractCegarLoop]: Abstraction has 11318 states and 30241 transitions. [2018-11-28 11:39:55,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 11:39:55,779 INFO L276 IsEmpty]: Start isEmpty. Operand 11318 states and 30241 transitions. [2018-11-28 11:39:55,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-11-28 11:39:55,784 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:55,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:55,784 INFO L423 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:39:55,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:55,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1533734656, now seen corresponding path program 1 times [2018-11-28 11:39:55,785 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:55,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:55,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:55,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:55,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:39:56,229 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 19 [2018-11-28 11:39:56,378 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 27 [2018-11-28 11:39:56,798 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 11:39:56,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:39:56,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-28 11:39:56,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 11:39:56,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 11:39:56,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-28 11:39:56,799 INFO L87 Difference]: Start difference. First operand 11318 states and 30241 transitions. Second operand 14 states. [2018-11-28 11:39:57,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:39:57,824 INFO L93 Difference]: Finished difference Result 12004 states and 32031 transitions. [2018-11-28 11:39:57,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 11:39:57,825 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 135 [2018-11-28 11:39:57,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:39:57,843 INFO L225 Difference]: With dead ends: 12004 [2018-11-28 11:39:57,843 INFO L226 Difference]: Without dead ends: 12004 [2018-11-28 11:39:57,844 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2018-11-28 11:39:57,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12004 states. [2018-11-28 11:39:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12004 to 11682. [2018-11-28 11:39:58,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11682 states. [2018-11-28 11:39:58,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11682 states to 11682 states and 31191 transitions. [2018-11-28 11:39:58,034 INFO L78 Accepts]: Start accepts. Automaton has 11682 states and 31191 transitions. Word has length 135 [2018-11-28 11:39:58,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:39:58,034 INFO L480 AbstractCegarLoop]: Abstraction has 11682 states and 31191 transitions. [2018-11-28 11:39:58,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 11:39:58,034 INFO L276 IsEmpty]: Start isEmpty. Operand 11682 states and 31191 transitions. [2018-11-28 11:39:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-28 11:39:58,040 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:58,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:58,040 INFO L423 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:39:58,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:58,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1854410132, now seen corresponding path program 1 times [2018-11-28 11:39:58,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:58,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:58,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:58,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:58,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:39:58,512 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 11:39:58,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:39:58,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-11-28 11:39:58,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-28 11:39:58,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-28 11:39:58,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-11-28 11:39:58,514 INFO L87 Difference]: Start difference. First operand 11682 states and 31191 transitions. Second operand 16 states. [2018-11-28 11:39:59,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:39:59,375 INFO L93 Difference]: Finished difference Result 12832 states and 34191 transitions. [2018-11-28 11:39:59,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 11:39:59,376 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 137 [2018-11-28 11:39:59,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:39:59,399 INFO L225 Difference]: With dead ends: 12832 [2018-11-28 11:39:59,400 INFO L226 Difference]: Without dead ends: 12832 [2018-11-28 11:39:59,400 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=531, Unknown=0, NotChecked=0, Total=756 [2018-11-28 11:39:59,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12832 states. [2018-11-28 11:39:59,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12832 to 11958. [2018-11-28 11:39:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11958 states. [2018-11-28 11:39:59,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11958 states to 11958 states and 31911 transitions. [2018-11-28 11:39:59,593 INFO L78 Accepts]: Start accepts. Automaton has 11958 states and 31911 transitions. Word has length 137 [2018-11-28 11:39:59,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:39:59,593 INFO L480 AbstractCegarLoop]: Abstraction has 11958 states and 31911 transitions. [2018-11-28 11:39:59,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-28 11:39:59,593 INFO L276 IsEmpty]: Start isEmpty. Operand 11958 states and 31911 transitions. [2018-11-28 11:39:59,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-28 11:39:59,599 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:59,600 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:59,600 INFO L423 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:39:59,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:59,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1489829872, now seen corresponding path program 2 times [2018-11-28 11:39:59,600 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:59,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:59,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:59,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:59,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:39:59,870 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 11:39:59,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:39:59,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 11:39:59,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 11:39:59,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 11:39:59,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-11-28 11:39:59,871 INFO L87 Difference]: Start difference. First operand 11958 states and 31911 transitions. Second operand 12 states. [2018-11-28 11:40:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:00,323 INFO L93 Difference]: Finished difference Result 11955 states and 31907 transitions. [2018-11-28 11:40:00,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 11:40:00,323 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 137 [2018-11-28 11:40:00,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:00,342 INFO L225 Difference]: With dead ends: 11955 [2018-11-28 11:40:00,342 INFO L226 Difference]: Without dead ends: 11955 [2018-11-28 11:40:00,343 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2018-11-28 11:40:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11955 states. [2018-11-28 11:40:00,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11955 to 11955. [2018-11-28 11:40:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11955 states. [2018-11-28 11:40:00,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11955 states to 11955 states and 31907 transitions. [2018-11-28 11:40:00,538 INFO L78 Accepts]: Start accepts. Automaton has 11955 states and 31907 transitions. Word has length 137 [2018-11-28 11:40:00,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:00,539 INFO L480 AbstractCegarLoop]: Abstraction has 11955 states and 31907 transitions. [2018-11-28 11:40:00,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 11:40:00,539 INFO L276 IsEmpty]: Start isEmpty. Operand 11955 states and 31907 transitions. [2018-11-28 11:40:00,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-28 11:40:00,546 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:00,546 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:00,547 INFO L423 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:00,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:00,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1370732997, now seen corresponding path program 1 times [2018-11-28 11:40:00,547 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:00,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:00,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:00,552 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:00,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:01,266 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 11:40:01,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:01,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-28 11:40:01,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-28 11:40:01,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-28 11:40:01,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2018-11-28 11:40:01,267 INFO L87 Difference]: Start difference. First operand 11955 states and 31907 transitions. Second operand 18 states. [2018-11-28 11:40:02,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:02,250 INFO L93 Difference]: Finished difference Result 13197 states and 35147 transitions. [2018-11-28 11:40:02,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-28 11:40:02,251 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 138 [2018-11-28 11:40:02,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:02,265 INFO L225 Difference]: With dead ends: 13197 [2018-11-28 11:40:02,265 INFO L226 Difference]: Without dead ends: 13197 [2018-11-28 11:40:02,265 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=255, Invalid=615, Unknown=0, NotChecked=0, Total=870 [2018-11-28 11:40:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13197 states. [2018-11-28 11:40:02,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13197 to 11817. [2018-11-28 11:40:02,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11817 states. [2018-11-28 11:40:02,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11817 states to 11817 states and 31547 transitions. [2018-11-28 11:40:02,404 INFO L78 Accepts]: Start accepts. Automaton has 11817 states and 31547 transitions. Word has length 138 [2018-11-28 11:40:02,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:02,404 INFO L480 AbstractCegarLoop]: Abstraction has 11817 states and 31547 transitions. [2018-11-28 11:40:02,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-28 11:40:02,405 INFO L276 IsEmpty]: Start isEmpty. Operand 11817 states and 31547 transitions. [2018-11-28 11:40:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-28 11:40:02,408 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:02,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:02,408 INFO L423 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:02,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:02,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1799420963, now seen corresponding path program 2 times [2018-11-28 11:40:02,409 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:02,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:02,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:02,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:02,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:02,738 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 11:40:02,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:02,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-28 11:40:02,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 11:40:02,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 11:40:02,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2018-11-28 11:40:02,739 INFO L87 Difference]: Start difference. First operand 11817 states and 31547 transitions. Second operand 15 states. [2018-11-28 11:40:03,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:03,383 INFO L93 Difference]: Finished difference Result 11725 states and 31261 transitions. [2018-11-28 11:40:03,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 11:40:03,383 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 138 [2018-11-28 11:40:03,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:03,396 INFO L225 Difference]: With dead ends: 11725 [2018-11-28 11:40:03,396 INFO L226 Difference]: Without dead ends: 11725 [2018-11-28 11:40:03,396 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2018-11-28 11:40:03,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11725 states. [2018-11-28 11:40:03,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11725 to 11219. [2018-11-28 11:40:03,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11219 states. [2018-11-28 11:40:03,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11219 states to 11219 states and 29941 transitions. [2018-11-28 11:40:03,587 INFO L78 Accepts]: Start accepts. Automaton has 11219 states and 29941 transitions. Word has length 138 [2018-11-28 11:40:03,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:03,587 INFO L480 AbstractCegarLoop]: Abstraction has 11219 states and 29941 transitions. [2018-11-28 11:40:03,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 11:40:03,588 INFO L276 IsEmpty]: Start isEmpty. Operand 11219 states and 29941 transitions. [2018-11-28 11:40:03,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-28 11:40:03,591 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:03,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:03,592 INFO L423 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:03,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:03,592 INFO L82 PathProgramCache]: Analyzing trace with hash -641800847, now seen corresponding path program 1 times [2018-11-28 11:40:03,592 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:03,592 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:03,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:03,594 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:03,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:04,560 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 11:40:04,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:04,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-11-28 11:40:04,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-28 11:40:04,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-28 11:40:04,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2018-11-28 11:40:04,561 INFO L87 Difference]: Start difference. First operand 11219 states and 29941 transitions. Second operand 26 states. [2018-11-28 11:40:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:06,655 INFO L93 Difference]: Finished difference Result 11245 states and 30007 transitions. [2018-11-28 11:40:06,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-28 11:40:06,656 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 140 [2018-11-28 11:40:06,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:06,666 INFO L225 Difference]: With dead ends: 11245 [2018-11-28 11:40:06,666 INFO L226 Difference]: Without dead ends: 11233 [2018-11-28 11:40:06,667 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=500, Invalid=2152, Unknown=0, NotChecked=0, Total=2652 [2018-11-28 11:40:06,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11233 states. [2018-11-28 11:40:06,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11233 to 11233. [2018-11-28 11:40:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11233 states. [2018-11-28 11:40:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11233 states to 11233 states and 29989 transitions. [2018-11-28 11:40:06,853 INFO L78 Accepts]: Start accepts. Automaton has 11233 states and 29989 transitions. Word has length 140 [2018-11-28 11:40:06,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:06,853 INFO L480 AbstractCegarLoop]: Abstraction has 11233 states and 29989 transitions. [2018-11-28 11:40:06,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-28 11:40:06,853 INFO L276 IsEmpty]: Start isEmpty. Operand 11233 states and 29989 transitions. [2018-11-28 11:40:06,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-28 11:40:06,856 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:06,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:06,857 INFO L423 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:06,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:06,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1476491805, now seen corresponding path program 1 times [2018-11-28 11:40:06,857 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:06,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:06,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:06,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:06,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:07,813 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 11:40:07,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:07,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-11-28 11:40:07,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-11-28 11:40:07,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-11-28 11:40:07,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=693, Unknown=0, NotChecked=0, Total=756 [2018-11-28 11:40:07,814 INFO L87 Difference]: Start difference. First operand 11233 states and 29989 transitions. Second operand 28 states. [2018-11-28 11:40:10,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:10,404 INFO L93 Difference]: Finished difference Result 12859 states and 34337 transitions. [2018-11-28 11:40:10,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-28 11:40:10,405 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 142 [2018-11-28 11:40:10,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:10,417 INFO L225 Difference]: With dead ends: 12859 [2018-11-28 11:40:10,417 INFO L226 Difference]: Without dead ends: 12355 [2018-11-28 11:40:10,418 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=568, Invalid=2402, Unknown=0, NotChecked=0, Total=2970 [2018-11-28 11:40:10,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12355 states. [2018-11-28 11:40:10,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12355 to 10971. [2018-11-28 11:40:10,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10971 states. [2018-11-28 11:40:10,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10971 states to 10971 states and 29359 transitions. [2018-11-28 11:40:10,557 INFO L78 Accepts]: Start accepts. Automaton has 10971 states and 29359 transitions. Word has length 142 [2018-11-28 11:40:10,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:10,557 INFO L480 AbstractCegarLoop]: Abstraction has 10971 states and 29359 transitions. [2018-11-28 11:40:10,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-11-28 11:40:10,558 INFO L276 IsEmpty]: Start isEmpty. Operand 10971 states and 29359 transitions. [2018-11-28 11:40:10,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-28 11:40:10,561 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:10,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:10,561 INFO L423 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:10,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:10,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1135264599, now seen corresponding path program 2 times [2018-11-28 11:40:10,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:10,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:10,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:10,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:10,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:11,609 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 11:40:11,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:11,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-11-28 11:40:11,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-11-28 11:40:11,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-11-28 11:40:11,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-11-28 11:40:11,610 INFO L87 Difference]: Start difference. First operand 10971 states and 29359 transitions. Second operand 28 states. [2018-11-28 11:40:14,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:14,037 INFO L93 Difference]: Finished difference Result 12493 states and 33437 transitions. [2018-11-28 11:40:14,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-28 11:40:14,037 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 142 [2018-11-28 11:40:14,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:14,047 INFO L225 Difference]: With dead ends: 12493 [2018-11-28 11:40:14,047 INFO L226 Difference]: Without dead ends: 12421 [2018-11-28 11:40:14,048 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=571, Invalid=2399, Unknown=0, NotChecked=0, Total=2970 [2018-11-28 11:40:14,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12421 states. [2018-11-28 11:40:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12421 to 10833. [2018-11-28 11:40:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10833 states. [2018-11-28 11:40:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10833 states to 10833 states and 28999 transitions. [2018-11-28 11:40:14,250 INFO L78 Accepts]: Start accepts. Automaton has 10833 states and 28999 transitions. Word has length 142 [2018-11-28 11:40:14,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:14,251 INFO L480 AbstractCegarLoop]: Abstraction has 10833 states and 28999 transitions. [2018-11-28 11:40:14,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-11-28 11:40:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 10833 states and 28999 transitions. [2018-11-28 11:40:14,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-28 11:40:14,253 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:14,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:14,254 INFO L423 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:14,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:14,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1310172623, now seen corresponding path program 3 times [2018-11-28 11:40:14,254 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:14,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:14,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:14,256 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:14,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:15,362 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 11:40:15,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:15,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-11-28 11:40:15,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-11-28 11:40:15,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-11-28 11:40:15,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-11-28 11:40:15,363 INFO L87 Difference]: Start difference. First operand 10833 states and 28999 transitions. Second operand 28 states. [2018-11-28 11:40:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:18,010 INFO L93 Difference]: Finished difference Result 12377 states and 33137 transitions. [2018-11-28 11:40:18,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-28 11:40:18,010 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 142 [2018-11-28 11:40:18,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:18,019 INFO L225 Difference]: With dead ends: 12377 [2018-11-28 11:40:18,019 INFO L226 Difference]: Without dead ends: 12341 [2018-11-28 11:40:18,020 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=618, Invalid=2574, Unknown=0, NotChecked=0, Total=3192 [2018-11-28 11:40:18,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12341 states. [2018-11-28 11:40:18,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12341 to 10787. [2018-11-28 11:40:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10787 states. [2018-11-28 11:40:18,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10787 states to 10787 states and 28879 transitions. [2018-11-28 11:40:18,127 INFO L78 Accepts]: Start accepts. Automaton has 10787 states and 28879 transitions. Word has length 142 [2018-11-28 11:40:18,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:18,127 INFO L480 AbstractCegarLoop]: Abstraction has 10787 states and 28879 transitions. [2018-11-28 11:40:18,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-11-28 11:40:18,127 INFO L276 IsEmpty]: Start isEmpty. Operand 10787 states and 28879 transitions. [2018-11-28 11:40:18,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-28 11:40:18,129 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:18,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:18,129 INFO L423 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:18,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:18,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1018779419, now seen corresponding path program 4 times [2018-11-28 11:40:18,129 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:18,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:18,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:18,131 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:18,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:19,076 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 35 [2018-11-28 11:40:19,671 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 11:40:19,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:19,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2018-11-28 11:40:19,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-28 11:40:19,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-28 11:40:19,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=787, Unknown=0, NotChecked=0, Total=870 [2018-11-28 11:40:19,672 INFO L87 Difference]: Start difference. First operand 10787 states and 28879 transitions. Second operand 30 states. [2018-11-28 11:40:22,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:22,068 INFO L93 Difference]: Finished difference Result 10759 states and 28821 transitions. [2018-11-28 11:40:22,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-28 11:40:22,069 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 142 [2018-11-28 11:40:22,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:22,077 INFO L225 Difference]: With dead ends: 10759 [2018-11-28 11:40:22,077 INFO L226 Difference]: Without dead ends: 10735 [2018-11-28 11:40:22,078 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=524, Invalid=2232, Unknown=0, NotChecked=0, Total=2756 [2018-11-28 11:40:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10735 states. [2018-11-28 11:40:22,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10735 to 10235. [2018-11-28 11:40:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10235 states. [2018-11-28 11:40:22,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10235 states to 10235 states and 27417 transitions. [2018-11-28 11:40:22,180 INFO L78 Accepts]: Start accepts. Automaton has 10235 states and 27417 transitions. Word has length 142 [2018-11-28 11:40:22,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:22,181 INFO L480 AbstractCegarLoop]: Abstraction has 10235 states and 27417 transitions. [2018-11-28 11:40:22,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-11-28 11:40:22,181 INFO L276 IsEmpty]: Start isEmpty. Operand 10235 states and 27417 transitions. [2018-11-28 11:40:22,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-28 11:40:22,186 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:22,187 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:22,187 INFO L423 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:22,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:22,187 INFO L82 PathProgramCache]: Analyzing trace with hash -630852413, now seen corresponding path program 1 times [2018-11-28 11:40:22,187 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:22,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:22,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:22,189 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:22,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:22,252 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 11:40:22,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:22,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:40:22,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:40:22,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:40:22,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:40:22,253 INFO L87 Difference]: Start difference. First operand 10235 states and 27417 transitions. Second operand 3 states. [2018-11-28 11:40:22,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:22,284 INFO L93 Difference]: Finished difference Result 4934 states and 12302 transitions. [2018-11-28 11:40:22,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:40:22,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2018-11-28 11:40:22,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:22,291 INFO L225 Difference]: With dead ends: 4934 [2018-11-28 11:40:22,291 INFO L226 Difference]: Without dead ends: 4934 [2018-11-28 11:40:22,291 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:40:22,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4934 states. [2018-11-28 11:40:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4934 to 4043. [2018-11-28 11:40:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4043 states. [2018-11-28 11:40:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4043 states to 4043 states and 10064 transitions. [2018-11-28 11:40:22,347 INFO L78 Accepts]: Start accepts. Automaton has 4043 states and 10064 transitions. Word has length 208 [2018-11-28 11:40:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:22,347 INFO L480 AbstractCegarLoop]: Abstraction has 4043 states and 10064 transitions. [2018-11-28 11:40:22,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:40:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 4043 states and 10064 transitions. [2018-11-28 11:40:22,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-11-28 11:40:22,354 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:22,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:22,354 INFO L423 AbstractCegarLoop]: === Iteration 16 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:22,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:22,354 INFO L82 PathProgramCache]: Analyzing trace with hash 621909263, now seen corresponding path program 1 times [2018-11-28 11:40:22,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:22,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:22,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:22,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:22,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:23,242 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 34 [2018-11-28 11:40:24,243 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 59 [2018-11-28 11:40:24,401 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 46 [2018-11-28 11:40:24,824 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 48 [2018-11-28 11:40:26,076 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 65 [2018-11-28 11:40:27,910 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 11:40:27,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:27,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2018-11-28 11:40:27,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-11-28 11:40:27,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-11-28 11:40:27,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=2476, Unknown=0, NotChecked=0, Total=2652 [2018-11-28 11:40:27,911 INFO L87 Difference]: Start difference. First operand 4043 states and 10064 transitions. Second operand 52 states. [2018-11-28 11:40:30,709 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2018-11-28 11:40:30,978 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 94 [2018-11-28 11:40:31,215 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 98 [2018-11-28 11:40:31,781 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2018-11-28 11:40:31,968 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 101 [2018-11-28 11:40:32,182 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2018-11-28 11:40:33,075 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2018-11-28 11:40:33,468 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 105 [2018-11-28 11:40:34,343 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 99 [2018-11-28 11:40:34,656 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 127 [2018-11-28 11:40:35,925 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2018-11-28 11:40:36,348 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2018-11-28 11:40:36,524 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2018-11-28 11:40:36,722 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2018-11-28 11:40:36,977 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2018-11-28 11:40:37,256 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 125 [2018-11-28 11:40:37,467 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 110 [2018-11-28 11:40:37,827 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 107 [2018-11-28 11:40:38,133 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 132 [2018-11-28 11:40:38,448 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 139 [2018-11-28 11:40:38,732 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 121 [2018-11-28 11:40:38,959 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 114 [2018-11-28 11:40:39,270 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 144 [2018-11-28 11:40:39,525 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 121 [2018-11-28 11:40:39,805 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 140 [2018-11-28 11:40:40,091 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 128 [2018-11-28 11:40:40,361 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 126 [2018-11-28 11:40:40,621 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2018-11-28 11:40:40,918 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 135 [2018-11-28 11:40:41,166 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 122 [2018-11-28 11:40:41,599 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2018-11-28 11:40:41,841 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 117 [2018-11-28 11:40:42,144 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 136 [2018-11-28 11:40:42,488 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 131 [2018-11-28 11:40:42,871 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 150 [2018-11-28 11:40:43,185 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2018-11-28 11:40:43,490 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 132 [2018-11-28 11:40:43,776 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 121 [2018-11-28 11:40:43,962 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2018-11-28 11:40:44,358 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 146 [2018-11-28 11:40:44,606 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2018-11-28 11:40:44,954 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2018-11-28 11:40:45,333 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2018-11-28 11:40:45,758 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2018-11-28 11:40:45,989 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2018-11-28 11:40:46,299 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2018-11-28 11:40:46,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:46,794 INFO L93 Difference]: Finished difference Result 7145 states and 17900 transitions. [2018-11-28 11:40:46,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-11-28 11:40:46,794 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 209 [2018-11-28 11:40:46,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:46,799 INFO L225 Difference]: With dead ends: 7145 [2018-11-28 11:40:46,799 INFO L226 Difference]: Without dead ends: 7061 [2018-11-28 11:40:46,801 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 2 SyntacticMatches, 10 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4064 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=2224, Invalid=14288, Unknown=0, NotChecked=0, Total=16512 [2018-11-28 11:40:46,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2018-11-28 11:40:46,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 5225. [2018-11-28 11:40:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5225 states. [2018-11-28 11:40:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 12922 transitions. [2018-11-28 11:40:46,870 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 12922 transitions. Word has length 209 [2018-11-28 11:40:46,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:46,870 INFO L480 AbstractCegarLoop]: Abstraction has 5225 states and 12922 transitions. [2018-11-28 11:40:46,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-11-28 11:40:46,870 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 12922 transitions. [2018-11-28 11:40:46,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-11-28 11:40:46,876 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:46,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:46,877 INFO L423 AbstractCegarLoop]: === Iteration 17 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:46,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:46,877 INFO L82 PathProgramCache]: Analyzing trace with hash -455591213, now seen corresponding path program 2 times [2018-11-28 11:40:46,877 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:46,877 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:46,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:46,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:46,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:47,521 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2018-11-28 11:40:48,871 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 11:40:48,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:48,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2018-11-28 11:40:48,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-11-28 11:40:48,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-11-28 11:40:48,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2018-11-28 11:40:48,872 INFO L87 Difference]: Start difference. First operand 5225 states and 12922 transitions. Second operand 31 states. [2018-11-28 11:40:49,846 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2018-11-28 11:40:50,024 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2018-11-28 11:40:52,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:52,097 INFO L93 Difference]: Finished difference Result 5240 states and 12951 transitions. [2018-11-28 11:40:52,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-28 11:40:52,097 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 209 [2018-11-28 11:40:52,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:52,101 INFO L225 Difference]: With dead ends: 5240 [2018-11-28 11:40:52,101 INFO L226 Difference]: Without dead ends: 5240 [2018-11-28 11:40:52,102 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 10 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=604, Invalid=2702, Unknown=0, NotChecked=0, Total=3306 [2018-11-28 11:40:52,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2018-11-28 11:40:52,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 4694. [2018-11-28 11:40:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4694 states. [2018-11-28 11:40:52,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4694 states to 4694 states and 11707 transitions. [2018-11-28 11:40:52,161 INFO L78 Accepts]: Start accepts. Automaton has 4694 states and 11707 transitions. Word has length 209 [2018-11-28 11:40:52,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:52,161 INFO L480 AbstractCegarLoop]: Abstraction has 4694 states and 11707 transitions. [2018-11-28 11:40:52,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-11-28 11:40:52,161 INFO L276 IsEmpty]: Start isEmpty. Operand 4694 states and 11707 transitions. [2018-11-28 11:40:52,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-11-28 11:40:52,167 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:52,167 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:52,167 INFO L423 AbstractCegarLoop]: === Iteration 18 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:52,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:52,168 INFO L82 PathProgramCache]: Analyzing trace with hash 477198580, now seen corresponding path program 1 times [2018-11-28 11:40:52,168 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:52,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:52,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:52,169 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:52,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:54,431 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 11:40:54,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:54,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2018-11-28 11:40:54,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-11-28 11:40:54,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-11-28 11:40:54,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=886, Unknown=0, NotChecked=0, Total=992 [2018-11-28 11:40:54,433 INFO L87 Difference]: Start difference. First operand 4694 states and 11707 transitions. Second operand 32 states. [2018-11-28 11:40:55,370 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2018-11-28 11:40:55,560 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 86 [2018-11-28 11:40:57,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:57,535 INFO L93 Difference]: Finished difference Result 6554 states and 16416 transitions. [2018-11-28 11:40:57,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-11-28 11:40:57,535 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 213 [2018-11-28 11:40:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:40:57,541 INFO L225 Difference]: With dead ends: 6554 [2018-11-28 11:40:57,541 INFO L226 Difference]: Without dead ends: 6554 [2018-11-28 11:40:57,542 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 14 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=839, Invalid=3321, Unknown=0, NotChecked=0, Total=4160 [2018-11-28 11:40:57,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6554 states. [2018-11-28 11:40:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6554 to 6392. [2018-11-28 11:40:57,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6392 states. [2018-11-28 11:40:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6392 states to 6392 states and 16014 transitions. [2018-11-28 11:40:57,608 INFO L78 Accepts]: Start accepts. Automaton has 6392 states and 16014 transitions. Word has length 213 [2018-11-28 11:40:57,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:40:57,609 INFO L480 AbstractCegarLoop]: Abstraction has 6392 states and 16014 transitions. [2018-11-28 11:40:57,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-11-28 11:40:57,609 INFO L276 IsEmpty]: Start isEmpty. Operand 6392 states and 16014 transitions. [2018-11-28 11:40:57,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:40:57,612 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:40:57,612 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:57,613 INFO L423 AbstractCegarLoop]: === Iteration 19 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:40:57,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:57,613 INFO L82 PathProgramCache]: Analyzing trace with hash -2132527911, now seen corresponding path program 1 times [2018-11-28 11:40:57,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:57,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:57,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:57,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:57,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:59,402 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 52 [2018-11-28 11:41:01,350 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 58 [2018-11-28 11:41:02,673 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 11:41:02,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:41:02,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2018-11-28 11:41:02,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-11-28 11:41:02,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-11-28 11:41:02,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=2159, Unknown=0, NotChecked=0, Total=2352 [2018-11-28 11:41:02,674 INFO L87 Difference]: Start difference. First operand 6392 states and 16014 transitions. Second operand 49 states. [2018-11-28 11:41:04,831 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 78 [2018-11-28 11:41:05,066 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 80 [2018-11-28 11:41:05,315 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 89 [2018-11-28 11:41:05,573 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 83 [2018-11-28 11:41:05,801 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 85 [2018-11-28 11:41:06,010 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 94 [2018-11-28 11:41:09,727 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2018-11-28 11:41:10,127 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 96 [2018-11-28 11:41:10,321 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 102 [2018-11-28 11:41:10,478 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2018-11-28 11:41:10,796 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 108 [2018-11-28 11:41:10,951 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2018-11-28 11:41:11,125 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2018-11-28 11:41:11,294 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 101 [2018-11-28 11:41:11,454 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2018-11-28 11:41:11,601 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2018-11-28 11:41:11,778 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 107 [2018-11-28 11:41:11,928 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2018-11-28 11:41:12,151 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2018-11-28 11:41:12,289 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2018-11-28 11:41:12,476 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2018-11-28 11:41:12,672 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2018-11-28 11:41:13,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:41:13,316 INFO L93 Difference]: Finished difference Result 10907 states and 27285 transitions. [2018-11-28 11:41:13,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-11-28 11:41:13,317 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 217 [2018-11-28 11:41:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:41:13,323 INFO L225 Difference]: With dead ends: 10907 [2018-11-28 11:41:13,323 INFO L226 Difference]: Without dead ends: 10571 [2018-11-28 11:41:13,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 3 SyntacticMatches, 11 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3432 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=1883, Invalid=10999, Unknown=0, NotChecked=0, Total=12882 [2018-11-28 11:41:13,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10571 states. [2018-11-28 11:41:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10571 to 7454. [2018-11-28 11:41:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7454 states. [2018-11-28 11:41:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 18529 transitions. [2018-11-28 11:41:13,390 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 18529 transitions. Word has length 217 [2018-11-28 11:41:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:41:13,390 INFO L480 AbstractCegarLoop]: Abstraction has 7454 states and 18529 transitions. [2018-11-28 11:41:13,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-11-28 11:41:13,390 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 18529 transitions. [2018-11-28 11:41:13,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:41:13,395 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:41:13,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:13,395 INFO L423 AbstractCegarLoop]: === Iteration 20 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:41:13,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:41:13,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1164257635, now seen corresponding path program 2 times [2018-11-28 11:41:13,395 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:41:13,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:41:13,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:41:13,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:41:13,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:41:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:41:14,645 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 44 [2018-11-28 11:41:14,904 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 51 [2018-11-28 11:41:15,063 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 43 [2018-11-28 11:41:15,270 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 50 [2018-11-28 11:41:15,467 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 42 [2018-11-28 11:41:15,649 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 46 [2018-11-28 11:41:16,453 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 52 [2018-11-28 11:41:16,611 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 50 [2018-11-28 11:41:17,957 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 11:41:17,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:41:17,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-28 11:41:17,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-28 11:41:17,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-28 11:41:17,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1978, Unknown=0, NotChecked=0, Total=2162 [2018-11-28 11:41:17,959 INFO L87 Difference]: Start difference. First operand 7454 states and 18529 transitions. Second operand 47 states. [2018-11-28 11:41:20,294 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2018-11-28 11:41:20,533 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 78 [2018-11-28 11:41:20,746 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 76 [2018-11-28 11:41:21,130 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 85 [2018-11-28 11:41:21,303 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2018-11-28 11:41:21,703 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 85 [2018-11-28 11:41:21,903 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 89 [2018-11-28 11:41:22,649 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2018-11-28 11:41:22,872 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2018-11-28 11:41:23,139 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 78 [2018-11-28 11:41:23,840 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 72 [2018-11-28 11:41:24,100 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 92 [2018-11-28 11:41:25,246 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2018-11-28 11:41:25,424 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2018-11-28 11:41:25,603 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2018-11-28 11:41:25,833 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2018-11-28 11:41:26,010 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2018-11-28 11:41:26,238 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 108 [2018-11-28 11:41:26,452 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2018-11-28 11:41:26,695 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2018-11-28 11:41:26,970 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2018-11-28 11:41:27,178 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2018-11-28 11:41:27,422 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2018-11-28 11:41:27,627 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2018-11-28 11:41:28,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:41:28,567 INFO L93 Difference]: Finished difference Result 9914 states and 24662 transitions. [2018-11-28 11:41:28,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-11-28 11:41:28,567 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 217 [2018-11-28 11:41:28,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:41:28,575 INFO L225 Difference]: With dead ends: 9914 [2018-11-28 11:41:28,575 INFO L226 Difference]: Without dead ends: 9578 [2018-11-28 11:41:28,576 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 4 SyntacticMatches, 10 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3006 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=1519, Invalid=9401, Unknown=0, NotChecked=0, Total=10920 [2018-11-28 11:41:28,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2018-11-28 11:41:28,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 7454. [2018-11-28 11:41:28,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7454 states. [2018-11-28 11:41:28,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 18529 transitions. [2018-11-28 11:41:28,651 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 18529 transitions. Word has length 217 [2018-11-28 11:41:28,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:41:28,651 INFO L480 AbstractCegarLoop]: Abstraction has 7454 states and 18529 transitions. [2018-11-28 11:41:28,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-28 11:41:28,651 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 18529 transitions. [2018-11-28 11:41:28,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:41:28,656 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:41:28,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:28,657 INFO L423 AbstractCegarLoop]: === Iteration 21 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:41:28,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:41:28,657 INFO L82 PathProgramCache]: Analyzing trace with hash -57434447, now seen corresponding path program 3 times [2018-11-28 11:41:28,657 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:41:28,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:41:28,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:41:28,658 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:41:28,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:41:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:41:29,927 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2018-11-28 11:41:30,371 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 40 [2018-11-28 11:41:30,511 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 43 [2018-11-28 11:41:30,688 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 45 [2018-11-28 11:41:30,964 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 54 [2018-11-28 11:41:31,244 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 61 [2018-11-28 11:41:31,685 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 62 [2018-11-28 11:41:31,925 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 63 [2018-11-28 11:41:32,160 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 60 [2018-11-28 11:41:32,419 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 56 [2018-11-28 11:41:32,643 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 56 [2018-11-28 11:41:32,877 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 56 [2018-11-28 11:41:33,156 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 60 [2018-11-28 11:41:33,489 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 59 [2018-11-28 11:41:33,863 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 63 [2018-11-28 11:41:34,222 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 62 [2018-11-28 11:41:34,636 WARN L180 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 67 [2018-11-28 11:41:34,871 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 50 [2018-11-28 11:41:35,309 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 51 [2018-11-28 11:41:35,481 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 43 [2018-11-28 11:41:37,068 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 11:41:37,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:41:37,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-28 11:41:37,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-28 11:41:37,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-28 11:41:37,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1978, Unknown=0, NotChecked=0, Total=2162 [2018-11-28 11:41:37,069 INFO L87 Difference]: Start difference. First operand 7454 states and 18529 transitions. Second operand 47 states. [2018-11-28 11:41:39,316 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 73 [2018-11-28 11:41:39,489 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 83 [2018-11-28 11:41:39,700 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 85 [2018-11-28 11:41:39,959 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 102 [2018-11-28 11:41:40,190 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 100 [2018-11-28 11:41:40,668 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 111 [2018-11-28 11:41:41,031 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 123 [2018-11-28 11:41:41,403 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 112 [2018-11-28 11:41:41,697 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 100 [2018-11-28 11:41:41,959 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2018-11-28 11:41:42,354 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 114 [2018-11-28 11:41:42,548 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 102 [2018-11-28 11:41:43,058 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 97 [2018-11-28 11:41:43,349 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 99 [2018-11-28 11:41:43,670 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 101 [2018-11-28 11:41:44,045 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 103 [2018-11-28 11:41:44,563 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85 [2018-11-28 11:41:44,847 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 89 [2018-11-28 11:41:45,211 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 93 [2018-11-28 11:41:45,607 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 107 [2018-11-28 11:41:45,808 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2018-11-28 11:41:46,606 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2018-11-28 11:41:46,807 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2018-11-28 11:41:47,058 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2018-11-28 11:41:47,318 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2018-11-28 11:41:47,565 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2018-11-28 11:41:47,884 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 132 [2018-11-28 11:41:48,138 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 118 [2018-11-28 11:41:48,449 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 140 [2018-11-28 11:41:48,723 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 126 [2018-11-28 11:41:48,991 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 128 [2018-11-28 11:41:49,295 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 134 [2018-11-28 11:41:49,561 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 120 [2018-11-28 11:41:49,923 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2018-11-28 11:41:50,263 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2018-11-28 11:41:50,970 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2018-11-28 11:41:51,191 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2018-11-28 11:41:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:41:51,496 INFO L93 Difference]: Finished difference Result 11057 states and 27545 transitions. [2018-11-28 11:41:51,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-11-28 11:41:51,496 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 217 [2018-11-28 11:41:51,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:41:51,504 INFO L225 Difference]: With dead ends: 11057 [2018-11-28 11:41:51,504 INFO L226 Difference]: Without dead ends: 10721 [2018-11-28 11:41:51,504 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 4 SyntacticMatches, 9 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2367 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=1458, Invalid=8442, Unknown=0, NotChecked=0, Total=9900 [2018-11-28 11:41:51,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2018-11-28 11:41:51,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 7454. [2018-11-28 11:41:51,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7454 states. [2018-11-28 11:41:51,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 18529 transitions. [2018-11-28 11:41:51,585 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 18529 transitions. Word has length 217 [2018-11-28 11:41:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:41:51,585 INFO L480 AbstractCegarLoop]: Abstraction has 7454 states and 18529 transitions. [2018-11-28 11:41:51,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-28 11:41:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 18529 transitions. [2018-11-28 11:41:51,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:41:51,590 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:41:51,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:51,591 INFO L423 AbstractCegarLoop]: === Iteration 22 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:41:51,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:41:51,591 INFO L82 PathProgramCache]: Analyzing trace with hash -656075653, now seen corresponding path program 4 times [2018-11-28 11:41:51,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:41:51,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:41:51,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:41:51,592 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:41:51,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:41:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:41:55,353 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 11:41:55,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:41:55,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2018-11-28 11:41:55,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-11-28 11:41:55,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-11-28 11:41:55,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1808, Unknown=0, NotChecked=0, Total=1980 [2018-11-28 11:41:55,354 INFO L87 Difference]: Start difference. First operand 7454 states and 18529 transitions. Second operand 45 states. [2018-11-28 11:41:57,336 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 79 [2018-11-28 11:41:57,553 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 81 [2018-11-28 11:41:57,852 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2018-11-28 11:41:58,115 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 87 [2018-11-28 11:41:58,647 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 89 [2018-11-28 11:41:58,961 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 96 [2018-11-28 11:41:59,205 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2018-11-28 11:42:00,187 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2018-11-28 11:42:00,599 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 79 [2018-11-28 11:42:00,877 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2018-11-28 11:42:01,245 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 84 [2018-11-28 11:42:02,196 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 76 [2018-11-28 11:42:02,446 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 78 [2018-11-28 11:42:03,501 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2018-11-28 11:42:03,702 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2018-11-28 11:42:03,904 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2018-11-28 11:42:04,171 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2018-11-28 11:42:04,353 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 96 [2018-11-28 11:42:04,596 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 120 [2018-11-28 11:42:04,786 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 105 [2018-11-28 11:42:04,997 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2018-11-28 11:42:05,220 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 114 [2018-11-28 11:42:05,398 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2018-11-28 11:42:05,608 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2018-11-28 11:42:05,812 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2018-11-28 11:42:06,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:42:06,828 INFO L93 Difference]: Finished difference Result 11502 states and 28722 transitions. [2018-11-28 11:42:06,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-11-28 11:42:06,828 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 217 [2018-11-28 11:42:06,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:42:06,836 INFO L225 Difference]: With dead ends: 11502 [2018-11-28 11:42:06,836 INFO L226 Difference]: Without dead ends: 11166 [2018-11-28 11:42:06,837 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 3 SyntacticMatches, 12 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2713 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=1381, Invalid=8519, Unknown=0, NotChecked=0, Total=9900 [2018-11-28 11:42:06,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2018-11-28 11:42:06,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 7614. [2018-11-28 11:42:06,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7614 states. [2018-11-28 11:42:06,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7614 states to 7614 states and 18945 transitions. [2018-11-28 11:42:06,928 INFO L78 Accepts]: Start accepts. Automaton has 7614 states and 18945 transitions. Word has length 217 [2018-11-28 11:42:06,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:42:06,929 INFO L480 AbstractCegarLoop]: Abstraction has 7614 states and 18945 transitions. [2018-11-28 11:42:06,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-11-28 11:42:06,929 INFO L276 IsEmpty]: Start isEmpty. Operand 7614 states and 18945 transitions. [2018-11-28 11:42:06,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:42:06,932 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:42:06,933 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:06,933 INFO L423 AbstractCegarLoop]: === Iteration 23 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:42:06,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:42:06,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1519500477, now seen corresponding path program 5 times [2018-11-28 11:42:06,933 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:42:06,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:42:06,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:06,934 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:42:06,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:42:09,234 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 50 [2018-11-28 11:42:09,487 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 60 [2018-11-28 11:42:11,127 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 11:42:11,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:42:11,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2018-11-28 11:42:11,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-11-28 11:42:11,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-11-28 11:42:11,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2018-11-28 11:42:11,129 INFO L87 Difference]: Start difference. First operand 7614 states and 18945 transitions. Second operand 48 states. [2018-11-28 11:42:13,619 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 75 [2018-11-28 11:42:13,839 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2018-11-28 11:42:14,133 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2018-11-28 11:42:14,358 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2018-11-28 11:42:14,837 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2018-11-28 11:42:15,075 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 92 [2018-11-28 11:42:16,360 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 77 [2018-11-28 11:42:16,791 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2018-11-28 11:42:17,103 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81 [2018-11-28 11:42:17,433 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2018-11-28 11:42:17,786 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2018-11-28 11:42:19,106 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 76 [2018-11-28 11:42:19,768 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 84 [2018-11-28 11:42:20,839 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2018-11-28 11:42:21,045 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2018-11-28 11:42:21,255 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2018-11-28 11:42:21,546 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2018-11-28 11:42:21,764 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2018-11-28 11:42:22,079 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 125 [2018-11-28 11:42:22,309 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2018-11-28 11:42:22,551 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 120 [2018-11-28 11:42:22,782 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 113 [2018-11-28 11:42:23,001 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 111 [2018-11-28 11:42:23,219 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 107 [2018-11-28 11:42:23,437 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2018-11-28 11:42:24,269 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2018-11-28 11:42:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:42:24,598 INFO L93 Difference]: Finished difference Result 12102 states and 30187 transitions. [2018-11-28 11:42:24,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-11-28 11:42:24,598 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 217 [2018-11-28 11:42:24,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:42:24,606 INFO L225 Difference]: With dead ends: 12102 [2018-11-28 11:42:24,606 INFO L226 Difference]: Without dead ends: 11766 [2018-11-28 11:42:24,607 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 3 SyntacticMatches, 10 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3155 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=1675, Invalid=10981, Unknown=0, NotChecked=0, Total=12656 [2018-11-28 11:42:24,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11766 states. [2018-11-28 11:42:24,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11766 to 7694. [2018-11-28 11:42:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7694 states. [2018-11-28 11:42:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 19163 transitions. [2018-11-28 11:42:24,682 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 19163 transitions. Word has length 217 [2018-11-28 11:42:24,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:42:24,682 INFO L480 AbstractCegarLoop]: Abstraction has 7694 states and 19163 transitions. [2018-11-28 11:42:24,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-11-28 11:42:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 19163 transitions. [2018-11-28 11:42:24,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:42:24,687 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:42:24,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:24,687 INFO L423 AbstractCegarLoop]: === Iteration 24 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:42:24,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:42:24,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1643163205, now seen corresponding path program 6 times [2018-11-28 11:42:24,687 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:42:24,687 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:42:24,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:24,688 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:42:24,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:42:28,551 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 11:42:28,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:42:28,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-28 11:42:28,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-28 11:42:28,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-28 11:42:28,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1996, Unknown=0, NotChecked=0, Total=2162 [2018-11-28 11:42:28,552 INFO L87 Difference]: Start difference. First operand 7694 states and 19163 transitions. Second operand 47 states. [2018-11-28 11:42:31,154 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2018-11-28 11:42:31,551 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2018-11-28 11:42:31,724 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 67 [2018-11-28 11:42:31,943 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 91 [2018-11-28 11:42:32,287 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 89 [2018-11-28 11:42:32,478 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2018-11-28 11:42:32,693 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2018-11-28 11:42:33,032 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 91 [2018-11-28 11:42:33,250 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 98 [2018-11-28 11:42:33,420 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2018-11-28 11:42:33,763 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2018-11-28 11:42:34,688 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 76 [2018-11-28 11:42:35,616 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 83 [2018-11-28 11:42:35,926 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 88 [2018-11-28 11:42:37,395 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 85 [2018-11-28 11:42:38,814 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2018-11-28 11:42:39,131 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2018-11-28 11:42:39,305 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2018-11-28 11:42:39,542 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2018-11-28 11:42:39,716 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2018-11-28 11:42:39,947 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 118 [2018-11-28 11:42:40,115 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2018-11-28 11:42:40,304 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 101 [2018-11-28 11:42:40,517 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2018-11-28 11:42:40,735 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2018-11-28 11:42:40,911 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2018-11-28 11:42:41,093 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2018-11-28 11:42:41,300 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2018-11-28 11:42:41,525 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 117 [2018-11-28 11:42:41,718 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2018-11-28 11:42:41,956 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 125 [2018-11-28 11:42:42,227 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2018-11-28 11:42:42,431 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2018-11-28 11:42:43,180 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2018-11-28 11:42:43,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:42:43,464 INFO L93 Difference]: Finished difference Result 12036 states and 30032 transitions. [2018-11-28 11:42:43,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-11-28 11:42:43,465 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 217 [2018-11-28 11:42:43,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:42:43,474 INFO L225 Difference]: With dead ends: 12036 [2018-11-28 11:42:43,474 INFO L226 Difference]: Without dead ends: 11700 [2018-11-28 11:42:43,475 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 4 SyntacticMatches, 10 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3981 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=2113, Invalid=13387, Unknown=0, NotChecked=0, Total=15500 [2018-11-28 11:42:43,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11700 states. [2018-11-28 11:42:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11700 to 7724. [2018-11-28 11:42:43,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7724 states. [2018-11-28 11:42:43,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7724 states to 7724 states and 19241 transitions. [2018-11-28 11:42:43,571 INFO L78 Accepts]: Start accepts. Automaton has 7724 states and 19241 transitions. Word has length 217 [2018-11-28 11:42:43,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:42:43,571 INFO L480 AbstractCegarLoop]: Abstraction has 7724 states and 19241 transitions. [2018-11-28 11:42:43,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-28 11:42:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand 7724 states and 19241 transitions. [2018-11-28 11:42:43,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:42:43,579 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:42:43,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:43,580 INFO L423 AbstractCegarLoop]: === Iteration 25 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:42:43,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:42:43,580 INFO L82 PathProgramCache]: Analyzing trace with hash 864393433, now seen corresponding path program 7 times [2018-11-28 11:42:43,580 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:42:43,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:42:43,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:43,582 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:42:43,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:42:47,478 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 11:42:47,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:42:47,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2018-11-28 11:42:47,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-11-28 11:42:47,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-11-28 11:42:47,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1810, Unknown=0, NotChecked=0, Total=1980 [2018-11-28 11:42:47,479 INFO L87 Difference]: Start difference. First operand 7724 states and 19241 transitions. Second operand 45 states. [2018-11-28 11:42:49,373 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 77 [2018-11-28 11:42:49,541 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2018-11-28 11:42:49,918 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2018-11-28 11:42:50,085 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2018-11-28 11:42:52,088 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2018-11-28 11:42:53,383 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2018-11-28 11:42:53,637 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2018-11-28 11:42:54,297 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 90 [2018-11-28 11:42:55,209 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2018-11-28 11:42:55,560 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2018-11-28 11:42:55,794 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 116 [2018-11-28 11:42:55,960 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-11-28 11:42:56,197 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2018-11-28 11:42:56,380 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2018-11-28 11:42:56,595 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2018-11-28 11:42:56,801 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2018-11-28 11:42:56,969 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2018-11-28 11:42:57,149 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2018-11-28 11:42:57,329 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-11-28 11:42:58,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:42:58,079 INFO L93 Difference]: Finished difference Result 12849 states and 32101 transitions. [2018-11-28 11:42:58,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-11-28 11:42:58,079 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 217 [2018-11-28 11:42:58,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:42:58,089 INFO L225 Difference]: With dead ends: 12849 [2018-11-28 11:42:58,089 INFO L226 Difference]: Without dead ends: 12513 [2018-11-28 11:42:58,089 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 3 SyntacticMatches, 11 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3228 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=1285, Invalid=9635, Unknown=0, NotChecked=0, Total=10920 [2018-11-28 11:42:58,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12513 states. [2018-11-28 11:42:58,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12513 to 7744. [2018-11-28 11:42:58,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7744 states. [2018-11-28 11:42:58,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7744 states to 7744 states and 19293 transitions. [2018-11-28 11:42:58,182 INFO L78 Accepts]: Start accepts. Automaton has 7744 states and 19293 transitions. Word has length 217 [2018-11-28 11:42:58,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:42:58,182 INFO L480 AbstractCegarLoop]: Abstraction has 7744 states and 19293 transitions. [2018-11-28 11:42:58,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-11-28 11:42:58,183 INFO L276 IsEmpty]: Start isEmpty. Operand 7744 states and 19293 transitions. [2018-11-28 11:42:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:42:58,187 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:42:58,187 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:58,187 INFO L423 AbstractCegarLoop]: === Iteration 26 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:42:58,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:42:58,188 INFO L82 PathProgramCache]: Analyzing trace with hash -120939495, now seen corresponding path program 8 times [2018-11-28 11:42:58,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:42:58,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:42:58,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:58,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:42:58,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:43:01,977 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 11:43:01,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:43:01,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-28 11:43:01,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-28 11:43:01,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-28 11:43:01,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1991, Unknown=0, NotChecked=0, Total=2162 [2018-11-28 11:43:01,978 INFO L87 Difference]: Start difference. First operand 7744 states and 19293 transitions. Second operand 47 states. [2018-11-28 11:43:04,318 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 70 [2018-11-28 11:43:04,557 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2018-11-28 11:43:04,796 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 79 [2018-11-28 11:43:05,006 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2018-11-28 11:43:05,455 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2018-11-28 11:43:05,691 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 86 [2018-11-28 11:43:07,494 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 81 [2018-11-28 11:43:07,777 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2018-11-28 11:43:08,102 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 83 [2018-11-28 11:43:09,229 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 75 [2018-11-28 11:43:10,007 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 77 [2018-11-28 11:43:11,131 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-11-28 11:43:11,316 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2018-11-28 11:43:11,486 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2018-11-28 11:43:11,715 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 109 [2018-11-28 11:43:11,885 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 94 [2018-11-28 11:43:12,108 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 118 [2018-11-28 11:43:12,294 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 103 [2018-11-28 11:43:12,500 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2018-11-28 11:43:12,721 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2018-11-28 11:43:12,894 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2018-11-28 11:43:13,098 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2018-11-28 11:43:13,315 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2018-11-28 11:43:14,164 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2018-11-28 11:43:14,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:43:14,490 INFO L93 Difference]: Finished difference Result 12204 states and 30480 transitions. [2018-11-28 11:43:14,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-11-28 11:43:14,490 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 217 [2018-11-28 11:43:14,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:43:14,497 INFO L225 Difference]: With dead ends: 12204 [2018-11-28 11:43:14,497 INFO L226 Difference]: Without dead ends: 11868 [2018-11-28 11:43:14,497 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 4 SyntacticMatches, 10 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3394 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1633, Invalid=10577, Unknown=0, NotChecked=0, Total=12210 [2018-11-28 11:43:14,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11868 states. [2018-11-28 11:43:14,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11868 to 7874. [2018-11-28 11:43:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7874 states. [2018-11-28 11:43:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7874 states to 7874 states and 19631 transitions. [2018-11-28 11:43:14,574 INFO L78 Accepts]: Start accepts. Automaton has 7874 states and 19631 transitions. Word has length 217 [2018-11-28 11:43:14,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:43:14,575 INFO L480 AbstractCegarLoop]: Abstraction has 7874 states and 19631 transitions. [2018-11-28 11:43:14,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-28 11:43:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 7874 states and 19631 transitions. [2018-11-28 11:43:14,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:43:14,579 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:43:14,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:14,580 INFO L423 AbstractCegarLoop]: === Iteration 27 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:43:14,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:43:14,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1865198815, now seen corresponding path program 9 times [2018-11-28 11:43:14,580 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:43:14,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:43:14,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:43:14,581 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:43:14,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:43:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:43:15,466 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2018-11-28 11:43:15,615 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 47 [2018-11-28 11:43:15,756 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 47 [2018-11-28 11:43:15,954 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 53 [2018-11-28 11:43:16,102 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 49 [2018-11-28 11:43:16,243 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 47 [2018-11-28 11:43:16,417 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 51 [2018-11-28 11:43:16,566 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 50 [2018-11-28 11:43:16,717 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 48 [2018-11-28 11:43:16,903 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 51 [2018-11-28 11:43:17,795 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 54 [2018-11-28 11:43:18,021 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 53 [2018-11-28 11:43:18,222 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 46 [2018-11-28 11:43:18,407 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 43 [2018-11-28 11:43:18,606 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 49 [2018-11-28 11:43:18,800 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 42 [2018-11-28 11:43:19,170 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 45 [2018-11-28 11:43:19,452 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 36 [2018-11-28 11:43:20,522 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 11:43:20,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:43:20,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2018-11-28 11:43:20,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-11-28 11:43:20,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-11-28 11:43:20,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=2363, Unknown=0, NotChecked=0, Total=2550 [2018-11-28 11:43:20,523 INFO L87 Difference]: Start difference. First operand 7874 states and 19631 transitions. Second operand 51 states. [2018-11-28 11:43:22,821 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2018-11-28 11:43:23,054 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2018-11-28 11:43:23,331 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 83 [2018-11-28 11:43:23,571 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2018-11-28 11:43:23,846 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2018-11-28 11:43:24,152 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2018-11-28 11:43:24,414 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 71 [2018-11-28 11:43:25,472 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 85 [2018-11-28 11:43:25,665 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2018-11-28 11:43:26,205 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2018-11-28 11:43:26,385 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2018-11-28 11:43:26,682 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 86 [2018-11-28 11:43:26,925 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2018-11-28 11:43:27,151 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 89 [2018-11-28 11:43:27,479 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 89 [2018-11-28 11:43:27,815 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 88 [2018-11-28 11:43:28,185 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 91 [2018-11-28 11:43:28,981 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 80 [2018-11-28 11:43:29,495 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 105 [2018-11-28 11:43:29,688 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 79 [2018-11-28 11:43:30,017 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2018-11-28 11:43:30,540 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 84 [2018-11-28 11:43:31,145 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 108 [2018-11-28 11:43:31,652 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 92 [2018-11-28 11:43:33,734 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 100 [2018-11-28 11:43:33,940 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2018-11-28 11:43:34,135 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2018-11-28 11:43:34,396 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2018-11-28 11:43:34,582 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2018-11-28 11:43:34,857 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 122 [2018-11-28 11:43:35,062 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 107 [2018-11-28 11:43:35,296 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 118 [2018-11-28 11:43:35,533 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 116 [2018-11-28 11:43:35,738 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 109 [2018-11-28 11:43:35,974 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2018-11-28 11:43:36,231 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2018-11-28 11:43:37,092 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2018-11-28 11:43:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:43:37,475 INFO L93 Difference]: Finished difference Result 14013 states and 35098 transitions. [2018-11-28 11:43:37,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-11-28 11:43:37,476 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 217 [2018-11-28 11:43:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:43:37,487 INFO L225 Difference]: With dead ends: 14013 [2018-11-28 11:43:37,487 INFO L226 Difference]: Without dead ends: 13677 [2018-11-28 11:43:37,488 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 3 SyntacticMatches, 7 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4202 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=2088, Invalid=14168, Unknown=0, NotChecked=0, Total=16256 [2018-11-28 11:43:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13677 states. [2018-11-28 11:43:37,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13677 to 7994. [2018-11-28 11:43:37,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7994 states. [2018-11-28 11:43:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 19943 transitions. [2018-11-28 11:43:37,589 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 19943 transitions. Word has length 217 [2018-11-28 11:43:37,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:43:37,590 INFO L480 AbstractCegarLoop]: Abstraction has 7994 states and 19943 transitions. [2018-11-28 11:43:37,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-11-28 11:43:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 19943 transitions. [2018-11-28 11:43:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:43:37,596 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:43:37,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:37,596 INFO L423 AbstractCegarLoop]: === Iteration 28 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:43:37,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:43:37,597 INFO L82 PathProgramCache]: Analyzing trace with hash -172255563, now seen corresponding path program 10 times [2018-11-28 11:43:37,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:43:37,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:43:37,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:43:37,598 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:43:37,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:43:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:43:38,775 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 44 [2018-11-28 11:43:39,025 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 42 [2018-11-28 11:43:39,167 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 46 [2018-11-28 11:43:40,443 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 59 [2018-11-28 11:43:40,814 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 48 [2018-11-28 11:43:42,025 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 11:43:42,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:43:42,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2018-11-28 11:43:42,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-11-28 11:43:42,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-11-28 11:43:42,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=2076, Unknown=0, NotChecked=0, Total=2256 [2018-11-28 11:43:42,026 INFO L87 Difference]: Start difference. First operand 7994 states and 19943 transitions. Second operand 48 states. [2018-11-28 11:43:44,584 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2018-11-28 11:43:44,792 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2018-11-28 11:43:45,040 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 79 [2018-11-28 11:43:45,261 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2018-11-28 11:43:45,720 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2018-11-28 11:43:45,954 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2018-11-28 11:43:46,606 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 88 [2018-11-28 11:43:46,895 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 70 [2018-11-28 11:43:47,810 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2018-11-28 11:43:48,111 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2018-11-28 11:43:48,893 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 75 [2018-11-28 11:43:49,167 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 76 [2018-11-28 11:43:49,892 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 84 [2018-11-28 11:43:50,991 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2018-11-28 11:43:51,195 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2018-11-28 11:43:51,404 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 107 [2018-11-28 11:43:51,677 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 116 [2018-11-28 11:43:51,866 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 95 [2018-11-28 11:43:52,138 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 125 [2018-11-28 11:43:52,338 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 104 [2018-11-28 11:43:52,583 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 120 [2018-11-28 11:43:52,815 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 113 [2018-11-28 11:43:53,046 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 111 [2018-11-28 11:43:53,262 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 107 [2018-11-28 11:43:53,478 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2018-11-28 11:43:54,298 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2018-11-28 11:43:54,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:43:54,648 INFO L93 Difference]: Finished difference Result 10382 states and 25920 transitions. [2018-11-28 11:43:54,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-11-28 11:43:54,648 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 217 [2018-11-28 11:43:54,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:43:54,655 INFO L225 Difference]: With dead ends: 10382 [2018-11-28 11:43:54,655 INFO L226 Difference]: Without dead ends: 10046 [2018-11-28 11:43:54,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 3 SyntacticMatches, 10 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3056 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=1621, Invalid=10589, Unknown=0, NotChecked=0, Total=12210 [2018-11-28 11:43:54,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10046 states. [2018-11-28 11:43:54,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10046 to 7994. [2018-11-28 11:43:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7994 states. [2018-11-28 11:43:54,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 19943 transitions. [2018-11-28 11:43:54,724 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 19943 transitions. Word has length 217 [2018-11-28 11:43:54,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:43:54,725 INFO L480 AbstractCegarLoop]: Abstraction has 7994 states and 19943 transitions. [2018-11-28 11:43:54,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-11-28 11:43:54,725 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 19943 transitions. [2018-11-28 11:43:54,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:43:54,729 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:43:54,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:54,729 INFO L423 AbstractCegarLoop]: === Iteration 29 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:43:54,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:43:54,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1083938987, now seen corresponding path program 11 times [2018-11-28 11:43:54,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:43:54,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:43:54,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:43:54,730 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:43:54,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:43:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:43:57,141 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 59 [2018-11-28 11:43:58,600 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 11:43:58,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:43:58,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2018-11-28 11:43:58,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-11-28 11:43:58,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-11-28 11:43:58,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1720, Unknown=0, NotChecked=0, Total=1892 [2018-11-28 11:43:58,601 INFO L87 Difference]: Start difference. First operand 7994 states and 19943 transitions. Second operand 44 states. [2018-11-28 11:44:00,415 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 72 [2018-11-28 11:44:00,654 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2018-11-28 11:44:00,860 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 77 [2018-11-28 11:44:01,321 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 79 [2018-11-28 11:44:01,758 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2018-11-28 11:44:01,976 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2018-11-28 11:44:02,265 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2018-11-28 11:44:02,912 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2018-11-28 11:44:03,119 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 82 [2018-11-28 11:44:03,386 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 86 [2018-11-28 11:44:04,243 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2018-11-28 11:44:04,703 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 81 [2018-11-28 11:44:04,882 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 88 [2018-11-28 11:44:05,908 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2018-11-28 11:44:06,103 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2018-11-28 11:44:06,303 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2018-11-28 11:44:06,557 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 121 [2018-11-28 11:44:06,746 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 100 [2018-11-28 11:44:07,024 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 130 [2018-11-28 11:44:07,222 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 109 [2018-11-28 11:44:07,461 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 125 [2018-11-28 11:44:07,688 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 118 [2018-11-28 11:44:07,891 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2018-11-28 11:44:08,105 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 112 [2018-11-28 11:44:08,314 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 103 [2018-11-28 11:44:09,071 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2018-11-28 11:44:09,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:09,359 INFO L93 Difference]: Finished difference Result 11351 states and 28345 transitions. [2018-11-28 11:44:09,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-11-28 11:44:09,359 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 217 [2018-11-28 11:44:09,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:09,366 INFO L225 Difference]: With dead ends: 11351 [2018-11-28 11:44:09,366 INFO L226 Difference]: Without dead ends: 11015 [2018-11-28 11:44:09,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 3 SyntacticMatches, 11 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2485 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1493, Invalid=8209, Unknown=0, NotChecked=0, Total=9702 [2018-11-28 11:44:09,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11015 states. [2018-11-28 11:44:09,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11015 to 7994. [2018-11-28 11:44:09,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7994 states. [2018-11-28 11:44:09,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 19943 transitions. [2018-11-28 11:44:09,437 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 19943 transitions. Word has length 217 [2018-11-28 11:44:09,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:44:09,438 INFO L480 AbstractCegarLoop]: Abstraction has 7994 states and 19943 transitions. [2018-11-28 11:44:09,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-11-28 11:44:09,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 19943 transitions. [2018-11-28 11:44:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:44:09,442 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:44:09,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:09,442 INFO L423 AbstractCegarLoop]: === Iteration 30 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:44:09,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:44:09,442 INFO L82 PathProgramCache]: Analyzing trace with hash -634169247, now seen corresponding path program 12 times [2018-11-28 11:44:09,442 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:44:09,442 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:44:09,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:09,443 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:44:09,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:12,199 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 58 [2018-11-28 11:44:12,743 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 51 [2018-11-28 11:44:14,010 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 11:44:14,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:44:14,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2018-11-28 11:44:14,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-11-28 11:44:14,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-11-28 11:44:14,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=2068, Unknown=0, NotChecked=0, Total=2256 [2018-11-28 11:44:14,011 INFO L87 Difference]: Start difference. First operand 7994 states and 19943 transitions. Second operand 48 states. [2018-11-28 11:44:16,539 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 77 [2018-11-28 11:44:16,920 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 79 [2018-11-28 11:44:17,135 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 85 [2018-11-28 11:44:17,347 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2018-11-28 11:44:17,752 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2018-11-28 11:44:17,957 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 87 [2018-11-28 11:44:18,720 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2018-11-28 11:44:18,919 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 84 [2018-11-28 11:44:19,171 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 86 [2018-11-28 11:44:19,848 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2018-11-28 11:44:20,056 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 92 [2018-11-28 11:44:20,515 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2018-11-28 11:44:20,691 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 84 [2018-11-28 11:44:21,405 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2018-11-28 11:44:21,778 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2018-11-28 11:44:21,981 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2018-11-28 11:44:22,221 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2018-11-28 11:44:22,506 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 121 [2018-11-28 11:44:22,709 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2018-11-28 11:44:22,991 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2018-11-28 11:44:23,209 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 109 [2018-11-28 11:44:23,447 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2018-11-28 11:44:23,686 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2018-11-28 11:44:23,890 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 111 [2018-11-28 11:44:24,099 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2018-11-28 11:44:24,312 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 98 [2018-11-28 11:44:25,048 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2018-11-28 11:44:25,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:25,225 INFO L93 Difference]: Finished difference Result 10454 states and 26076 transitions. [2018-11-28 11:44:25,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-11-28 11:44:25,225 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 217 [2018-11-28 11:44:25,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:25,231 INFO L225 Difference]: With dead ends: 10454 [2018-11-28 11:44:25,231 INFO L226 Difference]: Without dead ends: 10118 [2018-11-28 11:44:25,232 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 3 SyntacticMatches, 12 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3126 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=1549, Invalid=9793, Unknown=0, NotChecked=0, Total=11342 [2018-11-28 11:44:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2018-11-28 11:44:25,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 7994. [2018-11-28 11:44:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7994 states. [2018-11-28 11:44:25,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 19943 transitions. [2018-11-28 11:44:25,322 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 19943 transitions. Word has length 217 [2018-11-28 11:44:25,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:44:25,322 INFO L480 AbstractCegarLoop]: Abstraction has 7994 states and 19943 transitions. [2018-11-28 11:44:25,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-11-28 11:44:25,322 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 19943 transitions. [2018-11-28 11:44:25,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:44:25,326 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:44:25,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:25,327 INFO L423 AbstractCegarLoop]: === Iteration 31 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:44:25,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:44:25,327 INFO L82 PathProgramCache]: Analyzing trace with hash -2131768521, now seen corresponding path program 13 times [2018-11-28 11:44:25,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:44:25,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:44:25,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:25,328 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:44:25,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:27,087 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 54 [2018-11-28 11:44:27,264 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 48 [2018-11-28 11:44:27,447 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 46 [2018-11-28 11:44:27,627 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 50 [2018-11-28 11:44:27,804 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 48 [2018-11-28 11:44:28,011 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 46 [2018-11-28 11:44:28,193 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 49 [2018-11-28 11:44:29,175 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 50 [2018-11-28 11:44:29,409 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 52 [2018-11-28 11:44:29,728 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 60 [2018-11-28 11:44:30,159 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 54 [2018-11-28 11:44:31,730 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 11:44:31,730 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:44:31,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2018-11-28 11:44:31,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-11-28 11:44:31,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-11-28 11:44:31,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=2542, Unknown=0, NotChecked=0, Total=2756 [2018-11-28 11:44:31,731 INFO L87 Difference]: Start difference. First operand 7994 states and 19943 transitions. Second operand 53 states. [2018-11-28 11:44:34,060 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 91 [2018-11-28 11:44:34,482 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 93 [2018-11-28 11:44:34,716 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 95 [2018-11-28 11:44:34,993 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 95 [2018-11-28 11:44:35,232 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 101 [2018-11-28 11:44:35,492 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 103 [2018-11-28 11:44:35,723 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 97 [2018-11-28 11:44:37,569 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 93 [2018-11-28 11:44:37,871 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 96 [2018-11-28 11:44:38,685 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2018-11-28 11:44:38,934 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 89 [2018-11-28 11:44:39,347 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 90 [2018-11-28 11:44:39,581 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 97 [2018-11-28 11:44:41,614 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2018-11-28 11:44:41,817 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2018-11-28 11:44:42,024 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 111 [2018-11-28 11:44:42,291 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2018-11-28 11:44:42,503 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2018-11-28 11:44:42,765 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 121 [2018-11-28 11:44:42,975 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2018-11-28 11:44:43,199 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2018-11-28 11:44:43,432 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 109 [2018-11-28 11:44:43,620 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2018-11-28 11:44:43,825 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 100 [2018-11-28 11:44:44,038 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2018-11-28 11:44:44,847 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-11-28 11:44:45,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:45,073 INFO L93 Difference]: Finished difference Result 11750 states and 29346 transitions. [2018-11-28 11:44:45,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-11-28 11:44:45,073 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 217 [2018-11-28 11:44:45,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:45,081 INFO L225 Difference]: With dead ends: 11750 [2018-11-28 11:44:45,081 INFO L226 Difference]: Without dead ends: 11414 [2018-11-28 11:44:45,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 3 SyntacticMatches, 7 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3340 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=1845, Invalid=12197, Unknown=0, NotChecked=0, Total=14042 [2018-11-28 11:44:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2018-11-28 11:44:45,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 7994. [2018-11-28 11:44:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7994 states. [2018-11-28 11:44:45,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 19943 transitions. [2018-11-28 11:44:45,166 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 19943 transitions. Word has length 217 [2018-11-28 11:44:45,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:44:45,166 INFO L480 AbstractCegarLoop]: Abstraction has 7994 states and 19943 transitions. [2018-11-28 11:44:45,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-11-28 11:44:45,166 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 19943 transitions. [2018-11-28 11:44:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:44:45,172 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:44:45,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:45,172 INFO L423 AbstractCegarLoop]: === Iteration 32 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:44:45,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:44:45,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1076771779, now seen corresponding path program 14 times [2018-11-28 11:44:45,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:44:45,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:44:45,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:45,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:44:45,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:44:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:44:48,821 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 11:44:48,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:44:48,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2018-11-28 11:44:48,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-11-28 11:44:48,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-11-28 11:44:48,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=2077, Unknown=0, NotChecked=0, Total=2256 [2018-11-28 11:44:48,822 INFO L87 Difference]: Start difference. First operand 7994 states and 19943 transitions. Second operand 48 states. [2018-11-28 11:44:52,140 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2018-11-28 11:44:52,318 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2018-11-28 11:44:52,631 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2018-11-28 11:44:52,804 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2018-11-28 11:44:54,840 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 81 [2018-11-28 11:44:56,086 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2018-11-28 11:44:56,516 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 95 [2018-11-28 11:44:56,730 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 101 [2018-11-28 11:44:56,888 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2018-11-28 11:44:57,236 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 107 [2018-11-28 11:44:57,396 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2018-11-28 11:44:57,575 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 102 [2018-11-28 11:44:57,742 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2018-11-28 11:44:57,907 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2018-11-28 11:44:58,071 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 96 [2018-11-28 11:44:58,266 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 108 [2018-11-28 11:44:58,419 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2018-11-28 11:44:58,638 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 114 [2018-11-28 11:44:58,780 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2018-11-28 11:44:58,977 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2018-11-28 11:44:59,169 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2018-11-28 11:44:59,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:44:59,983 INFO L93 Difference]: Finished difference Result 11762 states and 29372 transitions. [2018-11-28 11:44:59,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-11-28 11:44:59,983 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 217 [2018-11-28 11:44:59,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:44:59,990 INFO L225 Difference]: With dead ends: 11762 [2018-11-28 11:44:59,990 INFO L226 Difference]: Without dead ends: 11426 [2018-11-28 11:44:59,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 3 SyntacticMatches, 12 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3057 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1699, Invalid=10291, Unknown=0, NotChecked=0, Total=11990 [2018-11-28 11:45:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11426 states. [2018-11-28 11:45:00,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11426 to 7994. [2018-11-28 11:45:00,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7994 states. [2018-11-28 11:45:00,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 19943 transitions. [2018-11-28 11:45:00,063 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 19943 transitions. Word has length 217 [2018-11-28 11:45:00,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:45:00,063 INFO L480 AbstractCegarLoop]: Abstraction has 7994 states and 19943 transitions. [2018-11-28 11:45:00,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-11-28 11:45:00,063 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 19943 transitions. [2018-11-28 11:45:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:45:00,067 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:45:00,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:45:00,067 INFO L423 AbstractCegarLoop]: === Iteration 33 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:45:00,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:45:00,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1478334379, now seen corresponding path program 15 times [2018-11-28 11:45:00,067 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:45:00,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:45:00,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:45:00,068 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:45:00,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:45:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:45:01,685 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 51 [2018-11-28 11:45:03,087 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 57 [2018-11-28 11:45:04,475 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 11:45:04,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:45:04,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2018-11-28 11:45:04,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-11-28 11:45:04,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-11-28 11:45:04,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=2074, Unknown=0, NotChecked=0, Total=2256 [2018-11-28 11:45:04,476 INFO L87 Difference]: Start difference. First operand 7994 states and 19943 transitions. Second operand 48 states. [2018-11-28 11:45:06,943 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2018-11-28 11:45:07,183 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2018-11-28 11:45:07,502 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 82 [2018-11-28 11:45:07,793 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2018-11-28 11:45:08,032 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2018-11-28 11:45:08,441 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2018-11-28 11:45:08,669 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2018-11-28 11:45:08,866 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 82 [2018-11-28 11:45:09,323 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-11-28 11:45:09,496 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2018-11-28 11:45:09,730 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2018-11-28 11:45:10,029 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 103 [2018-11-28 11:45:10,357 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 84 [2018-11-28 11:45:10,544 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 88 [2018-11-28 11:45:10,778 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 92 [2018-11-28 11:45:11,056 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 108 [2018-11-28 11:45:11,205 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2018-11-28 11:45:11,965 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2018-11-28 11:45:12,345 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2018-11-28 11:45:12,480 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2018-11-28 11:45:12,686 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2018-11-28 11:45:12,899 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2018-11-28 11:45:13,169 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2018-11-28 11:45:13,375 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2018-11-28 11:45:13,565 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2018-11-28 11:45:13,827 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2018-11-28 11:45:14,046 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2018-11-28 11:45:14,282 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2018-11-28 11:45:14,511 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2018-11-28 11:45:14,740 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2018-11-28 11:45:14,938 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2018-11-28 11:45:15,189 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2018-11-28 11:45:15,390 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2018-11-28 11:45:15,677 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2018-11-28 11:45:15,864 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2018-11-28 11:45:16,104 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2018-11-28 11:45:16,361 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2018-11-28 11:45:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:45:17,292 INFO L93 Difference]: Finished difference Result 10496 states and 26167 transitions. [2018-11-28 11:45:17,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-11-28 11:45:17,292 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 217 [2018-11-28 11:45:17,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:45:17,298 INFO L225 Difference]: With dead ends: 10496 [2018-11-28 11:45:17,298 INFO L226 Difference]: Without dead ends: 10160 [2018-11-28 11:45:17,299 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 5 SyntacticMatches, 9 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3246 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=1690, Invalid=10742, Unknown=0, NotChecked=0, Total=12432 [2018-11-28 11:45:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10160 states. [2018-11-28 11:45:17,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10160 to 7994. [2018-11-28 11:45:17,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7994 states. [2018-11-28 11:45:17,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 19943 transitions. [2018-11-28 11:45:17,366 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 19943 transitions. Word has length 217 [2018-11-28 11:45:17,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:45:17,366 INFO L480 AbstractCegarLoop]: Abstraction has 7994 states and 19943 transitions. [2018-11-28 11:45:17,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-11-28 11:45:17,367 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 19943 transitions. [2018-11-28 11:45:17,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:45:17,371 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:45:17,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:45:17,372 INFO L423 AbstractCegarLoop]: === Iteration 34 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:45:17,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:45:17,372 INFO L82 PathProgramCache]: Analyzing trace with hash 794970525, now seen corresponding path program 16 times [2018-11-28 11:45:17,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:45:17,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:45:17,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:45:17,373 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:45:17,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:45:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:45:18,760 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 49 [2018-11-28 11:45:19,063 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 57 [2018-11-28 11:45:19,211 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 51 [2018-11-28 11:45:19,467 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 50 [2018-11-28 11:45:19,655 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 55 [2018-11-28 11:45:19,812 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 49 [2018-11-28 11:45:20,928 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 55 [2018-11-28 11:45:21,176 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 63 [2018-11-28 11:45:21,733 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 61 [2018-11-28 11:45:22,949 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 11:45:22,949 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:45:22,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2018-11-28 11:45:22,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-11-28 11:45:22,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-11-28 11:45:22,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=2165, Unknown=0, NotChecked=0, Total=2352 [2018-11-28 11:45:22,950 INFO L87 Difference]: Start difference. First operand 7994 states and 19943 transitions. Second operand 49 states. [2018-11-28 11:45:25,468 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2018-11-28 11:45:25,687 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 81 [2018-11-28 11:45:25,879 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2018-11-28 11:45:26,275 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2018-11-28 11:45:26,473 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 88 [2018-11-28 11:45:27,182 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2018-11-28 11:45:27,355 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 83 [2018-11-28 11:45:27,663 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2018-11-28 11:45:27,928 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 80 [2018-11-28 11:45:28,186 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2018-11-28 11:45:28,531 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 81 [2018-11-28 11:45:28,957 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 87 [2018-11-28 11:45:29,988 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 83 [2018-11-28 11:45:30,233 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 89 [2018-11-28 11:45:30,608 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 85 [2018-11-28 11:45:30,802 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 86 [2018-11-28 11:45:31,901 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2018-11-28 11:45:32,102 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-11-28 11:45:32,299 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2018-11-28 11:45:32,572 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2018-11-28 11:45:32,754 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2018-11-28 11:45:33,065 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2018-11-28 11:45:33,267 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 102 [2018-11-28 11:45:33,517 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2018-11-28 11:45:33,736 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2018-11-28 11:45:33,926 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2018-11-28 11:45:34,134 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2018-11-28 11:45:34,327 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2018-11-28 11:45:35,125 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-11-28 11:45:35,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:45:35,328 INFO L93 Difference]: Finished difference Result 11522 states and 28703 transitions. [2018-11-28 11:45:35,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-11-28 11:45:35,328 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 217 [2018-11-28 11:45:35,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:45:35,335 INFO L225 Difference]: With dead ends: 11522 [2018-11-28 11:45:35,335 INFO L226 Difference]: Without dead ends: 11186 [2018-11-28 11:45:35,336 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 3 SyntacticMatches, 10 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3099 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=1503, Invalid=10269, Unknown=0, NotChecked=0, Total=11772 [2018-11-28 11:45:35,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11186 states. [2018-11-28 11:45:35,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11186 to 7994. [2018-11-28 11:45:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7994 states. [2018-11-28 11:45:35,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 19943 transitions. [2018-11-28 11:45:35,422 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 19943 transitions. Word has length 217 [2018-11-28 11:45:35,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:45:35,422 INFO L480 AbstractCegarLoop]: Abstraction has 7994 states and 19943 transitions. [2018-11-28 11:45:35,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-11-28 11:45:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 19943 transitions. [2018-11-28 11:45:35,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:45:35,426 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:45:35,427 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:45:35,427 INFO L423 AbstractCegarLoop]: === Iteration 35 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:45:35,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:45:35,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1324420641, now seen corresponding path program 17 times [2018-11-28 11:45:35,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:45:35,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:45:35,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:45:35,428 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:45:35,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:45:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:45:36,439 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 55 [2018-11-28 11:45:36,752 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 53 [2018-11-28 11:45:36,900 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2018-11-28 11:45:39,108 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 11:45:39,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:45:39,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2018-11-28 11:45:39,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-11-28 11:45:39,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-11-28 11:45:39,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1643, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 11:45:39,109 INFO L87 Difference]: Start difference. First operand 7994 states and 19943 transitions. Second operand 43 states. [2018-11-28 11:45:41,017 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2018-11-28 11:45:41,223 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2018-11-28 11:45:41,473 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2018-11-28 11:45:41,693 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2018-11-28 11:45:42,112 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 87 [2018-11-28 11:45:42,353 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 97 [2018-11-28 11:45:42,558 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 90 [2018-11-28 11:45:42,736 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 80 [2018-11-28 11:45:43,180 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2018-11-28 11:45:43,359 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 94 [2018-11-28 11:45:43,634 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 88 [2018-11-28 11:45:43,864 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2018-11-28 11:45:44,090 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 96 [2018-11-28 11:45:44,391 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 91 [2018-11-28 11:45:44,692 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 91 [2018-11-28 11:45:45,005 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 93 [2018-11-28 11:45:45,625 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 77 [2018-11-28 11:45:45,841 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 80 [2018-11-28 11:45:46,272 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 84 [2018-11-28 11:45:46,602 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 108 [2018-11-28 11:45:47,993 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2018-11-28 11:45:48,199 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2018-11-28 11:45:48,400 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2018-11-28 11:45:48,674 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 131 [2018-11-28 11:45:48,880 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2018-11-28 11:45:49,142 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 141 [2018-11-28 11:45:49,374 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 125 [2018-11-28 11:45:49,610 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2018-11-28 11:45:49,855 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 135 [2018-11-28 11:45:50,055 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2018-11-28 11:45:50,276 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 121 [2018-11-28 11:45:50,481 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2018-11-28 11:45:51,340 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2018-11-28 11:45:51,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:45:51,665 INFO L93 Difference]: Finished difference Result 12752 states and 31853 transitions. [2018-11-28 11:45:51,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-11-28 11:45:51,666 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 217 [2018-11-28 11:45:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:45:51,675 INFO L225 Difference]: With dead ends: 12752 [2018-11-28 11:45:51,675 INFO L226 Difference]: Without dead ends: 12416 [2018-11-28 11:45:51,675 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 3 SyntacticMatches, 10 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2416 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=1424, Invalid=7888, Unknown=0, NotChecked=0, Total=9312 [2018-11-28 11:45:51,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12416 states. [2018-11-28 11:45:51,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12416 to 8090. [2018-11-28 11:45:51,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8090 states. [2018-11-28 11:45:51,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8090 states to 8090 states and 20195 transitions. [2018-11-28 11:45:51,753 INFO L78 Accepts]: Start accepts. Automaton has 8090 states and 20195 transitions. Word has length 217 [2018-11-28 11:45:51,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:45:51,753 INFO L480 AbstractCegarLoop]: Abstraction has 8090 states and 20195 transitions. [2018-11-28 11:45:51,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-11-28 11:45:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 8090 states and 20195 transitions. [2018-11-28 11:45:51,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:45:51,758 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:45:51,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:45:51,759 INFO L423 AbstractCegarLoop]: === Iteration 36 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:45:51,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:45:51,759 INFO L82 PathProgramCache]: Analyzing trace with hash -192117027, now seen corresponding path program 18 times [2018-11-28 11:45:51,759 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:45:51,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:45:51,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:45:51,760 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:45:51,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:45:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:45:52,692 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 55 [2018-11-28 11:45:52,842 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 49 [2018-11-28 11:45:53,039 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 46 [2018-11-28 11:45:53,193 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2018-11-28 11:45:53,441 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2018-11-28 11:45:54,171 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 49 [2018-11-28 11:45:54,336 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 56 [2018-11-28 11:45:55,693 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 11:45:55,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:45:55,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2018-11-28 11:45:55,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-11-28 11:45:55,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-11-28 11:45:55,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1642, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 11:45:55,694 INFO L87 Difference]: Start difference. First operand 8090 states and 20195 transitions. Second operand 43 states. [2018-11-28 11:45:57,202 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2018-11-28 11:45:57,400 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2018-11-28 11:45:57,640 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2018-11-28 11:45:57,850 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2018-11-28 11:45:58,269 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 83 [2018-11-28 11:45:58,485 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 90 [2018-11-28 11:45:58,661 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2018-11-28 11:45:58,831 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2018-11-28 11:45:59,406 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 89 [2018-11-28 11:45:59,677 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 86 [2018-11-28 11:45:59,899 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2018-11-28 11:46:00,106 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 86 [2018-11-28 11:46:00,376 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 88 [2018-11-28 11:46:00,653 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 88 [2018-11-28 11:46:00,979 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 90 [2018-11-28 11:46:02,255 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 82 [2018-11-28 11:46:02,490 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 87 [2018-11-28 11:46:03,457 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2018-11-28 11:46:03,839 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2018-11-28 11:46:04,045 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2018-11-28 11:46:04,242 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 121 [2018-11-28 11:46:04,489 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 131 [2018-11-28 11:46:04,684 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 115 [2018-11-28 11:46:04,935 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 141 [2018-11-28 11:46:05,168 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 125 [2018-11-28 11:46:05,379 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 127 [2018-11-28 11:46:05,621 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2018-11-28 11:46:05,807 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2018-11-28 11:46:06,025 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 121 [2018-11-28 11:46:06,226 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 111 [2018-11-28 11:46:07,000 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-11-28 11:46:07,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:46:07,293 INFO L93 Difference]: Finished difference Result 12668 states and 31659 transitions. [2018-11-28 11:46:07,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-11-28 11:46:07,294 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 217 [2018-11-28 11:46:07,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:46:07,304 INFO L225 Difference]: With dead ends: 12668 [2018-11-28 11:46:07,304 INFO L226 Difference]: Without dead ends: 12332 [2018-11-28 11:46:07,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 4 SyntacticMatches, 11 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2462 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=1367, Invalid=7753, Unknown=0, NotChecked=0, Total=9120 [2018-11-28 11:46:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12332 states. [2018-11-28 11:46:07,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12332 to 8126. [2018-11-28 11:46:07,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8126 states. [2018-11-28 11:46:07,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8126 states to 8126 states and 20285 transitions. [2018-11-28 11:46:07,400 INFO L78 Accepts]: Start accepts. Automaton has 8126 states and 20285 transitions. Word has length 217 [2018-11-28 11:46:07,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:46:07,401 INFO L480 AbstractCegarLoop]: Abstraction has 8126 states and 20285 transitions. [2018-11-28 11:46:07,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-11-28 11:46:07,401 INFO L276 IsEmpty]: Start isEmpty. Operand 8126 states and 20285 transitions. [2018-11-28 11:46:07,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:46:07,407 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:46:07,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:07,407 INFO L423 AbstractCegarLoop]: === Iteration 37 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:46:07,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:46:07,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1979527685, now seen corresponding path program 19 times [2018-11-28 11:46:07,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:46:07,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:46:07,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:46:07,409 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:46:07,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:46:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:46:08,438 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 59 [2018-11-28 11:46:08,748 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 49 [2018-11-28 11:46:08,890 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 53 [2018-11-28 11:46:11,210 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 11:46:11,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:46:11,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2018-11-28 11:46:11,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-11-28 11:46:11,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-11-28 11:46:11,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1652, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 11:46:11,211 INFO L87 Difference]: Start difference. First operand 8126 states and 20285 transitions. Second operand 43 states. [2018-11-28 11:46:12,981 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 77 [2018-11-28 11:46:13,207 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 86 [2018-11-28 11:46:13,396 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 82 [2018-11-28 11:46:13,838 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2018-11-28 11:46:14,027 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 86 [2018-11-28 11:46:14,784 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 86 [2018-11-28 11:46:14,944 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 93 [2018-11-28 11:46:15,201 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2018-11-28 11:46:15,423 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 88 [2018-11-28 11:46:15,635 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 95 [2018-11-28 11:46:15,924 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 90 [2018-11-28 11:46:16,211 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 93 [2018-11-28 11:46:16,527 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 95 [2018-11-28 11:46:17,204 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 84 [2018-11-28 11:46:17,614 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 82 [2018-11-28 11:46:18,015 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 86 [2018-11-28 11:46:18,283 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 110 [2018-11-28 11:46:18,583 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2018-11-28 11:46:19,666 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 108 [2018-11-28 11:46:19,819 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2018-11-28 11:46:19,997 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2018-11-28 11:46:20,259 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 120 [2018-11-28 11:46:20,516 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 129 [2018-11-28 11:46:20,721 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 111 [2018-11-28 11:46:20,983 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 138 [2018-11-28 11:46:21,162 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 113 [2018-11-28 11:46:21,381 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 120 [2018-11-28 11:46:21,616 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2018-11-28 11:46:21,865 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 129 [2018-11-28 11:46:22,059 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2018-11-28 11:46:22,275 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2018-11-28 11:46:22,495 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2018-11-28 11:46:22,742 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 134 [2018-11-28 11:46:22,936 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2018-11-28 11:46:23,215 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 143 [2018-11-28 11:46:23,496 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 131 [2018-11-28 11:46:23,715 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2018-11-28 11:46:24,438 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2018-11-28 11:46:24,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:46:24,667 INFO L93 Difference]: Finished difference Result 12626 states and 31568 transitions. [2018-11-28 11:46:24,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-11-28 11:46:24,667 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 217 [2018-11-28 11:46:24,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:46:24,677 INFO L225 Difference]: With dead ends: 12626 [2018-11-28 11:46:24,677 INFO L226 Difference]: Without dead ends: 12290 [2018-11-28 11:46:24,677 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 4 SyntacticMatches, 10 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2910 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=1648, Invalid=9272, Unknown=0, NotChecked=0, Total=10920 [2018-11-28 11:46:24,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12290 states. [2018-11-28 11:46:24,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12290 to 8150. [2018-11-28 11:46:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8150 states. [2018-11-28 11:46:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8150 states to 8150 states and 20345 transitions. [2018-11-28 11:46:24,756 INFO L78 Accepts]: Start accepts. Automaton has 8150 states and 20345 transitions. Word has length 217 [2018-11-28 11:46:24,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:46:24,756 INFO L480 AbstractCegarLoop]: Abstraction has 8150 states and 20345 transitions. [2018-11-28 11:46:24,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-11-28 11:46:24,756 INFO L276 IsEmpty]: Start isEmpty. Operand 8150 states and 20345 transitions. [2018-11-28 11:46:24,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:46:24,762 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:46:24,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:24,762 INFO L423 AbstractCegarLoop]: === Iteration 38 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:46:24,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:46:24,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1330106683, now seen corresponding path program 20 times [2018-11-28 11:46:24,762 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:46:24,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:46:24,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:46:24,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:46:24,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:46:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:46:25,897 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 46 [2018-11-28 11:46:26,029 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 46 [2018-11-28 11:46:26,233 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 54 [2018-11-28 11:46:26,426 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 49 [2018-11-28 11:46:26,669 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 47 [2018-11-28 11:46:26,830 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 56 [2018-11-28 11:46:28,049 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 51 [2018-11-28 11:46:29,612 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 11:46:29,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:46:29,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2018-11-28 11:46:29,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-11-28 11:46:29,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-11-28 11:46:29,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1823, Unknown=0, NotChecked=0, Total=1980 [2018-11-28 11:46:29,613 INFO L87 Difference]: Start difference. First operand 8150 states and 20345 transitions. Second operand 45 states. [2018-11-28 11:46:31,697 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2018-11-28 11:46:31,954 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 79 [2018-11-28 11:46:32,272 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2018-11-28 11:46:32,535 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 85 [2018-11-28 11:46:33,032 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 87 [2018-11-28 11:46:33,301 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 93 [2018-11-28 11:46:33,516 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 80 [2018-11-28 11:46:33,708 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2018-11-28 11:46:34,200 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 90 [2018-11-28 11:46:35,023 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 93 [2018-11-28 11:46:35,283 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 89 [2018-11-28 11:46:35,545 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 89 [2018-11-28 11:46:35,841 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 91 [2018-11-28 11:46:36,907 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 104 [2018-11-28 11:46:37,074 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 79 [2018-11-28 11:46:37,577 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 83 [2018-11-28 11:46:37,857 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 105 [2018-11-28 11:46:39,211 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2018-11-28 11:46:39,389 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2018-11-28 11:46:39,549 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 103 [2018-11-28 11:46:39,762 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2018-11-28 11:46:39,927 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 97 [2018-11-28 11:46:40,134 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2018-11-28 11:46:40,314 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2018-11-28 11:46:40,515 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2018-11-28 11:46:40,741 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 113 [2018-11-28 11:46:40,916 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2018-11-28 11:46:41,128 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2018-11-28 11:46:41,308 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2018-11-28 11:46:42,034 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-11-28 11:46:42,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:46:42,301 INFO L93 Difference]: Finished difference Result 12686 states and 31726 transitions. [2018-11-28 11:46:42,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-11-28 11:46:42,302 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 217 [2018-11-28 11:46:42,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:46:42,310 INFO L225 Difference]: With dead ends: 12686 [2018-11-28 11:46:42,310 INFO L226 Difference]: Without dead ends: 12350 [2018-11-28 11:46:42,310 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 3 SyntacticMatches, 12 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2979 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=1543, Invalid=9377, Unknown=0, NotChecked=0, Total=10920 [2018-11-28 11:46:42,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12350 states. [2018-11-28 11:46:42,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12350 to 8162. [2018-11-28 11:46:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8162 states. [2018-11-28 11:46:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8162 states to 8162 states and 20375 transitions. [2018-11-28 11:46:42,393 INFO L78 Accepts]: Start accepts. Automaton has 8162 states and 20375 transitions. Word has length 217 [2018-11-28 11:46:42,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:46:42,393 INFO L480 AbstractCegarLoop]: Abstraction has 8162 states and 20375 transitions. [2018-11-28 11:46:42,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-11-28 11:46:42,393 INFO L276 IsEmpty]: Start isEmpty. Operand 8162 states and 20375 transitions. [2018-11-28 11:46:42,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-28 11:46:42,398 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:46:42,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:42,398 INFO L423 AbstractCegarLoop]: === Iteration 39 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:46:42,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:46:42,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1286406561, now seen corresponding path program 21 times [2018-11-28 11:46:42,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:46:42,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:46:42,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:46:42,400 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:46:42,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:46:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:46:43,456 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 52 [2018-11-28 11:46:43,740 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 46 [2018-11-28 11:46:44,715 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 60 [2018-11-28 11:46:46,165 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 11:46:46,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:46:46,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2018-11-28 11:46:46,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-11-28 11:46:46,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-11-28 11:46:46,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1821, Unknown=0, NotChecked=0, Total=1980 [2018-11-28 11:46:46,166 INFO L87 Difference]: Start difference. First operand 8162 states and 20375 transitions. Second operand 45 states. [2018-11-28 11:46:48,226 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 77 [2018-11-28 11:46:48,466 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2018-11-28 11:46:48,666 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81 [2018-11-28 11:46:49,056 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 83 [2018-11-28 11:46:49,257 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 85 [2018-11-28 11:46:49,983 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2018-11-28 11:46:50,144 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 88 [2018-11-28 11:46:50,410 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 90 [2018-11-28 11:46:50,647 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 87 [2018-11-28 11:46:50,861 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 90 [2018-11-28 11:46:51,177 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 92 [2018-11-28 11:46:51,474 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 97 [2018-11-28 11:46:51,805 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 90 [2018-11-28 11:46:52,537 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 83 [2018-11-28 11:46:52,726 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 85 [2018-11-28 11:46:52,992 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 87 [2018-11-28 11:46:53,162 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 89 [2018-11-28 11:46:53,594 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 85 [2018-11-28 11:46:53,866 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 89 [2018-11-28 11:46:54,962 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2018-11-28 11:46:55,304 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2018-11-28 11:46:55,620 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2018-11-28 11:46:55,812 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112 [2018-11-28 11:46:56,071 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 119 [2018-11-28 11:46:56,269 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 103 [2018-11-28 11:46:56,518 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2018-11-28 11:46:56,688 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 107 [2018-11-28 11:46:56,915 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2018-11-28 11:46:57,119 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2018-11-28 11:46:57,352 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 117 [2018-11-28 11:46:57,531 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2018-11-28 11:46:57,736 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 117 [2018-11-28 11:46:57,940 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 106 [2018-11-28 11:46:58,182 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124 [2018-11-28 11:46:58,357 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2018-11-28 11:46:58,626 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 131 [2018-11-28 11:46:58,908 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 121 [2018-11-28 11:46:59,109 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 114 [2018-11-28 11:46:59,812 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2018-11-28 11:47:00,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:47:00,066 INFO L93 Difference]: Finished difference Result 13520 states and 33889 transitions. [2018-11-28 11:47:00,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-11-28 11:47:00,066 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 217 [2018-11-28 11:47:00,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:47:00,075 INFO L225 Difference]: With dead ends: 13520 [2018-11-28 11:47:00,075 INFO L226 Difference]: Without dead ends: 13184 [2018-11-28 11:47:00,075 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 3 SyntacticMatches, 13 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3304 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=1837, Invalid=10373, Unknown=0, NotChecked=0, Total=12210 [2018-11-28 11:47:00,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13184 states. [2018-11-28 11:47:00,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13184 to 7910. [2018-11-28 11:47:00,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7910 states. [2018-11-28 11:47:00,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7910 states to 7910 states and 19681 transitions. [2018-11-28 11:47:00,153 INFO L78 Accepts]: Start accepts. Automaton has 7910 states and 19681 transitions. Word has length 217 [2018-11-28 11:47:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:47:00,153 INFO L480 AbstractCegarLoop]: Abstraction has 7910 states and 19681 transitions. [2018-11-28 11:47:00,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-11-28 11:47:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand 7910 states and 19681 transitions. [2018-11-28 11:47:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-28 11:47:00,157 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:47:00,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:47:00,157 INFO L423 AbstractCegarLoop]: === Iteration 40 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:47:00,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:47:00,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1655818625, now seen corresponding path program 1 times [2018-11-28 11:47:00,158 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:47:00,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:47:00,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:00,158 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:47:00,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:47:01,285 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 52 [2018-11-28 11:47:04,231 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 11:47:04,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:47:04,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2018-11-28 11:47:04,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-11-28 11:47:04,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-11-28 11:47:04,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=2176, Unknown=0, NotChecked=0, Total=2352 [2018-11-28 11:47:04,232 INFO L87 Difference]: Start difference. First operand 7910 states and 19681 transitions. Second operand 49 states. [2018-11-28 11:47:06,197 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 74 [2018-11-28 11:47:06,394 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2018-11-28 11:47:06,634 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2018-11-28 11:47:06,851 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2018-11-28 11:47:07,241 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2018-11-28 11:47:07,467 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 90 [2018-11-28 11:47:09,055 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2018-11-28 11:47:09,317 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2018-11-28 11:47:09,611 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2018-11-28 11:47:11,394 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 79 [2018-11-28 11:47:12,537 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 74 [2018-11-28 11:47:12,730 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 81 [2018-11-28 11:47:13,821 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 94 [2018-11-28 11:47:14,006 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-11-28 11:47:14,189 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2018-11-28 11:47:14,436 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 108 [2018-11-28 11:47:14,623 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2018-11-28 11:47:14,861 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 117 [2018-11-28 11:47:15,050 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2018-11-28 11:47:15,266 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2018-11-28 11:47:15,481 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2018-11-28 11:47:15,679 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2018-11-28 11:47:15,938 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2018-11-28 11:47:16,182 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2018-11-28 11:47:16,858 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-11-28 11:47:17,095 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2018-11-28 11:47:17,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:47:17,384 INFO L93 Difference]: Finished difference Result 14384 states and 36039 transitions. [2018-11-28 11:47:17,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-11-28 11:47:17,384 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 219 [2018-11-28 11:47:17,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:47:17,396 INFO L225 Difference]: With dead ends: 14384 [2018-11-28 11:47:17,396 INFO L226 Difference]: Without dead ends: 14048 [2018-11-28 11:47:17,396 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 2 SyntacticMatches, 14 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4079 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=1649, Invalid=12871, Unknown=0, NotChecked=0, Total=14520 [2018-11-28 11:47:17,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14048 states. [2018-11-28 11:47:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14048 to 8539. [2018-11-28 11:47:17,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8539 states. [2018-11-28 11:47:17,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8539 states to 8539 states and 21331 transitions. [2018-11-28 11:47:17,504 INFO L78 Accepts]: Start accepts. Automaton has 8539 states and 21331 transitions. Word has length 219 [2018-11-28 11:47:17,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:47:17,504 INFO L480 AbstractCegarLoop]: Abstraction has 8539 states and 21331 transitions. [2018-11-28 11:47:17,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-11-28 11:47:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 8539 states and 21331 transitions. [2018-11-28 11:47:17,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-28 11:47:17,511 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:47:17,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:47:17,512 INFO L423 AbstractCegarLoop]: === Iteration 41 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:47:17,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:47:17,512 INFO L82 PathProgramCache]: Analyzing trace with hash 246824483, now seen corresponding path program 2 times [2018-11-28 11:47:17,512 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:47:17,512 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:47:17,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:17,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:47:17,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:47:18,292 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2018-11-28 11:47:18,452 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 48 [2018-11-28 11:47:18,609 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 48 [2018-11-28 11:47:18,835 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 57 [2018-11-28 11:47:19,040 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 50 [2018-11-28 11:47:19,265 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 49 [2018-11-28 11:47:19,428 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 53 [2018-11-28 11:47:20,325 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 50 [2018-11-28 11:47:20,525 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 60 [2018-11-28 11:47:20,675 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 46 [2018-11-28 11:47:22,092 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 11:47:22,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:47:22,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2018-11-28 11:47:22,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-11-28 11:47:22,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-11-28 11:47:22,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1642, Unknown=0, NotChecked=0, Total=1806 [2018-11-28 11:47:22,093 INFO L87 Difference]: Start difference. First operand 8539 states and 21331 transitions. Second operand 43 states. [2018-11-28 11:47:23,635 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 72 [2018-11-28 11:47:23,829 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 74 [2018-11-28 11:47:24,061 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 81 [2018-11-28 11:47:24,271 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2018-11-28 11:47:24,661 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 81 [2018-11-28 11:47:24,878 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 88 [2018-11-28 11:47:25,063 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2018-11-28 11:47:25,634 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 86 [2018-11-28 11:47:25,799 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 82 [2018-11-28 11:47:26,062 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 86 [2018-11-28 11:47:26,276 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 88 [2018-11-28 11:47:26,489 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 86 [2018-11-28 11:47:26,771 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 90 [2018-11-28 11:47:27,058 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 90 [2018-11-28 11:47:27,374 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 92 [2018-11-28 11:47:28,065 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 79 [2018-11-28 11:47:28,460 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 89 [2018-11-28 11:47:28,612 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 81 [2018-11-28 11:47:29,033 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 82 [2018-11-28 11:47:29,292 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 83 [2018-11-28 11:47:30,691 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 104 [2018-11-28 11:47:30,880 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2018-11-28 11:47:31,085 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 117 [2018-11-28 11:47:31,364 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 126 [2018-11-28 11:47:31,566 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2018-11-28 11:47:31,841 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 135 [2018-11-28 11:47:32,104 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 118 [2018-11-28 11:47:32,322 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 122 [2018-11-28 11:47:32,565 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 127 [2018-11-28 11:47:32,756 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 113 [2018-11-28 11:47:32,968 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2018-11-28 11:47:33,175 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2018-11-28 11:47:33,958 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2018-11-28 11:47:34,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:47:34,252 INFO L93 Difference]: Finished difference Result 13357 states and 33511 transitions. [2018-11-28 11:47:34,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-11-28 11:47:34,252 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 219 [2018-11-28 11:47:34,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:47:34,262 INFO L225 Difference]: With dead ends: 13357 [2018-11-28 11:47:34,263 INFO L226 Difference]: Without dead ends: 13021 [2018-11-28 11:47:34,263 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 2 SyntacticMatches, 14 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2772 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=1600, Invalid=8500, Unknown=0, NotChecked=0, Total=10100 [2018-11-28 11:47:34,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13021 states. [2018-11-28 11:47:34,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13021 to 8015. [2018-11-28 11:47:34,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8015 states. [2018-11-28 11:47:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8015 states to 8015 states and 19951 transitions. [2018-11-28 11:47:34,356 INFO L78 Accepts]: Start accepts. Automaton has 8015 states and 19951 transitions. Word has length 219 [2018-11-28 11:47:34,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:47:34,356 INFO L480 AbstractCegarLoop]: Abstraction has 8015 states and 19951 transitions. [2018-11-28 11:47:34,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-11-28 11:47:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 8015 states and 19951 transitions. [2018-11-28 11:47:34,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-28 11:47:34,363 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:47:34,363 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:47:34,363 INFO L423 AbstractCegarLoop]: === Iteration 42 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:47:34,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:47:34,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1342875137, now seen corresponding path program 1 times [2018-11-28 11:47:34,364 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:47:34,364 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:47:34,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:34,365 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:47:34,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:47:34,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:47:34,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:47:34,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:47:34,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:47:34,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:47:34,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:47:34,403 INFO L87 Difference]: Start difference. First operand 8015 states and 19951 transitions. Second operand 3 states. [2018-11-28 11:47:34,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:47:34,420 INFO L93 Difference]: Finished difference Result 6707 states and 16584 transitions. [2018-11-28 11:47:34,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:47:34,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2018-11-28 11:47:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:47:34,425 INFO L225 Difference]: With dead ends: 6707 [2018-11-28 11:47:34,425 INFO L226 Difference]: Without dead ends: 6281 [2018-11-28 11:47:34,426 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:47:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2018-11-28 11:47:34,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 6281. [2018-11-28 11:47:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6281 states. [2018-11-28 11:47:34,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6281 states to 6281 states and 15452 transitions. [2018-11-28 11:47:34,510 INFO L78 Accepts]: Start accepts. Automaton has 6281 states and 15452 transitions. Word has length 225 [2018-11-28 11:47:34,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:47:34,510 INFO L480 AbstractCegarLoop]: Abstraction has 6281 states and 15452 transitions. [2018-11-28 11:47:34,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:47:34,510 INFO L276 IsEmpty]: Start isEmpty. Operand 6281 states and 15452 transitions. [2018-11-28 11:47:34,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-28 11:47:34,514 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:47:34,514 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:47:34,514 INFO L423 AbstractCegarLoop]: === Iteration 43 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:47:34,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:47:34,514 INFO L82 PathProgramCache]: Analyzing trace with hash -177954351, now seen corresponding path program 1 times [2018-11-28 11:47:34,514 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:47:34,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:47:34,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:34,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:47:34,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:47:34,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:47:34,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:47:34,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:47:34,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:47:34,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:47:34,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:47:34,551 INFO L87 Difference]: Start difference. First operand 6281 states and 15452 transitions. Second operand 3 states. [2018-11-28 11:47:34,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:47:34,616 INFO L93 Difference]: Finished difference Result 6749 states and 16642 transitions. [2018-11-28 11:47:34,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:47:34,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2018-11-28 11:47:34,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:47:34,623 INFO L225 Difference]: With dead ends: 6749 [2018-11-28 11:47:34,623 INFO L226 Difference]: Without dead ends: 6134 [2018-11-28 11:47:34,623 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:47:34,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2018-11-28 11:47:34,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 6134. [2018-11-28 11:47:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6134 states. [2018-11-28 11:47:34,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 15021 transitions. [2018-11-28 11:47:34,675 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 15021 transitions. Word has length 225 [2018-11-28 11:47:34,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:47:34,675 INFO L480 AbstractCegarLoop]: Abstraction has 6134 states and 15021 transitions. [2018-11-28 11:47:34,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:47:34,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 15021 transitions. [2018-11-28 11:47:34,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-28 11:47:34,679 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:47:34,679 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:47:34,680 INFO L423 AbstractCegarLoop]: === Iteration 44 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:47:34,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:47:34,680 INFO L82 PathProgramCache]: Analyzing trace with hash 915582433, now seen corresponding path program 2 times [2018-11-28 11:47:34,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:47:34,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:47:34,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:34,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:47:34,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:47:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:47:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:47:34,837 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:47:34,937 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 11:47:34,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:47:34 BasicIcfg [2018-11-28 11:47:34,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:47:34,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:47:34,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:47:34,942 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:47:34,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:39:52" (3/4) ... [2018-11-28 11:47:34,946 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 11:47:35,046 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_10d3b844-103e-4001-a671-263b2ee48289/bin-2019/uautomizer/witness.graphml [2018-11-28 11:47:35,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:47:35,047 INFO L168 Benchmark]: Toolchain (without parser) took 464194.30 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 410.0 MB). Free memory was 951.7 MB in the beginning and 738.7 MB in the end (delta: 213.0 MB). Peak memory consumption was 623.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:47:35,048 INFO L168 Benchmark]: CDTParser took 0.18 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 11:47:35,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:47:35,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:47:35,048 INFO L168 Benchmark]: Boogie Preprocessor took 35.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:47:35,048 INFO L168 Benchmark]: RCFGBuilder took 666.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:47:35,048 INFO L168 Benchmark]: TraceAbstraction took 462762.70 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 248.0 MB). Free memory was 1.0 GB in the beginning and 826.3 MB in the end (delta: 223.2 MB). Peak memory consumption was 471.2 MB. Max. memory is 11.5 GB. [2018-11-28 11:47:35,048 INFO L168 Benchmark]: Witness Printer took 105.06 ms. Allocated memory is still 1.4 GB. Free memory was 826.3 MB in the beginning and 738.7 MB in the end (delta: 87.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:47:35,049 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 564.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 666.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 462762.70 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 248.0 MB). Free memory was 1.0 GB in the beginning and 826.3 MB in the end (delta: 223.2 MB). Peak memory consumption was 471.2 MB. Max. memory is 11.5 GB. * Witness Printer took 105.06 ms. Allocated memory is still 1.4 GB. Free memory was 826.3 MB in the beginning and 738.7 MB in the end (delta: 87.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1035]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L939] -1 pthread_mutex_t m; VAL [m={109:0}] [L941] -1 int stored_elements[(20)]; VAL [m={109:0}, stored_elements={115:0}] [L942] -1 _Bool enqueue_flag, dequeue_flag; VAL [dequeue_flag=0, enqueue_flag=0, m={109:0}, stored_elements={115:0}] [L943] -1 QType queue; VAL [dequeue_flag=0, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1046] -1 pthread_t id1, id2; VAL [dequeue_flag=0, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1047] -1 enqueue_flag=(1) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1048] -1 dequeue_flag=(0) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L946] -1 q->head=0 VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L947] -1 q->tail=0 VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L948] -1 q->amount=0 VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L952] EXPR -1 q->head VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L952] EXPR -1 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L952] COND TRUE -1 q->head == q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L955] -1 return (-1); VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1050] COND FALSE -1 !(!empty(&queue)==(-1)) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1055] FCALL, FORK -1 pthread_create(&id1, ((void *)0), t1, &queue) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L999] 0 int value, i; VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1056] FCALL, FORK -1 pthread_create(&id2, ((void *)0), t2, &queue) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1028] 1 int i; VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1029] 1 i=0 VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1029] COND TRUE 1 i<(20) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1001] 0 value = __VERIFIER_nondet_int() VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L972] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L972] 0 q->element[q->tail] = x VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L973] EXPR 0 q->amount VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L973] 0 q->amount++ VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L974] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L974] COND FALSE 0 !(q->tail == (20)) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L980] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L980] 0 q->tail++ VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L982] 0 return 0; VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1002] COND FALSE 0 !(enqueue(&queue,value)) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1005] 0 stored_elements[0]=value VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L952] EXPR 0 q->head VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L952] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L952] COND FALSE 0 !(q->head == q->tail) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L958] 0 return 0; VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1006] COND FALSE 0 !(empty(&queue)) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1010] 0 i=0 VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1010] COND TRUE 0 i<((20)-1) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1032] COND FALSE 1 !(\read(dequeue_flag)) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1029] 1 i++ VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1029] COND TRUE 1 i<(20) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1013] COND TRUE 0 \read(enqueue_flag) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1015] 0 value = __VERIFIER_nondet_int() VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L972] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L972] 0 q->element[q->tail] = x VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L973] EXPR 0 q->amount VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L973] 0 q->amount++ VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L974] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L974] COND FALSE 0 !(q->tail == (20)) VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L980] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L980] 0 q->tail++ VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L982] 0 return 0; VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1017] 0 stored_elements[i+1]=value VAL [dequeue_flag=0, enqueue_flag=1, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1018] 0 enqueue_flag=(0) VAL [dequeue_flag=0, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1019] 0 dequeue_flag=(1) VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1032] COND TRUE 1 \read(dequeue_flag) VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L986] 1 int x; VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L987] EXPR 1 q->head VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L987] EXPR 1 q->element[q->head] VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L987] 1 x = q->element[q->head] VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L988] EXPR 1 q->amount VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L988] 1 q->amount-- VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L989] EXPR 1 q->head VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L989] COND FALSE 1 !(q->head == (20)) VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L994] EXPR 1 q->head VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L994] 1 q->head++ VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L995] 1 return x; VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1034] EXPR 1 stored_elements[i] VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1034] COND TRUE 1 !dequeue(&queue)==stored_elements[i] VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] [L1035] 1 __VERIFIER_error() VAL [dequeue_flag=1, enqueue_flag=0, m={109:0}, queue={119:0}, stored_elements={115:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 427 locations, 5 error locations. UNSAFE Result, 462.6s OverallTime, 44 OverallIterations, 2 TraceHistogramMax, 332.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15147 SDtfs, 93890 SDslu, 232320 SDs, 0 SdLazy, 192252 SolverSat, 5165 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3534 GetRequests, 125 SyntacticMatches, 318 SemanticMatches, 3091 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79967 ImplicationChecksByTransitivity, 319.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17270occurred in iteration=0, 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: 5.3s AutomataMinimizationTime, 43 MinimizatonAttempts, 106571 StatesRemovedByMinimization, 36 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 115.1s InterpolantComputationTime, 8366 NumberOfCodeBlocks, 8366 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 8098 ConstructedInterpolants, 0 QuantifiedInterpolants, 67433628 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 43 InterpolantComputations, 43 PerfectInterpolantSequences, 9/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...