./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/queue_longer_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 96530338 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread/queue_longer_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 503becab32df26e7fb48d4b324b68cdf317e346a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-9653033 [2018-11-26 13:00:30,149 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-26 13:00:30,150 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-26 13:00:30,162 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-26 13:00:30,162 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-26 13:00:30,163 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-26 13:00:30,164 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-26 13:00:30,166 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-26 13:00:30,167 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-26 13:00:30,168 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-26 13:00:30,169 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-26 13:00:30,169 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-26 13:00:30,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-26 13:00:30,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-26 13:00:30,172 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-26 13:00:30,173 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-26 13:00:30,174 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-26 13:00:30,176 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-26 13:00:30,178 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-26 13:00:30,180 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-26 13:00:30,181 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-26 13:00:30,183 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-26 13:00:30,185 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-26 13:00:30,185 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-26 13:00:30,185 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-26 13:00:30,186 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-26 13:00:30,187 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-26 13:00:30,188 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-26 13:00:30,189 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-26 13:00:30,190 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-26 13:00:30,190 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-26 13:00:30,191 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-26 13:00:30,191 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-26 13:00:30,191 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-26 13:00:30,192 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-26 13:00:30,193 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-26 13:00:30,193 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-26 13:00:30,208 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-26 13:00:30,208 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-26 13:00:30,209 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-26 13:00:30,209 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-26 13:00:30,210 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-26 13:00:30,210 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-26 13:00:30,210 INFO L133 SettingsManager]: * Use SBE=true [2018-11-26 13:00:30,210 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-26 13:00:30,210 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-26 13:00:30,211 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-26 13:00:30,211 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-26 13:00:30,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-26 13:00:30,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-26 13:00:30,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-26 13:00:30,212 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-26 13:00:30,212 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-26 13:00:30,212 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-26 13:00:30,212 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-26 13:00:30,212 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-26 13:00:30,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-26 13:00:30,213 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-26 13:00:30,213 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-26 13:00:30,213 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-26 13:00:30,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-26 13:00:30,213 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-26 13:00:30,214 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-26 13:00:30,214 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-26 13:00:30,214 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-26 13:00:30,214 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-26 13:00:30,214 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-26 13:00:30,214 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 503becab32df26e7fb48d4b324b68cdf317e346a [2018-11-26 13:00:30,258 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-26 13:00:30,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-26 13:00:30,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-26 13:00:30,274 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-26 13:00:30,274 INFO L276 PluginConnector]: CDTParser initialized [2018-11-26 13:00:30,275 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_longer_false-unreach-call.i [2018-11-26 13:00:30,329 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7eb1a29f/e613529e2da847138e5f29a3adc98ea2/FLAG0d25a6af0 [2018-11-26 13:00:30,808 INFO L307 CDTParser]: Found 1 translation units. [2018-11-26 13:00:30,808 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer_false-unreach-call.i [2018-11-26 13:00:30,824 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7eb1a29f/e613529e2da847138e5f29a3adc98ea2/FLAG0d25a6af0 [2018-11-26 13:00:31,301 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7eb1a29f/e613529e2da847138e5f29a3adc98ea2 [2018-11-26 13:00:31,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-26 13:00:31,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-26 13:00:31,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-26 13:00:31,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-26 13:00:31,309 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-26 13:00:31,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:31" (1/1) ... [2018-11-26 13:00:31,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7cf41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:31, skipping insertion in model container [2018-11-26 13:00:31,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:31" (1/1) ... [2018-11-26 13:00:31,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-26 13:00:31,367 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-26 13:00:31,745 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-26 13:00:31,860 INFO L191 MainTranslator]: Completed pre-run [2018-11-26 13:00:31,911 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-26 13:00:32,079 INFO L195 MainTranslator]: Completed translation [2018-11-26 13:00:32,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32 WrapperNode [2018-11-26 13:00:32,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-26 13:00:32,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-26 13:00:32,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-26 13:00:32,080 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-26 13:00:32,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... [2018-11-26 13:00:32,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... [2018-11-26 13:00:32,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-26 13:00:32,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-26 13:00:32,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-26 13:00:32,185 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-26 13:00:32,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... [2018-11-26 13:00:32,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... [2018-11-26 13:00:32,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... [2018-11-26 13:00:32,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... [2018-11-26 13:00:32,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... [2018-11-26 13:00:32,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... [2018-11-26 13:00:32,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... [2018-11-26 13:00:32,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-26 13:00:32,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-26 13:00:32,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-26 13:00:32,275 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-26 13:00:32,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-26 13:00:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-11-26 13:00:32,339 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-11-26 13:00:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-11-26 13:00:32,339 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-11-26 13:00:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-26 13:00:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-26 13:00:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-26 13:00:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-26 13:00:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-26 13:00:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-26 13:00:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-26 13:00:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-26 13:00:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-26 13:00:32,342 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-26 13:00:33,844 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-26 13:00:33,845 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-11-26 13:00:33,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:33 BoogieIcfgContainer [2018-11-26 13:00:33,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-26 13:00:33,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-26 13:00:33,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-26 13:00:33,849 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-26 13:00:33,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:00:31" (1/3) ... [2018-11-26 13:00:33,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca5e7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:33, skipping insertion in model container [2018-11-26 13:00:33,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:32" (2/3) ... [2018-11-26 13:00:33,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca5e7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:33, skipping insertion in model container [2018-11-26 13:00:33,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:33" (3/3) ... [2018-11-26 13:00:33,854 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer_false-unreach-call.i [2018-11-26 13:00:33,921 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,921 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,921 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,922 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,922 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,922 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,923 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,923 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,923 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,923 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,924 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,924 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,924 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,924 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,924 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,925 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,925 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,925 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,925 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,925 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,926 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,926 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,926 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,926 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,926 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,926 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,927 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,927 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,927 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,927 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,927 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,928 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,928 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,928 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,928 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,928 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,929 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,929 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,929 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,929 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,929 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,930 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,930 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,930 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,930 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,930 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,931 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,931 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,931 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,931 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,931 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,932 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,932 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,932 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,932 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,932 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,933 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,933 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,933 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,933 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,933 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,933 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,934 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,934 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,934 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,934 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,934 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,934 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,935 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,935 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,935 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,935 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,936 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,936 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,936 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,936 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,936 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,936 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,937 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,937 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,937 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,937 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,937 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,938 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,938 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,938 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,938 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,938 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,938 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,939 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,939 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,939 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,939 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,939 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,939 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,940 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,940 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,940 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,940 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,940 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,941 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,941 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,941 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,941 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,941 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,941 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,942 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,942 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,942 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,942 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,942 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,943 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,943 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,943 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,943 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,943 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,944 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,944 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,944 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,944 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,944 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,945 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,945 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,945 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,945 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,945 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,946 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,946 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,946 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,946 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,946 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,946 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,946 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,947 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,947 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,947 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,947 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,947 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,948 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,948 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,948 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,948 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,948 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,948 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,949 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,949 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,949 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,949 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,949 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,949 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,949 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,950 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,950 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,951 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,951 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,951 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,951 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,951 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,952 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,952 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,952 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,952 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,952 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,952 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,953 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,953 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,953 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,953 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,953 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,953 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,953 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,954 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,954 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,954 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,954 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,954 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,954 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,954 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,958 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,958 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,958 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,958 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,959 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,959 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,959 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_enqueue_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,959 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,960 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,961 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,962 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,962 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,962 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,962 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,962 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,962 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,962 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,963 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,963 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,963 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,963 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,963 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,963 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,964 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,964 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,964 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,964 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,964 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,964 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,964 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,965 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,965 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,965 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,965 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,965 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,965 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,965 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,965 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,966 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,966 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,966 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,966 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,966 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,967 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,967 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,967 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,967 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,967 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,967 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,967 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,968 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,968 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,968 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,968 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,968 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,968 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,968 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,968 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,971 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,973 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,973 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,976 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,977 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,977 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,977 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,978 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,978 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,979 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,979 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,980 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dequeue_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,980 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,980 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,980 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,980 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,980 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,980 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,981 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:33,981 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~mem59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:34,003 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-26 13:00:34,004 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-26 13:00:34,013 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-26 13:00:34,028 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-26 13:00:34,049 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-26 13:00:34,050 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-26 13:00:34,050 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-26 13:00:34,050 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-26 13:00:34,050 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-26 13:00:34,050 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-26 13:00:34,051 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-26 13:00:34,051 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-26 13:00:34,051 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-26 13:00:34,079 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 1030places, 1044 transitions [2018-11-26 13:00:34,448 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18030 states. [2018-11-26 13:00:34,450 INFO L276 IsEmpty]: Start isEmpty. Operand 18030 states. [2018-11-26 13:00:34,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2018-11-26 13:00:34,502 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:34,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:00:34,507 INFO L423 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:34,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:34,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1440111327, now seen corresponding path program 1 times [2018-11-26 13:00:34,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:34,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:34,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:34,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:34,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:35,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:35,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-26 13:00:35,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-26 13:00:35,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-26 13:00:35,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-26 13:00:35,401 INFO L87 Difference]: Start difference. First operand 18030 states. Second operand 2 states. [2018-11-26 13:00:35,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:35,637 INFO L93 Difference]: Finished difference Result 18027 states and 47561 transitions. [2018-11-26 13:00:35,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-26 13:00:35,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 846 [2018-11-26 13:00:35,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:35,767 INFO L225 Difference]: With dead ends: 18027 [2018-11-26 13:00:35,767 INFO L226 Difference]: Without dead ends: 17445 [2018-11-26 13:00:35,769 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 [2018-11-26 13:00:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17445 states. [2018-11-26 13:00:36,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17445 to 17445. [2018-11-26 13:00:36,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17445 states. [2018-11-26 13:00:36,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17445 states to 17445 states and 46087 transitions. [2018-11-26 13:00:36,452 INFO L78 Accepts]: Start accepts. Automaton has 17445 states and 46087 transitions. Word has length 846 [2018-11-26 13:00:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:36,455 INFO L480 AbstractCegarLoop]: Abstraction has 17445 states and 46087 transitions. [2018-11-26 13:00:36,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-26 13:00:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand 17445 states and 46087 transitions. [2018-11-26 13:00:36,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2018-11-26 13:00:36,495 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:36,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:00:36,496 INFO L423 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:36,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:36,497 INFO L82 PathProgramCache]: Analyzing trace with hash -391726371, now seen corresponding path program 1 times [2018-11-26 13:00:36,497 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:36,497 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:36,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:36,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:36,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:37,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:37,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-26 13:00:37,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-26 13:00:37,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-26 13:00:37,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-26 13:00:37,180 INFO L87 Difference]: Start difference. First operand 17445 states and 46087 transitions. Second operand 4 states. [2018-11-26 13:00:37,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:37,506 INFO L93 Difference]: Finished difference Result 17283 states and 45491 transitions. [2018-11-26 13:00:37,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-26 13:00:37,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 879 [2018-11-26 13:00:37,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:37,561 INFO L225 Difference]: With dead ends: 17283 [2018-11-26 13:00:37,561 INFO L226 Difference]: Without dead ends: 17283 [2018-11-26 13:00:37,562 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 [2018-11-26 13:00:37,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17283 states. [2018-11-26 13:00:38,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17283 to 17283. [2018-11-26 13:00:38,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17283 states. [2018-11-26 13:00:38,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17283 states to 17283 states and 45491 transitions. [2018-11-26 13:00:38,238 INFO L78 Accepts]: Start accepts. Automaton has 17283 states and 45491 transitions. Word has length 879 [2018-11-26 13:00:38,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:38,240 INFO L480 AbstractCegarLoop]: Abstraction has 17283 states and 45491 transitions. [2018-11-26 13:00:38,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-26 13:00:38,240 INFO L276 IsEmpty]: Start isEmpty. Operand 17283 states and 45491 transitions. [2018-11-26 13:00:38,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2018-11-26 13:00:38,257 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:38,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:00:38,258 INFO L423 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:38,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:38,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1210101582, now seen corresponding path program 1 times [2018-11-26 13:00:38,259 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:38,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:38,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:38,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:38,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:39,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:39,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-26 13:00:39,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-26 13:00:39,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-26 13:00:39,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-26 13:00:39,058 INFO L87 Difference]: Start difference. First operand 17283 states and 45491 transitions. Second operand 3 states. [2018-11-26 13:00:39,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:39,152 INFO L93 Difference]: Finished difference Result 12195 states and 31301 transitions. [2018-11-26 13:00:39,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-26 13:00:39,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 885 [2018-11-26 13:00:39,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:39,184 INFO L225 Difference]: With dead ends: 12195 [2018-11-26 13:00:39,185 INFO L226 Difference]: Without dead ends: 12006 [2018-11-26 13:00:39,185 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 [2018-11-26 13:00:39,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12006 states. [2018-11-26 13:00:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12006 to 12006. [2018-11-26 13:00:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12006 states. [2018-11-26 13:00:39,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12006 states to 12006 states and 30821 transitions. [2018-11-26 13:00:39,456 INFO L78 Accepts]: Start accepts. Automaton has 12006 states and 30821 transitions. Word has length 885 [2018-11-26 13:00:39,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:39,458 INFO L480 AbstractCegarLoop]: Abstraction has 12006 states and 30821 transitions. [2018-11-26 13:00:39,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-26 13:00:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 12006 states and 30821 transitions. [2018-11-26 13:00:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 895 [2018-11-26 13:00:39,473 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:39,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:00:39,474 INFO L423 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:39,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:39,475 INFO L82 PathProgramCache]: Analyzing trace with hash 2113763334, now seen corresponding path program 1 times [2018-11-26 13:00:39,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:39,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:39,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:39,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:39,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:40,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:40,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:40,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-26 13:00:40,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-26 13:00:40,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-26 13:00:40,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-26 13:00:40,176 INFO L87 Difference]: Start difference. First operand 12006 states and 30821 transitions. Second operand 4 states. [2018-11-26 13:00:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:40,326 INFO L93 Difference]: Finished difference Result 20568 states and 53997 transitions. [2018-11-26 13:00:40,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-26 13:00:40,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 894 [2018-11-26 13:00:40,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:40,372 INFO L225 Difference]: With dead ends: 20568 [2018-11-26 13:00:40,372 INFO L226 Difference]: Without dead ends: 20496 [2018-11-26 13:00:40,373 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 [2018-11-26 13:00:40,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20496 states. [2018-11-26 13:00:40,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20496 to 12078. [2018-11-26 13:00:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12078 states. [2018-11-26 13:00:40,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12078 states to 12078 states and 31001 transitions. [2018-11-26 13:00:40,619 INFO L78 Accepts]: Start accepts. Automaton has 12078 states and 31001 transitions. Word has length 894 [2018-11-26 13:00:40,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:40,620 INFO L480 AbstractCegarLoop]: Abstraction has 12078 states and 31001 transitions. [2018-11-26 13:00:40,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-26 13:00:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 12078 states and 31001 transitions. [2018-11-26 13:00:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2018-11-26 13:00:40,632 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:40,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:00:40,633 INFO L423 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:40,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:40,633 INFO L82 PathProgramCache]: Analyzing trace with hash 446226385, now seen corresponding path program 1 times [2018-11-26 13:00:40,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:40,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:40,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:40,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:40,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:42,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:42,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-11-26 13:00:42,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-26 13:00:42,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-26 13:00:42,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-11-26 13:00:42,698 INFO L87 Difference]: Start difference. First operand 12078 states and 31001 transitions. Second operand 16 states. [2018-11-26 13:00:48,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:48,175 INFO L93 Difference]: Finished difference Result 12166 states and 31231 transitions. [2018-11-26 13:00:48,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-26 13:00:48,176 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 895 [2018-11-26 13:00:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:48,201 INFO L225 Difference]: With dead ends: 12166 [2018-11-26 13:00:48,202 INFO L226 Difference]: Without dead ends: 12166 [2018-11-26 13:00:48,202 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=225, Invalid=531, Unknown=0, NotChecked=0, Total=756 [2018-11-26 13:00:48,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12166 states. [2018-11-26 13:00:48,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12166 to 12120. [2018-11-26 13:00:48,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12120 states. [2018-11-26 13:00:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12120 states to 12120 states and 31111 transitions. [2018-11-26 13:00:48,388 INFO L78 Accepts]: Start accepts. Automaton has 12120 states and 31111 transitions. Word has length 895 [2018-11-26 13:00:48,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:48,390 INFO L480 AbstractCegarLoop]: Abstraction has 12120 states and 31111 transitions. [2018-11-26 13:00:48,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-26 13:00:48,390 INFO L276 IsEmpty]: Start isEmpty. Operand 12120 states and 31111 transitions. [2018-11-26 13:00:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2018-11-26 13:00:48,401 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:48,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:00:48,403 INFO L423 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:48,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:48,403 INFO L82 PathProgramCache]: Analyzing trace with hash 70192944, now seen corresponding path program 1 times [2018-11-26 13:00:48,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:48,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:48,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:48,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:48,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:50,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:50,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-26 13:00:50,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-26 13:00:50,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-26 13:00:50,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-11-26 13:00:50,323 INFO L87 Difference]: Start difference. First operand 12120 states and 31111 transitions. Second operand 17 states. [2018-11-26 13:00:54,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:54,866 INFO L93 Difference]: Finished difference Result 13638 states and 35117 transitions. [2018-11-26 13:00:54,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-26 13:00:54,866 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 897 [2018-11-26 13:00:54,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:54,903 INFO L225 Difference]: With dead ends: 13638 [2018-11-26 13:00:54,903 INFO L226 Difference]: Without dead ends: 13638 [2018-11-26 13:00:54,904 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=266, Invalid=604, Unknown=0, NotChecked=0, Total=870 [2018-11-26 13:00:54,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13638 states. [2018-11-26 13:00:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13638 to 12718. [2018-11-26 13:00:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12718 states. [2018-11-26 13:00:55,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12718 states to 12718 states and 32671 transitions. [2018-11-26 13:00:55,151 INFO L78 Accepts]: Start accepts. Automaton has 12718 states and 32671 transitions. Word has length 897 [2018-11-26 13:00:55,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:55,152 INFO L480 AbstractCegarLoop]: Abstraction has 12718 states and 32671 transitions. [2018-11-26 13:00:55,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-26 13:00:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand 12718 states and 32671 transitions. [2018-11-26 13:00:55,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2018-11-26 13:00:55,171 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:55,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:00:55,172 INFO L423 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:55,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:55,173 INFO L82 PathProgramCache]: Analyzing trace with hash -115729348, now seen corresponding path program 2 times [2018-11-26 13:00:55,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:55,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:55,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:55,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:55,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:57,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:57,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-11-26 13:00:57,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-26 13:00:57,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-26 13:00:57,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2018-11-26 13:00:57,180 INFO L87 Difference]: Start difference. First operand 12718 states and 32671 transitions. Second operand 19 states. [2018-11-26 13:01:03,373 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2018-11-26 13:01:03,551 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2018-11-26 13:01:03,731 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2018-11-26 13:01:03,953 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2018-11-26 13:01:04,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:01:04,301 INFO L93 Difference]: Finished difference Result 12626 states and 32385 transitions. [2018-11-26 13:01:04,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-26 13:01:04,301 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 897 [2018-11-26 13:01:04,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:01:04,322 INFO L225 Difference]: With dead ends: 12626 [2018-11-26 13:01:04,323 INFO L226 Difference]: Without dead ends: 12626 [2018-11-26 13:01:04,323 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2018-11-26 13:01:04,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12626 states. [2018-11-26 13:01:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12626 to 11982. [2018-11-26 13:01:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11982 states. [2018-11-26 13:01:04,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11982 states to 11982 states and 30705 transitions. [2018-11-26 13:01:04,613 INFO L78 Accepts]: Start accepts. Automaton has 11982 states and 30705 transitions. Word has length 897 [2018-11-26 13:01:04,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:01:04,615 INFO L480 AbstractCegarLoop]: Abstraction has 11982 states and 30705 transitions. [2018-11-26 13:01:04,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-26 13:01:04,615 INFO L276 IsEmpty]: Start isEmpty. Operand 11982 states and 30705 transitions. [2018-11-26 13:01:04,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2018-11-26 13:01:04,631 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:01:04,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:01:04,632 INFO L423 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:01:04,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:01:04,633 INFO L82 PathProgramCache]: Analyzing trace with hash 145782903, now seen corresponding path program 1 times [2018-11-26 13:01:04,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:01:04,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:01:04,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:04,636 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:01:04,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:01:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:01:06,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:01:06,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-26 13:01:06,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-26 13:01:06,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-26 13:01:06,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-11-26 13:01:06,304 INFO L87 Difference]: Start difference. First operand 11982 states and 30705 transitions. Second operand 13 states. [2018-11-26 13:01:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:01:10,232 INFO L93 Difference]: Finished difference Result 11979 states and 30701 transitions. [2018-11-26 13:01:10,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-26 13:01:10,232 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 899 [2018-11-26 13:01:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:01:10,250 INFO L225 Difference]: With dead ends: 11979 [2018-11-26 13:01:10,250 INFO L226 Difference]: Without dead ends: 11979 [2018-11-26 13:01:10,251 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2018-11-26 13:01:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11979 states. [2018-11-26 13:01:10,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11979 to 11979. [2018-11-26 13:01:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11979 states. [2018-11-26 13:01:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11979 states to 11979 states and 30701 transitions. [2018-11-26 13:01:10,435 INFO L78 Accepts]: Start accepts. Automaton has 11979 states and 30701 transitions. Word has length 899 [2018-11-26 13:01:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:01:10,436 INFO L480 AbstractCegarLoop]: Abstraction has 11979 states and 30701 transitions. [2018-11-26 13:01:10,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-26 13:01:10,436 INFO L276 IsEmpty]: Start isEmpty. Operand 11979 states and 30701 transitions. [2018-11-26 13:01:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2018-11-26 13:01:10,445 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:01:10,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:01:10,446 INFO L423 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:01:10,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:01:10,447 INFO L82 PathProgramCache]: Analyzing trace with hash -702090416, now seen corresponding path program 1 times [2018-11-26 13:01:10,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:01:10,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:01:10,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:10,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:01:10,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:01:11,268 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 28 [2018-11-26 13:01:11,410 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 32 [2018-11-26 13:01:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:01:13,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:01:13,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-11-26 13:01:13,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-26 13:01:13,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-26 13:01:13,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2018-11-26 13:01:13,672 INFO L87 Difference]: Start difference. First operand 11979 states and 30701 transitions. Second operand 26 states. [2018-11-26 13:01:22,528 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 52 [2018-11-26 13:01:22,783 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 52 [2018-11-26 13:01:22,941 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2018-11-26 13:01:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:01:24,294 INFO L93 Difference]: Finished difference Result 12005 states and 30767 transitions. [2018-11-26 13:01:24,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-26 13:01:24,295 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 900 [2018-11-26 13:01:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:01:24,311 INFO L225 Difference]: With dead ends: 12005 [2018-11-26 13:01:24,312 INFO L226 Difference]: Without dead ends: 11993 [2018-11-26 13:01:24,313 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=492, Invalid=1958, Unknown=0, NotChecked=0, Total=2450 [2018-11-26 13:01:24,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11993 states. [2018-11-26 13:01:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11993 to 11993. [2018-11-26 13:01:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11993 states. [2018-11-26 13:01:24,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11993 states to 11993 states and 30749 transitions. [2018-11-26 13:01:24,508 INFO L78 Accepts]: Start accepts. Automaton has 11993 states and 30749 transitions. Word has length 900 [2018-11-26 13:01:24,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:01:24,510 INFO L480 AbstractCegarLoop]: Abstraction has 11993 states and 30749 transitions. [2018-11-26 13:01:24,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-26 13:01:24,510 INFO L276 IsEmpty]: Start isEmpty. Operand 11993 states and 30749 transitions. [2018-11-26 13:01:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2018-11-26 13:01:24,522 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:01:24,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:01:24,524 INFO L423 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:01:24,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:01:24,524 INFO L82 PathProgramCache]: Analyzing trace with hash 479529199, now seen corresponding path program 1 times [2018-11-26 13:01:24,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:01:24,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:01:24,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:24,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:01:24,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:01:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:01:27,634 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:01:27,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2018-11-26 13:01:27,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-26 13:01:27,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-26 13:01:27,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2018-11-26 13:01:27,636 INFO L87 Difference]: Start difference. First operand 11993 states and 30749 transitions. Second operand 27 states. [2018-11-26 13:01:37,012 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 54 [2018-11-26 13:01:37,186 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 57 [2018-11-26 13:01:37,450 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 56 [2018-11-26 13:01:37,615 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 58 [2018-11-26 13:01:39,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:01:39,062 INFO L93 Difference]: Finished difference Result 13619 states and 35097 transitions. [2018-11-26 13:01:39,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-26 13:01:39,062 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 902 [2018-11-26 13:01:39,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:01:39,079 INFO L225 Difference]: With dead ends: 13619 [2018-11-26 13:01:39,079 INFO L226 Difference]: Without dead ends: 13115 [2018-11-26 13:01:39,080 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=512, Invalid=1840, Unknown=0, NotChecked=0, Total=2352 [2018-11-26 13:01:39,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13115 states. [2018-11-26 13:01:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13115 to 11731. [2018-11-26 13:01:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11731 states. [2018-11-26 13:01:39,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11731 states to 11731 states and 30119 transitions. [2018-11-26 13:01:39,247 INFO L78 Accepts]: Start accepts. Automaton has 11731 states and 30119 transitions. Word has length 902 [2018-11-26 13:01:39,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:01:39,248 INFO L480 AbstractCegarLoop]: Abstraction has 11731 states and 30119 transitions. [2018-11-26 13:01:39,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-26 13:01:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 11731 states and 30119 transitions. [2018-11-26 13:01:39,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2018-11-26 13:01:39,256 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:01:39,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:01:39,257 INFO L423 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:01:39,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:01:39,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1724178511, now seen corresponding path program 2 times [2018-11-26 13:01:39,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:01:39,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:01:39,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:39,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:01:39,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:01:42,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:01:42,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:01:42,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-11-26 13:01:42,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-11-26 13:01:42,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-11-26 13:01:42,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2018-11-26 13:01:42,540 INFO L87 Difference]: Start difference. First operand 11731 states and 30119 transitions. Second operand 28 states. [2018-11-26 13:01:55,095 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2018-11-26 13:01:55,276 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2018-11-26 13:01:55,546 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2018-11-26 13:01:55,713 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2018-11-26 13:01:57,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:01:57,465 INFO L93 Difference]: Finished difference Result 13253 states and 34197 transitions. [2018-11-26 13:01:57,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-26 13:01:57,465 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 902 [2018-11-26 13:01:57,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:01:57,481 INFO L225 Difference]: With dead ends: 13253 [2018-11-26 13:01:57,481 INFO L226 Difference]: Without dead ends: 13181 [2018-11-26 13:01:57,482 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=546, Invalid=2210, Unknown=0, NotChecked=0, Total=2756 [2018-11-26 13:01:57,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13181 states. [2018-11-26 13:01:57,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13181 to 11593. [2018-11-26 13:01:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11593 states. [2018-11-26 13:01:57,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11593 states to 11593 states and 29759 transitions. [2018-11-26 13:01:57,619 INFO L78 Accepts]: Start accepts. Automaton has 11593 states and 29759 transitions. Word has length 902 [2018-11-26 13:01:57,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:01:57,620 INFO L480 AbstractCegarLoop]: Abstraction has 11593 states and 29759 transitions. [2018-11-26 13:01:57,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-11-26 13:01:57,621 INFO L276 IsEmpty]: Start isEmpty. Operand 11593 states and 29759 transitions. [2018-11-26 13:01:57,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2018-11-26 13:01:57,629 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:01:57,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:01:57,629 INFO L423 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:01:57,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:01:57,630 INFO L82 PathProgramCache]: Analyzing trace with hash 61367563, now seen corresponding path program 3 times [2018-11-26 13:01:57,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:01:57,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:01:57,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:57,632 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:01:57,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:01:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:02:00,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:02:00,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:02:00,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-11-26 13:02:00,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-11-26 13:02:00,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-11-26 13:02:00,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2018-11-26 13:02:00,984 INFO L87 Difference]: Start difference. First operand 11593 states and 29759 transitions. Second operand 28 states. [2018-11-26 13:02:14,738 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2018-11-26 13:02:15,226 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2018-11-26 13:02:15,409 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2018-11-26 13:02:15,681 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2018-11-26 13:02:15,851 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2018-11-26 13:02:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:02:17,866 INFO L93 Difference]: Finished difference Result 13103 states and 33807 transitions. [2018-11-26 13:02:17,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-26 13:02:17,866 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 902 [2018-11-26 13:02:17,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:02:17,881 INFO L225 Difference]: With dead ends: 13103 [2018-11-26 13:02:17,881 INFO L226 Difference]: Without dead ends: 13067 [2018-11-26 13:02:17,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=593, Invalid=2377, Unknown=0, NotChecked=0, Total=2970 [2018-11-26 13:02:17,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13067 states. [2018-11-26 13:02:18,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13067 to 11547. [2018-11-26 13:02:18,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11547 states. [2018-11-26 13:02:18,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11547 states to 11547 states and 29639 transitions. [2018-11-26 13:02:18,026 INFO L78 Accepts]: Start accepts. Automaton has 11547 states and 29639 transitions. Word has length 902 [2018-11-26 13:02:18,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:02:18,026 INFO L480 AbstractCegarLoop]: Abstraction has 11547 states and 29639 transitions. [2018-11-26 13:02:18,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-11-26 13:02:18,026 INFO L276 IsEmpty]: Start isEmpty. Operand 11547 states and 29639 transitions. [2018-11-26 13:02:18,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2018-11-26 13:02:18,036 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:02:18,036 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:02:18,036 INFO L423 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:02:18,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:02:18,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1141456109, now seen corresponding path program 4 times [2018-11-26 13:02:18,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:02:18,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:02:18,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:02:18,038 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:02:18,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:02:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:02:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:02:21,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:02:21,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-11-26 13:02:21,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-11-26 13:02:21,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-11-26 13:02:21,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2018-11-26 13:02:21,464 INFO L87 Difference]: Start difference. First operand 11547 states and 29639 transitions. Second operand 28 states. [2018-11-26 13:02:33,557 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2018-11-26 13:02:33,867 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2018-11-26 13:02:34,142 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2018-11-26 13:02:34,307 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2018-11-26 13:02:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:02:35,547 INFO L93 Difference]: Finished difference Result 11519 states and 29581 transitions. [2018-11-26 13:02:35,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-26 13:02:35,547 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 902 [2018-11-26 13:02:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:02:35,560 INFO L225 Difference]: With dead ends: 11519 [2018-11-26 13:02:35,560 INFO L226 Difference]: Without dead ends: 11495 [2018-11-26 13:02:35,561 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=527, Invalid=2125, Unknown=0, NotChecked=0, Total=2652 [2018-11-26 13:02:35,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11495 states. [2018-11-26 13:02:35,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11495 to 10995. [2018-11-26 13:02:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10995 states. [2018-11-26 13:02:35,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10995 states to 10995 states and 28177 transitions. [2018-11-26 13:02:35,694 INFO L78 Accepts]: Start accepts. Automaton has 10995 states and 28177 transitions. Word has length 902 [2018-11-26 13:02:35,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:02:35,694 INFO L480 AbstractCegarLoop]: Abstraction has 10995 states and 28177 transitions. [2018-11-26 13:02:35,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-11-26 13:02:35,695 INFO L276 IsEmpty]: Start isEmpty. Operand 10995 states and 28177 transitions. [2018-11-26 13:02:35,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2018-11-26 13:02:35,707 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:02:35,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:02:35,708 INFO L423 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:02:35,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:02:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash -381866767, now seen corresponding path program 1 times [2018-11-26 13:02:35,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:02:35,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:02:35,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:02:35,710 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:02:35,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:02:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:02:36,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:02:36,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:02:36,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-26 13:02:36,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-26 13:02:36,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-26 13:02:36,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-26 13:02:36,110 INFO L87 Difference]: Start difference. First operand 10995 states and 28177 transitions. Second operand 3 states. [2018-11-26 13:02:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:02:36,167 INFO L93 Difference]: Finished difference Result 5694 states and 13062 transitions. [2018-11-26 13:02:36,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-26 13:02:36,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 968 [2018-11-26 13:02:36,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:02:36,174 INFO L225 Difference]: With dead ends: 5694 [2018-11-26 13:02:36,174 INFO L226 Difference]: Without dead ends: 5694 [2018-11-26 13:02:36,175 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 [2018-11-26 13:02:36,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2018-11-26 13:02:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 4803. [2018-11-26 13:02:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4803 states. [2018-11-26 13:02:36,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 10824 transitions. [2018-11-26 13:02:36,228 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 10824 transitions. Word has length 968 [2018-11-26 13:02:36,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:02:36,229 INFO L480 AbstractCegarLoop]: Abstraction has 4803 states and 10824 transitions. [2018-11-26 13:02:36,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-26 13:02:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 10824 transitions. [2018-11-26 13:02:36,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2018-11-26 13:02:36,241 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:02:36,241 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:02:36,242 INFO L423 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:02:36,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:02:36,242 INFO L82 PathProgramCache]: Analyzing trace with hash 2056468558, now seen corresponding path program 1 times [2018-11-26 13:02:36,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:02:36,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:02:36,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:02:36,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:02:36,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:02:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:02:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:02:39,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:02:39,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2018-11-26 13:02:39,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-11-26 13:02:39,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-11-26 13:02:39,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2018-11-26 13:02:39,484 INFO L87 Difference]: Start difference. First operand 4803 states and 10824 transitions. Second operand 29 states. [2018-11-26 13:02:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:02:51,203 INFO L93 Difference]: Finished difference Result 5594 states and 12813 transitions. [2018-11-26 13:02:51,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-26 13:02:51,203 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 969 [2018-11-26 13:02:51,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:02:51,210 INFO L225 Difference]: With dead ends: 5594 [2018-11-26 13:02:51,210 INFO L226 Difference]: Without dead ends: 5594 [2018-11-26 13:02:51,211 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 7 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=667, Invalid=2413, Unknown=0, NotChecked=0, Total=3080 [2018-11-26 13:02:51,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5594 states. [2018-11-26 13:02:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5594 to 5454. [2018-11-26 13:02:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5454 states. [2018-11-26 13:02:51,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 12467 transitions. [2018-11-26 13:02:51,263 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 12467 transitions. Word has length 969 [2018-11-26 13:02:51,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:02:51,264 INFO L480 AbstractCegarLoop]: Abstraction has 5454 states and 12467 transitions. [2018-11-26 13:02:51,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-11-26 13:02:51,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 12467 transitions. [2018-11-26 13:02:51,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2018-11-26 13:02:51,276 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:02:51,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:02:51,277 INFO L423 AbstractCegarLoop]: === Iteration 16 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:02:51,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:02:51,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1169078760, now seen corresponding path program 2 times [2018-11-26 13:02:51,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:02:51,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:02:51,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:02:51,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:02:51,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:02:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:02:55,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:02:55,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:02:55,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2018-11-26 13:02:55,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-11-26 13:02:55,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-11-26 13:02:55,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=707, Unknown=0, NotChecked=0, Total=812 [2018-11-26 13:02:55,201 INFO L87 Difference]: Start difference. First operand 5454 states and 12467 transitions. Second operand 29 states. [2018-11-26 13:03:07,167 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2018-11-26 13:03:08,355 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2018-11-26 13:03:08,517 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2018-11-26 13:03:08,862 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2018-11-26 13:03:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:03:09,154 INFO L93 Difference]: Finished difference Result 5706 states and 13086 transitions. [2018-11-26 13:03:09,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-26 13:03:09,155 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 969 [2018-11-26 13:03:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:03:09,163 INFO L225 Difference]: With dead ends: 5706 [2018-11-26 13:03:09,163 INFO L226 Difference]: Without dead ends: 5706 [2018-11-26 13:03:09,164 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=686, Invalid=2284, Unknown=0, NotChecked=0, Total=2970 [2018-11-26 13:03:09,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5706 states. [2018-11-26 13:03:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5706 to 5454. [2018-11-26 13:03:09,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5454 states. [2018-11-26 13:03:09,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 12467 transitions. [2018-11-26 13:03:09,218 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 12467 transitions. Word has length 969 [2018-11-26 13:03:09,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:03:09,219 INFO L480 AbstractCegarLoop]: Abstraction has 5454 states and 12467 transitions. [2018-11-26 13:03:09,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-11-26 13:03:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 12467 transitions. [2018-11-26 13:03:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2018-11-26 13:03:09,231 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:03:09,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:03:09,232 INFO L423 AbstractCegarLoop]: === Iteration 17 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:03:09,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:03:09,232 INFO L82 PathProgramCache]: Analyzing trace with hash -928261901, now seen corresponding path program 1 times [2018-11-26 13:03:09,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:03:09,232 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:03:09,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:03:09,234 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:03:09,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:03:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:03:10,657 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 31 [2018-11-26 13:03:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:03:14,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:03:14,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2018-11-26 13:03:14,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-11-26 13:03:14,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-11-26 13:03:14,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=977, Unknown=0, NotChecked=0, Total=1122 [2018-11-26 13:03:14,225 INFO L87 Difference]: Start difference. First operand 5454 states and 12467 transitions. Second operand 34 states. [2018-11-26 13:03:25,679 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 56 [2018-11-26 13:03:25,927 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2018-11-26 13:03:26,122 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 56 [2018-11-26 13:03:26,297 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 58 [2018-11-26 13:03:27,016 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2018-11-26 13:03:27,392 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2018-11-26 13:03:28,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:03:28,454 INFO L93 Difference]: Finished difference Result 7044 states and 16479 transitions. [2018-11-26 13:03:28,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-26 13:03:28,455 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 973 [2018-11-26 13:03:28,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:03:28,464 INFO L225 Difference]: With dead ends: 7044 [2018-11-26 13:03:28,464 INFO L226 Difference]: Without dead ends: 7044 [2018-11-26 13:03:28,465 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 15 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=760, Invalid=3022, Unknown=0, NotChecked=0, Total=3782 [2018-11-26 13:03:28,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2018-11-26 13:03:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 6666. [2018-11-26 13:03:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6666 states. [2018-11-26 13:03:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6666 states to 6666 states and 15541 transitions. [2018-11-26 13:03:28,533 INFO L78 Accepts]: Start accepts. Automaton has 6666 states and 15541 transitions. Word has length 973 [2018-11-26 13:03:28,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:03:28,534 INFO L480 AbstractCegarLoop]: Abstraction has 6666 states and 15541 transitions. [2018-11-26 13:03:28,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-11-26 13:03:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 6666 states and 15541 transitions. [2018-11-26 13:03:28,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:03:28,545 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:03:28,546 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:03:28,546 INFO L423 AbstractCegarLoop]: === Iteration 18 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:03:28,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:03:28,547 INFO L82 PathProgramCache]: Analyzing trace with hash -877989480, now seen corresponding path program 1 times [2018-11-26 13:03:28,547 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:03:28,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:03:28,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:03:28,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:03:28,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:03:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:03:30,544 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2018-11-26 13:03:30,736 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 42 [2018-11-26 13:03:30,961 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 41 [2018-11-26 13:03:31,305 WARN L180 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 48 [2018-11-26 13:03:31,600 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 49 [2018-11-26 13:03:31,940 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 50 [2018-11-26 13:03:32,231 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 47 [2018-11-26 13:03:32,505 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 51 [2018-11-26 13:03:32,690 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 46 [2018-11-26 13:03:32,871 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 44 [2018-11-26 13:03:33,073 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 48 [2018-11-26 13:03:33,283 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 49 [2018-11-26 13:03:33,579 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 47 [2018-11-26 13:03:33,851 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 52 [2018-11-26 13:03:34,213 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 53 [2018-11-26 13:03:34,626 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 61 [2018-11-26 13:03:34,953 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 43 [2018-11-26 13:03:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:03:40,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:03:40,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2018-11-26 13:03:40,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-11-26 13:03:40,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-11-26 13:03:40,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=2066, Unknown=0, NotChecked=0, Total=2256 [2018-11-26 13:03:40,393 INFO L87 Difference]: Start difference. First operand 6666 states and 15541 transitions. Second operand 48 states. [2018-11-26 13:04:01,640 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2018-11-26 13:04:02,633 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2018-11-26 13:04:03,001 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2018-11-26 13:04:03,293 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2018-11-26 13:04:03,680 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 82 [2018-11-26 13:04:04,080 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 87 [2018-11-26 13:04:04,443 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 82 [2018-11-26 13:04:05,214 WARN L180 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 91 [2018-11-26 13:04:05,624 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 102 [2018-11-26 13:04:05,954 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 88 [2018-11-26 13:04:06,213 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2018-11-26 13:04:06,411 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2018-11-26 13:04:06,872 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2018-11-26 13:04:07,133 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2018-11-26 13:04:07,498 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2018-11-26 13:04:08,121 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 94 [2018-11-26 13:04:08,603 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2018-11-26 13:04:08,916 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2018-11-26 13:04:09,277 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 86 [2018-11-26 13:04:09,700 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 108 [2018-11-26 13:04:09,953 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2018-11-26 13:04:10,135 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2018-11-26 13:04:11,046 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2018-11-26 13:04:11,292 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2018-11-26 13:04:11,564 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2018-11-26 13:04:11,838 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2018-11-26 13:04:12,084 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2018-11-26 13:04:12,415 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2018-11-26 13:04:12,686 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2018-11-26 13:04:13,031 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2018-11-26 13:04:13,289 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2018-11-26 13:04:13,580 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 98 [2018-11-26 13:04:13,938 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2018-11-26 13:04:14,210 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2018-11-26 13:04:14,506 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-11-26 13:04:14,829 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2018-11-26 13:04:15,395 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-11-26 13:04:15,601 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2018-11-26 13:04:15,903 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2018-11-26 13:04:16,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:04:16,392 INFO L93 Difference]: Finished difference Result 9684 states and 23072 transitions. [2018-11-26 13:04:16,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-11-26 13:04:16,392 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 977 [2018-11-26 13:04:16,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:04:16,402 INFO L225 Difference]: With dead ends: 9684 [2018-11-26 13:04:16,403 INFO L226 Difference]: Without dead ends: 9348 [2018-11-26 13:04:16,405 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 2 SyntacticMatches, 12 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2897 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=1484, Invalid=9022, Unknown=0, NotChecked=0, Total=10506 [2018-11-26 13:04:16,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2018-11-26 13:04:16,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 7728. [2018-11-26 13:04:16,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7728 states. [2018-11-26 13:04:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7728 states to 7728 states and 18056 transitions. [2018-11-26 13:04:16,487 INFO L78 Accepts]: Start accepts. Automaton has 7728 states and 18056 transitions. Word has length 977 [2018-11-26 13:04:16,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:04:16,488 INFO L480 AbstractCegarLoop]: Abstraction has 7728 states and 18056 transitions. [2018-11-26 13:04:16,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-11-26 13:04:16,488 INFO L276 IsEmpty]: Start isEmpty. Operand 7728 states and 18056 transitions. [2018-11-26 13:04:16,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:04:16,499 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:04:16,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:04:16,500 INFO L423 AbstractCegarLoop]: === Iteration 19 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:04:16,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:04:16,501 INFO L82 PathProgramCache]: Analyzing trace with hash 79802584, now seen corresponding path program 2 times [2018-11-26 13:04:16,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:04:16,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:04:16,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:04:16,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:04:16,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:04:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:04:18,234 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2018-11-26 13:04:18,549 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 46 [2018-11-26 13:04:18,722 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 40 [2018-11-26 13:04:19,017 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 42 [2018-11-26 13:04:19,189 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 40 [2018-11-26 13:04:19,365 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 44 [2018-11-26 13:04:20,188 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2018-11-26 13:04:20,381 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2018-11-26 13:04:20,615 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 52 [2018-11-26 13:04:20,867 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 55 [2018-11-26 13:04:21,107 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 47 [2018-11-26 13:04:26,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:04:26,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:04:26,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-26 13:04:26,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-26 13:04:26,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-26 13:04:26,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1981, Unknown=0, NotChecked=0, Total=2162 [2018-11-26 13:04:26,341 INFO L87 Difference]: Start difference. First operand 7728 states and 18056 transitions. Second operand 47 states. [2018-11-26 13:04:45,252 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2018-11-26 13:04:45,910 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2018-11-26 13:04:46,235 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 72 [2018-11-26 13:04:46,536 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2018-11-26 13:04:46,900 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 86 [2018-11-26 13:04:47,332 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 92 [2018-11-26 13:04:47,743 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2018-11-26 13:04:48,481 WARN L180 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 94 [2018-11-26 13:04:48,844 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2018-11-26 13:04:49,545 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 89 [2018-11-26 13:04:49,917 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 102 [2018-11-26 13:04:50,185 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2018-11-26 13:04:50,399 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2018-11-26 13:04:50,882 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2018-11-26 13:04:51,128 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2018-11-26 13:04:51,486 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-11-26 13:04:51,978 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 86 [2018-11-26 13:04:52,490 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2018-11-26 13:04:52,768 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2018-11-26 13:04:53,137 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2018-11-26 13:04:53,482 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 82 [2018-11-26 13:04:53,738 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2018-11-26 13:04:54,623 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-11-26 13:04:54,846 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2018-11-26 13:04:55,099 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2018-11-26 13:04:55,400 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-11-26 13:04:55,602 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2018-11-26 13:04:55,904 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-11-26 13:04:56,182 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2018-11-26 13:04:56,555 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2018-11-26 13:04:56,855 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2018-11-26 13:04:57,172 WARN L180 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2018-11-26 13:04:57,550 WARN L180 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 112 [2018-11-26 13:04:57,867 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2018-11-26 13:04:58,188 WARN L180 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2018-11-26 13:04:58,505 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2018-11-26 13:04:58,849 WARN L180 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2018-11-26 13:04:59,141 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2018-11-26 13:04:59,493 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 110 [2018-11-26 13:04:59,798 WARN L180 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2018-11-26 13:05:00,238 WARN L180 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2018-11-26 13:05:00,520 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2018-11-26 13:05:00,919 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2018-11-26 13:05:01,276 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2018-11-26 13:05:01,903 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2018-11-26 13:05:02,141 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2018-11-26 13:05:02,477 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2018-11-26 13:05:02,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:05:02,887 INFO L93 Difference]: Finished difference Result 10188 states and 24189 transitions. [2018-11-26 13:05:02,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-11-26 13:05:02,887 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 977 [2018-11-26 13:05:02,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:05:02,899 INFO L225 Difference]: With dead ends: 10188 [2018-11-26 13:05:02,899 INFO L226 Difference]: Without dead ends: 9852 [2018-11-26 13:05:02,902 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 2 SyntacticMatches, 12 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3093 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=1724, Invalid=10048, Unknown=0, NotChecked=0, Total=11772 [2018-11-26 13:05:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9852 states. [2018-11-26 13:05:02,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9852 to 7728. [2018-11-26 13:05:02,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7728 states. [2018-11-26 13:05:02,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7728 states to 7728 states and 18056 transitions. [2018-11-26 13:05:02,991 INFO L78 Accepts]: Start accepts. Automaton has 7728 states and 18056 transitions. Word has length 977 [2018-11-26 13:05:02,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:05:02,992 INFO L480 AbstractCegarLoop]: Abstraction has 7728 states and 18056 transitions. [2018-11-26 13:05:02,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-26 13:05:02,993 INFO L276 IsEmpty]: Start isEmpty. Operand 7728 states and 18056 transitions. [2018-11-26 13:05:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:05:03,004 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:05:03,004 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:05:03,005 INFO L423 AbstractCegarLoop]: === Iteration 20 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:05:03,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:05:03,005 INFO L82 PathProgramCache]: Analyzing trace with hash 315245996, now seen corresponding path program 3 times [2018-11-26 13:05:03,005 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:05:03,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:05:03,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:05:03,007 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:05:03,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:05:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:05:04,284 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 41 [2018-11-26 13:05:04,675 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 51 [2018-11-26 13:05:04,822 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2018-11-26 13:05:05,187 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2018-11-26 13:05:05,383 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 41 [2018-11-26 13:05:05,597 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 40 [2018-11-26 13:05:05,883 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 47 [2018-11-26 13:05:06,142 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 42 [2018-11-26 13:05:06,493 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 40 [2018-11-26 13:05:06,721 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 45 [2018-11-26 13:05:06,909 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2018-11-26 13:05:07,087 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 41 [2018-11-26 13:05:07,315 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2018-11-26 13:05:07,584 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 48 [2018-11-26 13:05:07,793 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 49 [2018-11-26 13:05:08,051 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 45 [2018-11-26 13:05:08,284 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 50 [2018-11-26 13:05:08,542 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 49 [2018-11-26 13:05:08,834 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 53 [2018-11-26 13:05:09,102 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 46 [2018-11-26 13:05:09,569 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2018-11-26 13:05:09,725 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 39 [2018-11-26 13:05:14,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:05:14,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:05:14,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2018-11-26 13:05:14,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-26 13:05:14,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-26 13:05:14,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1835, Unknown=0, NotChecked=0, Total=2070 [2018-11-26 13:05:14,188 INFO L87 Difference]: Start difference. First operand 7728 states and 18056 transitions. Second operand 46 states. [2018-11-26 13:05:25,369 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2018-11-26 13:05:25,685 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 72 [2018-11-26 13:05:25,972 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2018-11-26 13:05:26,316 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 82 [2018-11-26 13:05:26,696 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 88 [2018-11-26 13:05:27,052 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2018-11-26 13:05:27,893 WARN L180 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2018-11-26 13:05:28,272 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 90 [2018-11-26 13:05:28,524 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2018-11-26 13:05:28,756 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2018-11-26 13:05:29,367 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 72 [2018-11-26 13:05:29,553 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2018-11-26 13:05:29,732 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2018-11-26 13:05:30,141 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2018-11-26 13:05:30,382 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2018-11-26 13:05:30,742 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 87 [2018-11-26 13:05:31,172 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 89 [2018-11-26 13:05:31,722 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2018-11-26 13:05:32,033 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 80 [2018-11-26 13:05:32,376 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 84 [2018-11-26 13:05:32,762 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 101 [2018-11-26 13:05:33,047 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 81 [2018-11-26 13:05:33,266 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2018-11-26 13:05:33,483 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 64 [2018-11-26 13:05:34,189 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2018-11-26 13:05:34,394 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-11-26 13:05:34,645 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2018-11-26 13:05:34,896 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2018-11-26 13:05:35,118 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2018-11-26 13:05:35,439 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2018-11-26 13:05:35,699 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2018-11-26 13:05:36,031 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2018-11-26 13:05:36,296 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2018-11-26 13:05:36,590 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2018-11-26 13:05:36,919 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2018-11-26 13:05:37,175 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-11-26 13:05:37,468 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-11-26 13:05:37,744 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2018-11-26 13:05:38,333 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-11-26 13:05:38,560 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-11-26 13:05:38,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:05:38,862 INFO L93 Difference]: Finished difference Result 11461 states and 27353 transitions. [2018-11-26 13:05:38,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-11-26 13:05:38,862 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 977 [2018-11-26 13:05:38,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:05:38,875 INFO L225 Difference]: With dead ends: 11461 [2018-11-26 13:05:38,875 INFO L226 Difference]: Without dead ends: 11125 [2018-11-26 13:05:38,877 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 2 SyntacticMatches, 11 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3228 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=1355, Invalid=8947, Unknown=0, NotChecked=0, Total=10302 [2018-11-26 13:05:38,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2018-11-26 13:05:38,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 7928. [2018-11-26 13:05:38,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7928 states. [2018-11-26 13:05:38,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 18576 transitions. [2018-11-26 13:05:38,973 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 18576 transitions. Word has length 977 [2018-11-26 13:05:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:05:38,974 INFO L480 AbstractCegarLoop]: Abstraction has 7928 states and 18576 transitions. [2018-11-26 13:05:38,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-26 13:05:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 18576 transitions. [2018-11-26 13:05:38,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:05:38,989 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:05:38,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:05:38,990 INFO L423 AbstractCegarLoop]: === Iteration 21 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:05:38,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:05:38,991 INFO L82 PathProgramCache]: Analyzing trace with hash 2099299062, now seen corresponding path program 4 times [2018-11-26 13:05:38,992 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:05:38,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:05:38,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:05:38,994 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:05:38,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:05:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:05:40,953 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2018-11-26 13:05:41,175 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2018-11-26 13:05:41,458 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 45 [2018-11-26 13:05:41,729 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 49 [2018-11-26 13:05:41,986 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 45 [2018-11-26 13:05:42,248 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 43 [2018-11-26 13:05:42,549 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 48 [2018-11-26 13:05:42,860 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 46 [2018-11-26 13:05:43,197 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 44 [2018-11-26 13:05:43,517 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 48 [2018-11-26 13:05:43,775 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 47 [2018-11-26 13:05:43,978 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2018-11-26 13:05:44,180 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2018-11-26 13:05:44,396 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2018-11-26 13:05:44,680 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 50 [2018-11-26 13:05:44,930 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 56 [2018-11-26 13:05:45,206 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 60 [2018-11-26 13:05:45,549 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 62 [2018-11-26 13:05:45,923 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 67 [2018-11-26 13:05:46,263 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 58 [2018-11-26 13:05:46,601 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 56 [2018-11-26 13:05:46,984 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 61 [2018-11-26 13:05:47,331 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 52 [2018-11-26 13:05:47,708 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2018-11-26 13:05:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:05:53,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:05:53,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2018-11-26 13:05:53,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-11-26 13:05:53,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-11-26 13:05:53,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=2554, Unknown=0, NotChecked=0, Total=2756 [2018-11-26 13:05:53,224 INFO L87 Difference]: Start difference. First operand 7928 states and 18576 transitions. Second operand 53 states. [2018-11-26 13:06:23,705 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2018-11-26 13:06:23,929 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2018-11-26 13:06:24,159 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2018-11-26 13:06:24,361 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2018-11-26 13:06:25,016 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2018-11-26 13:06:25,470 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 82 [2018-11-26 13:06:25,859 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 89 [2018-11-26 13:06:26,328 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 95 [2018-11-26 13:06:26,854 WARN L180 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 100 [2018-11-26 13:06:27,288 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 94 [2018-11-26 13:06:27,803 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 96 [2018-11-26 13:06:28,326 WARN L180 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 102 [2018-11-26 13:06:28,681 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2018-11-26 13:06:28,984 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2018-11-26 13:06:29,317 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2018-11-26 13:06:29,900 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-11-26 13:06:30,197 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2018-11-26 13:06:30,550 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 79 [2018-11-26 13:06:30,857 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2018-11-26 13:06:31,115 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-11-26 13:06:31,758 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2018-11-26 13:06:32,044 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2018-11-26 13:06:32,624 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2018-11-26 13:06:33,029 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2018-11-26 13:06:33,443 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2018-11-26 13:06:34,066 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2018-11-26 13:06:34,937 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 93 [2018-11-26 13:06:35,169 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2018-11-26 13:06:36,085 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 80 [2018-11-26 13:06:36,350 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2018-11-26 13:06:36,716 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 84 [2018-11-26 13:06:37,232 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 89 [2018-11-26 13:06:37,778 WARN L180 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 117 [2018-11-26 13:06:38,229 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2018-11-26 13:06:38,467 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2018-11-26 13:06:38,753 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2018-11-26 13:06:39,089 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2018-11-26 13:06:39,489 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2018-11-26 13:06:39,833 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2018-11-26 13:06:40,074 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2018-11-26 13:06:40,787 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2018-11-26 13:06:40,988 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2018-11-26 13:06:41,306 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-11-26 13:06:41,654 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2018-11-26 13:06:42,110 WARN L180 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2018-11-26 13:06:42,381 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-11-26 13:06:42,817 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2018-11-26 13:06:43,206 WARN L180 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 116 [2018-11-26 13:06:43,771 WARN L180 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 124 [2018-11-26 13:06:44,164 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2018-11-26 13:06:44,587 WARN L180 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2018-11-26 13:06:45,133 WARN L180 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 131 [2018-11-26 13:06:45,576 WARN L180 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2018-11-26 13:06:45,999 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2018-11-26 13:06:46,469 WARN L180 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2018-11-26 13:06:46,931 WARN L180 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 120 [2018-11-26 13:06:47,311 WARN L180 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2018-11-26 13:06:47,812 WARN L180 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 127 [2018-11-26 13:06:48,228 WARN L180 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 109 [2018-11-26 13:06:48,794 WARN L180 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 134 [2018-11-26 13:06:49,137 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2018-11-26 13:06:49,609 WARN L180 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 124 [2018-11-26 13:06:50,079 WARN L180 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2018-11-26 13:06:50,730 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-11-26 13:06:51,000 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2018-11-26 13:06:51,273 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2018-11-26 13:06:51,772 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2018-11-26 13:06:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:06:52,420 INFO L93 Difference]: Finished difference Result 11025 states and 26383 transitions. [2018-11-26 13:06:52,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-11-26 13:06:52,421 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 977 [2018-11-26 13:06:52,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:06:52,433 INFO L225 Difference]: With dead ends: 11025 [2018-11-26 13:06:52,433 INFO L226 Difference]: Without dead ends: 10689 [2018-11-26 13:06:52,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 2 SyntacticMatches, 8 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4184 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=2045, Invalid=14467, Unknown=0, NotChecked=0, Total=16512 [2018-11-26 13:06:52,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2018-11-26 13:06:52,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 8088. [2018-11-26 13:06:52,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8088 states. [2018-11-26 13:06:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8088 states to 8088 states and 18992 transitions. [2018-11-26 13:06:52,525 INFO L78 Accepts]: Start accepts. Automaton has 8088 states and 18992 transitions. Word has length 977 [2018-11-26 13:06:52,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:06:52,526 INFO L480 AbstractCegarLoop]: Abstraction has 8088 states and 18992 transitions. [2018-11-26 13:06:52,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-11-26 13:06:52,526 INFO L276 IsEmpty]: Start isEmpty. Operand 8088 states and 18992 transitions. [2018-11-26 13:06:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:06:52,537 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:06:52,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:06:52,538 INFO L423 AbstractCegarLoop]: === Iteration 22 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:06:52,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:06:52,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1892180920, now seen corresponding path program 5 times [2018-11-26 13:06:52,539 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:06:52,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:06:52,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:06:52,540 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:06:52,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:06:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:06:54,058 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2018-11-26 13:06:54,290 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 50 [2018-11-26 13:06:54,442 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2018-11-26 13:06:54,931 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2018-11-26 13:06:55,153 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 42 [2018-11-26 13:06:55,367 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 41 [2018-11-26 13:06:55,760 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 48 [2018-11-26 13:06:56,083 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 43 [2018-11-26 13:06:56,541 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 40 [2018-11-26 13:06:56,901 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 50 [2018-11-26 13:06:57,120 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 43 [2018-11-26 13:06:57,313 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2018-11-26 13:06:57,531 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 42 [2018-11-26 13:06:57,748 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 42 [2018-11-26 13:06:58,058 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 47 [2018-11-26 13:06:58,343 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 49 [2018-11-26 13:06:58,633 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 56 [2018-11-26 13:06:59,008 WARN L180 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 58 [2018-11-26 13:06:59,510 WARN L180 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2018-11-26 13:06:59,893 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 52 [2018-11-26 13:07:00,600 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 48 [2018-11-26 13:07:00,779 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 37 [2018-11-26 13:07:01,189 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2018-11-26 13:07:01,360 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 36 [2018-11-26 13:07:05,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:07:05,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:07:05,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-26 13:07:05,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-26 13:07:05,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-26 13:07:05,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1940, Unknown=0, NotChecked=0, Total=2162 [2018-11-26 13:07:05,487 INFO L87 Difference]: Start difference. First operand 8088 states and 18992 transitions. Second operand 47 states. [2018-11-26 13:07:27,022 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2018-11-26 13:07:27,398 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 72 [2018-11-26 13:07:27,719 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2018-11-26 13:07:28,127 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 82 [2018-11-26 13:07:28,600 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 89 [2018-11-26 13:07:28,987 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 87 [2018-11-26 13:07:29,817 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 88 [2018-11-26 13:07:30,294 WARN L180 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 98 [2018-11-26 13:07:30,661 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 85 [2018-11-26 13:07:30,989 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2018-11-26 13:07:31,236 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-11-26 13:07:31,758 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2018-11-26 13:07:32,023 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2018-11-26 13:07:32,499 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2018-11-26 13:07:32,855 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2018-11-26 13:07:33,210 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2018-11-26 13:07:33,711 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2018-11-26 13:07:34,206 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 93 [2018-11-26 13:07:34,697 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 95 [2018-11-26 13:07:34,901 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2018-11-26 13:07:35,566 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2018-11-26 13:07:36,013 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2018-11-26 13:07:36,224 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2018-11-26 13:07:36,572 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 83 [2018-11-26 13:07:36,977 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 105 [2018-11-26 13:07:37,365 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2018-11-26 13:07:37,572 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2018-11-26 13:07:37,774 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-11-26 13:07:38,420 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2018-11-26 13:07:38,594 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2018-11-26 13:07:38,883 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2018-11-26 13:07:39,158 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-11-26 13:07:39,512 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2018-11-26 13:07:39,789 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2018-11-26 13:07:40,126 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2018-11-26 13:07:40,503 WARN L180 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2018-11-26 13:07:41,003 WARN L180 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 120 [2018-11-26 13:07:41,397 WARN L180 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2018-11-26 13:07:41,842 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2018-11-26 13:07:42,166 WARN L180 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2018-11-26 13:07:42,555 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 110 [2018-11-26 13:07:42,920 WARN L180 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2018-11-26 13:07:43,362 WARN L180 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 117 [2018-11-26 13:07:43,701 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 108 [2018-11-26 13:07:44,075 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 117 [2018-11-26 13:07:44,442 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2018-11-26 13:07:44,866 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 124 [2018-11-26 13:07:45,239 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2018-11-26 13:07:45,687 WARN L180 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 131 [2018-11-26 13:07:46,212 WARN L180 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 119 [2018-11-26 13:07:46,596 WARN L180 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2018-11-26 13:07:47,237 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2018-11-26 13:07:47,474 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-11-26 13:07:47,834 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-11-26 13:07:48,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:07:48,249 INFO L93 Difference]: Finished difference Result 12988 states and 31193 transitions. [2018-11-26 13:07:48,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-11-26 13:07:48,249 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 977 [2018-11-26 13:07:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:07:48,266 INFO L225 Difference]: With dead ends: 12988 [2018-11-26 13:07:48,267 INFO L226 Difference]: Without dead ends: 12652 [2018-11-26 13:07:48,268 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 2 SyntacticMatches, 10 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3334 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=1844, Invalid=10366, Unknown=0, NotChecked=0, Total=12210 [2018-11-26 13:07:48,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12652 states. [2018-11-26 13:07:48,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12652 to 8328. [2018-11-26 13:07:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8328 states. [2018-11-26 13:07:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8328 states to 8328 states and 19626 transitions. [2018-11-26 13:07:48,375 INFO L78 Accepts]: Start accepts. Automaton has 8328 states and 19626 transitions. Word has length 977 [2018-11-26 13:07:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:07:48,376 INFO L480 AbstractCegarLoop]: Abstraction has 8328 states and 19626 transitions. [2018-11-26 13:07:48,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-26 13:07:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 8328 states and 19626 transitions. [2018-11-26 13:07:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:07:48,387 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:07:48,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:07:48,388 INFO L423 AbstractCegarLoop]: === Iteration 23 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:07:48,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:07:48,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1270482762, now seen corresponding path program 6 times [2018-11-26 13:07:48,389 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:07:48,389 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:07:48,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:07:48,390 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:07:48,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:07:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:07:49,644 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2018-11-26 13:07:49,883 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 39 [2018-11-26 13:07:50,165 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 47 [2018-11-26 13:07:50,556 WARN L180 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 52 [2018-11-26 13:07:50,785 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2018-11-26 13:07:51,014 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2018-11-26 13:07:51,466 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2018-11-26 13:07:51,746 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 44 [2018-11-26 13:07:51,978 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 44 [2018-11-26 13:07:52,263 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 49 [2018-11-26 13:07:52,546 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 44 [2018-11-26 13:07:53,089 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 42 [2018-11-26 13:07:53,396 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 47 [2018-11-26 13:07:53,603 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 42 [2018-11-26 13:07:53,782 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 39 [2018-11-26 13:07:53,983 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2018-11-26 13:07:54,194 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2018-11-26 13:07:54,481 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 46 [2018-11-26 13:07:54,708 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 50 [2018-11-26 13:07:54,969 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 53 [2018-11-26 13:07:55,335 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 53 [2018-11-26 13:07:55,758 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 61 [2018-11-26 13:07:56,491 WARN L180 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 66 [2018-11-26 13:07:56,835 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 55 [2018-11-26 13:07:57,187 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 55 [2018-11-26 13:07:57,512 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 59 [2018-11-26 13:07:57,715 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 49 [2018-11-26 13:08:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:08:02,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:08:02,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2018-11-26 13:08:02,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-11-26 13:08:02,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-11-26 13:08:02,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2018-11-26 13:08:02,775 INFO L87 Difference]: Start difference. First operand 8328 states and 19626 transitions. Second operand 51 states. [2018-11-26 13:08:31,273 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2018-11-26 13:08:31,491 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2018-11-26 13:08:31,831 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 72 [2018-11-26 13:08:32,211 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 68 [2018-11-26 13:08:32,834 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2018-11-26 13:08:33,261 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2018-11-26 13:08:33,652 WARN L180 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 87 [2018-11-26 13:08:34,125 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 93 [2018-11-26 13:08:34,699 WARN L180 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 100 [2018-11-26 13:08:35,196 WARN L180 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 93 [2018-11-26 13:08:35,850 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 80 [2018-11-26 13:08:36,221 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2018-11-26 13:08:36,689 WARN L180 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2018-11-26 13:08:37,079 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 88 [2018-11-26 13:08:37,523 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2018-11-26 13:08:37,845 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2018-11-26 13:08:38,122 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2018-11-26 13:08:38,673 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2018-11-26 13:08:38,962 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2018-11-26 13:08:39,507 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2018-11-26 13:08:39,928 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2018-11-26 13:08:40,360 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2018-11-26 13:08:40,972 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 85 [2018-11-26 13:08:41,563 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 89 [2018-11-26 13:08:42,243 WARN L180 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 98 [2018-11-26 13:08:42,531 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2018-11-26 13:08:43,123 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2018-11-26 13:08:43,742 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 83 [2018-11-26 13:08:44,176 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2018-11-26 13:08:44,447 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2018-11-26 13:08:44,903 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 83 [2018-11-26 13:08:45,314 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 85 [2018-11-26 13:08:45,658 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 69 [2018-11-26 13:08:46,369 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 85 [2018-11-26 13:08:46,741 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 87 [2018-11-26 13:08:47,020 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 81 [2018-11-26 13:08:47,274 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2018-11-26 13:08:47,522 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2018-11-26 13:08:48,190 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2018-11-26 13:08:48,485 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2018-11-26 13:08:48,915 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2018-11-26 13:08:49,337 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2018-11-26 13:08:49,730 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 128 [2018-11-26 13:08:50,261 WARN L180 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 138 [2018-11-26 13:08:50,660 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2018-11-26 13:08:51,152 WARN L180 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2018-11-26 13:08:51,565 WARN L180 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 124 [2018-11-26 13:08:51,947 WARN L180 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2018-11-26 13:08:52,424 WARN L180 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 134 [2018-11-26 13:08:52,801 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 125 [2018-11-26 13:08:53,217 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 120 [2018-11-26 13:08:53,628 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 110 [2018-11-26 13:08:54,349 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2018-11-26 13:08:54,575 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2018-11-26 13:08:54,837 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2018-11-26 13:08:55,280 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2018-11-26 13:08:55,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:08:55,985 INFO L93 Difference]: Finished difference Result 13873 states and 33424 transitions. [2018-11-26 13:08:55,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-11-26 13:08:55,986 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 977 [2018-11-26 13:08:55,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:08:56,004 INFO L225 Difference]: With dead ends: 13873 [2018-11-26 13:08:56,004 INFO L226 Difference]: Without dead ends: 13537 [2018-11-26 13:08:56,006 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 2 SyntacticMatches, 10 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3505 ImplicationChecksByTransitivity, 27.4s TimeCoverageRelationStatistics Valid=1923, Invalid=11883, Unknown=0, NotChecked=0, Total=13806 [2018-11-26 13:08:56,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13537 states. [2018-11-26 13:08:56,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13537 to 8358. [2018-11-26 13:08:56,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8358 states. [2018-11-26 13:08:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8358 states to 8358 states and 19704 transitions. [2018-11-26 13:08:56,125 INFO L78 Accepts]: Start accepts. Automaton has 8358 states and 19704 transitions. Word has length 977 [2018-11-26 13:08:56,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:08:56,127 INFO L480 AbstractCegarLoop]: Abstraction has 8358 states and 19704 transitions. [2018-11-26 13:08:56,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-11-26 13:08:56,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8358 states and 19704 transitions. [2018-11-26 13:08:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:08:56,140 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:08:56,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:08:56,141 INFO L423 AbstractCegarLoop]: === Iteration 24 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:08:56,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:08:56,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1237073876, now seen corresponding path program 7 times [2018-11-26 13:08:56,142 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:08:56,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:08:56,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:08:56,144 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:08:56,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:08:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:08:57,528 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 40 [2018-11-26 13:08:57,732 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2018-11-26 13:08:57,861 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 27 [2018-11-26 13:08:58,300 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2018-11-26 13:08:58,486 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2018-11-26 13:08:58,709 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 44 [2018-11-26 13:08:58,992 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 39 [2018-11-26 13:08:59,353 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 37 [2018-11-26 13:08:59,610 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 41 [2018-11-26 13:08:59,792 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 37 [2018-11-26 13:08:59,958 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 36 [2018-11-26 13:09:00,138 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 40 [2018-11-26 13:09:00,352 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 40 [2018-11-26 13:09:00,595 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 42 [2018-11-26 13:09:00,863 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 48 [2018-11-26 13:09:01,147 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 48 [2018-11-26 13:09:01,465 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 50 [2018-11-26 13:09:01,817 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 53 [2018-11-26 13:09:02,065 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 45 [2018-11-26 13:09:02,595 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2018-11-26 13:09:02,796 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2018-11-26 13:09:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:09:07,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:09:07,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2018-11-26 13:09:07,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-11-26 13:09:07,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-11-26 13:09:07,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1751, Unknown=0, NotChecked=0, Total=1892 [2018-11-26 13:09:07,233 INFO L87 Difference]: Start difference. First operand 8358 states and 19704 transitions. Second operand 44 states. [2018-11-26 13:09:25,350 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2018-11-26 13:09:25,636 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 66 [2018-11-26 13:09:25,921 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 72 [2018-11-26 13:09:26,237 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2018-11-26 13:09:26,616 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 84 [2018-11-26 13:09:26,948 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2018-11-26 13:09:27,630 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2018-11-26 13:09:27,965 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 88 [2018-11-26 13:09:28,202 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2018-11-26 13:09:28,528 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2018-11-26 13:09:29,157 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2018-11-26 13:09:29,363 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2018-11-26 13:09:29,732 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2018-11-26 13:09:29,992 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2018-11-26 13:09:30,277 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2018-11-26 13:09:30,711 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 77 [2018-11-26 13:09:31,155 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2018-11-26 13:09:31,550 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 87 [2018-11-26 13:09:31,740 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2018-11-26 13:09:32,042 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 71 [2018-11-26 13:09:32,355 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2018-11-26 13:09:32,592 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2018-11-26 13:09:32,940 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 73 [2018-11-26 13:09:33,148 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-11-26 13:09:33,519 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2018-11-26 13:09:33,874 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 79 [2018-11-26 13:09:34,126 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2018-11-26 13:09:35,185 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2018-11-26 13:09:35,402 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2018-11-26 13:09:35,680 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2018-11-26 13:09:35,909 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-11-26 13:09:36,177 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-11-26 13:09:36,484 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2018-11-26 13:09:36,888 WARN L180 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2018-11-26 13:09:37,188 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2018-11-26 13:09:37,597 WARN L180 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 116 [2018-11-26 13:09:37,863 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2018-11-26 13:09:38,181 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2018-11-26 13:09:38,484 WARN L180 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2018-11-26 13:09:38,887 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2018-11-26 13:09:39,160 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2018-11-26 13:09:39,463 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2018-11-26 13:09:39,772 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-11-26 13:09:40,140 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2018-11-26 13:09:40,425 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-11-26 13:09:40,812 WARN L180 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2018-11-26 13:09:41,199 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2018-11-26 13:09:41,496 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2018-11-26 13:09:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:09:42,583 INFO L93 Difference]: Finished difference Result 13843 states and 33359 transitions. [2018-11-26 13:09:42,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-11-26 13:09:42,583 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 977 [2018-11-26 13:09:42,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:09:42,597 INFO L225 Difference]: With dead ends: 13843 [2018-11-26 13:09:42,597 INFO L226 Difference]: Without dead ends: 13507 [2018-11-26 13:09:42,598 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 2 SyntacticMatches, 14 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3387 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=1593, Invalid=10397, Unknown=0, NotChecked=0, Total=11990 [2018-11-26 13:09:42,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13507 states. [2018-11-26 13:09:42,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13507 to 8378. [2018-11-26 13:09:42,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8378 states. [2018-11-26 13:09:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 19756 transitions. [2018-11-26 13:09:42,703 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 19756 transitions. Word has length 977 [2018-11-26 13:09:42,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:09:42,704 INFO L480 AbstractCegarLoop]: Abstraction has 8378 states and 19756 transitions. [2018-11-26 13:09:42,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-11-26 13:09:42,704 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 19756 transitions. [2018-11-26 13:09:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:09:42,716 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:09:42,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:09:42,717 INFO L423 AbstractCegarLoop]: === Iteration 25 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:09:42,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:09:42,717 INFO L82 PathProgramCache]: Analyzing trace with hash 251740948, now seen corresponding path program 8 times [2018-11-26 13:09:42,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:09:42,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:09:42,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:09:42,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:09:42,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:09:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:09:43,798 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 30 [2018-11-26 13:09:44,319 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2018-11-26 13:09:44,489 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2018-11-26 13:09:44,717 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 51 [2018-11-26 13:09:44,890 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2018-11-26 13:09:45,129 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 41 [2018-11-26 13:09:45,312 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 45 [2018-11-26 13:09:46,371 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 51 [2018-11-26 13:09:46,646 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 59 [2018-11-26 13:09:46,958 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 61 [2018-11-26 13:09:47,176 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 49 [2018-11-26 13:09:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:09:52,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:09:52,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2018-11-26 13:09:52,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-26 13:09:52,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-26 13:09:52,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1890, Unknown=0, NotChecked=0, Total=2070 [2018-11-26 13:09:52,649 INFO L87 Difference]: Start difference. First operand 8378 states and 19756 transitions. Second operand 46 states. [2018-11-26 13:10:15,484 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2018-11-26 13:10:15,795 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2018-11-26 13:10:16,099 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 74 [2018-11-26 13:10:16,478 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2018-11-26 13:10:16,872 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2018-11-26 13:10:17,249 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2018-11-26 13:10:18,001 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2018-11-26 13:10:18,404 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 90 [2018-11-26 13:10:18,682 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2018-11-26 13:10:18,933 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2018-11-26 13:10:19,598 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2018-11-26 13:10:19,834 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2018-11-26 13:10:20,274 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 81 [2018-11-26 13:10:20,563 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2018-11-26 13:10:20,900 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2018-11-26 13:10:21,367 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2018-11-26 13:10:21,852 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 87 [2018-11-26 13:10:22,388 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 89 [2018-11-26 13:10:22,607 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2018-11-26 13:10:23,083 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2018-11-26 13:10:23,557 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 79 [2018-11-26 13:10:23,824 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 73 [2018-11-26 13:10:24,223 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 81 [2018-11-26 13:10:24,456 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 77 [2018-11-26 13:10:24,752 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2018-11-26 13:10:25,224 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 81 [2018-11-26 13:10:25,658 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 83 [2018-11-26 13:10:25,962 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2018-11-26 13:10:27,316 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2018-11-26 13:10:27,605 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-11-26 13:10:27,938 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2018-11-26 13:10:28,197 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2018-11-26 13:10:28,514 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2018-11-26 13:10:28,859 WARN L180 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2018-11-26 13:10:29,352 WARN L180 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2018-11-26 13:10:29,676 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2018-11-26 13:10:30,201 WARN L180 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2018-11-26 13:10:30,498 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2018-11-26 13:10:30,848 WARN L180 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2018-11-26 13:10:31,173 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2018-11-26 13:10:31,572 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2018-11-26 13:10:31,857 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2018-11-26 13:10:32,178 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2018-11-26 13:10:32,557 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2018-11-26 13:10:32,970 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130 [2018-11-26 13:10:33,312 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2018-11-26 13:10:33,739 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2018-11-26 13:10:34,182 WARN L180 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2018-11-26 13:10:34,497 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2018-11-26 13:10:35,087 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2018-11-26 13:10:35,285 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2018-11-26 13:10:35,523 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-11-26 13:10:35,932 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2018-11-26 13:10:36,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:10:36,517 INFO L93 Difference]: Finished difference Result 14504 states and 35148 transitions. [2018-11-26 13:10:36,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-11-26 13:10:36,517 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 977 [2018-11-26 13:10:36,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:10:36,532 INFO L225 Difference]: With dead ends: 14504 [2018-11-26 13:10:36,533 INFO L226 Difference]: Without dead ends: 14168 [2018-11-26 13:10:36,533 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 2 SyntacticMatches, 14 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3566 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=1909, Invalid=10747, Unknown=0, NotChecked=0, Total=12656 [2018-11-26 13:10:36,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14168 states. [2018-11-26 13:10:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14168 to 8348. [2018-11-26 13:10:36,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8348 states. [2018-11-26 13:10:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8348 states to 8348 states and 19678 transitions. [2018-11-26 13:10:36,683 INFO L78 Accepts]: Start accepts. Automaton has 8348 states and 19678 transitions. Word has length 977 [2018-11-26 13:10:36,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:10:36,684 INFO L480 AbstractCegarLoop]: Abstraction has 8348 states and 19678 transitions. [2018-11-26 13:10:36,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-26 13:10:36,684 INFO L276 IsEmpty]: Start isEmpty. Operand 8348 states and 19678 transitions. [2018-11-26 13:10:36,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:10:36,694 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:10:36,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:10:36,695 INFO L423 AbstractCegarLoop]: === Iteration 26 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:10:36,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:10:36,695 INFO L82 PathProgramCache]: Analyzing trace with hash -2057088038, now seen corresponding path program 9 times [2018-11-26 13:10:36,695 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:10:36,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:10:36,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:10:36,696 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:10:36,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:10:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:10:38,396 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 45 [2018-11-26 13:10:38,554 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 39 [2018-11-26 13:10:39,838 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 47 [2018-11-26 13:10:40,076 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 51 [2018-11-26 13:10:40,328 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 42 [2018-11-26 13:10:45,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:10:45,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:10:45,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-26 13:10:45,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-26 13:10:45,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-26 13:10:45,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=2001, Unknown=0, NotChecked=0, Total=2162 [2018-11-26 13:10:45,522 INFO L87 Difference]: Start difference. First operand 8348 states and 19678 transitions. Second operand 47 states. [2018-11-26 13:11:07,596 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2018-11-26 13:11:08,075 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2018-11-26 13:11:08,373 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2018-11-26 13:11:08,657 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2018-11-26 13:11:09,009 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2018-11-26 13:11:09,387 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 85 [2018-11-26 13:11:09,722 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2018-11-26 13:11:10,427 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2018-11-26 13:11:10,795 WARN L180 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 89 [2018-11-26 13:11:11,027 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2018-11-26 13:11:11,740 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-11-26 13:11:11,920 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-11-26 13:11:12,305 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2018-11-26 13:11:12,570 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2018-11-26 13:11:12,836 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2018-11-26 13:11:13,250 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2018-11-26 13:11:13,661 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2018-11-26 13:11:14,139 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 81 [2018-11-26 13:11:14,318 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2018-11-26 13:11:14,824 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2018-11-26 13:11:15,289 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2018-11-26 13:11:15,513 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2018-11-26 13:11:15,932 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 78 [2018-11-26 13:11:16,190 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 73 [2018-11-26 13:11:16,868 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2018-11-26 13:11:17,303 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85 [2018-11-26 13:11:17,579 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2018-11-26 13:11:18,287 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2018-11-26 13:11:19,140 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2018-11-26 13:11:19,384 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-11-26 13:11:19,704 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2018-11-26 13:11:19,933 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-11-26 13:11:20,198 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2018-11-26 13:11:20,532 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2018-11-26 13:11:21,181 WARN L180 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2018-11-26 13:11:21,461 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2018-11-26 13:11:21,850 WARN L180 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2018-11-26 13:11:22,086 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2018-11-26 13:11:22,399 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-11-26 13:11:22,700 WARN L180 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 103 [2018-11-26 13:11:23,070 WARN L180 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-11-26 13:11:23,375 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2018-11-26 13:11:23,671 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2018-11-26 13:11:23,984 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2018-11-26 13:11:24,351 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2018-11-26 13:11:24,635 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2018-11-26 13:11:25,001 WARN L180 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2018-11-26 13:11:25,412 WARN L180 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2018-11-26 13:11:25,684 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2018-11-26 13:11:27,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:11:27,112 INFO L93 Difference]: Finished difference Result 13380 states and 32300 transitions. [2018-11-26 13:11:27,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-11-26 13:11:27,112 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 977 [2018-11-26 13:11:27,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:11:27,126 INFO L225 Difference]: With dead ends: 13380 [2018-11-26 13:11:27,126 INFO L226 Difference]: Without dead ends: 13044 [2018-11-26 13:11:27,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 3 SyntacticMatches, 13 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4143 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=1650, Invalid=12392, Unknown=0, NotChecked=0, Total=14042 [2018-11-26 13:11:27,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13044 states. [2018-11-26 13:11:27,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13044 to 8468. [2018-11-26 13:11:27,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8468 states. [2018-11-26 13:11:27,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 19990 transitions. [2018-11-26 13:11:27,229 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 19990 transitions. Word has length 977 [2018-11-26 13:11:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:11:27,230 INFO L480 AbstractCegarLoop]: Abstraction has 8468 states and 19990 transitions. [2018-11-26 13:11:27,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-26 13:11:27,230 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 19990 transitions. [2018-11-26 13:11:27,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:11:27,241 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:11:27,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:11:27,242 INFO L423 AbstractCegarLoop]: === Iteration 27 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:11:27,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:11:27,243 INFO L82 PathProgramCache]: Analyzing trace with hash 200424880, now seen corresponding path program 10 times [2018-11-26 13:11:27,243 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:11:27,243 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:11:27,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:11:27,244 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:11:27,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:11:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:11:28,369 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2018-11-26 13:11:28,577 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 51 [2018-11-26 13:11:28,750 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2018-11-26 13:11:28,886 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2018-11-26 13:11:29,343 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 43 [2018-11-26 13:11:29,539 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2018-11-26 13:11:29,818 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 50 [2018-11-26 13:11:30,019 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 49 [2018-11-26 13:11:30,326 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 47 [2018-11-26 13:11:30,515 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2018-11-26 13:11:30,728 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 53 [2018-11-26 13:11:30,896 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2018-11-26 13:11:31,201 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2018-11-26 13:11:31,549 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2018-11-26 13:11:31,753 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2018-11-26 13:11:31,995 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 58 [2018-11-26 13:11:32,255 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 56 [2018-11-26 13:11:32,478 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 50 [2018-11-26 13:11:32,926 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2018-11-26 13:11:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:11:37,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:11:37,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-26 13:11:37,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-26 13:11:37,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-26 13:11:37,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2018-11-26 13:11:37,652 INFO L87 Difference]: Start difference. First operand 8468 states and 19990 transitions. Second operand 47 states. [2018-11-26 13:11:56,207 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 56 [2018-11-26 13:11:56,412 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 62 [2018-11-26 13:11:57,063 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 70 [2018-11-26 13:11:57,414 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2018-11-26 13:11:57,743 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2018-11-26 13:11:58,116 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 87 [2018-11-26 13:11:58,568 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 94 [2018-11-26 13:11:58,992 WARN L180 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 89 [2018-11-26 13:11:59,839 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 98 [2018-11-26 13:12:00,310 WARN L180 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 107 [2018-11-26 13:12:00,606 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2018-11-26 13:12:00,878 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-11-26 13:12:01,456 WARN L180 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 109 [2018-11-26 13:12:01,674 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2018-11-26 13:12:01,957 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 84 [2018-11-26 13:12:02,160 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-11-26 13:12:02,402 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2018-11-26 13:12:02,632 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-11-26 13:12:03,005 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2018-11-26 13:12:03,267 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2018-11-26 13:12:03,655 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2018-11-26 13:12:04,154 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 93 [2018-11-26 13:12:04,751 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2018-11-26 13:12:05,076 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 81 [2018-11-26 13:12:05,474 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 87 [2018-11-26 13:12:05,898 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 110 [2018-11-26 13:12:06,216 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2018-11-26 13:12:06,403 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2018-11-26 13:12:06,601 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-11-26 13:12:07,348 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-11-26 13:12:07,756 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2018-11-26 13:12:08,059 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-11-26 13:12:08,399 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2018-11-26 13:12:08,615 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-11-26 13:12:08,965 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-11-26 13:12:09,304 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-11-26 13:12:09,760 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2018-11-26 13:12:10,072 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2018-11-26 13:12:10,374 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2018-11-26 13:12:10,799 WARN L180 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 132 [2018-11-26 13:12:11,136 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-11-26 13:12:11,478 WARN L180 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2018-11-26 13:12:11,878 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2018-11-26 13:12:12,275 WARN L180 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2018-11-26 13:12:12,635 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2018-11-26 13:12:13,043 WARN L180 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2018-11-26 13:12:13,371 WARN L180 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2018-11-26 13:12:13,877 WARN L180 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 137 [2018-11-26 13:12:14,158 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2018-11-26 13:12:14,576 WARN L180 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 125 [2018-11-26 13:12:14,994 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2018-11-26 13:12:16,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:12:16,424 INFO L93 Difference]: Finished difference Result 10970 states and 26214 transitions. [2018-11-26 13:12:16,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-11-26 13:12:16,425 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 977 [2018-11-26 13:12:16,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:12:16,435 INFO L225 Difference]: With dead ends: 10970 [2018-11-26 13:12:16,436 INFO L226 Difference]: Without dead ends: 10634 [2018-11-26 13:12:16,436 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 2 SyntacticMatches, 9 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3463 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=1832, Invalid=11050, Unknown=0, NotChecked=0, Total=12882 [2018-11-26 13:12:16,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10634 states. [2018-11-26 13:12:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10634 to 8468. [2018-11-26 13:12:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8468 states. [2018-11-26 13:12:16,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 19990 transitions. [2018-11-26 13:12:16,527 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 19990 transitions. Word has length 977 [2018-11-26 13:12:16,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:12:16,528 INFO L480 AbstractCegarLoop]: Abstraction has 8468 states and 19990 transitions. [2018-11-26 13:12:16,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-26 13:12:16,528 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 19990 transitions. [2018-11-26 13:12:16,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:12:16,539 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:12:16,540 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:12:16,540 INFO L423 AbstractCegarLoop]: === Iteration 28 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:12:16,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:12:16,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1456619430, now seen corresponding path program 11 times [2018-11-26 13:12:16,541 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:12:16,541 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:12:16,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:12:16,542 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:12:16,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:12:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:12:17,610 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2018-11-26 13:12:17,816 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 51 [2018-11-26 13:12:17,970 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2018-11-26 13:12:18,110 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2018-11-26 13:12:18,516 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 42 [2018-11-26 13:12:18,696 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 42 [2018-11-26 13:12:18,976 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 49 [2018-11-26 13:12:19,169 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 48 [2018-11-26 13:12:19,445 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 46 [2018-11-26 13:12:19,632 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 48 [2018-11-26 13:12:19,827 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 52 [2018-11-26 13:12:19,993 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2018-11-26 13:12:20,306 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2018-11-26 13:12:20,632 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2018-11-26 13:12:20,838 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2018-11-26 13:12:21,085 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 58 [2018-11-26 13:12:21,332 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 56 [2018-11-26 13:12:21,606 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 50 [2018-11-26 13:12:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:12:26,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:12:26,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-26 13:12:26,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-26 13:12:26,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-26 13:12:26,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2018-11-26 13:12:26,636 INFO L87 Difference]: Start difference. First operand 8468 states and 19990 transitions. Second operand 47 states. [2018-11-26 13:12:41,366 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 56 [2018-11-26 13:12:42,194 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 70 [2018-11-26 13:12:42,539 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2018-11-26 13:12:42,840 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2018-11-26 13:12:43,217 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 87 [2018-11-26 13:12:43,664 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 94 [2018-11-26 13:12:44,072 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 89 [2018-11-26 13:12:44,905 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 95 [2018-11-26 13:12:45,190 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-11-26 13:12:45,682 WARN L180 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 100 [2018-11-26 13:12:46,159 WARN L180 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 109 [2018-11-26 13:12:46,368 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-11-26 13:12:46,669 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 84 [2018-11-26 13:12:46,942 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2018-11-26 13:12:47,170 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-11-26 13:12:47,540 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2018-11-26 13:12:47,821 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2018-11-26 13:12:48,214 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2018-11-26 13:12:48,713 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 93 [2018-11-26 13:12:49,346 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2018-11-26 13:12:49,645 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 81 [2018-11-26 13:12:50,032 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 87 [2018-11-26 13:12:50,454 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 110 [2018-11-26 13:12:50,755 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2018-11-26 13:12:50,918 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2018-11-26 13:12:51,114 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-11-26 13:12:51,985 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-11-26 13:12:52,252 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2018-11-26 13:12:52,551 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-11-26 13:12:52,898 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2018-11-26 13:12:53,134 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-11-26 13:12:53,487 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-11-26 13:12:53,820 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-11-26 13:12:54,282 WARN L180 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2018-11-26 13:12:54,628 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2018-11-26 13:12:54,929 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2018-11-26 13:12:55,385 WARN L180 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 132 [2018-11-26 13:12:55,709 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-11-26 13:12:56,042 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2018-11-26 13:12:56,424 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2018-11-26 13:12:56,820 WARN L180 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2018-11-26 13:12:57,123 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2018-11-26 13:12:57,547 WARN L180 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2018-11-26 13:12:57,867 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2018-11-26 13:12:58,384 WARN L180 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 137 [2018-11-26 13:12:58,682 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2018-11-26 13:12:59,059 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 125 [2018-11-26 13:12:59,458 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2018-11-26 13:13:01,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:13:01,012 INFO L93 Difference]: Finished difference Result 10964 states and 26201 transitions. [2018-11-26 13:13:01,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-11-26 13:13:01,012 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 977 [2018-11-26 13:13:01,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:13:01,023 INFO L225 Difference]: With dead ends: 10964 [2018-11-26 13:13:01,023 INFO L226 Difference]: Without dead ends: 10628 [2018-11-26 13:13:01,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 2 SyntacticMatches, 9 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3320 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=1789, Invalid=10643, Unknown=0, NotChecked=0, Total=12432 [2018-11-26 13:13:01,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10628 states. [2018-11-26 13:13:01,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10628 to 8468. [2018-11-26 13:13:01,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8468 states. [2018-11-26 13:13:01,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 19990 transitions. [2018-11-26 13:13:01,113 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 19990 transitions. Word has length 977 [2018-11-26 13:13:01,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:13:01,113 INFO L480 AbstractCegarLoop]: Abstraction has 8468 states and 19990 transitions. [2018-11-26 13:13:01,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-26 13:13:01,113 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 19990 transitions. [2018-11-26 13:13:01,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:13:01,125 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:13:01,125 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:13:01,126 INFO L423 AbstractCegarLoop]: === Iteration 29 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:13:01,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:13:01,126 INFO L82 PathProgramCache]: Analyzing trace with hash -261488804, now seen corresponding path program 12 times [2018-11-26 13:13:01,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:13:01,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:13:01,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:13:01,127 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:13:01,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:13:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:13:02,779 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 43 [2018-11-26 13:13:02,971 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 43 [2018-11-26 13:13:03,255 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2018-11-26 13:13:03,580 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 52 [2018-11-26 13:13:03,793 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 46 [2018-11-26 13:13:04,105 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 44 [2018-11-26 13:13:04,319 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 48 [2018-11-26 13:13:04,478 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2018-11-26 13:13:04,969 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2018-11-26 13:13:05,208 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 49 [2018-11-26 13:13:05,416 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 53 [2018-11-26 13:13:05,658 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 52 [2018-11-26 13:13:05,946 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 57 [2018-11-26 13:13:06,178 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 48 [2018-11-26 13:13:06,649 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2018-11-26 13:13:11,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:13:11,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:13:11,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2018-11-26 13:13:11,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-26 13:13:11,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-26 13:13:11,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1881, Unknown=0, NotChecked=0, Total=2070 [2018-11-26 13:13:11,617 INFO L87 Difference]: Start difference. First operand 8468 states and 19990 transitions. Second operand 46 states. [2018-11-26 13:13:29,258 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2018-11-26 13:13:29,575 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2018-11-26 13:13:29,902 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2018-11-26 13:13:30,287 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2018-11-26 13:13:30,976 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2018-11-26 13:13:31,394 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 92 [2018-11-26 13:13:31,804 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 88 [2018-11-26 13:13:32,477 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 90 [2018-11-26 13:13:32,892 WARN L180 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 96 [2018-11-26 13:13:33,153 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 73 [2018-11-26 13:13:33,362 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2018-11-26 13:13:33,537 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2018-11-26 13:13:33,824 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2018-11-26 13:13:34,077 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2018-11-26 13:13:34,447 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2018-11-26 13:13:34,862 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 89 [2018-11-26 13:13:35,376 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2018-11-26 13:13:35,681 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2018-11-26 13:13:36,059 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 81 [2018-11-26 13:13:36,395 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 83 [2018-11-26 13:13:36,645 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 67 [2018-11-26 13:13:37,124 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2018-11-26 13:13:37,806 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2018-11-26 13:13:38,092 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2018-11-26 13:13:38,399 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2018-11-26 13:13:38,609 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2018-11-26 13:13:38,943 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2018-11-26 13:13:39,302 WARN L180 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2018-11-26 13:13:39,726 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 114 [2018-11-26 13:13:40,039 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2018-11-26 13:13:40,303 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2018-11-26 13:13:40,672 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 123 [2018-11-26 13:13:40,964 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2018-11-26 13:13:41,305 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2018-11-26 13:13:41,644 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2018-11-26 13:13:41,982 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2018-11-26 13:13:42,270 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2018-11-26 13:13:42,603 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 119 [2018-11-26 13:13:42,912 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2018-11-26 13:13:43,321 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 128 [2018-11-26 13:13:43,610 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2018-11-26 13:13:43,989 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2018-11-26 13:13:44,368 WARN L180 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2018-11-26 13:13:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:13:45,617 INFO L93 Difference]: Finished difference Result 11879 states and 28509 transitions. [2018-11-26 13:13:45,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-11-26 13:13:45,618 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 977 [2018-11-26 13:13:45,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:13:45,633 INFO L225 Difference]: With dead ends: 11879 [2018-11-26 13:13:45,633 INFO L226 Difference]: Without dead ends: 11543 [2018-11-26 13:13:45,634 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 2 SyntacticMatches, 13 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3125 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=1602, Invalid=9528, Unknown=0, NotChecked=0, Total=11130 [2018-11-26 13:13:45,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11543 states. [2018-11-26 13:13:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11543 to 8468. [2018-11-26 13:13:45,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8468 states. [2018-11-26 13:13:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 19990 transitions. [2018-11-26 13:13:45,733 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 19990 transitions. Word has length 977 [2018-11-26 13:13:45,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:13:45,734 INFO L480 AbstractCegarLoop]: Abstraction has 8468 states and 19990 transitions. [2018-11-26 13:13:45,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-26 13:13:45,734 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 19990 transitions. [2018-11-26 13:13:45,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:13:45,744 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:13:45,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:13:45,745 INFO L423 AbstractCegarLoop]: === Iteration 30 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:13:45,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:13:45,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1759088078, now seen corresponding path program 13 times [2018-11-26 13:13:45,746 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:13:45,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:13:45,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:13:45,747 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:13:45,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:13:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:13:47,052 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-11-26 13:13:47,228 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2018-11-26 13:13:47,516 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2018-11-26 13:13:47,768 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 55 [2018-11-26 13:13:47,997 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 54 [2018-11-26 13:13:48,221 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 52 [2018-11-26 13:13:48,440 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 56 [2018-11-26 13:13:48,651 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 54 [2018-11-26 13:13:48,857 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 51 [2018-11-26 13:13:49,094 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 56 [2018-11-26 13:13:49,295 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2018-11-26 13:13:49,508 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2018-11-26 13:13:49,694 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2018-11-26 13:13:49,872 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2018-11-26 13:13:50,148 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 53 [2018-11-26 13:13:50,355 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 58 [2018-11-26 13:13:50,604 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 60 [2018-11-26 13:13:50,874 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 58 [2018-11-26 13:13:51,087 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 52 [2018-11-26 13:13:51,324 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 50 [2018-11-26 13:13:51,633 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 55 [2018-11-26 13:13:51,861 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 49 [2018-11-26 13:13:52,169 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2018-11-26 13:13:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:13:57,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:13:57,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2018-11-26 13:13:57,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-11-26 13:13:57,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-11-26 13:13:57,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=2341, Unknown=0, NotChecked=0, Total=2550 [2018-11-26 13:13:57,397 INFO L87 Difference]: Start difference. First operand 8468 states and 19990 transitions. Second operand 51 states. [2018-11-26 13:14:28,326 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2018-11-26 13:14:28,729 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 72 [2018-11-26 13:14:29,094 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 79 [2018-11-26 13:14:29,968 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81 [2018-11-26 13:14:30,414 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2018-11-26 13:14:30,980 WARN L180 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 93 [2018-11-26 13:14:31,450 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 88 [2018-11-26 13:14:31,969 WARN L180 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 90 [2018-11-26 13:14:32,437 WARN L180 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 103 [2018-11-26 13:14:32,861 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2018-11-26 13:14:33,230 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2018-11-26 13:14:33,503 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2018-11-26 13:14:33,823 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2018-11-26 13:14:34,102 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2018-11-26 13:14:34,480 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 92 [2018-11-26 13:14:34,791 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2018-11-26 13:14:35,052 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-11-26 13:14:35,482 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2018-11-26 13:14:35,849 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2018-11-26 13:14:36,324 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 86 [2018-11-26 13:14:36,957 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 93 [2018-11-26 13:14:37,676 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2018-11-26 13:14:38,098 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 77 [2018-11-26 13:14:38,567 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 86 [2018-11-26 13:14:39,072 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 109 [2018-11-26 13:14:39,437 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2018-11-26 13:14:39,641 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2018-11-26 13:14:39,884 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2018-11-26 13:14:40,145 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2018-11-26 13:14:40,434 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2018-11-26 13:14:40,802 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2018-11-26 13:14:41,118 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-11-26 13:14:41,352 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2018-11-26 13:14:42,276 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2018-11-26 13:14:42,530 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2018-11-26 13:14:42,851 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-11-26 13:14:43,215 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2018-11-26 13:14:43,459 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-11-26 13:14:43,829 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2018-11-26 13:14:44,189 WARN L180 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2018-11-26 13:14:44,699 WARN L180 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2018-11-26 13:14:45,051 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2018-11-26 13:14:45,385 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2018-11-26 13:14:45,861 WARN L180 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2018-11-26 13:14:46,248 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2018-11-26 13:14:46,615 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2018-11-26 13:14:47,050 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2018-11-26 13:14:47,498 WARN L180 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2018-11-26 13:14:47,823 WARN L180 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2018-11-26 13:14:48,254 WARN L180 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2018-11-26 13:14:48,589 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2018-11-26 13:14:49,128 WARN L180 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2018-11-26 13:14:49,452 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2018-11-26 13:14:49,896 WARN L180 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2018-11-26 13:14:50,324 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2018-11-26 13:14:52,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:14:52,303 INFO L93 Difference]: Finished difference Result 12224 states and 29393 transitions. [2018-11-26 13:14:52,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-11-26 13:14:52,303 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 977 [2018-11-26 13:14:52,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:14:52,316 INFO L225 Difference]: With dead ends: 12224 [2018-11-26 13:14:52,317 INFO L226 Difference]: Without dead ends: 11888 [2018-11-26 13:14:52,318 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 2 SyntacticMatches, 10 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3794 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=2015, Invalid=12505, Unknown=0, NotChecked=0, Total=14520 [2018-11-26 13:14:52,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11888 states. [2018-11-26 13:14:52,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11888 to 8468. [2018-11-26 13:14:52,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8468 states. [2018-11-26 13:14:52,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 19990 transitions. [2018-11-26 13:14:52,419 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 19990 transitions. Word has length 977 [2018-11-26 13:14:52,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:14:52,420 INFO L480 AbstractCegarLoop]: Abstraction has 8468 states and 19990 transitions. [2018-11-26 13:14:52,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-11-26 13:14:52,420 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 19990 transitions. [2018-11-26 13:14:52,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:14:52,432 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:14:52,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:14:52,433 INFO L423 AbstractCegarLoop]: === Iteration 31 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:14:52,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:14:52,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1449452222, now seen corresponding path program 14 times [2018-11-26 13:14:52,434 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:14:52,434 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:14:52,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:14:52,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:14:52,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:14:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:14:53,913 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2018-11-26 13:14:54,083 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 44 [2018-11-26 13:14:54,353 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 44 [2018-11-26 13:14:54,617 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 52 [2018-11-26 13:14:54,802 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 45 [2018-11-26 13:14:55,080 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 43 [2018-11-26 13:14:55,286 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 49 [2018-11-26 13:14:55,450 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2018-11-26 13:14:55,608 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2018-11-26 13:14:55,778 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2018-11-26 13:14:55,957 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2018-11-26 13:14:56,152 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 52 [2018-11-26 13:14:56,361 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2018-11-26 13:14:56,627 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 58 [2018-11-26 13:14:56,899 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 61 [2018-11-26 13:14:57,151 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 50 [2018-11-26 13:14:57,609 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 50 [2018-11-26 13:15:02,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:15:02,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:15:02,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2018-11-26 13:15:02,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-26 13:15:02,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-26 13:15:02,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1886, Unknown=0, NotChecked=0, Total=2070 [2018-11-26 13:15:02,627 INFO L87 Difference]: Start difference. First operand 8468 states and 19990 transitions. Second operand 46 states. [2018-11-26 13:15:26,182 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2018-11-26 13:15:26,466 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2018-11-26 13:15:26,996 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2018-11-26 13:15:27,321 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2018-11-26 13:15:27,684 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 81 [2018-11-26 13:15:28,162 WARN L180 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 88 [2018-11-26 13:15:28,575 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2018-11-26 13:15:29,164 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 85 [2018-11-26 13:15:29,591 WARN L180 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 93 [2018-11-26 13:15:29,886 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 79 [2018-11-26 13:15:30,151 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2018-11-26 13:15:30,382 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2018-11-26 13:15:30,774 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2018-11-26 13:15:31,042 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2018-11-26 13:15:31,439 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 84 [2018-11-26 13:15:31,963 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2018-11-26 13:15:32,656 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2018-11-26 13:15:32,988 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2018-11-26 13:15:33,387 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 83 [2018-11-26 13:15:33,834 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 109 [2018-11-26 13:15:34,142 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2018-11-26 13:15:34,323 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2018-11-26 13:15:35,444 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2018-11-26 13:15:35,694 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2018-11-26 13:15:35,998 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2018-11-26 13:15:36,325 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2018-11-26 13:15:36,550 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2018-11-26 13:15:36,894 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2018-11-26 13:15:37,214 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 108 [2018-11-26 13:15:37,663 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 118 [2018-11-26 13:15:38,000 WARN L180 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2018-11-26 13:15:38,274 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2018-11-26 13:15:38,684 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2018-11-26 13:15:39,001 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 108 [2018-11-26 13:15:39,388 WARN L180 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 124 [2018-11-26 13:15:39,782 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2018-11-26 13:15:40,117 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 118 [2018-11-26 13:15:40,427 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2018-11-26 13:15:40,820 WARN L180 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 122 [2018-11-26 13:15:41,155 WARN L180 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 113 [2018-11-26 13:15:41,630 WARN L180 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 132 [2018-11-26 13:15:41,922 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2018-11-26 13:15:42,469 WARN L180 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2018-11-26 13:15:42,885 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2018-11-26 13:15:44,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:15:44,345 INFO L93 Difference]: Finished difference Result 12236 states and 29419 transitions. [2018-11-26 13:15:44,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-11-26 13:15:44,346 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 977 [2018-11-26 13:15:44,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:15:44,359 INFO L225 Difference]: With dead ends: 12236 [2018-11-26 13:15:44,359 INFO L226 Difference]: Without dead ends: 11900 [2018-11-26 13:15:44,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 3 SyntacticMatches, 12 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3184 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=1625, Invalid=9717, Unknown=0, NotChecked=0, Total=11342 [2018-11-26 13:15:44,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11900 states. [2018-11-26 13:15:44,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11900 to 8468. [2018-11-26 13:15:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8468 states. [2018-11-26 13:15:44,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 19990 transitions. [2018-11-26 13:15:44,449 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 19990 transitions. Word has length 977 [2018-11-26 13:15:44,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:15:44,450 INFO L480 AbstractCegarLoop]: Abstraction has 8468 states and 19990 transitions. [2018-11-26 13:15:44,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-26 13:15:44,450 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 19990 transitions. [2018-11-26 13:15:44,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:15:44,462 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:15:44,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:15:44,463 INFO L423 AbstractCegarLoop]: === Iteration 32 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:15:44,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:15:44,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1105653936, now seen corresponding path program 15 times [2018-11-26 13:15:44,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:15:44,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:15:44,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:15:44,466 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:15:44,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:15:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:15:46,188 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 43 [2018-11-26 13:15:46,390 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 50 [2018-11-26 13:15:46,570 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2018-11-26 13:15:46,820 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 40 [2018-11-26 13:15:46,979 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 45 [2018-11-26 13:15:47,416 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2018-11-26 13:15:47,612 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 44 [2018-11-26 13:15:48,197 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 52 [2018-11-26 13:15:48,435 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 55 [2018-11-26 13:15:48,633 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 47 [2018-11-26 13:15:53,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:15:53,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:15:53,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2018-11-26 13:15:53,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-26 13:15:53,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-26 13:15:53,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1879, Unknown=0, NotChecked=0, Total=2070 [2018-11-26 13:15:53,670 INFO L87 Difference]: Start difference. First operand 8468 states and 19990 transitions. Second operand 46 states. [2018-11-26 13:16:12,935 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 69 [2018-11-26 13:16:13,369 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2018-11-26 13:16:13,727 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2018-11-26 13:16:13,999 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2018-11-26 13:16:14,370 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 88 [2018-11-26 13:16:14,790 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 95 [2018-11-26 13:16:15,143 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 93 [2018-11-26 13:16:15,623 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 93 [2018-11-26 13:16:15,941 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 95 [2018-11-26 13:16:16,153 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2018-11-26 13:16:16,351 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2018-11-26 13:16:16,776 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2018-11-26 13:16:16,985 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2018-11-26 13:16:17,263 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 80 [2018-11-26 13:16:17,630 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 86 [2018-11-26 13:16:18,052 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2018-11-26 13:16:18,314 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 75 [2018-11-26 13:16:18,594 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2018-11-26 13:16:18,872 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 81 [2018-11-26 13:16:19,106 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2018-11-26 13:16:20,273 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2018-11-26 13:16:20,543 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2018-11-26 13:16:20,828 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2018-11-26 13:16:21,027 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-11-26 13:16:21,325 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-11-26 13:16:21,590 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2018-11-26 13:16:21,953 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 107 [2018-11-26 13:16:22,230 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2018-11-26 13:16:22,459 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2018-11-26 13:16:22,779 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2018-11-26 13:16:23,117 WARN L180 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 97 [2018-11-26 13:16:23,503 WARN L180 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2018-11-26 13:16:23,823 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2018-11-26 13:16:24,097 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 104 [2018-11-26 13:16:24,346 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2018-11-26 13:16:24,658 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2018-11-26 13:16:24,924 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2018-11-26 13:16:25,299 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 119 [2018-11-26 13:16:25,549 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-11-26 13:16:25,866 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2018-11-26 13:16:26,181 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2018-11-26 13:16:27,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:16:27,416 INFO L93 Difference]: Finished difference Result 12260 states and 29471 transitions. [2018-11-26 13:16:27,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-11-26 13:16:27,416 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 977 [2018-11-26 13:16:27,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:16:27,429 INFO L225 Difference]: With dead ends: 12260 [2018-11-26 13:16:27,429 INFO L226 Difference]: Without dead ends: 11924 [2018-11-26 13:16:27,430 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 12 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2946 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=1728, Invalid=9192, Unknown=0, NotChecked=0, Total=10920 [2018-11-26 13:16:27,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11924 states. [2018-11-26 13:16:27,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11924 to 8468. [2018-11-26 13:16:27,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8468 states. [2018-11-26 13:16:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 19990 transitions. [2018-11-26 13:16:27,532 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 19990 transitions. Word has length 977 [2018-11-26 13:16:27,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:16:27,533 INFO L480 AbstractCegarLoop]: Abstraction has 8468 states and 19990 transitions. [2018-11-26 13:16:27,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-26 13:16:27,533 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 19990 transitions. [2018-11-26 13:16:27,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:16:27,545 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:16:27,546 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:16:27,546 INFO L423 AbstractCegarLoop]: === Iteration 33 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:16:27,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:16:27,547 INFO L82 PathProgramCache]: Analyzing trace with hash 679581864, now seen corresponding path program 16 times [2018-11-26 13:16:27,547 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:16:27,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:16:27,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:16:27,548 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:16:27,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:16:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:16:28,968 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2018-11-26 13:16:29,150 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 50 [2018-11-26 13:16:29,334 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 50 [2018-11-26 13:16:29,498 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 43 [2018-11-26 13:16:29,732 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 42 [2018-11-26 13:16:29,909 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 46 [2018-11-26 13:16:30,182 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 43 [2018-11-26 13:16:30,631 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2018-11-26 13:16:31,026 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2018-11-26 13:16:31,264 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 55 [2018-11-26 13:16:31,495 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 54 [2018-11-26 13:16:31,713 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 48 [2018-11-26 13:16:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:16:37,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:16:37,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2018-11-26 13:16:37,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-26 13:16:37,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-26 13:16:37,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1882, Unknown=0, NotChecked=0, Total=2070 [2018-11-26 13:16:37,195 INFO L87 Difference]: Start difference. First operand 8468 states and 19990 transitions. Second operand 46 states. [2018-11-26 13:17:01,310 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2018-11-26 13:17:01,620 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2018-11-26 13:17:01,896 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2018-11-26 13:17:02,238 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 81 [2018-11-26 13:17:02,662 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 92 [2018-11-26 13:17:03,048 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2018-11-26 13:17:03,884 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 95 [2018-11-26 13:17:04,327 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 102 [2018-11-26 13:17:04,627 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2018-11-26 13:17:04,884 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2018-11-26 13:17:05,496 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2018-11-26 13:17:05,711 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2018-11-26 13:17:05,915 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-11-26 13:17:06,343 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2018-11-26 13:17:06,619 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2018-11-26 13:17:06,996 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 84 [2018-11-26 13:17:07,513 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 91 [2018-11-26 13:17:08,172 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2018-11-26 13:17:08,493 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 80 [2018-11-26 13:17:08,879 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 86 [2018-11-26 13:17:09,330 WARN L180 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 107 [2018-11-26 13:17:09,613 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-11-26 13:17:09,788 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2018-11-26 13:17:10,829 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2018-11-26 13:17:11,069 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2018-11-26 13:17:11,328 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2018-11-26 13:17:11,627 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2018-11-26 13:17:11,898 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-11-26 13:17:12,187 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-11-26 13:17:12,509 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2018-11-26 13:17:12,936 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2018-11-26 13:17:13,253 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2018-11-26 13:17:13,663 WARN L180 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 122 [2018-11-26 13:17:13,939 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2018-11-26 13:17:14,316 WARN L180 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2018-11-26 13:17:14,642 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2018-11-26 13:17:15,057 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2018-11-26 13:17:15,331 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2018-11-26 13:17:15,664 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2018-11-26 13:17:16,004 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2018-11-26 13:17:16,392 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2018-11-26 13:17:16,668 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-11-26 13:17:17,108 WARN L180 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 127 [2018-11-26 13:17:17,508 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2018-11-26 13:17:17,831 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2018-11-26 13:17:19,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:17:19,334 INFO L93 Difference]: Finished difference Result 13259 states and 31878 transitions. [2018-11-26 13:17:19,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-11-26 13:17:19,335 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 977 [2018-11-26 13:17:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:17:19,350 INFO L225 Difference]: With dead ends: 13259 [2018-11-26 13:17:19,350 INFO L226 Difference]: Without dead ends: 12923 [2018-11-26 13:17:19,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 2 SyntacticMatches, 12 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3160 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=1758, Invalid=9584, Unknown=0, NotChecked=0, Total=11342 [2018-11-26 13:17:19,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12923 states. [2018-11-26 13:17:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12923 to 8388. [2018-11-26 13:17:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8388 states. [2018-11-26 13:17:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8388 states to 8388 states and 19782 transitions. [2018-11-26 13:17:19,462 INFO L78 Accepts]: Start accepts. Automaton has 8388 states and 19782 transitions. Word has length 977 [2018-11-26 13:17:19,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:17:19,463 INFO L480 AbstractCegarLoop]: Abstraction has 8388 states and 19782 transitions. [2018-11-26 13:17:19,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-26 13:17:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 8388 states and 19782 transitions. [2018-11-26 13:17:19,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:17:19,514 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:17:19,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:17:19,515 INFO L423 AbstractCegarLoop]: === Iteration 34 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:17:19,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:17:19,515 INFO L82 PathProgramCache]: Analyzing trace with hash 564760748, now seen corresponding path program 17 times [2018-11-26 13:17:19,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:17:19,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:17:19,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:17:19,517 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:17:19,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:17:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:17:21,032 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2018-11-26 13:17:21,290 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2018-11-26 13:17:21,501 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2018-11-26 13:17:21,755 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 54 [2018-11-26 13:17:22,026 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 55 [2018-11-26 13:17:22,229 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 47 [2018-11-26 13:17:22,547 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 46 [2018-11-26 13:17:22,735 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 50 [2018-11-26 13:17:22,949 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 52 [2018-11-26 13:17:23,116 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 46 [2018-11-26 13:17:23,425 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2018-11-26 13:17:24,002 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2018-11-26 13:17:24,239 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 55 [2018-11-26 13:17:24,478 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 54 [2018-11-26 13:17:24,704 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 48 [2018-11-26 13:17:25,172 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2018-11-26 13:17:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:17:30,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:17:30,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-26 13:17:30,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-26 13:17:30,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-26 13:17:30,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1989, Unknown=0, NotChecked=0, Total=2162 [2018-11-26 13:17:30,189 INFO L87 Difference]: Start difference. First operand 8388 states and 19782 transitions. Second operand 47 states. [2018-11-26 13:17:51,733 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2018-11-26 13:17:52,441 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2018-11-26 13:17:52,825 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2018-11-26 13:17:53,177 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 85 [2018-11-26 13:17:53,594 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 90 [2018-11-26 13:17:54,098 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 101 [2018-11-26 13:17:54,569 WARN L180 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 93 [2018-11-26 13:17:55,583 WARN L180 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 95 [2018-11-26 13:17:56,105 WARN L180 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 104 [2018-11-26 13:17:56,398 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2018-11-26 13:17:56,649 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2018-11-26 13:17:57,332 WARN L180 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 106 [2018-11-26 13:17:57,544 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2018-11-26 13:17:57,823 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2018-11-26 13:17:58,051 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-11-26 13:17:58,292 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2018-11-26 13:17:58,529 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2018-11-26 13:17:58,941 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2018-11-26 13:17:59,227 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2018-11-26 13:17:59,615 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 91 [2018-11-26 13:18:00,132 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 98 [2018-11-26 13:18:00,709 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2018-11-26 13:18:01,048 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 86 [2018-11-26 13:18:01,428 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 92 [2018-11-26 13:18:01,855 WARN L180 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 115 [2018-11-26 13:18:02,173 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2018-11-26 13:18:02,330 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2018-11-26 13:18:02,526 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2018-11-26 13:18:03,262 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-11-26 13:18:03,500 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2018-11-26 13:18:03,758 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-11-26 13:18:04,068 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2018-11-26 13:18:04,300 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2018-11-26 13:18:04,601 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-11-26 13:18:04,920 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2018-11-26 13:18:05,376 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 124 [2018-11-26 13:18:05,710 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2018-11-26 13:18:06,147 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2018-11-26 13:18:06,448 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2018-11-26 13:18:06,776 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2018-11-26 13:18:07,131 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 121 [2018-11-26 13:18:07,561 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 124 [2018-11-26 13:18:07,904 WARN L180 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2018-11-26 13:18:08,253 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 120 [2018-11-26 13:18:08,592 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 111 [2018-11-26 13:18:08,991 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2018-11-26 13:18:09,287 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2018-11-26 13:18:09,701 WARN L180 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 138 [2018-11-26 13:18:10,098 WARN L180 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2018-11-26 13:18:10,409 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2018-11-26 13:18:11,056 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2018-11-26 13:18:11,300 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-11-26 13:18:11,672 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-11-26 13:18:12,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:18:12,238 INFO L93 Difference]: Finished difference Result 11844 states and 28356 transitions. [2018-11-26 13:18:12,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-11-26 13:18:12,239 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 977 [2018-11-26 13:18:12,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:18:12,251 INFO L225 Difference]: With dead ends: 11844 [2018-11-26 13:18:12,251 INFO L226 Difference]: Without dead ends: 11508 [2018-11-26 13:18:12,252 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 2 SyntacticMatches, 12 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3441 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=1794, Invalid=11088, Unknown=0, NotChecked=0, Total=12882 [2018-11-26 13:18:12,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11508 states. [2018-11-26 13:18:12,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11508 to 8378. [2018-11-26 13:18:12,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8378 states. [2018-11-26 13:18:12,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 19756 transitions. [2018-11-26 13:18:12,384 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 19756 transitions. Word has length 977 [2018-11-26 13:18:12,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:18:12,384 INFO L480 AbstractCegarLoop]: Abstraction has 8378 states and 19756 transitions. [2018-11-26 13:18:12,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-26 13:18:12,385 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 19756 transitions. [2018-11-26 13:18:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:18:12,395 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:18:12,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:18:12,395 INFO L423 AbstractCegarLoop]: === Iteration 35 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:18:12,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:18:12,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1820955298, now seen corresponding path program 18 times [2018-11-26 13:18:12,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:18:12,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:18:12,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:18:12,397 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:18:12,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:18:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:18:13,878 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2018-11-26 13:18:14,125 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2018-11-26 13:18:14,330 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2018-11-26 13:18:14,569 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 54 [2018-11-26 13:18:14,827 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 55 [2018-11-26 13:18:15,021 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 47 [2018-11-26 13:18:15,326 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 46 [2018-11-26 13:18:15,539 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 48 [2018-11-26 13:18:15,746 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 52 [2018-11-26 13:18:15,915 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 46 [2018-11-26 13:18:16,232 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2018-11-26 13:18:16,620 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2018-11-26 13:18:16,822 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2018-11-26 13:18:17,053 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 55 [2018-11-26 13:18:17,300 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 54 [2018-11-26 13:18:17,526 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 48 [2018-11-26 13:18:18,022 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2018-11-26 13:18:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:18:23,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:18:23,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-26 13:18:23,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-26 13:18:23,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-26 13:18:23,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1989, Unknown=0, NotChecked=0, Total=2162 [2018-11-26 13:18:23,117 INFO L87 Difference]: Start difference. First operand 8378 states and 19756 transitions. Second operand 47 states. [2018-11-26 13:18:42,739 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2018-11-26 13:18:42,954 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2018-11-26 13:18:43,131 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2018-11-26 13:18:43,702 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2018-11-26 13:18:44,079 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2018-11-26 13:18:44,456 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 85 [2018-11-26 13:18:44,891 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 90 [2018-11-26 13:18:45,405 WARN L180 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 101 [2018-11-26 13:18:45,894 WARN L180 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 93 [2018-11-26 13:18:46,900 WARN L180 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 95 [2018-11-26 13:18:47,213 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-11-26 13:18:47,764 WARN L180 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 97 [2018-11-26 13:18:48,297 WARN L180 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 106 [2018-11-26 13:18:48,509 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-11-26 13:18:48,831 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2018-11-26 13:18:49,122 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2018-11-26 13:18:49,363 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2018-11-26 13:18:49,719 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2018-11-26 13:18:50,001 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2018-11-26 13:18:50,409 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 91 [2018-11-26 13:18:50,887 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 98 [2018-11-26 13:18:51,455 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2018-11-26 13:18:51,790 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 86 [2018-11-26 13:18:52,177 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 92 [2018-11-26 13:18:52,639 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 115 [2018-11-26 13:18:52,947 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2018-11-26 13:18:53,139 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2018-11-26 13:18:53,335 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2018-11-26 13:18:54,070 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-11-26 13:18:54,329 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2018-11-26 13:18:54,612 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-11-26 13:18:54,966 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2018-11-26 13:18:55,230 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2018-11-26 13:18:55,551 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-11-26 13:18:55,904 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2018-11-26 13:18:56,357 WARN L180 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 124 [2018-11-26 13:18:56,799 WARN L180 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2018-11-26 13:18:57,234 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2018-11-26 13:18:57,524 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2018-11-26 13:18:57,904 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2018-11-26 13:18:58,259 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 121 [2018-11-26 13:18:58,684 WARN L180 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 124 [2018-11-26 13:18:59,037 WARN L180 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2018-11-26 13:18:59,392 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 120 [2018-11-26 13:18:59,784 WARN L180 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 111 [2018-11-26 13:19:00,175 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2018-11-26 13:19:00,500 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2018-11-26 13:19:00,954 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 138 [2018-11-26 13:19:01,389 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2018-11-26 13:19:01,739 WARN L180 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2018-11-26 13:19:02,438 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2018-11-26 13:19:02,667 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-11-26 13:19:03,043 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-11-26 13:19:03,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:19:03,576 INFO L93 Difference]: Finished difference Result 11846 states and 28356 transitions. [2018-11-26 13:19:03,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-11-26 13:19:03,577 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 977 [2018-11-26 13:19:03,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:19:03,589 INFO L225 Difference]: With dead ends: 11846 [2018-11-26 13:19:03,589 INFO L226 Difference]: Without dead ends: 11510 [2018-11-26 13:19:03,590 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 2 SyntacticMatches, 12 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3300 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=1751, Invalid=10681, Unknown=0, NotChecked=0, Total=12432 [2018-11-26 13:19:03,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2018-11-26 13:19:03,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 8268. [2018-11-26 13:19:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8268 states. [2018-11-26 13:19:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 19470 transitions. [2018-11-26 13:19:03,681 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 19470 transitions. Word has length 977 [2018-11-26 13:19:03,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:19:03,682 INFO L480 AbstractCegarLoop]: Abstraction has 8268 states and 19470 transitions. [2018-11-26 13:19:03,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-26 13:19:03,682 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 19470 transitions. [2018-11-26 13:19:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:19:03,693 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:19:03,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:19:03,694 INFO L423 AbstractCegarLoop]: === Iteration 36 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:19:03,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:19:03,694 INFO L82 PathProgramCache]: Analyzing trace with hash -761023310, now seen corresponding path program 19 times [2018-11-26 13:19:03,694 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:19:03,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:19:03,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:19:03,696 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:19:03,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:19:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:19:05,530 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2018-11-26 13:19:05,707 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 46 [2018-11-26 13:19:05,954 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 52 [2018-11-26 13:19:06,188 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 50 [2018-11-26 13:19:06,509 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 48 [2018-11-26 13:19:06,732 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 52 [2018-11-26 13:19:06,929 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2018-11-26 13:19:07,089 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2018-11-26 13:19:07,388 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2018-11-26 13:19:07,544 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2018-11-26 13:19:07,753 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2018-11-26 13:19:07,943 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 50 [2018-11-26 13:19:08,160 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2018-11-26 13:19:08,440 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 57 [2018-11-26 13:19:08,756 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 60 [2018-11-26 13:19:08,999 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 50 [2018-11-26 13:19:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:19:14,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:19:14,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-26 13:19:14,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-26 13:19:14,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-26 13:19:14,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1980, Unknown=0, NotChecked=0, Total=2162 [2018-11-26 13:19:14,708 INFO L87 Difference]: Start difference. First operand 8268 states and 19470 transitions. Second operand 47 states. [2018-11-26 13:19:37,219 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2018-11-26 13:19:37,866 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2018-11-26 13:19:38,200 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2018-11-26 13:19:38,484 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2018-11-26 13:19:38,847 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 84 [2018-11-26 13:19:39,247 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 93 [2018-11-26 13:19:39,616 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 88 [2018-11-26 13:19:40,397 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2018-11-26 13:19:40,764 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 95 [2018-11-26 13:19:41,034 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 72 [2018-11-26 13:19:41,276 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 69 [2018-11-26 13:19:41,491 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2018-11-26 13:19:41,974 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 84 [2018-11-26 13:19:42,226 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2018-11-26 13:19:42,713 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2018-11-26 13:19:43,059 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2018-11-26 13:19:43,394 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2018-11-26 13:19:43,880 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 90 [2018-11-26 13:19:44,512 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 96 [2018-11-26 13:19:44,705 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2018-11-26 13:19:45,365 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 79 [2018-11-26 13:19:45,610 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 73 [2018-11-26 13:19:45,937 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 84 [2018-11-26 13:19:46,347 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 88 [2018-11-26 13:19:46,785 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 112 [2018-11-26 13:19:47,074 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2018-11-26 13:19:48,301 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-11-26 13:19:48,596 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-11-26 13:19:48,909 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2018-11-26 13:19:49,156 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2018-11-26 13:19:49,444 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-11-26 13:19:49,799 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2018-11-26 13:19:50,231 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 124 [2018-11-26 13:19:50,583 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2018-11-26 13:19:51,023 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 133 [2018-11-26 13:19:51,275 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2018-11-26 13:19:51,628 WARN L180 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2018-11-26 13:19:51,943 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 121 [2018-11-26 13:19:52,376 WARN L180 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 124 [2018-11-26 13:19:52,680 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2018-11-26 13:19:53,040 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 120 [2018-11-26 13:19:53,406 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 111 [2018-11-26 13:19:53,810 WARN L180 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2018-11-26 13:19:54,114 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2018-11-26 13:19:54,564 WARN L180 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 138 [2018-11-26 13:19:54,994 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2018-11-26 13:19:55,319 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2018-11-26 13:19:55,999 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2018-11-26 13:19:56,222 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-11-26 13:19:56,637 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-11-26 13:19:57,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:19:57,211 INFO L93 Difference]: Finished difference Result 11688 states and 27978 transitions. [2018-11-26 13:19:57,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-11-26 13:19:57,212 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 977 [2018-11-26 13:19:57,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:19:57,223 INFO L225 Difference]: With dead ends: 11688 [2018-11-26 13:19:57,223 INFO L226 Difference]: Without dead ends: 11352 [2018-11-26 13:19:57,224 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 2 SyntacticMatches, 12 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3562 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=1651, Invalid=10559, Unknown=0, NotChecked=0, Total=12210 [2018-11-26 13:19:57,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11352 states. [2018-11-26 13:19:57,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11352 to 8268. [2018-11-26 13:19:57,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8268 states. [2018-11-26 13:19:57,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 19470 transitions. [2018-11-26 13:19:57,315 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 19470 transitions. Word has length 977 [2018-11-26 13:19:57,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:19:57,316 INFO L480 AbstractCegarLoop]: Abstraction has 8268 states and 19470 transitions. [2018-11-26 13:19:57,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-26 13:19:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 19470 transitions. [2018-11-26 13:19:57,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:19:57,327 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:19:57,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:19:57,328 INFO L423 AbstractCegarLoop]: === Iteration 37 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:19:57,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:19:57,329 INFO L82 PathProgramCache]: Analyzing trace with hash -968141452, now seen corresponding path program 20 times [2018-11-26 13:19:57,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:19:57,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:19:57,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:19:57,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:19:57,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:19:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:19:58,923 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2018-11-26 13:19:59,075 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 45 [2018-11-26 13:19:59,280 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 53 [2018-11-26 13:19:59,431 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 46 [2018-11-26 13:19:59,690 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 44 [2018-11-26 13:19:59,877 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 49 [2018-11-26 13:20:01,168 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2018-11-26 13:20:01,453 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 54 [2018-11-26 13:20:01,962 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 43 [2018-11-26 13:20:02,201 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2018-11-26 13:20:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:20:07,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:20:07,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2018-11-26 13:20:07,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-26 13:20:07,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-26 13:20:07,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1889, Unknown=0, NotChecked=0, Total=2070 [2018-11-26 13:20:07,299 INFO L87 Difference]: Start difference. First operand 8268 states and 19470 transitions. Second operand 46 states. [2018-11-26 13:20:26,984 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2018-11-26 13:20:27,271 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2018-11-26 13:20:27,543 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2018-11-26 13:20:27,887 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2018-11-26 13:20:28,252 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 84 [2018-11-26 13:20:28,599 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 79 [2018-11-26 13:20:29,345 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81 [2018-11-26 13:20:29,688 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2018-11-26 13:20:29,968 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2018-11-26 13:20:30,210 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2018-11-26 13:20:30,851 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 76 [2018-11-26 13:20:31,107 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2018-11-26 13:20:31,510 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2018-11-26 13:20:31,827 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 78 [2018-11-26 13:20:32,135 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81 [2018-11-26 13:20:32,605 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 78 [2018-11-26 13:20:33,077 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 78 [2018-11-26 13:20:33,541 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 80 [2018-11-26 13:20:33,765 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 65 [2018-11-26 13:20:34,486 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 67 [2018-11-26 13:20:34,816 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 69 [2018-11-26 13:20:35,031 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 61 [2018-11-26 13:20:35,397 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 75 [2018-11-26 13:20:35,780 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 85 [2018-11-26 13:20:36,053 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 65 [2018-11-26 13:20:36,636 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 77 [2018-11-26 13:20:36,984 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 83 [2018-11-26 13:20:37,215 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2018-11-26 13:20:37,434 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2018-11-26 13:20:37,650 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2018-11-26 13:20:38,212 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2018-11-26 13:20:38,468 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2018-11-26 13:20:38,773 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2018-11-26 13:20:39,087 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2018-11-26 13:20:39,402 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2018-11-26 13:20:39,785 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2018-11-26 13:20:40,089 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2018-11-26 13:20:40,475 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2018-11-26 13:20:40,759 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2018-11-26 13:20:41,059 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 109 [2018-11-26 13:20:41,423 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 102 [2018-11-26 13:20:41,732 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2018-11-26 13:20:42,054 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2018-11-26 13:20:42,344 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2018-11-26 13:20:43,159 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2018-11-26 13:20:43,363 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-11-26 13:20:43,700 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2018-11-26 13:20:44,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:20:44,128 INFO L93 Difference]: Finished difference Result 13026 states and 31380 transitions. [2018-11-26 13:20:44,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-11-26 13:20:44,128 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 977 [2018-11-26 13:20:44,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:20:44,143 INFO L225 Difference]: With dead ends: 13026 [2018-11-26 13:20:44,143 INFO L226 Difference]: Without dead ends: 12690 [2018-11-26 13:20:44,144 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 3 SyntacticMatches, 12 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2698 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=1526, Invalid=8980, Unknown=0, NotChecked=0, Total=10506 [2018-11-26 13:20:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12690 states. [2018-11-26 13:20:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12690 to 8364. [2018-11-26 13:20:44,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8364 states. [2018-11-26 13:20:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8364 states to 8364 states and 19722 transitions. [2018-11-26 13:20:44,236 INFO L78 Accepts]: Start accepts. Automaton has 8364 states and 19722 transitions. Word has length 977 [2018-11-26 13:20:44,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:20:44,237 INFO L480 AbstractCegarLoop]: Abstraction has 8364 states and 19722 transitions. [2018-11-26 13:20:44,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-26 13:20:44,237 INFO L276 IsEmpty]: Start isEmpty. Operand 8364 states and 19722 transitions. [2018-11-26 13:20:44,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:20:44,248 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:20:44,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:20:44,249 INFO L423 AbstractCegarLoop]: === Iteration 38 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:20:44,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:20:44,250 INFO L82 PathProgramCache]: Analyzing trace with hash 164162162, now seen corresponding path program 21 times [2018-11-26 13:20:44,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:20:44,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:20:44,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:20:44,251 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:20:44,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:20:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:20:45,813 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2018-11-26 13:20:46,020 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2018-11-26 13:20:46,189 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2018-11-26 13:20:46,405 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 55 [2018-11-26 13:20:46,615 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 50 [2018-11-26 13:20:46,933 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 48 [2018-11-26 13:20:47,099 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 52 [2018-11-26 13:20:48,011 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2018-11-26 13:20:48,184 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2018-11-26 13:20:48,381 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2018-11-26 13:20:48,644 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 58 [2018-11-26 13:20:48,898 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 56 [2018-11-26 13:20:49,132 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 50 [2018-11-26 13:20:49,586 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2018-11-26 13:20:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:20:54,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:20:54,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2018-11-26 13:20:54,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-26 13:20:54,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-26 13:20:54,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1890, Unknown=0, NotChecked=0, Total=2070 [2018-11-26 13:20:54,781 INFO L87 Difference]: Start difference. First operand 8364 states and 19722 transitions. Second operand 46 states. [2018-11-26 13:21:13,493 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2018-11-26 13:21:13,852 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 74 [2018-11-26 13:21:14,191 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 81 [2018-11-26 13:21:14,594 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 83 [2018-11-26 13:21:15,046 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 90 [2018-11-26 13:21:15,456 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 88 [2018-11-26 13:21:16,247 WARN L180 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 90 [2018-11-26 13:21:16,694 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 95 [2018-11-26 13:21:17,009 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 79 [2018-11-26 13:21:17,288 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 77 [2018-11-26 13:21:17,512 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2018-11-26 13:21:18,010 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2018-11-26 13:21:18,298 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2018-11-26 13:21:18,805 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 89 [2018-11-26 13:21:19,176 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2018-11-26 13:21:19,538 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2018-11-26 13:21:20,043 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 91 [2018-11-26 13:21:20,589 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 95 [2018-11-26 13:21:21,142 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 97 [2018-11-26 13:21:21,394 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 78 [2018-11-26 13:21:21,910 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 81 [2018-11-26 13:21:22,449 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 80 [2018-11-26 13:21:22,877 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 83 [2018-11-26 13:21:23,151 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 72 [2018-11-26 13:21:23,563 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 89 [2018-11-26 13:21:24,019 WARN L180 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 112 [2018-11-26 13:21:24,335 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2018-11-26 13:21:24,534 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 74 [2018-11-26 13:21:24,765 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2018-11-26 13:21:25,560 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2018-11-26 13:21:25,828 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2018-11-26 13:21:26,093 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2018-11-26 13:21:26,434 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2018-11-26 13:21:26,695 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2018-11-26 13:21:26,997 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 96 [2018-11-26 13:21:27,295 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2018-11-26 13:21:27,700 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 120 [2018-11-26 13:21:28,021 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 102 [2018-11-26 13:21:28,426 WARN L180 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 129 [2018-11-26 13:21:28,716 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2018-11-26 13:21:29,087 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2018-11-26 13:21:29,444 WARN L180 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 124 [2018-11-26 13:21:29,838 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 120 [2018-11-26 13:21:30,156 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2018-11-26 13:21:30,495 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 116 [2018-11-26 13:21:30,864 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2018-11-26 13:21:31,232 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2018-11-26 13:21:31,546 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 105 [2018-11-26 13:21:31,982 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 134 [2018-11-26 13:21:32,396 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 129 [2018-11-26 13:21:32,761 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 120 [2018-11-26 13:21:33,432 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2018-11-26 13:21:33,651 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2018-11-26 13:21:33,981 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2018-11-26 13:21:34,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:21:34,457 INFO L93 Difference]: Finished difference Result 12942 states and 31186 transitions. [2018-11-26 13:21:34,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-11-26 13:21:34,458 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 977 [2018-11-26 13:21:34,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:21:34,471 INFO L225 Difference]: With dead ends: 12942 [2018-11-26 13:21:34,471 INFO L226 Difference]: Without dead ends: 12606 [2018-11-26 13:21:34,472 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 2 SyntacticMatches, 12 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3404 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=1816, Invalid=10394, Unknown=0, NotChecked=0, Total=12210 [2018-11-26 13:21:34,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12606 states. [2018-11-26 13:21:34,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12606 to 8400. [2018-11-26 13:21:34,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8400 states. [2018-11-26 13:21:34,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8400 states to 8400 states and 19812 transitions. [2018-11-26 13:21:34,566 INFO L78 Accepts]: Start accepts. Automaton has 8400 states and 19812 transitions. Word has length 977 [2018-11-26 13:21:34,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:21:34,566 INFO L480 AbstractCegarLoop]: Abstraction has 8400 states and 19812 transitions. [2018-11-26 13:21:34,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-26 13:21:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 8400 states and 19812 transitions. [2018-11-26 13:21:34,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:21:34,577 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:21:34,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:21:34,577 INFO L423 AbstractCegarLoop]: === Iteration 39 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:21:34,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:21:34,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1623248496, now seen corresponding path program 22 times [2018-11-26 13:21:34,578 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:21:34,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:21:34,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:21:34,579 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:21:34,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:21:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:21:36,116 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 44 [2018-11-26 13:21:36,303 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 51 [2018-11-26 13:21:36,484 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 50 [2018-11-26 13:21:36,730 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 48 [2018-11-26 13:21:36,897 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2018-11-26 13:21:37,034 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2018-11-26 13:21:37,890 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2018-11-26 13:21:38,095 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 51 [2018-11-26 13:21:38,322 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 53 [2018-11-26 13:21:38,557 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 52 [2018-11-26 13:21:38,781 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 47 [2018-11-26 13:21:39,383 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2018-11-26 13:21:44,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:21:44,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:21:44,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2018-11-26 13:21:44,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-11-26 13:21:44,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-11-26 13:21:44,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1814, Unknown=0, NotChecked=0, Total=1980 [2018-11-26 13:21:44,306 INFO L87 Difference]: Start difference. First operand 8400 states and 19812 transitions. Second operand 45 states. [2018-11-26 13:22:03,493 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 65 [2018-11-26 13:22:03,785 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2018-11-26 13:22:04,063 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2018-11-26 13:22:04,403 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2018-11-26 13:22:04,802 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 84 [2018-11-26 13:22:05,137 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2018-11-26 13:22:05,825 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2018-11-26 13:22:06,186 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 94 [2018-11-26 13:22:06,474 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2018-11-26 13:22:06,722 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2018-11-26 13:22:06,941 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2018-11-26 13:22:07,411 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2018-11-26 13:22:07,655 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2018-11-26 13:22:08,099 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 85 [2018-11-26 13:22:08,427 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 85 [2018-11-26 13:22:08,769 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 86 [2018-11-26 13:22:09,255 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 88 [2018-11-26 13:22:09,752 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 93 [2018-11-26 13:22:10,272 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 93 [2018-11-26 13:22:10,507 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2018-11-26 13:22:10,987 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2018-11-26 13:22:11,513 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 87 [2018-11-26 13:22:11,816 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85 [2018-11-26 13:22:12,207 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 91 [2018-11-26 13:22:12,470 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2018-11-26 13:22:12,914 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 89 [2018-11-26 13:22:13,379 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 109 [2018-11-26 13:22:13,684 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2018-11-26 13:22:13,911 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2018-11-26 13:22:15,066 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2018-11-26 13:22:15,321 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2018-11-26 13:22:15,619 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2018-11-26 13:22:15,848 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2018-11-26 13:22:16,119 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2018-11-26 13:22:16,416 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2018-11-26 13:22:16,802 WARN L180 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2018-11-26 13:22:17,107 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2018-11-26 13:22:17,462 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 113 [2018-11-26 13:22:17,732 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2018-11-26 13:22:18,050 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2018-11-26 13:22:18,367 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2018-11-26 13:22:18,745 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2018-11-26 13:22:19,029 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2018-11-26 13:22:19,328 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2018-11-26 13:22:19,664 WARN L180 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2018-11-26 13:22:20,049 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 113 [2018-11-26 13:22:20,335 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2018-11-26 13:22:20,732 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2018-11-26 13:22:21,147 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2018-11-26 13:22:21,492 WARN L180 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2018-11-26 13:22:22,111 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-11-26 13:22:22,327 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2018-11-26 13:22:22,646 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2018-11-26 13:22:23,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:22:23,122 INFO L93 Difference]: Finished difference Result 12900 states and 31095 transitions. [2018-11-26 13:22:23,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-11-26 13:22:23,122 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 977 [2018-11-26 13:22:23,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:22:23,137 INFO L225 Difference]: With dead ends: 12900 [2018-11-26 13:22:23,137 INFO L226 Difference]: Without dead ends: 12564 [2018-11-26 13:22:23,138 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 12 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3339 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=1746, Invalid=10244, Unknown=0, NotChecked=0, Total=11990 [2018-11-26 13:22:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12564 states. [2018-11-26 13:22:23,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12564 to 8424. [2018-11-26 13:22:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8424 states. [2018-11-26 13:22:23,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8424 states to 8424 states and 19872 transitions. [2018-11-26 13:22:23,243 INFO L78 Accepts]: Start accepts. Automaton has 8424 states and 19872 transitions. Word has length 977 [2018-11-26 13:22:23,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:22:23,244 INFO L480 AbstractCegarLoop]: Abstraction has 8424 states and 19872 transitions. [2018-11-26 13:22:23,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-11-26 13:22:23,244 INFO L276 IsEmpty]: Start isEmpty. Operand 8424 states and 19872 transitions. [2018-11-26 13:22:23,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:22:23,256 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:22:23,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:22:23,257 INFO L423 AbstractCegarLoop]: === Iteration 40 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:22:23,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:22:23,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1686385872, now seen corresponding path program 23 times [2018-11-26 13:22:23,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:22:23,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:22:23,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:22:23,259 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:22:23,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:22:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:22:24,151 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2018-11-26 13:22:24,915 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2018-11-26 13:22:25,086 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 45 [2018-11-26 13:22:25,316 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 52 [2018-11-26 13:22:25,513 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 47 [2018-11-26 13:22:25,809 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 44 [2018-11-26 13:22:25,999 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 49 [2018-11-26 13:22:26,283 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2018-11-26 13:22:26,552 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2018-11-26 13:22:27,008 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2018-11-26 13:22:27,207 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 44 [2018-11-26 13:22:27,456 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2018-11-26 13:22:27,714 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 51 [2018-11-26 13:22:27,924 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 42 [2018-11-26 13:22:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:22:33,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:22:33,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2018-11-26 13:22:33,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-26 13:22:33,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-26 13:22:33,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1893, Unknown=0, NotChecked=0, Total=2070 [2018-11-26 13:22:33,177 INFO L87 Difference]: Start difference. First operand 8424 states and 19872 transitions. Second operand 46 states. [2018-11-26 13:22:52,070 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 68 [2018-11-26 13:22:52,419 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2018-11-26 13:22:52,708 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2018-11-26 13:22:53,038 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2018-11-26 13:22:53,410 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 84 [2018-11-26 13:22:53,736 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2018-11-26 13:22:54,416 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 84 [2018-11-26 13:22:54,765 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 90 [2018-11-26 13:22:55,038 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 74 [2018-11-26 13:22:55,272 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2018-11-26 13:22:55,872 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 76 [2018-11-26 13:22:56,103 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2018-11-26 13:22:56,495 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 80 [2018-11-26 13:22:56,792 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2018-11-26 13:22:57,096 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2018-11-26 13:22:57,544 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2018-11-26 13:22:58,002 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2018-11-26 13:22:58,507 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 90 [2018-11-26 13:22:58,720 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2018-11-26 13:22:59,186 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 73 [2018-11-26 13:22:59,681 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2018-11-26 13:22:59,954 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 78 [2018-11-26 13:23:00,390 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 80 [2018-11-26 13:23:00,648 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 82 [2018-11-26 13:23:00,886 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2018-11-26 13:23:01,343 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 80 [2018-11-26 13:23:01,796 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 82 [2018-11-26 13:23:02,113 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2018-11-26 13:23:03,254 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2018-11-26 13:23:03,530 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-11-26 13:23:03,840 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2018-11-26 13:23:04,155 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-11-26 13:23:04,470 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99 [2018-11-26 13:23:04,889 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2018-11-26 13:23:05,197 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2018-11-26 13:23:05,589 WARN L180 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2018-11-26 13:23:05,920 WARN L180 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2018-11-26 13:23:06,226 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2018-11-26 13:23:06,602 WARN L180 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2018-11-26 13:23:06,894 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-11-26 13:23:07,221 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2018-11-26 13:23:07,533 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2018-11-26 13:23:08,258 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2018-11-26 13:23:08,466 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-11-26 13:23:08,786 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-11-26 13:23:09,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:23:09,313 INFO L93 Difference]: Finished difference Result 13515 states and 32669 transitions. [2018-11-26 13:23:09,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-11-26 13:23:09,314 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 977 [2018-11-26 13:23:09,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:23:09,328 INFO L225 Difference]: With dead ends: 13515 [2018-11-26 13:23:09,328 INFO L226 Difference]: Without dead ends: 13179 [2018-11-26 13:23:09,328 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 2 SyntacticMatches, 11 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2937 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=1514, Invalid=8992, Unknown=0, NotChecked=0, Total=10506 [2018-11-26 13:23:09,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13179 states. [2018-11-26 13:23:09,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13179 to 8580. [2018-11-26 13:23:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8580 states. [2018-11-26 13:23:09,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8580 states to 8580 states and 20262 transitions. [2018-11-26 13:23:09,431 INFO L78 Accepts]: Start accepts. Automaton has 8580 states and 20262 transitions. Word has length 977 [2018-11-26 13:23:09,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:23:09,432 INFO L480 AbstractCegarLoop]: Abstraction has 8580 states and 20262 transitions. [2018-11-26 13:23:09,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-26 13:23:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 8580 states and 20262 transitions. [2018-11-26 13:23:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2018-11-26 13:23:09,444 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:23:09,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:23:09,445 INFO L423 AbstractCegarLoop]: === Iteration 41 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:23:09,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:23:09,445 INFO L82 PathProgramCache]: Analyzing trace with hash -622443114, now seen corresponding path program 24 times [2018-11-26 13:23:09,445 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:23:09,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:23:09,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:23:09,447 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:23:09,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:23:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:23:10,899 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2018-11-26 13:23:11,039 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2018-11-26 13:23:11,231 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 51 [2018-11-26 13:23:11,423 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 50 [2018-11-26 13:23:11,692 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 48 [2018-11-26 13:23:11,873 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 51 [2018-11-26 13:23:12,020 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2018-11-26 13:23:12,188 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2018-11-26 13:23:12,475 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2018-11-26 13:23:12,636 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2018-11-26 13:23:12,806 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 47 [2018-11-26 13:23:13,018 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2018-11-26 13:23:13,211 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 50 [2018-11-26 13:23:13,420 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 49 [2018-11-26 13:23:13,648 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 43 [2018-11-26 13:23:14,202 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2018-11-26 13:23:19,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:23:19,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:23:19,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2018-11-26 13:23:19,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-11-26 13:23:19,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-11-26 13:23:19,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1820, Unknown=0, NotChecked=0, Total=1980 [2018-11-26 13:23:19,122 INFO L87 Difference]: Start difference. First operand 8580 states and 20262 transitions. Second operand 45 states. [2018-11-26 13:23:41,621 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2018-11-26 13:23:41,944 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2018-11-26 13:23:42,214 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2018-11-26 13:23:42,581 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2018-11-26 13:23:42,974 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2018-11-26 13:23:43,353 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2018-11-26 13:23:44,089 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 89 [2018-11-26 13:23:44,471 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 100 [2018-11-26 13:23:44,761 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 82 [2018-11-26 13:23:44,996 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2018-11-26 13:23:45,637 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 80 [2018-11-26 13:23:45,887 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2018-11-26 13:23:46,322 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2018-11-26 13:23:46,655 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 82 [2018-11-26 13:23:46,959 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2018-11-26 13:23:47,430 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 79 [2018-11-26 13:23:47,919 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 84 [2018-11-26 13:23:48,462 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 95 [2018-11-26 13:23:48,715 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2018-11-26 13:23:49,206 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 73 [2018-11-26 13:23:49,700 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 84 [2018-11-26 13:23:49,996 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 76 [2018-11-26 13:23:50,457 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 103 [2018-11-26 13:23:50,731 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 75 [2018-11-26 13:23:50,999 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2018-11-26 13:23:51,193 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 62 [2018-11-26 13:23:51,858 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 86 [2018-11-26 13:23:52,398 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 105 [2018-11-26 13:23:52,753 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2018-11-26 13:23:52,967 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2018-11-26 13:23:53,187 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74 [2018-11-26 13:23:54,164 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2018-11-26 13:23:54,458 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2018-11-26 13:23:54,741 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2018-11-26 13:23:55,087 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 103 [2018-11-26 13:23:55,326 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2018-11-26 13:23:55,622 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2018-11-26 13:23:55,961 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2018-11-26 13:23:56,551 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2018-11-26 13:23:56,878 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2018-11-26 13:23:57,304 WARN L180 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 121 [2018-11-26 13:23:57,572 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2018-11-26 13:23:57,897 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2018-11-26 13:23:58,232 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 113 [2018-11-26 13:23:58,620 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2018-11-26 13:23:58,964 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 108 [2018-11-26 13:23:59,260 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2018-11-26 13:23:59,594 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2018-11-26 13:23:59,951 WARN L180 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2018-11-26 13:24:00,227 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2018-11-26 13:24:00,634 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2018-11-26 13:24:01,067 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2018-11-26 13:24:01,376 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2018-11-26 13:24:02,027 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-11-26 13:24:02,227 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2018-11-26 13:24:02,592 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-11-26 13:24:03,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:24:03,056 INFO L93 Difference]: Finished difference Result 13974 states and 33839 transitions. [2018-11-26 13:24:03,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-11-26 13:24:03,056 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 977 [2018-11-26 13:24:03,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:24:03,071 INFO L225 Difference]: With dead ends: 13974 [2018-11-26 13:24:03,071 INFO L226 Difference]: Without dead ends: 13638 [2018-11-26 13:24:03,072 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 3 SyntacticMatches, 12 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3523 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=1948, Invalid=10934, Unknown=0, NotChecked=0, Total=12882 [2018-11-26 13:24:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13638 states. [2018-11-26 13:24:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13638 to 8184. [2018-11-26 13:24:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8184 states. [2018-11-26 13:24:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8184 states to 8184 states and 19208 transitions. [2018-11-26 13:24:03,164 INFO L78 Accepts]: Start accepts. Automaton has 8184 states and 19208 transitions. Word has length 977 [2018-11-26 13:24:03,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:24:03,165 INFO L480 AbstractCegarLoop]: Abstraction has 8184 states and 19208 transitions. [2018-11-26 13:24:03,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-11-26 13:24:03,165 INFO L276 IsEmpty]: Start isEmpty. Operand 8184 states and 19208 transitions. [2018-11-26 13:24:03,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2018-11-26 13:24:03,175 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:24:03,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:24:03,176 INFO L423 AbstractCegarLoop]: === Iteration 42 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:24:03,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:24:03,176 INFO L82 PathProgramCache]: Analyzing trace with hash -975479844, now seen corresponding path program 1 times [2018-11-26 13:24:03,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:24:03,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:24:03,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:24:03,178 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:24:03,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:24:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:24:04,797 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 40 [2018-11-26 13:24:04,967 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 40 [2018-11-26 13:24:05,198 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 47 [2018-11-26 13:24:05,403 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 42 [2018-11-26 13:24:05,706 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 40 [2018-11-26 13:24:05,903 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 44 [2018-11-26 13:24:06,702 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2018-11-26 13:24:06,877 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2018-11-26 13:24:07,105 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 52 [2018-11-26 13:24:07,354 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 55 [2018-11-26 13:24:07,572 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 47 [2018-11-26 13:24:13,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:24:13,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:24:13,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2018-11-26 13:24:13,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-26 13:24:13,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-26 13:24:13,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1991, Unknown=0, NotChecked=0, Total=2162 [2018-11-26 13:24:13,221 INFO L87 Difference]: Start difference. First operand 8184 states and 19208 transitions. Second operand 47 states. [2018-11-26 13:24:33,151 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2018-11-26 13:24:33,739 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2018-11-26 13:24:34,067 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 73 [2018-11-26 13:24:34,361 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2018-11-26 13:24:34,702 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 85 [2018-11-26 13:24:35,114 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2018-11-26 13:24:35,478 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 86 [2018-11-26 13:24:36,175 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 88 [2018-11-26 13:24:36,555 WARN L180 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 95 [2018-11-26 13:24:36,821 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2018-11-26 13:24:37,047 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-11-26 13:24:37,645 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2018-11-26 13:24:37,869 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2018-11-26 13:24:38,313 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2018-11-26 13:24:38,597 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2018-11-26 13:24:38,915 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2018-11-26 13:24:39,419 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 82 [2018-11-26 13:24:39,892 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 86 [2018-11-26 13:24:40,403 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 88 [2018-11-26 13:24:40,636 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 72 [2018-11-26 13:24:41,099 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 76 [2018-11-26 13:24:41,622 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 80 [2018-11-26 13:24:41,882 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 74 [2018-11-26 13:24:42,306 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 87 [2018-11-26 13:24:42,561 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2018-11-26 13:24:42,808 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2018-11-26 13:24:43,260 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 82 [2018-11-26 13:24:43,730 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 89 [2018-11-26 13:24:44,037 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2018-11-26 13:24:44,754 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2018-11-26 13:24:45,233 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2018-11-26 13:24:45,937 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2018-11-26 13:24:46,215 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2018-11-26 13:24:46,561 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2018-11-26 13:24:46,811 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88 [2018-11-26 13:24:47,136 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2018-11-26 13:24:47,487 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 102 [2018-11-26 13:24:47,956 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 110 [2018-11-26 13:24:48,274 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2018-11-26 13:24:48,691 WARN L180 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 118 [2018-11-26 13:24:48,995 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2018-11-26 13:24:49,341 WARN L180 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 101 [2018-11-26 13:24:49,675 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2018-11-26 13:24:50,155 WARN L180 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 109 [2018-11-26 13:24:50,474 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 106 [2018-11-26 13:24:50,803 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 109 [2018-11-26 13:24:51,167 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2018-11-26 13:24:51,571 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 117 [2018-11-26 13:24:51,922 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2018-11-26 13:24:52,330 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 125 [2018-11-26 13:24:52,813 WARN L180 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 121 [2018-11-26 13:24:53,183 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 113 [2018-11-26 13:24:53,909 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-11-26 13:24:54,177 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-11-26 13:24:54,576 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2018-11-26 13:24:54,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:24:54,953 INFO L93 Difference]: Finished difference Result 14658 states and 35566 transitions. [2018-11-26 13:24:54,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-11-26 13:24:54,953 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 979 [2018-11-26 13:24:54,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:24:54,967 INFO L225 Difference]: With dead ends: 14658 [2018-11-26 13:24:54,967 INFO L226 Difference]: Without dead ends: 14322 [2018-11-26 13:24:54,968 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 2 SyntacticMatches, 14 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3828 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=2034, Invalid=12008, Unknown=0, NotChecked=0, Total=14042 [2018-11-26 13:24:54,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14322 states. [2018-11-26 13:24:55,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14322 to 8813. [2018-11-26 13:24:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8813 states. [2018-11-26 13:24:55,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 20858 transitions. [2018-11-26 13:24:55,079 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 20858 transitions. Word has length 979 [2018-11-26 13:24:55,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:24:55,080 INFO L480 AbstractCegarLoop]: Abstraction has 8813 states and 20858 transitions. [2018-11-26 13:24:55,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-26 13:24:55,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 20858 transitions. [2018-11-26 13:24:55,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2018-11-26 13:24:55,092 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:24:55,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:24:55,093 INFO L423 AbstractCegarLoop]: === Iteration 43 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:24:55,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:24:55,094 INFO L82 PathProgramCache]: Analyzing trace with hash -966209896, now seen corresponding path program 2 times [2018-11-26 13:24:55,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:24:55,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:24:55,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:24:55,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:24:55,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:24:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:24:56,281 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 43 [2018-11-26 13:24:56,659 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2018-11-26 13:24:57,033 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2018-11-26 13:24:57,239 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 53 [2018-11-26 13:24:57,458 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 53 [2018-11-26 13:24:57,835 WARN L180 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 62 [2018-11-26 13:24:58,109 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 55 [2018-11-26 13:24:58,418 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 54 [2018-11-26 13:24:58,711 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 58 [2018-11-26 13:24:59,007 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 57 [2018-11-26 13:24:59,335 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 58 [2018-11-26 13:24:59,662 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 60 [2018-11-26 13:24:59,919 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 51 [2018-11-26 13:25:00,171 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 49 [2018-11-26 13:25:00,349 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2018-11-26 13:25:00,566 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2018-11-26 13:25:00,795 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 44 [2018-11-26 13:25:01,132 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2018-11-26 13:25:01,410 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 53 [2018-11-26 13:25:01,734 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 56 [2018-11-26 13:25:02,188 WARN L180 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 58 [2018-11-26 13:25:02,468 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 51 [2018-11-26 13:25:02,800 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 49 [2018-11-26 13:25:03,148 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 53 [2018-11-26 13:25:03,427 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 46 [2018-11-26 13:25:03,770 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2018-11-26 13:25:04,078 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2018-11-26 13:25:04,283 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2018-11-26 13:25:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:25:09,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:25:09,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2018-11-26 13:25:09,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-11-26 13:25:09,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-11-26 13:25:09,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=2453, Unknown=0, NotChecked=0, Total=2652 [2018-11-26 13:25:09,495 INFO L87 Difference]: Start difference. First operand 8813 states and 20858 transitions. Second operand 52 states. [2018-11-26 13:25:37,182 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2018-11-26 13:25:37,592 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2018-11-26 13:25:37,915 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 81 [2018-11-26 13:25:38,342 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 86 [2018-11-26 13:25:38,816 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 91 [2018-11-26 13:25:39,227 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2018-11-26 13:25:39,688 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2018-11-26 13:25:40,183 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2018-11-26 13:25:40,537 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2018-11-26 13:25:40,860 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2018-11-26 13:25:41,171 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2018-11-26 13:25:41,694 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2018-11-26 13:25:41,950 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2018-11-26 13:25:42,269 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2018-11-26 13:25:42,565 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2018-11-26 13:25:42,810 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2018-11-26 13:25:43,339 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2018-11-26 13:25:43,634 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2018-11-26 13:25:44,152 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 82 [2018-11-26 13:25:44,529 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2018-11-26 13:25:44,915 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2018-11-26 13:25:45,455 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 86 [2018-11-26 13:25:46,019 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 90 [2018-11-26 13:25:46,639 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 92 [2018-11-26 13:25:46,928 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2018-11-26 13:25:47,507 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 79 [2018-11-26 13:25:48,130 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 86 [2018-11-26 13:25:48,438 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2018-11-26 13:25:48,938 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 91 [2018-11-26 13:25:49,238 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2018-11-26 13:25:49,539 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2018-11-26 13:25:50,078 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 88 [2018-11-26 13:25:50,414 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 88 [2018-11-26 13:25:50,776 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 90 [2018-11-26 13:25:51,122 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2018-11-26 13:25:51,538 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 93 [2018-11-26 13:25:51,815 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2018-11-26 13:25:52,163 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2018-11-26 13:25:52,377 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2018-11-26 13:25:52,894 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 90 [2018-11-26 13:25:53,368 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 92 [2018-11-26 13:25:53,706 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2018-11-26 13:25:54,034 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2018-11-26 13:25:54,258 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2018-11-26 13:25:55,512 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2018-11-26 13:25:55,830 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2018-11-26 13:25:56,146 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2018-11-26 13:25:56,512 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 94 [2018-11-26 13:25:56,796 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2018-11-26 13:25:57,124 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2018-11-26 13:25:57,468 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 99 [2018-11-26 13:25:57,910 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 104 [2018-11-26 13:25:58,238 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2018-11-26 13:25:58,675 WARN L180 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 109 [2018-11-26 13:25:58,967 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2018-11-26 13:25:59,315 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2018-11-26 13:25:59,673 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 104 [2018-11-26 13:26:00,064 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 98 [2018-11-26 13:26:00,373 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2018-11-26 13:26:00,684 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 102 [2018-11-26 13:26:01,047 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2018-11-26 13:26:01,434 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 107 [2018-11-26 13:26:01,740 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2018-11-26 13:26:02,163 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 112 [2018-11-26 13:26:02,628 WARN L180 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 107 [2018-11-26 13:26:02,982 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2018-11-26 13:26:04,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:26:04,653 INFO L93 Difference]: Finished difference Result 13631 states and 33038 transitions. [2018-11-26 13:26:04,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-11-26 13:26:04,653 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 979 [2018-11-26 13:26:04,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:26:04,667 INFO L225 Difference]: With dead ends: 13631 [2018-11-26 13:26:04,667 INFO L226 Difference]: Without dead ends: 13295 [2018-11-26 13:26:04,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 2 SyntacticMatches, 10 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4553 ImplicationChecksByTransitivity, 29.5s TimeCoverageRelationStatistics Valid=2321, Invalid=15235, Unknown=0, NotChecked=0, Total=17556 [2018-11-26 13:26:04,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13295 states. [2018-11-26 13:26:04,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13295 to 8289. [2018-11-26 13:26:04,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8289 states. [2018-11-26 13:26:04,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8289 states to 8289 states and 19478 transitions. [2018-11-26 13:26:04,769 INFO L78 Accepts]: Start accepts. Automaton has 8289 states and 19478 transitions. Word has length 979 [2018-11-26 13:26:04,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:26:04,770 INFO L480 AbstractCegarLoop]: Abstraction has 8289 states and 19478 transitions. [2018-11-26 13:26:04,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-11-26 13:26:04,771 INFO L276 IsEmpty]: Start isEmpty. Operand 8289 states and 19478 transitions. [2018-11-26 13:26:04,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2018-11-26 13:26:04,782 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:26:04,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:26:04,783 INFO L423 AbstractCegarLoop]: === Iteration 44 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:26:04,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:26:04,784 INFO L82 PathProgramCache]: Analyzing trace with hash -243337200, now seen corresponding path program 1 times [2018-11-26 13:26:04,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:26:04,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:26:04,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:26:04,786 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-26 13:26:04,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:26:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:26:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:26:05,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:26:05,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-26 13:26:05,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-26 13:26:05,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-26 13:26:05,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-26 13:26:05,165 INFO L87 Difference]: Start difference. First operand 8289 states and 19478 transitions. Second operand 3 states. [2018-11-26 13:26:05,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:26:05,195 INFO L93 Difference]: Finished difference Result 9252 states and 21934 transitions. [2018-11-26 13:26:05,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-26 13:26:05,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 985 [2018-11-26 13:26:05,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:26:05,205 INFO L225 Difference]: With dead ends: 9252 [2018-11-26 13:26:05,205 INFO L226 Difference]: Without dead ends: 8967 [2018-11-26 13:26:05,205 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 [2018-11-26 13:26:05,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8967 states. [2018-11-26 13:26:05,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8967 to 8142. [2018-11-26 13:26:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8142 states. [2018-11-26 13:26:05,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8142 states to 8142 states and 19092 transitions. [2018-11-26 13:26:05,282 INFO L78 Accepts]: Start accepts. Automaton has 8142 states and 19092 transitions. Word has length 985 [2018-11-26 13:26:05,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:26:05,283 INFO L480 AbstractCegarLoop]: Abstraction has 8142 states and 19092 transitions. [2018-11-26 13:26:05,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-26 13:26:05,283 INFO L276 IsEmpty]: Start isEmpty. Operand 8142 states and 19092 transitions. [2018-11-26 13:26:05,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2018-11-26 13:26:05,293 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:26:05,294 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:26:05,294 INFO L423 AbstractCegarLoop]: === Iteration 45 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:26:05,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:26:05,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1277492288, now seen corresponding path program 1 times [2018-11-26 13:26:05,295 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:26:05,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:26:05,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:26:05,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:26:05,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:26:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:26:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:26:05,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:26:05,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-26 13:26:05,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-26 13:26:05,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-26 13:26:05,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-26 13:26:05,689 INFO L87 Difference]: Start difference. First operand 8142 states and 19092 transitions. Second operand 3 states. [2018-11-26 13:26:05,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:26:05,719 INFO L93 Difference]: Finished difference Result 7320 states and 16958 transitions. [2018-11-26 13:26:05,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-26 13:26:05,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 985 [2018-11-26 13:26:05,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:26:05,727 INFO L225 Difference]: With dead ends: 7320 [2018-11-26 13:26:05,727 INFO L226 Difference]: Without dead ends: 6894 [2018-11-26 13:26:05,728 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 [2018-11-26 13:26:05,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6894 states. [2018-11-26 13:26:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6894 to 6894. [2018-11-26 13:26:05,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6894 states. [2018-11-26 13:26:05,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6894 states to 6894 states and 15781 transitions. [2018-11-26 13:26:05,795 INFO L78 Accepts]: Start accepts. Automaton has 6894 states and 15781 transitions. Word has length 985 [2018-11-26 13:26:05,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:26:05,795 INFO L480 AbstractCegarLoop]: Abstraction has 6894 states and 15781 transitions. [2018-11-26 13:26:05,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-26 13:26:05,795 INFO L276 IsEmpty]: Start isEmpty. Operand 6894 states and 15781 transitions. [2018-11-26 13:26:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2018-11-26 13:26:05,806 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:26:05,806 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-26 13:26:05,806 INFO L423 AbstractCegarLoop]: === Iteration 46 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:26:05,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:26:05,807 INFO L82 PathProgramCache]: Analyzing trace with hash 850199584, now seen corresponding path program 2 times [2018-11-26 13:26:05,807 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:26:05,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:26:05,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:26:05,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:26:05,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:26:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-26 13:26:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-26 13:26:06,338 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-26 13:26:06,583 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-26 13:26:06,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:26:06 BasicIcfg [2018-11-26 13:26:06,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-26 13:26:06,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-26 13:26:06,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-26 13:26:06,585 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-26 13:26:06,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:33" (3/4) ... [2018-11-26 13:26:06,596 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-26 13:26:06,807 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-26 13:26:06,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-26 13:26:06,810 INFO L168 Benchmark]: Toolchain (without parser) took 1535505.95 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 889.2 MB). Free memory was 938.4 MB in the beginning and 81.0 MB in the end (delta: 857.5 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. [2018-11-26 13:26:06,811 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-26 13:26:06,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -114.5 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2018-11-26 13:26:06,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-26 13:26:06,811 INFO L168 Benchmark]: Boogie Preprocessor took 89.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-26 13:26:06,811 INFO L168 Benchmark]: RCFGBuilder took 1570.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 864.8 MB in the end (delta: 174.6 MB). Peak memory consumption was 174.6 MB. Max. memory is 11.5 GB. [2018-11-26 13:26:06,812 INFO L168 Benchmark]: TraceAbstraction took 1532738.33 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 774.9 MB). Free memory was 864.8 MB in the beginning and 220.0 MB in the end (delta: 644.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-11-26 13:26:06,812 INFO L168 Benchmark]: Witness Printer took 224.06 ms. Allocated memory is still 1.9 GB. Free memory was 220.0 MB in the beginning and 81.0 MB in the end (delta: 139.0 MB). Peak memory consumption was 139.0 MB. Max. memory is 11.5 GB. [2018-11-26 13:26:06,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 773.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -114.5 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 105.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1570.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 864.8 MB in the end (delta: 174.6 MB). Peak memory consumption was 174.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1532738.33 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 774.9 MB). Free memory was 864.8 MB in the beginning and 220.0 MB in the end (delta: 644.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 224.06 ms. Allocated memory is still 1.9 GB. Free memory was 220.0 MB in the beginning and 81.0 MB in the end (delta: 139.0 MB). Peak memory consumption was 139.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1026]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L930] -1 pthread_mutex_t m; VAL [m={1631:0}] [L932] -1 int stored_elements[(400)]; VAL [m={1631:0}, stored_elements={1637:0}] [L933] -1 _Bool enqueue_flag, dequeue_flag; VAL [dequeue_flag=0, enqueue_flag=0, m={1631:0}, stored_elements={1637:0}] [L934] -1 QType queue; VAL [dequeue_flag=0, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1037] -1 pthread_t id1, id2; VAL [dequeue_flag=0, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1038] -1 enqueue_flag=(1) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1039] -1 dequeue_flag=(0) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L937] -1 q->head=0 VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L938] -1 q->tail=0 VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L939] -1 q->amount=0 VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L943] EXPR -1 q->head VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L943] EXPR -1 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L943] COND TRUE -1 q->head == q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L946] -1 return (-1); VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1041] COND FALSE -1 !(!empty(&queue)==(-1)) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1045] FCALL, FORK -1 pthread_create(&id1, ((void *)0), t1, &queue) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1046] FCALL, FORK -1 pthread_create(&id2, ((void *)0), t2, &queue) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1019] 1 int i; VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L990] 0 int value, i; VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1020] 1 i=0 VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L990] 0 int value, i; VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1020] COND TRUE 1 i<(400) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L992] 0 value = __VERIFIER_nondet_int() VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L963] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L963] 0 q->element[q->tail] = x VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L964] EXPR 0 q->amount VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L964] 0 q->amount++ VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L965] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L965] COND FALSE 0 !(q->tail == (400)) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L971] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L971] 0 q->tail++ VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L973] 0 return 0; VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L993] COND FALSE 0 !(enqueue(&queue,value)) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L996] 0 stored_elements[0]=value VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L943] EXPR 0 q->head VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L943] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L943] COND FALSE 0 !(q->head == q->tail) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L949] 0 return 0; VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L997] COND FALSE 0 !(empty(&queue)) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1001] 0 i=0 VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1001] COND TRUE 0 i<((400)-1) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1023] COND FALSE 1 !(\read(dequeue_flag)) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1020] 1 i++ VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1020] COND TRUE 1 i<(400) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1004] COND TRUE 0 \read(enqueue_flag) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1006] 0 value = __VERIFIER_nondet_int() VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L963] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L963] 0 q->element[q->tail] = x VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L964] EXPR 0 q->amount VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L964] 0 q->amount++ VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L965] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L965] COND FALSE 0 !(q->tail == (400)) VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L971] EXPR 0 q->tail VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L971] 0 q->tail++ VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L973] 0 return 0; VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1008] 0 stored_elements[i+1]=value VAL [dequeue_flag=0, enqueue_flag=1, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1009] 0 enqueue_flag=(0) VAL [dequeue_flag=0, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1010] 0 dequeue_flag=(1) VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1023] COND TRUE 1 \read(dequeue_flag) VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L977] 1 int x; VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L978] EXPR 1 q->head VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L978] EXPR 1 q->element[q->head] VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L978] 1 x = q->element[q->head] VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L979] EXPR 1 q->amount VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L979] 1 q->amount-- VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L980] EXPR 1 q->head VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L980] COND FALSE 1 !(q->head == (400)) VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L985] EXPR 1 q->head VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L985] 1 q->head++ VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L986] 1 return x; VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1025] EXPR 1 stored_elements[i] VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1025] COND TRUE 1 !dequeue(&queue)==stored_elements[i] VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] [L1026] 1 __VERIFIER_error() VAL [dequeue_flag=1, enqueue_flag=0, m={1631:0}, queue={1613:0}, stored_elements={1637:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 1187 locations, 5 error locations. UNSAFE Result, 1532.5s OverallTime, 46 OverallIterations, 2 TraceHistogramMax, 1200.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22788 SDtfs, 127260 SDslu, 262934 SDs, 0 SdLazy, 872853 SolverSat, 5679 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 699.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3873 GetRequests, 105 SyntacticMatches, 377 SemanticMatches, 3391 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93671 ImplicationChecksByTransitivity, 590.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18030occurred 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: 6.5s AutomataMinimizationTime, 45 MinimizatonAttempts, 117016 StatesRemovedByMinimization, 39 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 205.4s InterpolantComputationTime, 43840 NumberOfCodeBlocks, 43840 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 42810 ConstructedInterpolants, 0 QuantifiedInterpolants, 693254080 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 45 InterpolantComputations, 45 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...