/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 16:47:13,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 16:47:13,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 16:47:13,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 16:47:13,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 16:47:13,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 16:47:13,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 16:47:13,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 16:47:13,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 16:47:13,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 16:47:13,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 16:47:13,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 16:47:13,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 16:47:13,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 16:47:13,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 16:47:13,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 16:47:13,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 16:47:13,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 16:47:13,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 16:47:13,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 16:47:13,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 16:47:13,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 16:47:13,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 16:47:13,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 16:47:13,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 16:47:13,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 16:47:13,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 16:47:13,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 16:47:13,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 16:47:13,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 16:47:13,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 16:47:13,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 16:47:13,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 16:47:13,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 16:47:13,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 16:47:13,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 16:47:13,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 16:47:13,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 16:47:13,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 16:47:13,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 16:47:13,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 16:47:13,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 16:47:13,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 16:47:13,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 16:47:13,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 16:47:13,277 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 16:47:13,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 16:47:13,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 16:47:13,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 16:47:13,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 16:47:13,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 16:47:13,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 16:47:13,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 16:47:13,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 16:47:13,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 16:47:13,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 16:47:13,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 16:47:13,279 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 16:47:13,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 16:47:13,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 16:47:13,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:47:13,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 16:47:13,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 16:47:13,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 16:47:13,280 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 16:47:13,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 16:47:13,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 16:47:13,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 16:47:13,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 16:47:13,550 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 16:47:13,551 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2020-07-17 16:47:13,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1359a27a9/ffa1e2d1dd3e4da0a30ac7e645b82db8/FLAG4b7147644 [2020-07-17 16:47:14,108 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 16:47:14,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2020-07-17 16:47:14,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1359a27a9/ffa1e2d1dd3e4da0a30ac7e645b82db8/FLAG4b7147644 [2020-07-17 16:47:14,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1359a27a9/ffa1e2d1dd3e4da0a30ac7e645b82db8 [2020-07-17 16:47:14,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 16:47:14,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 16:47:14,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 16:47:14,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 16:47:14,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 16:47:14,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:47:14" (1/1) ... [2020-07-17 16:47:14,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cec31c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:14, skipping insertion in model container [2020-07-17 16:47:14,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:47:14" (1/1) ... [2020-07-17 16:47:14,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 16:47:14,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 16:47:15,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:47:15,035 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 16:47:15,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:47:15,173 INFO L208 MainTranslator]: Completed translation [2020-07-17 16:47:15,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15 WrapperNode [2020-07-17 16:47:15,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 16:47:15,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 16:47:15,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 16:47:15,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 16:47:15,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15" (1/1) ... [2020-07-17 16:47:15,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15" (1/1) ... [2020-07-17 16:47:15,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15" (1/1) ... [2020-07-17 16:47:15,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15" (1/1) ... [2020-07-17 16:47:15,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15" (1/1) ... [2020-07-17 16:47:15,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15" (1/1) ... [2020-07-17 16:47:15,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15" (1/1) ... [2020-07-17 16:47:15,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 16:47:15,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 16:47:15,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 16:47:15,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 16:47:15,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15" (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 [2020-07-17 16:47:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 16:47:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 16:47:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 16:47:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-07-17 16:47:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-07-17 16:47:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-07-17 16:47:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 16:47:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 16:47:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 16:47:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 16:47:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 16:47:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 16:47:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 16:47:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 16:47:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 16:47:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 16:47:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 16:47:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 16:47:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 16:47:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 16:47:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 16:47:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 16:47:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 16:47:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 16:47:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 16:47:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 16:47:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 16:47:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 16:47:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 16:47:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 16:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 16:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-17 16:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 16:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-17 16:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 16:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 16:47:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 16:47:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 16:47:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 16:47:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 16:47:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 16:47:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 16:47:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 16:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 16:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 16:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 16:47:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 16:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 16:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-07-17 16:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-07-17 16:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-07-17 16:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 16:47:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 16:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 16:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 16:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 16:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 16:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 16:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 16:47:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 16:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 16:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 16:47:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 16:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 16:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 16:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 16:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 16:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 16:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 16:47:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 16:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 16:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 16:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 16:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 16:47:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 16:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 16:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 16:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 16:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 16:47:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 16:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 16:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 16:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 16:47:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 16:47:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 16:47:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 16:47:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 16:47:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 16:47:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 16:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 16:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 16:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 16:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-17 16:47:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 16:47:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-17 16:47:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 16:47:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 16:47:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 16:47:16,429 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 16:47:16,429 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 16:47:16,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:47:16 BoogieIcfgContainer [2020-07-17 16:47:16,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 16:47:16,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 16:47:16,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 16:47:16,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 16:47:16,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:47:14" (1/3) ... [2020-07-17 16:47:16,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9df438f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:47:16, skipping insertion in model container [2020-07-17 16:47:16,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:47:15" (2/3) ... [2020-07-17 16:47:16,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9df438f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:47:16, skipping insertion in model container [2020-07-17 16:47:16,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:47:16" (3/3) ... [2020-07-17 16:47:16,444 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2020-07-17 16:47:16,453 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 16:47:16,462 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 16:47:16,475 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 16:47:16,496 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 16:47:16,496 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 16:47:16,496 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 16:47:16,497 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 16:47:16,497 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 16:47:16,497 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 16:47:16,497 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 16:47:16,497 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 16:47:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2020-07-17 16:47:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-17 16:47:16,540 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:16,542 INFO L422 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] [2020-07-17 16:47:16,542 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:16,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:16,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1445921999, now seen corresponding path program 1 times [2020-07-17 16:47:16,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:16,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883610228] [2020-07-17 16:47:16,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,275 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:17,461 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:17,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883610228] [2020-07-17 16:47:17,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:17,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 16:47:17,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622567880] [2020-07-17 16:47:17,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 16:47:17,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:17,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 16:47:17,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:47:17,489 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 4 states. [2020-07-17 16:47:18,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:18,843 INFO L93 Difference]: Finished difference Result 525 states and 615 transitions. [2020-07-17 16:47:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 16:47:18,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-07-17 16:47:18,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:18,863 INFO L225 Difference]: With dead ends: 525 [2020-07-17 16:47:18,863 INFO L226 Difference]: Without dead ends: 329 [2020-07-17 16:47:18,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:47:18,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-07-17 16:47:19,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 281. [2020-07-17 16:47:19,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-07-17 16:47:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 306 transitions. [2020-07-17 16:47:19,031 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 306 transitions. Word has length 160 [2020-07-17 16:47:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:19,032 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 306 transitions. [2020-07-17 16:47:19,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 16:47:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 306 transitions. [2020-07-17 16:47:19,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-17 16:47:19,037 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:19,037 INFO L422 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] [2020-07-17 16:47:19,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 16:47:19,038 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:19,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:19,038 INFO L82 PathProgramCache]: Analyzing trace with hash -345471189, now seen corresponding path program 1 times [2020-07-17 16:47:19,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:19,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492227958] [2020-07-17 16:47:19,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,479 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:19,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492227958] [2020-07-17 16:47:19,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:19,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 16:47:19,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864116145] [2020-07-17 16:47:19,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 16:47:19,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:19,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 16:47:19,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 16:47:19,584 INFO L87 Difference]: Start difference. First operand 281 states and 306 transitions. Second operand 5 states. [2020-07-17 16:47:20,244 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:21,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:21,332 INFO L93 Difference]: Finished difference Result 450 states and 507 transitions. [2020-07-17 16:47:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 16:47:21,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-07-17 16:47:21,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:21,338 INFO L225 Difference]: With dead ends: 450 [2020-07-17 16:47:21,338 INFO L226 Difference]: Without dead ends: 318 [2020-07-17 16:47:21,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 16:47:21,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-17 16:47:21,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 271. [2020-07-17 16:47:21,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-07-17 16:47:21,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2020-07-17 16:47:21,416 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 161 [2020-07-17 16:47:21,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:21,416 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2020-07-17 16:47:21,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 16:47:21,417 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2020-07-17 16:47:21,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-17 16:47:21,419 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:21,420 INFO L422 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] [2020-07-17 16:47:21,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 16:47:21,420 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:21,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:21,420 INFO L82 PathProgramCache]: Analyzing trace with hash 527888294, now seen corresponding path program 1 times [2020-07-17 16:47:21,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:21,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032035696] [2020-07-17 16:47:21,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,794 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:21,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032035696] [2020-07-17 16:47:21,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:21,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 16:47:21,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411533048] [2020-07-17 16:47:21,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 16:47:21,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:21,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 16:47:21,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-17 16:47:21,945 INFO L87 Difference]: Start difference. First operand 271 states and 293 transitions. Second operand 11 states. [2020-07-17 16:47:22,521 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:47:22,893 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:47:23,192 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:47:23,522 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:23,824 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:47:24,102 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:25,885 INFO L93 Difference]: Finished difference Result 497 states and 572 transitions. [2020-07-17 16:47:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:47:25,886 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-07-17 16:47:25,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:25,890 INFO L225 Difference]: With dead ends: 497 [2020-07-17 16:47:25,890 INFO L226 Difference]: Without dead ends: 341 [2020-07-17 16:47:25,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-07-17 16:47:25,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-07-17 16:47:25,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 271. [2020-07-17 16:47:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-07-17 16:47:25,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 292 transitions. [2020-07-17 16:47:25,972 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 292 transitions. Word has length 174 [2020-07-17 16:47:25,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:25,973 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 292 transitions. [2020-07-17 16:47:25,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 16:47:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 292 transitions. [2020-07-17 16:47:25,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-17 16:47:25,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:25,976 INFO L422 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] [2020-07-17 16:47:25,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 16:47:25,977 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:25,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:25,977 INFO L82 PathProgramCache]: Analyzing trace with hash -59747891, now seen corresponding path program 1 times [2020-07-17 16:47:25,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:25,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416029367] [2020-07-17 16:47:25,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,310 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:26,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416029367] [2020-07-17 16:47:26,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:26,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 16:47:26,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561131065] [2020-07-17 16:47:26,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 16:47:26,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:26,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 16:47:26,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 16:47:26,490 INFO L87 Difference]: Start difference. First operand 271 states and 292 transitions. Second operand 8 states. [2020-07-17 16:47:27,160 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:47:29,682 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:30,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:30,317 INFO L93 Difference]: Finished difference Result 699 states and 829 transitions. [2020-07-17 16:47:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 16:47:30,320 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-07-17 16:47:30,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:30,324 INFO L225 Difference]: With dead ends: 699 [2020-07-17 16:47:30,324 INFO L226 Difference]: Without dead ends: 543 [2020-07-17 16:47:30,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:47:30,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-07-17 16:47:30,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 405. [2020-07-17 16:47:30,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-07-17 16:47:30,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 437 transitions. [2020-07-17 16:47:30,462 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 437 transitions. Word has length 187 [2020-07-17 16:47:30,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:30,463 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 437 transitions. [2020-07-17 16:47:30,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 16:47:30,463 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 437 transitions. [2020-07-17 16:47:30,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-17 16:47:30,466 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:30,466 INFO L422 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] [2020-07-17 16:47:30,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 16:47:30,467 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:30,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:30,467 INFO L82 PathProgramCache]: Analyzing trace with hash -476532751, now seen corresponding path program 1 times [2020-07-17 16:47:30,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:30,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204453103] [2020-07-17 16:47:30,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,802 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:31,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:31,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204453103] [2020-07-17 16:47:31,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:31,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-17 16:47:31,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276591339] [2020-07-17 16:47:31,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 16:47:31,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:31,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 16:47:31,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-07-17 16:47:31,045 INFO L87 Difference]: Start difference. First operand 405 states and 437 transitions. Second operand 14 states. [2020-07-17 16:47:31,659 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:31,966 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:47:32,247 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:32,517 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:47:32,785 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:33,811 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:34,132 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:47:34,423 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:34,710 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:47:34,978 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:36,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:36,433 INFO L93 Difference]: Finished difference Result 838 states and 987 transitions. [2020-07-17 16:47:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 16:47:36,433 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 211 [2020-07-17 16:47:36,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:36,437 INFO L225 Difference]: With dead ends: 838 [2020-07-17 16:47:36,437 INFO L226 Difference]: Without dead ends: 548 [2020-07-17 16:47:36,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-07-17 16:47:36,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-17 16:47:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 411. [2020-07-17 16:47:36,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-07-17 16:47:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 443 transitions. [2020-07-17 16:47:36,549 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 443 transitions. Word has length 211 [2020-07-17 16:47:36,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:36,550 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 443 transitions. [2020-07-17 16:47:36,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 16:47:36,550 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 443 transitions. [2020-07-17 16:47:36,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-17 16:47:36,553 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:36,553 INFO L422 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] [2020-07-17 16:47:36,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 16:47:36,554 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:36,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:36,555 INFO L82 PathProgramCache]: Analyzing trace with hash 497337425, now seen corresponding path program 1 times [2020-07-17 16:47:36,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:36,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181602302] [2020-07-17 16:47:36,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,860 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 16:47:37,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181602302] [2020-07-17 16:47:37,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:37,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 16:47:37,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448067595] [2020-07-17 16:47:37,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 16:47:37,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:37,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 16:47:37,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-17 16:47:37,034 INFO L87 Difference]: Start difference. First operand 411 states and 443 transitions. Second operand 11 states. [2020-07-17 16:47:37,568 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:47:38,473 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:38,730 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:47:39,898 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:47:40,174 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:40,480 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:41,033 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:41,316 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:47:41,584 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:42,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:42,161 INFO L93 Difference]: Finished difference Result 844 states and 982 transitions. [2020-07-17 16:47:42,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-17 16:47:42,161 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-07-17 16:47:42,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:42,166 INFO L225 Difference]: With dead ends: 844 [2020-07-17 16:47:42,166 INFO L226 Difference]: Without dead ends: 548 [2020-07-17 16:47:42,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-07-17 16:47:42,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-17 16:47:42,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 410. [2020-07-17 16:47:42,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-07-17 16:47:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 440 transitions. [2020-07-17 16:47:42,326 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 440 transitions. Word has length 211 [2020-07-17 16:47:42,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:42,327 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 440 transitions. [2020-07-17 16:47:42,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 16:47:42,327 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 440 transitions. [2020-07-17 16:47:42,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-17 16:47:42,329 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:42,329 INFO L422 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] [2020-07-17 16:47:42,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 16:47:42,330 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:42,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:42,330 INFO L82 PathProgramCache]: Analyzing trace with hash -217934529, now seen corresponding path program 1 times [2020-07-17 16:47:42,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:42,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563090762] [2020-07-17 16:47:42,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,646 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:42,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563090762] [2020-07-17 16:47:42,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:42,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 16:47:42,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916778830] [2020-07-17 16:47:42,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 16:47:42,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:42,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 16:47:42,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-17 16:47:42,846 INFO L87 Difference]: Start difference. First operand 410 states and 440 transitions. Second operand 11 states. [2020-07-17 16:47:44,212 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:44,501 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:47:44,804 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-07-17 16:47:45,081 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:45,371 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:47:45,628 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:47:46,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:46,829 INFO L93 Difference]: Finished difference Result 847 states and 991 transitions. [2020-07-17 16:47:46,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:47:46,830 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-07-17 16:47:46,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:46,835 INFO L225 Difference]: With dead ends: 847 [2020-07-17 16:47:46,835 INFO L226 Difference]: Without dead ends: 552 [2020-07-17 16:47:46,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-07-17 16:47:46,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-07-17 16:47:47,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 418. [2020-07-17 16:47:47,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-07-17 16:47:47,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 448 transitions. [2020-07-17 16:47:47,075 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 448 transitions. Word has length 234 [2020-07-17 16:47:47,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:47,076 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 448 transitions. [2020-07-17 16:47:47,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 16:47:47,077 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 448 transitions. [2020-07-17 16:47:47,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-17 16:47:47,081 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:47,082 INFO L422 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] [2020-07-17 16:47:47,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 16:47:47,082 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:47,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:47,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1176917148, now seen corresponding path program 1 times [2020-07-17 16:47:47,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:47,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324824394] [2020-07-17 16:47:47,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,452 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:47,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324824394] [2020-07-17 16:47:47,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:47,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 16:47:47,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140711069] [2020-07-17 16:47:47,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 16:47:47,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:47,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 16:47:47,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 16:47:47,660 INFO L87 Difference]: Start difference. First operand 418 states and 448 transitions. Second operand 8 states. [2020-07-17 16:47:48,157 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:47:48,770 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:47:51,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:47:51,439 INFO L93 Difference]: Finished difference Result 1183 states and 1420 transitions. [2020-07-17 16:47:51,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-17 16:47:51,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2020-07-17 16:47:51,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:47:51,445 INFO L225 Difference]: With dead ends: 1183 [2020-07-17 16:47:51,445 INFO L226 Difference]: Without dead ends: 880 [2020-07-17 16:47:51,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-07-17 16:47:51,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2020-07-17 16:47:51,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 673. [2020-07-17 16:47:51,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-07-17 16:47:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 740 transitions. [2020-07-17 16:47:51,653 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 740 transitions. Word has length 234 [2020-07-17 16:47:51,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:47:51,654 INFO L479 AbstractCegarLoop]: Abstraction has 673 states and 740 transitions. [2020-07-17 16:47:51,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 16:47:51,654 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 740 transitions. [2020-07-17 16:47:51,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-17 16:47:51,656 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:47:51,656 INFO L422 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] [2020-07-17 16:47:51,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 16:47:51,657 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:47:51,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:47:51,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1214461665, now seen corresponding path program 1 times [2020-07-17 16:47:51,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:47:51,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124947686] [2020-07-17 16:47:51,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:47:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,004 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:47:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:47:52,273 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 16:47:52,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124947686] [2020-07-17 16:47:52,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:47:52,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-17 16:47:52,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640864755] [2020-07-17 16:47:52,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-17 16:47:52,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:47:52,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-17 16:47:52,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-07-17 16:47:52,275 INFO L87 Difference]: Start difference. First operand 673 states and 740 transitions. Second operand 15 states. [2020-07-17 16:47:53,062 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-07-17 16:47:53,870 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:47:55,582 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-07-17 16:47:56,121 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-07-17 16:47:56,486 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:56,765 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:47:57,318 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-07-17 16:47:57,613 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:47:57,947 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:47:58,236 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:00,286 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:00,561 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:00,850 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:01,482 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-07-17 16:48:02,952 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-07-17 16:48:03,512 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-07-17 16:48:04,071 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-07-17 16:48:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:04,805 INFO L93 Difference]: Finished difference Result 2086 states and 2498 transitions. [2020-07-17 16:48:04,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-07-17 16:48:04,806 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 239 [2020-07-17 16:48:04,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:04,815 INFO L225 Difference]: With dead ends: 2086 [2020-07-17 16:48:04,815 INFO L226 Difference]: Without dead ends: 1635 [2020-07-17 16:48:04,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1111 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=754, Invalid=2906, Unknown=0, NotChecked=0, Total=3660 [2020-07-17 16:48:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2020-07-17 16:48:05,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1194. [2020-07-17 16:48:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-07-17 16:48:05,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1303 transitions. [2020-07-17 16:48:05,422 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1303 transitions. Word has length 239 [2020-07-17 16:48:05,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:05,425 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1303 transitions. [2020-07-17 16:48:05,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-17 16:48:05,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1303 transitions. [2020-07-17 16:48:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-07-17 16:48:05,429 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:05,431 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:05,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 16:48:05,431 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:05,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:05,432 INFO L82 PathProgramCache]: Analyzing trace with hash 2117034326, now seen corresponding path program 1 times [2020-07-17 16:48:05,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:05,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756826312] [2020-07-17 16:48:05,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:05,861 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 34 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-17 16:48:06,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756826312] [2020-07-17 16:48:06,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:48:06,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-07-17 16:48:06,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325808778] [2020-07-17 16:48:06,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-17 16:48:06,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:06,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-17 16:48:06,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:48:06,554 INFO L87 Difference]: Start difference. First operand 1194 states and 1303 transitions. Second operand 19 states. [2020-07-17 16:48:07,285 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:48:07,708 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-07-17 16:48:08,021 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-07-17 16:48:08,366 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:48:08,675 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-07-17 16:48:08,974 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:48:09,946 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-07-17 16:48:10,281 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-07-17 16:48:10,577 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:11,154 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-07-17 16:48:12,267 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-07-17 16:48:12,636 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-07-17 16:48:13,557 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:14,551 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-07-17 16:48:15,451 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:48:16,062 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-07-17 16:48:16,619 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-07-17 16:48:17,011 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:17,788 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:18,406 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-07-17 16:48:18,788 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-07-17 16:48:19,520 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-07-17 16:48:20,136 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 196 [2020-07-17 16:48:21,565 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-07-17 16:48:21,862 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:48:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:23,332 INFO L93 Difference]: Finished difference Result 2885 states and 3339 transitions. [2020-07-17 16:48:23,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-07-17 16:48:23,334 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 325 [2020-07-17 16:48:23,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:23,345 INFO L225 Difference]: With dead ends: 2885 [2020-07-17 16:48:23,345 INFO L226 Difference]: Without dead ends: 1908 [2020-07-17 16:48:23,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1916 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1278, Invalid=5364, Unknown=0, NotChecked=0, Total=6642 [2020-07-17 16:48:23,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2020-07-17 16:48:23,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1425. [2020-07-17 16:48:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-07-17 16:48:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1562 transitions. [2020-07-17 16:48:23,869 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1562 transitions. Word has length 325 [2020-07-17 16:48:23,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:23,870 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 1562 transitions. [2020-07-17 16:48:23,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-17 16:48:23,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1562 transitions. [2020-07-17 16:48:23,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2020-07-17 16:48:23,876 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:23,877 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:23,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 16:48:23,877 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:23,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:23,878 INFO L82 PathProgramCache]: Analyzing trace with hash -830990222, now seen corresponding path program 1 times [2020-07-17 16:48:23,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:23,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802961377] [2020-07-17 16:48:23,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,195 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 124 proven. 38 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-07-17 16:48:24,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802961377] [2020-07-17 16:48:24,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:48:24,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-07-17 16:48:24,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802526637] [2020-07-17 16:48:24,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-17 16:48:24,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:24,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-17 16:48:24,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-17 16:48:24,821 INFO L87 Difference]: Start difference. First operand 1425 states and 1562 transitions. Second operand 17 states. [2020-07-17 16:48:26,679 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:26,975 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:27,332 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:27,645 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:48:27,937 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:28,214 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:30,238 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:30,539 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:48:32,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:32,458 INFO L93 Difference]: Finished difference Result 4194 states and 4958 transitions. [2020-07-17 16:48:32,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-07-17 16:48:32,459 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 517 [2020-07-17 16:48:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:32,474 INFO L225 Difference]: With dead ends: 4194 [2020-07-17 16:48:32,475 INFO L226 Difference]: Without dead ends: 2689 [2020-07-17 16:48:32,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=486, Invalid=1676, Unknown=0, NotChecked=0, Total=2162 [2020-07-17 16:48:32,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2020-07-17 16:48:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 1847. [2020-07-17 16:48:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1847 states. [2020-07-17 16:48:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2057 transitions. [2020-07-17 16:48:33,166 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2057 transitions. Word has length 517 [2020-07-17 16:48:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:33,167 INFO L479 AbstractCegarLoop]: Abstraction has 1847 states and 2057 transitions. [2020-07-17 16:48:33,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-17 16:48:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2057 transitions. [2020-07-17 16:48:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-07-17 16:48:33,174 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:33,175 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:33,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 16:48:33,175 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:33,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:33,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1343403747, now seen corresponding path program 1 times [2020-07-17 16:48:33,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:33,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240369758] [2020-07-17 16:48:33,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,507 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:34,202 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 134 proven. 41 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2020-07-17 16:48:34,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240369758] [2020-07-17 16:48:34,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:48:34,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-07-17 16:48:34,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218484246] [2020-07-17 16:48:34,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-17 16:48:34,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:34,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-17 16:48:34,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:48:34,206 INFO L87 Difference]: Start difference. First operand 1847 states and 2057 transitions. Second operand 19 states. [2020-07-17 16:48:34,765 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:35,161 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:35,453 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:48:35,757 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:36,061 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:48:36,348 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:37,354 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:37,660 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:38,877 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:39,257 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:39,621 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:40,120 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:41,192 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:41,479 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:42,447 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:42,767 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:43,140 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:48:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:44,659 INFO L93 Difference]: Finished difference Result 3884 states and 4538 transitions. [2020-07-17 16:48:44,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-07-17 16:48:44,660 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 531 [2020-07-17 16:48:44,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:44,672 INFO L225 Difference]: With dead ends: 3884 [2020-07-17 16:48:44,672 INFO L226 Difference]: Without dead ends: 2290 [2020-07-17 16:48:44,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=665, Invalid=2641, Unknown=0, NotChecked=0, Total=3306 [2020-07-17 16:48:44,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2020-07-17 16:48:45,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1775. [2020-07-17 16:48:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1775 states. [2020-07-17 16:48:45,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 1958 transitions. [2020-07-17 16:48:45,624 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 1958 transitions. Word has length 531 [2020-07-17 16:48:45,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:48:45,625 INFO L479 AbstractCegarLoop]: Abstraction has 1775 states and 1958 transitions. [2020-07-17 16:48:45,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-17 16:48:45,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 1958 transitions. [2020-07-17 16:48:45,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-07-17 16:48:45,632 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:48:45,633 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:48:45,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-17 16:48:45,633 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:48:45,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:48:45,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1677407297, now seen corresponding path program 1 times [2020-07-17 16:48:45,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:48:45,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379793327] [2020-07-17 16:48:45,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:48:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:45,961 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:48:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:48:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 123 proven. 11 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2020-07-17 16:48:46,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379793327] [2020-07-17 16:48:46,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:48:46,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-07-17 16:48:46,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602409141] [2020-07-17 16:48:46,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-17 16:48:46,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:48:46,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-17 16:48:46,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-07-17 16:48:46,623 INFO L87 Difference]: Start difference. First operand 1775 states and 1958 transitions. Second operand 17 states. [2020-07-17 16:48:47,204 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:48:48,371 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:48:50,058 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:50,403 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:48:50,769 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:51,124 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:51,435 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:48:51,760 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:48:52,053 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:52,384 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:48:52,719 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:53,111 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:48:53,423 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:53,816 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:48:55,777 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:48:56,352 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-07-17 16:48:56,886 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-07-17 16:48:57,198 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:48:57,543 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-07-17 16:48:57,861 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-07-17 16:48:59,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:48:59,768 INFO L93 Difference]: Finished difference Result 5731 states and 6740 transitions. [2020-07-17 16:48:59,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-07-17 16:48:59,769 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 532 [2020-07-17 16:48:59,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:48:59,790 INFO L225 Difference]: With dead ends: 5731 [2020-07-17 16:48:59,791 INFO L226 Difference]: Without dead ends: 4084 [2020-07-17 16:48:59,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=783, Invalid=3123, Unknown=0, NotChecked=0, Total=3906 [2020-07-17 16:48:59,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2020-07-17 16:49:01,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 3192. [2020-07-17 16:49:01,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3192 states. [2020-07-17 16:49:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 3489 transitions. [2020-07-17 16:49:01,084 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 3489 transitions. Word has length 532 [2020-07-17 16:49:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:49:01,085 INFO L479 AbstractCegarLoop]: Abstraction has 3192 states and 3489 transitions. [2020-07-17 16:49:01,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-17 16:49:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 3489 transitions. [2020-07-17 16:49:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-07-17 16:49:01,095 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:49:01,096 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:49:01,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-17 16:49:01,096 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:49:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:49:01,097 INFO L82 PathProgramCache]: Analyzing trace with hash -822119102, now seen corresponding path program 1 times [2020-07-17 16:49:01,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:49:01,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014802333] [2020-07-17 16:49:01,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:49:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,435 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:49:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 90 proven. 50 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2020-07-17 16:49:02,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014802333] [2020-07-17 16:49:02,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:49:02,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-07-17 16:49:02,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834292104] [2020-07-17 16:49:02,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-17 16:49:02,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:49:02,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-17 16:49:02,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:49:02,252 INFO L87 Difference]: Start difference. First operand 3192 states and 3489 transitions. Second operand 23 states. [2020-07-17 16:49:02,860 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:03,281 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:03,572 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:49:03,873 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:04,170 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:49:04,440 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:05,407 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:07,302 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:07,644 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:08,027 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:08,407 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:08,713 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:09,133 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:09,435 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:09,767 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:10,089 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:10,485 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:10,798 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:11,127 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:11,741 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:49:12,457 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-07-17 16:49:13,024 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:49:17,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:49:17,435 INFO L93 Difference]: Finished difference Result 7010 states and 8091 transitions. [2020-07-17 16:49:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-07-17 16:49:17,436 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 533 [2020-07-17 16:49:17,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:49:17,457 INFO L225 Difference]: With dead ends: 7010 [2020-07-17 16:49:17,458 INFO L226 Difference]: Without dead ends: 4190 [2020-07-17 16:49:17,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 136 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1923 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=1192, Invalid=5288, Unknown=0, NotChecked=0, Total=6480 [2020-07-17 16:49:17,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2020-07-17 16:49:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 2983. [2020-07-17 16:49:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2983 states. [2020-07-17 16:49:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 3242 transitions. [2020-07-17 16:49:18,613 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 3242 transitions. Word has length 533 [2020-07-17 16:49:18,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:49:18,613 INFO L479 AbstractCegarLoop]: Abstraction has 2983 states and 3242 transitions. [2020-07-17 16:49:18,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-17 16:49:18,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 3242 transitions. [2020-07-17 16:49:18,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-07-17 16:49:18,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:49:18,624 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:49:18,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-17 16:49:18,624 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:49:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:49:18,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1789840089, now seen corresponding path program 1 times [2020-07-17 16:49:18,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:49:18,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014210375] [2020-07-17 16:49:18,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:49:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:18,963 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:49:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:19,631 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 127 proven. 31 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-07-17 16:49:19,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014210375] [2020-07-17 16:49:19,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:49:19,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-07-17 16:49:19,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72886801] [2020-07-17 16:49:19,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-17 16:49:19,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:49:19,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-17 16:49:19,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:49:19,633 INFO L87 Difference]: Start difference. First operand 2983 states and 3242 transitions. Second operand 23 states. [2020-07-17 16:49:20,238 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:20,655 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:21,037 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:49:21,340 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:21,636 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:49:21,931 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:22,907 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:24,946 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:25,302 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:25,685 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:26,061 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:26,379 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:26,707 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:27,000 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:27,337 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:27,674 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:28,078 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:28,393 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:28,753 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:31,388 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:49:31,987 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-07-17 16:49:32,528 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:49:35,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:49:35,316 INFO L93 Difference]: Finished difference Result 6459 states and 7411 transitions. [2020-07-17 16:49:35,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-07-17 16:49:35,316 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 538 [2020-07-17 16:49:35,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:49:35,336 INFO L225 Difference]: With dead ends: 6459 [2020-07-17 16:49:35,336 INFO L226 Difference]: Without dead ends: 3848 [2020-07-17 16:49:35,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1949 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=1207, Invalid=5435, Unknown=0, NotChecked=0, Total=6642 [2020-07-17 16:49:35,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3848 states. [2020-07-17 16:49:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3848 to 2754. [2020-07-17 16:49:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2754 states. [2020-07-17 16:49:36,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 2991 transitions. [2020-07-17 16:49:36,469 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 2991 transitions. Word has length 538 [2020-07-17 16:49:36,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:49:36,470 INFO L479 AbstractCegarLoop]: Abstraction has 2754 states and 2991 transitions. [2020-07-17 16:49:36,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-17 16:49:36,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 2991 transitions. [2020-07-17 16:49:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-07-17 16:49:36,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:49:36,480 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:49:36,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-17 16:49:36,480 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:49:36,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:49:36,480 INFO L82 PathProgramCache]: Analyzing trace with hash -835229441, now seen corresponding path program 2 times [2020-07-17 16:49:36,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:49:36,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295634132] [2020-07-17 16:49:36,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:49:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,820 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:49:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:37,498 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 144 proven. 37 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2020-07-17 16:49:37,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295634132] [2020-07-17 16:49:37,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:49:37,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-07-17 16:49:37,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274044162] [2020-07-17 16:49:37,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-17 16:49:37,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:49:37,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-17 16:49:37,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:49:37,501 INFO L87 Difference]: Start difference. First operand 2754 states and 2991 transitions. Second operand 19 states. [2020-07-17 16:49:38,062 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:40,140 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:40,453 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:41,043 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:49:41,349 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:49:41,901 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-07-17 16:49:42,198 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:49:42,730 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:49:43,063 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:43,389 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:43,682 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:43,969 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:46,440 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:46,757 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:50,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:49:50,463 INFO L93 Difference]: Finished difference Result 6677 states and 7828 transitions. [2020-07-17 16:49:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-07-17 16:49:50,464 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 538 [2020-07-17 16:49:50,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:49:50,486 INFO L225 Difference]: With dead ends: 6677 [2020-07-17 16:49:50,487 INFO L226 Difference]: Without dead ends: 5076 [2020-07-17 16:49:50,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 152 SyntacticMatches, 5 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2081 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1162, Invalid=5318, Unknown=0, NotChecked=0, Total=6480 [2020-07-17 16:49:50,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2020-07-17 16:49:51,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 3301. [2020-07-17 16:49:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3301 states. [2020-07-17 16:49:51,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3301 states to 3301 states and 3576 transitions. [2020-07-17 16:49:51,632 INFO L78 Accepts]: Start accepts. Automaton has 3301 states and 3576 transitions. Word has length 538 [2020-07-17 16:49:51,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:49:51,632 INFO L479 AbstractCegarLoop]: Abstraction has 3301 states and 3576 transitions. [2020-07-17 16:49:51,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-17 16:49:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3301 states and 3576 transitions. [2020-07-17 16:49:51,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2020-07-17 16:49:51,640 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:49:51,640 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:49:51,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-17 16:49:51,640 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:49:51,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:49:51,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1795671739, now seen corresponding path program 1 times [2020-07-17 16:49:51,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:49:51,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017062295] [2020-07-17 16:49:51,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:49:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:51,969 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:49:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:49:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 132 proven. 66 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2020-07-17 16:49:52,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017062295] [2020-07-17 16:49:52,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:49:52,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-07-17 16:49:52,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166075649] [2020-07-17 16:49:52,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-17 16:49:52,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:49:52,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-17 16:49:52,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:49:52,819 INFO L87 Difference]: Start difference. First operand 3301 states and 3576 transitions. Second operand 19 states. [2020-07-17 16:49:53,396 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:55,044 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:49:55,922 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:56,240 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:56,844 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-07-17 16:49:57,156 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:49:57,720 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 193 [2020-07-17 16:49:58,024 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:49:58,563 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-07-17 16:49:59,189 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-07-17 16:49:59,818 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-07-17 16:50:00,392 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-07-17 16:50:00,689 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:03,332 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:03,646 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:05,129 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:06,194 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:06,520 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:07,096 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:50:07,384 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:50:07,966 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-07-17 16:50:08,260 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:50:08,807 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-07-17 16:50:09,135 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:50:09,473 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-07-17 16:50:09,793 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-17 16:50:15,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:50:15,505 INFO L93 Difference]: Finished difference Result 8891 states and 10524 transitions. [2020-07-17 16:50:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2020-07-17 16:50:15,605 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 553 [2020-07-17 16:50:15,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:50:15,630 INFO L225 Difference]: With dead ends: 8891 [2020-07-17 16:50:15,630 INFO L226 Difference]: Without dead ends: 6982 [2020-07-17 16:50:15,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 181 SyntacticMatches, 6 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5700 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=2467, Invalid=12785, Unknown=0, NotChecked=0, Total=15252 [2020-07-17 16:50:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6982 states. [2020-07-17 16:50:17,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6982 to 4064. [2020-07-17 16:50:17,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4064 states. [2020-07-17 16:50:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 4391 transitions. [2020-07-17 16:50:17,036 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 4391 transitions. Word has length 553 [2020-07-17 16:50:17,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:50:17,037 INFO L479 AbstractCegarLoop]: Abstraction has 4064 states and 4391 transitions. [2020-07-17 16:50:17,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-17 16:50:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 4391 transitions. [2020-07-17 16:50:17,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2020-07-17 16:50:17,049 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:50:17,049 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:50:17,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-17 16:50:17,050 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:50:17,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:50:17,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1879765246, now seen corresponding path program 3 times [2020-07-17 16:50:17,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:50:17,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919634797] [2020-07-17 16:50:17,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:50:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,400 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:50:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 255 proven. 5 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-07-17 16:50:17,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919634797] [2020-07-17 16:50:17,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:50:17,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-07-17 16:50:17,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191502525] [2020-07-17 16:50:17,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-17 16:50:17,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:50:17,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-17 16:50:17,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-07-17 16:50:17,932 INFO L87 Difference]: Start difference. First operand 4064 states and 4391 transitions. Second operand 18 states. [2020-07-17 16:50:18,592 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:19,498 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:20,607 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:21,456 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:21,765 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:22,353 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:50:22,663 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:50:23,207 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-07-17 16:50:23,514 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-17 16:50:24,044 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:50:32,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:50:32,388 INFO L93 Difference]: Finished difference Result 8364 states and 9629 transitions. [2020-07-17 16:50:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-07-17 16:50:32,389 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 640 [2020-07-17 16:50:32,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:50:32,437 INFO L225 Difference]: With dead ends: 8364 [2020-07-17 16:50:32,437 INFO L226 Difference]: Without dead ends: 5747 [2020-07-17 16:50:32,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 171 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1049, Invalid=4207, Unknown=0, NotChecked=0, Total=5256 [2020-07-17 16:50:32,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2020-07-17 16:50:35,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 3838. [2020-07-17 16:50:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3838 states. [2020-07-17 16:50:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 4113 transitions. [2020-07-17 16:50:35,930 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 4113 transitions. Word has length 640 [2020-07-17 16:50:35,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:50:35,930 INFO L479 AbstractCegarLoop]: Abstraction has 3838 states and 4113 transitions. [2020-07-17 16:50:35,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-17 16:50:35,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 4113 transitions. [2020-07-17 16:50:35,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2020-07-17 16:50:35,941 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:50:35,941 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:50:35,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-17 16:50:35,941 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:50:35,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:50:35,942 INFO L82 PathProgramCache]: Analyzing trace with hash 622944476, now seen corresponding path program 2 times [2020-07-17 16:50:35,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:50:35,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641970347] [2020-07-17 16:50:35,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:50:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,316 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:50:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 249 proven. 13 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2020-07-17 16:50:36,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641970347] [2020-07-17 16:50:36,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:50:36,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-07-17 16:50:36,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54125176] [2020-07-17 16:50:36,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-17 16:50:36,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:50:36,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-17 16:50:36,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-07-17 16:50:36,807 INFO L87 Difference]: Start difference. First operand 3838 states and 4113 transitions. Second operand 15 states. [2020-07-17 16:50:37,377 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:38,099 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:39,045 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:50:43,113 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:50:49,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:50:49,074 INFO L93 Difference]: Finished difference Result 9133 states and 10536 transitions. [2020-07-17 16:50:49,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-07-17 16:50:49,074 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 655 [2020-07-17 16:50:49,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:50:49,094 INFO L225 Difference]: With dead ends: 9133 [2020-07-17 16:50:49,094 INFO L226 Difference]: Without dead ends: 6742 [2020-07-17 16:50:49,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 193 SyntacticMatches, 5 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2635 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1284, Invalid=6026, Unknown=0, NotChecked=0, Total=7310 [2020-07-17 16:50:49,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6742 states. [2020-07-17 16:50:50,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6742 to 4342. [2020-07-17 16:50:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4342 states. [2020-07-17 16:50:50,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 4652 transitions. [2020-07-17 16:50:50,765 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 4652 transitions. Word has length 655 [2020-07-17 16:50:50,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:50:50,766 INFO L479 AbstractCegarLoop]: Abstraction has 4342 states and 4652 transitions. [2020-07-17 16:50:50,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-17 16:50:50,766 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 4652 transitions. [2020-07-17 16:50:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2020-07-17 16:50:50,777 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:50:50,777 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:50:50,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-17 16:50:50,778 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:50:50,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:50:50,778 INFO L82 PathProgramCache]: Analyzing trace with hash 84137668, now seen corresponding path program 1 times [2020-07-17 16:50:50,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:50:50,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230476417] [2020-07-17 16:50:50,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:50:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,204 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:50:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:50:52,125 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 164 proven. 135 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2020-07-17 16:50:52,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230476417] [2020-07-17 16:50:52,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 16:50:52,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-07-17 16:50:52,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386192569] [2020-07-17 16:50:52,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-17 16:50:52,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:50:52,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-17 16:50:52,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2020-07-17 16:50:52,128 INFO L87 Difference]: Start difference. First operand 4342 states and 4652 transitions. Second operand 26 states. [2020-07-17 16:50:53,003 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-07-17 16:50:54,328 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-07-17 16:50:56,754 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-07-17 16:50:57,382 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-07-17 16:50:58,023 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-07-17 16:50:58,616 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-07-17 16:50:59,331 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-07-17 16:50:59,930 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-07-17 16:51:00,499 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-07-17 16:51:01,101 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:51:01,691 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-07-17 16:51:02,252 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-07-17 16:51:05,689 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-07-17 16:51:06,820 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-07-17 16:51:07,416 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-07-17 16:51:08,010 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-07-17 16:51:08,603 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 193 [2020-07-17 16:51:09,288 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 191 [2020-07-17 16:51:12,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:51:12,855 INFO L93 Difference]: Finished difference Result 8256 states and 9277 transitions. [2020-07-17 16:51:12,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-07-17 16:51:12,855 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 655 [2020-07-17 16:51:12,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:51:12,859 INFO L225 Difference]: With dead ends: 8256 [2020-07-17 16:51:12,859 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 16:51:12,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 179 SyntacticMatches, 8 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2788 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=1305, Invalid=7437, Unknown=0, NotChecked=0, Total=8742 [2020-07-17 16:51:12,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 16:51:12,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 16:51:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 16:51:12,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 16:51:12,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 655 [2020-07-17 16:51:12,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:51:12,878 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 16:51:12,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-17 16:51:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 16:51:12,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 16:51:12,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-17 16:51:12,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 16:51:24,332 WARN L193 SmtUtils]: Spent 11.40 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1219 [2020-07-17 16:51:24,510 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 235 [2020-07-17 16:51:24,759 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 237 [2020-07-17 16:51:25,288 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 230 [2020-07-17 16:51:34,833 WARN L193 SmtUtils]: Spent 7.78 s on a formula simplification. DAG size of input: 1318 DAG size of output: 1051 [2020-07-17 16:51:35,528 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 250 [2020-07-17 16:51:38,397 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-07-17 16:51:38,812 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 248 [2020-07-17 16:51:39,016 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:51:39,207 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 249 [2020-07-17 16:51:39,423 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:51:39,753 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-07-17 16:51:41,466 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 252 [2020-07-17 16:51:42,361 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 255 [2020-07-17 16:51:42,631 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 262 [2020-07-17 16:51:42,822 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 251 [2020-07-17 16:51:43,099 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 262 [2020-07-17 16:51:43,274 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 248 [2020-07-17 16:51:43,499 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 253 [2020-07-17 16:51:46,794 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 244 [2020-07-17 16:51:47,077 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 247 [2020-07-17 16:51:47,722 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 245 [2020-07-17 16:51:48,266 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 249 [2020-07-17 16:51:48,519 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 236 [2020-07-17 16:51:48,813 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 248 [2020-07-17 16:51:49,120 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 238 [2020-07-17 16:51:49,791 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 244 [2020-07-17 16:51:50,026 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 235 [2020-07-17 16:51:50,261 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 247 [2020-07-17 16:51:50,710 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 237 [2020-07-17 16:51:51,272 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 245 [2020-07-17 16:51:51,822 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 249 [2020-07-17 16:51:52,069 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 236 [2020-07-17 16:51:52,376 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 248 [2020-07-17 16:51:52,685 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 238 [2020-07-17 16:52:13,068 WARN L193 SmtUtils]: Spent 10.18 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1219 [2020-07-17 16:52:18,172 WARN L193 SmtUtils]: Spent 4.76 s on a formula simplification. DAG size of input: 1093 DAG size of output: 825 [2020-07-17 16:52:25,779 WARN L193 SmtUtils]: Spent 7.59 s on a formula simplification. DAG size of input: 1318 DAG size of output: 1051 [2020-07-17 16:52:28,142 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:52:28,275 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:52:28,480 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:52:28,612 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:52:38,948 WARN L193 SmtUtils]: Spent 10.22 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1219 [2020-07-17 16:52:56,141 WARN L193 SmtUtils]: Spent 12.21 s on a formula simplification. DAG size of input: 1653 DAG size of output: 1328 [2020-07-17 16:52:59,944 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:00,206 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:00,333 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:00,466 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:00,955 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:01,086 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:01,568 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:01,695 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:02,304 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:02,446 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:02,804 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:02,975 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:05,633 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-07-17 16:53:05,752 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-07-17 16:53:06,281 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-07-17 16:53:06,400 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-07-17 16:53:06,631 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 248 [2020-07-17 16:53:06,764 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 248 [2020-07-17 16:53:06,974 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:07,127 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 249 [2020-07-17 16:53:07,264 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 249 [2020-07-17 16:53:07,392 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:07,789 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:07,922 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:08,232 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:08,362 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:08,639 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-07-17 16:53:08,812 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-07-17 16:53:08,940 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:09,071 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:09,535 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:09,663 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:10,176 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:10,323 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:53:10,820 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:10,949 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:53:23,728 WARN L193 SmtUtils]: Spent 6.81 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1002 [2020-07-17 16:53:35,887 WARN L193 SmtUtils]: Spent 10.20 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1219 [2020-07-17 16:53:46,093 WARN L193 SmtUtils]: Spent 10.20 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1219 [2020-07-17 16:53:58,784 WARN L193 SmtUtils]: Spent 4.73 s on a formula simplification. DAG size of input: 1093 DAG size of output: 825 [2020-07-17 16:54:03,537 WARN L193 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 981 DAG size of output: 731 [2020-07-17 16:54:08,260 WARN L193 SmtUtils]: Spent 4.72 s on a formula simplification. DAG size of input: 1093 DAG size of output: 825 [2020-07-17 16:54:16,568 WARN L193 SmtUtils]: Spent 7.63 s on a formula simplification. DAG size of input: 1318 DAG size of output: 1051 [2020-07-17 16:54:24,259 WARN L193 SmtUtils]: Spent 7.69 s on a formula simplification. DAG size of input: 1318 DAG size of output: 1051 [2020-07-17 16:54:24,649 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 249 [2020-07-17 16:54:25,189 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 251 [2020-07-17 16:54:26,693 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:26,889 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:28,161 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:28,358 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:28,646 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:28,775 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:28,899 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:29,816 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 253 [2020-07-17 16:54:29,983 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 258 [2020-07-17 16:54:31,056 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 253 [2020-07-17 16:54:31,306 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 258 [2020-07-17 16:54:38,825 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 249 [2020-07-17 16:54:39,221 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 252 [2020-07-17 16:54:39,487 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 254 [2020-07-17 16:54:39,733 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 254 [2020-07-17 16:54:39,978 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 257 [2020-07-17 16:54:40,345 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 250 [2020-07-17 16:54:41,045 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 238 [2020-07-17 16:54:45,977 WARN L193 SmtUtils]: Spent 4.84 s on a formula simplification. DAG size of input: 1093 DAG size of output: 825 [2020-07-17 16:54:50,963 WARN L193 SmtUtils]: Spent 4.79 s on a formula simplification. DAG size of input: 1093 DAG size of output: 825 [2020-07-17 16:54:55,836 WARN L193 SmtUtils]: Spent 4.86 s on a formula simplification. DAG size of input: 1093 DAG size of output: 825 [2020-07-17 16:54:56,919 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:57,115 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:58,558 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:58,754 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:58,877 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 238 [2020-07-17 16:54:59,093 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:59,220 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:59,348 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:54:59,578 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:54:59,753 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:55:00,004 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:55:00,138 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:55:00,570 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 248 [2020-07-17 16:55:00,922 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 248 [2020-07-17 16:55:01,060 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 248 [2020-07-17 16:55:01,403 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 248 [2020-07-17 16:55:01,745 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 250 [2020-07-17 16:55:01,874 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 250 [2020-07-17 16:55:02,066 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 244 [2020-07-17 16:55:04,854 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-07-17 16:55:05,332 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-07-17 16:55:05,842 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 248 [2020-07-17 16:55:06,061 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:55:06,269 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 249 [2020-07-17 16:55:06,542 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:55:17,292 WARN L193 SmtUtils]: Spent 10.39 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1219 [2020-07-17 16:55:29,884 WARN L193 SmtUtils]: Spent 10.21 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1219 [2020-07-17 16:55:41,972 WARN L193 SmtUtils]: Spent 10.22 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1219 [2020-07-17 16:55:52,172 WARN L193 SmtUtils]: Spent 10.18 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1219 [2020-07-17 16:55:53,377 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-07-17 16:55:53,666 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 248 [2020-07-17 16:55:53,873 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 236 [2020-07-17 16:55:54,061 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 249 [2020-07-17 16:55:54,290 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 238 [2020-07-17 16:55:54,621 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 246 [2020-07-17 16:55:56,641 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 252 [2020-07-17 16:55:57,049 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 255 [2020-07-17 16:55:57,322 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 262 [2020-07-17 16:55:57,519 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 251 [2020-07-17 16:55:57,798 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 262 [2020-07-17 16:55:57,970 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 248 [2020-07-17 16:55:58,191 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 253 [2020-07-17 16:56:28,647 WARN L193 SmtUtils]: Spent 29.63 s on a formula simplification. DAG size of input: 1045 DAG size of output: 65 [2020-07-17 16:56:32,241 WARN L193 SmtUtils]: Spent 3.58 s on a formula simplification. DAG size of input: 264 DAG size of output: 43 [2020-07-17 16:56:34,676 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 189 DAG size of output: 41 [2020-07-17 16:56:35,491 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 1 [2020-07-17 16:56:36,927 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 249 DAG size of output: 47 [2020-07-17 16:56:37,133 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 27 [2020-07-17 16:56:37,344 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 27 [2020-07-17 16:57:00,536 WARN L193 SmtUtils]: Spent 23.18 s on a formula simplification. DAG size of input: 905 DAG size of output: 55 [2020-07-17 16:57:03,633 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 268 DAG size of output: 48 [2020-07-17 16:57:04,148 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-07-17 16:57:05,277 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 209 DAG size of output: 46 [2020-07-17 16:57:08,017 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 260 DAG size of output: 41 [2020-07-17 16:57:08,265 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 1 [2020-07-17 16:57:10,270 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 405 DAG size of output: 1 [2020-07-17 16:57:10,766 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-07-17 16:57:11,421 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 28 [2020-07-17 16:57:12,388 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 25 [2020-07-17 16:57:17,903 WARN L193 SmtUtils]: Spent 5.49 s on a formula simplification. DAG size of input: 458 DAG size of output: 58 [2020-07-17 16:57:20,027 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 251 DAG size of output: 38 [2020-07-17 16:57:20,205 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 23 [2020-07-17 16:57:22,987 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 260 DAG size of output: 41 [2020-07-17 16:57:25,977 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 209 DAG size of output: 51 [2020-07-17 16:57:26,231 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 27 [2020-07-17 16:57:30,453 WARN L193 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 388 DAG size of output: 68 [2020-07-17 16:57:31,803 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 267 DAG size of output: 47 [2020-07-17 16:57:35,910 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 388 DAG size of output: 68 [2020-07-17 16:57:36,072 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 1 [2020-07-17 16:57:38,626 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 192 DAG size of output: 46 [2020-07-17 16:57:41,043 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 264 DAG size of output: 46 [2020-07-17 16:57:41,906 WARN L193 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 1 [2020-07-17 16:57:43,029 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 209 DAG size of output: 46 [2020-07-17 16:57:44,956 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 247 DAG size of output: 72 [2020-07-17 16:57:47,115 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 280 DAG size of output: 77 [2020-07-17 16:57:48,557 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 234 DAG size of output: 47 [2020-07-17 16:57:48,717 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 1 [2020-07-17 16:57:50,967 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 217 DAG size of output: 46 [2020-07-17 16:57:53,251 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 217 DAG size of output: 46 [2020-07-17 16:57:55,755 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 223 DAG size of output: 45 [2020-07-17 16:57:55,983 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 19 [2020-07-17 16:57:58,038 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 277 DAG size of output: 78 [2020-07-17 16:57:58,512 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 28 [2020-07-17 16:58:01,156 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 192 DAG size of output: 46 [2020-07-17 16:58:02,274 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 154 DAG size of output: 23 [2020-07-17 16:58:02,955 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 32 [2020-07-17 16:58:32,668 WARN L193 SmtUtils]: Spent 29.65 s on a formula simplification. DAG size of input: 1045 DAG size of output: 65 [2020-07-17 16:58:34,070 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 259 DAG size of output: 53 [2020-07-17 16:58:48,468 WARN L193 SmtUtils]: Spent 14.39 s on a formula simplification. DAG size of input: 694 DAG size of output: 52 [2020-07-17 16:58:48,696 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 22 [2020-07-17 16:59:12,086 WARN L193 SmtUtils]: Spent 23.38 s on a formula simplification. DAG size of input: 905 DAG size of output: 55 [2020-07-17 16:59:13,289 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 252 DAG size of output: 52 [2020-07-17 16:59:16,021 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 249 DAG size of output: 45 [2020-07-17 16:59:18,700 WARN L193 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 249 DAG size of output: 45 [2020-07-17 16:59:20,648 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 246 DAG size of output: 33 [2020-07-17 16:59:23,163 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 246 DAG size of output: 41 [2020-07-17 16:59:23,670 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-07-17 16:59:24,349 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 30 [2020-07-17 16:59:25,033 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 28 [2020-07-17 16:59:26,916 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 287 DAG size of output: 46 [2020-07-17 16:59:56,774 WARN L193 SmtUtils]: Spent 29.85 s on a formula simplification. DAG size of input: 1045 DAG size of output: 65 [2020-07-17 16:59:58,661 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 244 DAG size of output: 30 [2020-07-17 17:00:00,569 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 244 DAG size of output: 30 [2020-07-17 17:00:00,737 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 1 [2020-07-17 17:00:01,251 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 27 [2020-07-17 17:00:02,123 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 1 [2020-07-17 17:00:04,540 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 223 DAG size of output: 50 [2020-07-17 17:00:06,048 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 234 DAG size of output: 47