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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:34:44,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:34:44,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:34:44,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:34:44,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:34:44,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:34:44,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:34:44,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:34:44,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:34:44,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:34:44,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:34:44,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:34:44,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:34:44,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:34:44,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:34:44,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:34:44,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:34:44,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:34:44,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:34:44,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:34:44,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:34:44,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:34:44,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:34:44,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:34:44,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:34:44,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:34:44,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:34:44,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:34:44,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:34:44,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:34:44,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:34:44,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:34:44,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:34:44,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:34:44,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:34:44,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:34:44,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:34:44,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:34:44,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:34:44,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:34:44,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:34:44,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:34:44,364 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:34:44,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:34:44,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:34:44,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:34:44,367 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:34:44,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:34:44,367 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:34:44,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:34:44,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:34:44,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:34:44,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:34:44,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:34:44,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:34:44,370 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:34:44,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:34:44,370 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:34:44,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:34:44,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:34:44,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:34:44,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:34:44,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:34:44,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:34:44,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:34:44,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:34:44,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:34:44,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:34:44,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:34:44,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:34:44,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:34:44,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:34:44,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:34:44,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:34:44,662 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:34:44,662 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:34:44,663 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2019-10-13 19:34:44,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e79345d6/950675813e6b4730855cdd71f2e4cab2/FLAG4110cf6b9 [2019-10-13 19:34:45,328 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:34:45,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2019-10-13 19:34:45,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e79345d6/950675813e6b4730855cdd71f2e4cab2/FLAG4110cf6b9 [2019-10-13 19:34:45,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e79345d6/950675813e6b4730855cdd71f2e4cab2 [2019-10-13 19:34:45,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:34:45,637 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:34:45,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:34:45,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:34:45,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:34:45,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:45" (1/1) ... [2019-10-13 19:34:45,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4c3f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:45, skipping insertion in model container [2019-10-13 19:34:45,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:45" (1/1) ... [2019-10-13 19:34:45,660 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:34:45,729 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:34:46,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:34:46,169 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:34:46,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:34:46,304 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:34:46,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46 WrapperNode [2019-10-13 19:34:46,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:34:46,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:34:46,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:34:46,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:34:46,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46" (1/1) ... [2019-10-13 19:34:46,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46" (1/1) ... [2019-10-13 19:34:46,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46" (1/1) ... [2019-10-13 19:34:46,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46" (1/1) ... [2019-10-13 19:34:46,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46" (1/1) ... [2019-10-13 19:34:46,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46" (1/1) ... [2019-10-13 19:34:46,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46" (1/1) ... [2019-10-13 19:34:46,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:34:46,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:34:46,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:34:46,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:34:46,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46" (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 [2019-10-13 19:34:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:34:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:34:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:34:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:34:46,504 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:34:46,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:34:46,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:34:46,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:34:46,504 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 19:34:46,504 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:34:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:34:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:34:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:34:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:34:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:34:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:34:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:34:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:34:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:34:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:34:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:34:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:34:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:34:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:34:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:34:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:34:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 19:34:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:34:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:34:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:34:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:34:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:34:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:34:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:34:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:34:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:34:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:34:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:34:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:34:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:34:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:34:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:34:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:34:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:34:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:34:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:34:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:34:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:34:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:34:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:34:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:34:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:34:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:34:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:34:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:34:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:34:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:34:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 19:34:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:34:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:34:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:34:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:34:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:34:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 19:34:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:34:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:34:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:34:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:34:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:34:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:34:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:34:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:34:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:34:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:34:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:34:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:34:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:34:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:34:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:34:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:34:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:34:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:34:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:34:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:34:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:34:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:34:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:34:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:34:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:34:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:34:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:34:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:34:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:34:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:34:47,716 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:34:47,716 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:34:47,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:47 BoogieIcfgContainer [2019-10-13 19:34:47,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:34:47,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:34:47,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:34:47,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:34:47,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:34:45" (1/3) ... [2019-10-13 19:34:47,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c1eef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:47, skipping insertion in model container [2019-10-13 19:34:47,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:46" (2/3) ... [2019-10-13 19:34:47,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c1eef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:47, skipping insertion in model container [2019-10-13 19:34:47,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:47" (3/3) ... [2019-10-13 19:34:47,727 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2019-10-13 19:34:47,738 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:34:47,747 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:34:47,759 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:34:47,786 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:34:47,786 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:34:47,787 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:34:47,787 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:34:47,787 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:34:47,787 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:34:47,787 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:34:47,788 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:34:47,812 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2019-10-13 19:34:47,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 19:34:47,823 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:34:47,824 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:34:47,826 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:34:47,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:34:47,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1417441614, now seen corresponding path program 1 times [2019-10-13 19:34:47,839 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:34:47,840 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070946484] [2019-10-13 19:34:47,840 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:47,840 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:47,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:34:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:48,561 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:34:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:34:48,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070946484] [2019-10-13 19:34:48,640 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:34:48,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:34:48,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811394660] [2019-10-13 19:34:48,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:34:48,647 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:34:48,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:34:48,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:34:48,665 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 3 states. [2019-10-13 19:34:49,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:34:49,935 INFO L93 Difference]: Finished difference Result 312 states and 408 transitions. [2019-10-13 19:34:49,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:34:49,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-13 19:34:49,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:34:49,961 INFO L225 Difference]: With dead ends: 312 [2019-10-13 19:34:49,962 INFO L226 Difference]: Without dead ends: 169 [2019-10-13 19:34:49,970 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:34:49,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-10-13 19:34:50,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 134. [2019-10-13 19:34:50,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-13 19:34:50,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2019-10-13 19:34:50,074 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2019-10-13 19:34:50,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:34:50,075 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2019-10-13 19:34:50,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:34:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2019-10-13 19:34:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 19:34:50,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:34:50,079 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:34:50,079 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:34:50,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:34:50,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1689810546, now seen corresponding path program 1 times [2019-10-13 19:34:50,080 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:34:50,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376672619] [2019-10-13 19:34:50,081 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:50,081 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:50,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:34:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:50,464 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:34:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:34:50,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376672619] [2019-10-13 19:34:50,500 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:34:50,500 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:34:50,500 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057917336] [2019-10-13 19:34:50,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:34:50,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:34:50,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:34:50,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:34:50,503 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 4 states. [2019-10-13 19:34:50,972 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:34:51,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:34:51,842 INFO L93 Difference]: Finished difference Result 241 states and 295 transitions. [2019-10-13 19:34:51,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:34:51,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-10-13 19:34:51,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:34:51,845 INFO L225 Difference]: With dead ends: 241 [2019-10-13 19:34:51,845 INFO L226 Difference]: Without dead ends: 153 [2019-10-13 19:34:51,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:34:51,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-13 19:34:51,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 125. [2019-10-13 19:34:51,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-13 19:34:51,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2019-10-13 19:34:51,882 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2019-10-13 19:34:51,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:34:51,883 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2019-10-13 19:34:51,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:34:51,883 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2019-10-13 19:34:51,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 19:34:51,885 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:34:51,885 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:34:51,886 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:34:51,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:34:51,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1011180464, now seen corresponding path program 1 times [2019-10-13 19:34:51,886 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:34:51,887 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323827513] [2019-10-13 19:34:51,887 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:51,887 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:51,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:34:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:52,283 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:34:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:34:52,375 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323827513] [2019-10-13 19:34:52,375 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:34:52,375 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:34:52,375 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457019486] [2019-10-13 19:34:52,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:34:52,376 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:34:52,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:34:52,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:34:52,377 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 8 states. [2019-10-13 19:34:52,832 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:34:53,237 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:34:53,520 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:34:53,773 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:34:55,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:34:55,102 INFO L93 Difference]: Finished difference Result 254 states and 313 transitions. [2019-10-13 19:34:55,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:34:55,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2019-10-13 19:34:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:34:55,106 INFO L225 Difference]: With dead ends: 254 [2019-10-13 19:34:55,106 INFO L226 Difference]: Without dead ends: 153 [2019-10-13 19:34:55,108 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:34:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-13 19:34:55,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 125. [2019-10-13 19:34:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-13 19:34:55,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2019-10-13 19:34:55,142 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 52 [2019-10-13 19:34:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:34:55,142 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2019-10-13 19:34:55,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:34:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2019-10-13 19:34:55,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:34:55,145 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:34:55,145 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:34:55,145 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:34:55,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:34:55,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1017334303, now seen corresponding path program 1 times [2019-10-13 19:34:55,146 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:34:55,146 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300049630] [2019-10-13 19:34:55,147 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:55,147 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:55,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:34:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,440 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:34:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:34:55,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300049630] [2019-10-13 19:34:55,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:34:55,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 19:34:55,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267834580] [2019-10-13 19:34:55,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:34:55,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:34:55,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:34:55,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:34:55,565 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand 6 states. [2019-10-13 19:34:55,949 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:34:57,275 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:34:58,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:34:58,062 INFO L93 Difference]: Finished difference Result 356 states and 440 transitions. [2019-10-13 19:34:58,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:34:58,063 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-10-13 19:34:58,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:34:58,067 INFO L225 Difference]: With dead ends: 356 [2019-10-13 19:34:58,067 INFO L226 Difference]: Without dead ends: 255 [2019-10-13 19:34:58,068 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:34:58,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2019-10-13 19:34:58,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 212. [2019-10-13 19:34:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-10-13 19:34:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 241 transitions. [2019-10-13 19:34:58,118 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 241 transitions. Word has length 65 [2019-10-13 19:34:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:34:58,118 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 241 transitions. [2019-10-13 19:34:58,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:34:58,119 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 241 transitions. [2019-10-13 19:34:58,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-13 19:34:58,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:34:58,121 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:34:58,121 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:34:58,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:34:58,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1244154125, now seen corresponding path program 1 times [2019-10-13 19:34:58,122 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:34:58,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183884586] [2019-10-13 19:34:58,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:58,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:58,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:34:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,494 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:34:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:58,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:34:58,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183884586] [2019-10-13 19:34:58,584 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:34:58,584 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:34:58,584 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784605232] [2019-10-13 19:34:58,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:34:58,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:34:58,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:34:58,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:34:58,586 INFO L87 Difference]: Start difference. First operand 212 states and 241 transitions. Second operand 8 states. [2019-10-13 19:34:59,033 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:00,120 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:00,445 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:01,026 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:01,284 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:01,600 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:02,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:02,690 INFO L93 Difference]: Finished difference Result 634 states and 779 transitions. [2019-10-13 19:35:02,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:35:02,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2019-10-13 19:35:02,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:02,696 INFO L225 Difference]: With dead ends: 634 [2019-10-13 19:35:02,696 INFO L226 Difference]: Without dead ends: 446 [2019-10-13 19:35:02,698 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:35:02,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2019-10-13 19:35:02,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 379. [2019-10-13 19:35:02,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-13 19:35:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 432 transitions. [2019-10-13 19:35:02,794 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 432 transitions. Word has length 79 [2019-10-13 19:35:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:02,795 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 432 transitions. [2019-10-13 19:35:02,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:35:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 432 transitions. [2019-10-13 19:35:02,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 19:35:02,797 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:02,797 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:35:02,797 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:02,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:02,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1996569391, now seen corresponding path program 1 times [2019-10-13 19:35:02,798 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:02,798 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34721050] [2019-10-13 19:35:02,798 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:02,798 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:02,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,089 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:03,190 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34721050] [2019-10-13 19:35:03,190 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:03,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:35:03,191 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940456474] [2019-10-13 19:35:03,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:35:03,191 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:03,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:35:03,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:35:03,192 INFO L87 Difference]: Start difference. First operand 379 states and 432 transitions. Second operand 9 states. [2019-10-13 19:35:03,723 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:04,946 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:05,245 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:06,322 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:06,610 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:06,873 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:07,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:07,230 INFO L93 Difference]: Finished difference Result 488 states and 612 transitions. [2019-10-13 19:35:07,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:35:07,230 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2019-10-13 19:35:07,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:07,234 INFO L225 Difference]: With dead ends: 488 [2019-10-13 19:35:07,234 INFO L226 Difference]: Without dead ends: 485 [2019-10-13 19:35:07,235 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:35:07,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-10-13 19:35:07,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 379. [2019-10-13 19:35:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-13 19:35:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 431 transitions. [2019-10-13 19:35:07,308 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 431 transitions. Word has length 83 [2019-10-13 19:35:07,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:07,309 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 431 transitions. [2019-10-13 19:35:07,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:35:07,309 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 431 transitions. [2019-10-13 19:35:07,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-13 19:35:07,311 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:07,311 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:35:07,311 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:07,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:07,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1098775200, now seen corresponding path program 1 times [2019-10-13 19:35:07,312 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:07,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633366072] [2019-10-13 19:35:07,312 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:07,312 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:07,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,556 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:07,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633366072] [2019-10-13 19:35:07,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:07,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:35:07,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719709468] [2019-10-13 19:35:07,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:35:07,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:07,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:35:07,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:35:07,700 INFO L87 Difference]: Start difference. First operand 379 states and 431 transitions. Second operand 9 states. [2019-10-13 19:35:08,847 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:09,103 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:35:09,424 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:09,690 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:10,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:10,844 INFO L93 Difference]: Finished difference Result 848 states and 1052 transitions. [2019-10-13 19:35:10,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:35:10,844 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2019-10-13 19:35:10,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:10,848 INFO L225 Difference]: With dead ends: 848 [2019-10-13 19:35:10,848 INFO L226 Difference]: Without dead ends: 493 [2019-10-13 19:35:10,849 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:35:10,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-13 19:35:10,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 389. [2019-10-13 19:35:10,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-13 19:35:10,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 441 transitions. [2019-10-13 19:35:10,919 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 441 transitions. Word has length 99 [2019-10-13 19:35:10,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:10,919 INFO L462 AbstractCegarLoop]: Abstraction has 389 states and 441 transitions. [2019-10-13 19:35:10,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:35:10,920 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 441 transitions. [2019-10-13 19:35:10,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-13 19:35:10,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:10,922 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:35:10,922 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:10,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:10,922 INFO L82 PathProgramCache]: Analyzing trace with hash -205288862, now seen corresponding path program 1 times [2019-10-13 19:35:10,922 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:10,923 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097502974] [2019-10-13 19:35:10,923 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:10,923 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:10,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,266 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:11,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:11,421 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097502974] [2019-10-13 19:35:11,425 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:11,426 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:35:11,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098498169] [2019-10-13 19:35:11,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:35:11,429 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:11,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:35:11,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:35:11,430 INFO L87 Difference]: Start difference. First operand 389 states and 441 transitions. Second operand 11 states. [2019-10-13 19:35:12,097 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:12,358 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:12,607 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:13,298 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:13,592 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:13,881 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:15,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:15,178 INFO L93 Difference]: Finished difference Result 868 states and 1074 transitions. [2019-10-13 19:35:15,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:35:15,178 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2019-10-13 19:35:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:15,182 INFO L225 Difference]: With dead ends: 868 [2019-10-13 19:35:15,183 INFO L226 Difference]: Without dead ends: 503 [2019-10-13 19:35:15,184 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:35:15,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2019-10-13 19:35:15,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 397. [2019-10-13 19:35:15,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-13 19:35:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 449 transitions. [2019-10-13 19:35:15,279 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 449 transitions. Word has length 99 [2019-10-13 19:35:15,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:15,280 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 449 transitions. [2019-10-13 19:35:15,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:35:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 449 transitions. [2019-10-13 19:35:15,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-13 19:35:15,282 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:15,282 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:35:15,282 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:15,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:15,283 INFO L82 PathProgramCache]: Analyzing trace with hash -213048221, now seen corresponding path program 1 times [2019-10-13 19:35:15,283 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:15,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519381438] [2019-10-13 19:35:15,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:15,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:15,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,556 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:15,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519381438] [2019-10-13 19:35:15,727 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:15,727 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:35:15,727 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409359826] [2019-10-13 19:35:15,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:35:15,728 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:15,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:35:15,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:35:15,728 INFO L87 Difference]: Start difference. First operand 397 states and 449 transitions. Second operand 7 states. [2019-10-13 19:35:16,134 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:16,661 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:19,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:19,147 INFO L93 Difference]: Finished difference Result 1210 states and 1548 transitions. [2019-10-13 19:35:19,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:35:19,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 99 [2019-10-13 19:35:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:19,153 INFO L225 Difference]: With dead ends: 1210 [2019-10-13 19:35:19,154 INFO L226 Difference]: Without dead ends: 837 [2019-10-13 19:35:19,155 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:35:19,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2019-10-13 19:35:19,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 717. [2019-10-13 19:35:19,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-10-13 19:35:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 843 transitions. [2019-10-13 19:35:19,313 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 843 transitions. Word has length 99 [2019-10-13 19:35:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:19,315 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 843 transitions. [2019-10-13 19:35:19,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:35:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 843 transitions. [2019-10-13 19:35:19,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 19:35:19,320 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:19,320 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:35:19,320 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:19,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:19,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1140072279, now seen corresponding path program 1 times [2019-10-13 19:35:19,321 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:19,321 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301385407] [2019-10-13 19:35:19,321 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:19,321 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:19,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,625 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:35:19,904 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301385407] [2019-10-13 19:35:19,904 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040932401] [2019-10-13 19:35:19,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:35:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 19:35:20,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:35:20,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:20,337 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 19:35:20,337 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2019-10-13 19:35:20,337 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331405433] [2019-10-13 19:35:20,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:35:20,339 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:20,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:35:20,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:35:20,340 INFO L87 Difference]: Start difference. First operand 717 states and 843 transitions. Second operand 8 states. [2019-10-13 19:35:20,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:20,751 INFO L93 Difference]: Finished difference Result 1376 states and 1628 transitions. [2019-10-13 19:35:20,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:35:20,751 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-13 19:35:20,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:20,755 INFO L225 Difference]: With dead ends: 1376 [2019-10-13 19:35:20,756 INFO L226 Difference]: Without dead ends: 683 [2019-10-13 19:35:20,758 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:35:20,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2019-10-13 19:35:20,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 683. [2019-10-13 19:35:20,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2019-10-13 19:35:20,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 789 transitions. [2019-10-13 19:35:20,874 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 789 transitions. Word has length 103 [2019-10-13 19:35:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:20,874 INFO L462 AbstractCegarLoop]: Abstraction has 683 states and 789 transitions. [2019-10-13 19:35:20,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:35:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 789 transitions. [2019-10-13 19:35:20,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 19:35:20,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:20,878 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 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] [2019-10-13 19:35:21,083 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:35:21,083 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:21,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:21,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1934361844, now seen corresponding path program 1 times [2019-10-13 19:35:21,084 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:21,084 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619666580] [2019-10-13 19:35:21,085 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:21,085 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:21,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,422 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 19:35:21,705 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619666580] [2019-10-13 19:35:21,706 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086043032] [2019-10-13 19:35:21,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:35:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:21,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 19:35:21,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:35:22,111 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 19:35:22,111 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 19:35:22,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2019-10-13 19:35:22,112 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144947585] [2019-10-13 19:35:22,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:35:22,113 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:22,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:35:22,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2019-10-13 19:35:22,114 INFO L87 Difference]: Start difference. First operand 683 states and 789 transitions. Second operand 8 states. [2019-10-13 19:35:22,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:22,628 INFO L93 Difference]: Finished difference Result 1157 states and 1356 transitions. [2019-10-13 19:35:22,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:35:22,628 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2019-10-13 19:35:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:22,629 INFO L225 Difference]: With dead ends: 1157 [2019-10-13 19:35:22,629 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:35:22,633 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2019-10-13 19:35:22,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:35:22,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:35:22,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:35:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:35:22,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2019-10-13 19:35:22,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:22,634 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:35:22,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:35:22,634 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:35:22,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:35:22,839 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:35:22,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:35:23,766 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 198