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_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:33:45,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:33:45,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:33:45,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:33:45,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:33:45,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:33:45,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:33:45,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:33:45,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:33:45,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:33:45,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:33:45,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:33:45,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:33:45,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:33:45,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:33:45,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:33:45,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:33:45,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:33:45,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:33:45,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:33:45,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:33:45,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:33:45,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:33:45,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:33:45,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:33:45,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:33:45,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:33:45,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:33:45,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:33:45,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:33:45,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:33:45,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:33:45,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:33:45,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:33:45,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:33:45,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:33:45,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:33:45,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:33:45,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:33:45,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:33:45,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:33:45,106 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 [2019-10-14 23:33:45,121 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:33:45,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:33:45,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:33:45,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:33:45,122 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:33:45,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:33:45,123 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:33:45,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:33:45,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:33:45,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:33:45,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:33:45,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:33:45,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:33:45,124 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:33:45,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:33:45,125 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:33:45,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:33:45,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:33:45,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:33:45,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:33:45,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:33:45,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:33:45,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:33:45,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:33:45,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:33:45,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:33:45,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:33:45,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:33:45,127 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:33:45,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:33:45,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:33:45,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:33:45,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:33:45,454 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:33:45,455 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2019-10-14 23:33:45,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7470efe2/b95e6b69c39c4401b4930328f3a4dbca/FLAG185e956fc [2019-10-14 23:33:46,064 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:33:46,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2019-10-14 23:33:46,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7470efe2/b95e6b69c39c4401b4930328f3a4dbca/FLAG185e956fc [2019-10-14 23:33:46,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7470efe2/b95e6b69c39c4401b4930328f3a4dbca [2019-10-14 23:33:46,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:33:46,368 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:33:46,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:33:46,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:33:46,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:33:46,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:33:46" (1/1) ... [2019-10-14 23:33:46,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11039f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:46, skipping insertion in model container [2019-10-14 23:33:46,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:33:46" (1/1) ... [2019-10-14 23:33:46,386 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:33:46,449 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:33:46,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:33:46,971 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:33:47,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:33:47,092 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:33:47,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47 WrapperNode [2019-10-14 23:33:47,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:33:47,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:33:47,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:33:47,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:33:47,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47" (1/1) ... [2019-10-14 23:33:47,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47" (1/1) ... [2019-10-14 23:33:47,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47" (1/1) ... [2019-10-14 23:33:47,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47" (1/1) ... [2019-10-14 23:33:47,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47" (1/1) ... [2019-10-14 23:33:47,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47" (1/1) ... [2019-10-14 23:33:47,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47" (1/1) ... [2019-10-14 23:33:47,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:33:47,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:33:47,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:33:47,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:33:47,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47" (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 [2019-10-14 23:33:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:33:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:33:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:33:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:33:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:33:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:33:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:33:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:33:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:33:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:33:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:33:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:33:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:33:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:33:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:33:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:33:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:33:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:33:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:33:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:33:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:33:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:33:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:33:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:33:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:33:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:33:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:33:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:33:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:33:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:33:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-14 23:33:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:33:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-14 23:33:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:33:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:33:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:33:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:33:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:33:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:33:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:33:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:33:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:33:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:33:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:33:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:33:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:33:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:33:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:33:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:33:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:33:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:33:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:33:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:33:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:33:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:33:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:33:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:33:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:33:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:33:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:33:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:33:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:33:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:33:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:33:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:33:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:33:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:33:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:33:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:33:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:33:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:33:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:33:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:33:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:33:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:33:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:33:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:33:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:33:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:33:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:33:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:33:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:33:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:33:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:33:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:33:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:33:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-14 23:33:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:33:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-14 23:33:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:33:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:33:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:33:48,332 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:33:48,332 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:33:48,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:33:48 BoogieIcfgContainer [2019-10-14 23:33:48,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:33:48,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:33:48,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:33:48,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:33:48,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:33:46" (1/3) ... [2019-10-14 23:33:48,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad15b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:33:48, skipping insertion in model container [2019-10-14 23:33:48,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:47" (2/3) ... [2019-10-14 23:33:48,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad15b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:33:48, skipping insertion in model container [2019-10-14 23:33:48,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:33:48" (3/3) ... [2019-10-14 23:33:48,342 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2019-10-14 23:33:48,351 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:33:48,359 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:33:48,370 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:33:48,396 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:33:48,396 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:33:48,396 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:33:48,396 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:33:48,397 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:33:48,397 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:33:48,397 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:33:48,397 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:33:48,419 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2019-10-14 23:33:48,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-14 23:33:48,428 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:33:48,429 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] [2019-10-14 23:33:48,431 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:33:48,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:33:48,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1763081390, now seen corresponding path program 1 times [2019-10-14 23:33:48,446 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:33:48,446 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546022538] [2019-10-14 23:33:48,446 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:48,447 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:48,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:33:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:49,163 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:33:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:33:49,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546022538] [2019-10-14 23:33:49,244 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:33:49,247 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:33:49,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669344809] [2019-10-14 23:33:49,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:33:49,256 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:33:49,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:33:49,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:33:49,283 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 3 states. [2019-10-14 23:33:50,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:33:50,547 INFO L93 Difference]: Finished difference Result 303 states and 398 transitions. [2019-10-14 23:33:50,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:33:50,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-14 23:33:50,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:33:50,566 INFO L225 Difference]: With dead ends: 303 [2019-10-14 23:33:50,566 INFO L226 Difference]: Without dead ends: 164 [2019-10-14 23:33:50,571 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 [2019-10-14 23:33:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-10-14 23:33:50,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 130. [2019-10-14 23:33:50,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-14 23:33:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2019-10-14 23:33:50,661 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 46 [2019-10-14 23:33:50,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:33:50,662 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2019-10-14 23:33:50,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:33:50,662 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2019-10-14 23:33:50,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-14 23:33:50,665 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:33:50,665 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] [2019-10-14 23:33:50,666 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:33:50,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:33:50,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1948835968, now seen corresponding path program 1 times [2019-10-14 23:33:50,667 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:33:50,667 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057917336] [2019-10-14 23:33:50,667 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:50,667 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:50,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:33:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:51,019 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:33:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:51,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:33:51,054 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057917336] [2019-10-14 23:33:51,054 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:33:51,054 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:33:51,055 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771221346] [2019-10-14 23:33:51,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:33:51,057 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:33:51,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:33:51,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:33:51,058 INFO L87 Difference]: Start difference. First operand 130 states and 154 transitions. Second operand 4 states. [2019-10-14 23:33:51,538 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:33:52,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:33:52,460 INFO L93 Difference]: Finished difference Result 236 states and 289 transitions. [2019-10-14 23:33:52,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:33:52,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-10-14 23:33:52,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:33:52,464 INFO L225 Difference]: With dead ends: 236 [2019-10-14 23:33:52,465 INFO L226 Difference]: Without dead ends: 148 [2019-10-14 23:33:52,467 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 [2019-10-14 23:33:52,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-10-14 23:33:52,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2019-10-14 23:33:52,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-14 23:33:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2019-10-14 23:33:52,505 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 47 [2019-10-14 23:33:52,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:33:52,506 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2019-10-14 23:33:52,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:33:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2019-10-14 23:33:52,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-14 23:33:52,508 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:33:52,509 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] [2019-10-14 23:33:52,509 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:33:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:33:52,509 INFO L82 PathProgramCache]: Analyzing trace with hash -970175768, now seen corresponding path program 1 times [2019-10-14 23:33:52,510 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:33:52,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838994040] [2019-10-14 23:33:52,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:52,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:52,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:33:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:52,876 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:33:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:33:52,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838994040] [2019-10-14 23:33:52,969 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:33:52,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:33:52,969 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43765303] [2019-10-14 23:33:52,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:33:52,970 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:33:52,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:33:52,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:33:52,971 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 8 states. [2019-10-14 23:33:53,654 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:33:54,026 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:33:54,306 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:33:54,572 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:33:55,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:33:55,951 INFO L93 Difference]: Finished difference Result 245 states and 303 transitions. [2019-10-14 23:33:55,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:33:55,951 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2019-10-14 23:33:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:33:55,953 INFO L225 Difference]: With dead ends: 245 [2019-10-14 23:33:55,953 INFO L226 Difference]: Without dead ends: 148 [2019-10-14 23:33:55,955 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:33:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-10-14 23:33:55,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2019-10-14 23:33:55,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-14 23:33:55,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2019-10-14 23:33:55,989 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 51 [2019-10-14 23:33:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:33:55,990 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2019-10-14 23:33:55,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:33:55,990 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2019-10-14 23:33:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-14 23:33:55,992 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:33:55,992 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] [2019-10-14 23:33:55,992 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:33:55,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:33:55,993 INFO L82 PathProgramCache]: Analyzing trace with hash 137025886, now seen corresponding path program 1 times [2019-10-14 23:33:55,993 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:33:55,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202432611] [2019-10-14 23:33:55,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:55,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:55,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:33:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,286 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:33:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:33:56,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202432611] [2019-10-14 23:33:56,385 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:33:56,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:33:56,385 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052326380] [2019-10-14 23:33:56,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:33:56,386 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:33:56,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:33:56,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:33:56,387 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 6 states. [2019-10-14 23:33:56,791 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:33:57,950 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:33:58,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:33:58,666 INFO L93 Difference]: Finished difference Result 342 states and 424 transitions. [2019-10-14 23:33:58,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:33:58,667 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-10-14 23:33:58,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:33:58,671 INFO L225 Difference]: With dead ends: 342 [2019-10-14 23:33:58,671 INFO L226 Difference]: Without dead ends: 245 [2019-10-14 23:33:58,675 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:33:58,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2019-10-14 23:33:58,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 204. [2019-10-14 23:33:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2019-10-14 23:33:58,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 233 transitions. [2019-10-14 23:33:58,730 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 233 transitions. Word has length 64 [2019-10-14 23:33:58,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:33:58,731 INFO L462 AbstractCegarLoop]: Abstraction has 204 states and 233 transitions. [2019-10-14 23:33:58,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:33:58,731 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 233 transitions. [2019-10-14 23:33:58,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-14 23:33:58,733 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:33:58,733 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] [2019-10-14 23:33:58,734 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:33:58,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:33:58,734 INFO L82 PathProgramCache]: Analyzing trace with hash -274572639, now seen corresponding path program 1 times [2019-10-14 23:33:58,734 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:33:58,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95182899] [2019-10-14 23:33:58,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:58,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:58,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:33:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,072 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:33:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:33:59,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95182899] [2019-10-14 23:33:59,247 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:33:59,248 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:33:59,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151340654] [2019-10-14 23:33:59,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:33:59,249 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:33:59,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:33:59,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:33:59,251 INFO L87 Difference]: Start difference. First operand 204 states and 233 transitions. Second operand 8 states. [2019-10-14 23:33:59,746 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:00,785 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:01,161 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:01,742 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:01,988 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:02,273 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:03,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:03,292 INFO L93 Difference]: Finished difference Result 607 states and 749 transitions. [2019-10-14 23:34:03,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:34:03,293 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2019-10-14 23:34:03,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:03,298 INFO L225 Difference]: With dead ends: 607 [2019-10-14 23:34:03,298 INFO L226 Difference]: Without dead ends: 427 [2019-10-14 23:34:03,299 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:34:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-10-14 23:34:03,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 363. [2019-10-14 23:34:03,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-14 23:34:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 416 transitions. [2019-10-14 23:34:03,378 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 416 transitions. Word has length 78 [2019-10-14 23:34:03,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:03,378 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 416 transitions. [2019-10-14 23:34:03,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:34:03,378 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 416 transitions. [2019-10-14 23:34:03,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-14 23:34:03,380 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:03,380 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] [2019-10-14 23:34:03,381 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:03,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:03,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1223934493, now seen corresponding path program 1 times [2019-10-14 23:34:03,381 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:03,382 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749877567] [2019-10-14 23:34:03,382 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:03,382 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:03,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,680 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:34:03,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749877567] [2019-10-14 23:34:03,793 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:03,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:34:03,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742552041] [2019-10-14 23:34:03,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:34:03,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:03,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:34:03,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:34:03,795 INFO L87 Difference]: Start difference. First operand 363 states and 416 transitions. Second operand 9 states. [2019-10-14 23:34:04,381 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:05,590 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:05,901 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:06,872 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:07,145 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:07,395 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:07,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:07,719 INFO L93 Difference]: Finished difference Result 466 states and 584 transitions. [2019-10-14 23:34:07,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:34:07,720 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2019-10-14 23:34:07,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:07,725 INFO L225 Difference]: With dead ends: 466 [2019-10-14 23:34:07,725 INFO L226 Difference]: Without dead ends: 463 [2019-10-14 23:34:07,726 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:34:07,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2019-10-14 23:34:07,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 363. [2019-10-14 23:34:07,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-14 23:34:07,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2019-10-14 23:34:07,797 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 82 [2019-10-14 23:34:07,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:07,798 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2019-10-14 23:34:07,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:34:07,798 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2019-10-14 23:34:07,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-14 23:34:07,800 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:07,800 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] [2019-10-14 23:34:07,801 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:07,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:07,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1913348729, now seen corresponding path program 1 times [2019-10-14 23:34:07,801 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:07,801 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883107265] [2019-10-14 23:34:07,802 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:07,802 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:07,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,091 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:08,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883107265] [2019-10-14 23:34:08,247 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:08,247 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:34:08,247 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445701311] [2019-10-14 23:34:08,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:34:08,248 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:08,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:34:08,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:34:08,249 INFO L87 Difference]: Start difference. First operand 363 states and 415 transitions. Second operand 9 states. [2019-10-14 23:34:09,469 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:09,742 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:34:10,031 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:10,299 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:11,409 INFO L93 Difference]: Finished difference Result 810 states and 1008 transitions. [2019-10-14 23:34:11,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:34:11,414 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2019-10-14 23:34:11,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:11,417 INFO L225 Difference]: With dead ends: 810 [2019-10-14 23:34:11,417 INFO L226 Difference]: Without dead ends: 471 [2019-10-14 23:34:11,419 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:34:11,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2019-10-14 23:34:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 373. [2019-10-14 23:34:11,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-14 23:34:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2019-10-14 23:34:11,493 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 98 [2019-10-14 23:34:11,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:11,493 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2019-10-14 23:34:11,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:34:11,494 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2019-10-14 23:34:11,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-14 23:34:11,495 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:11,496 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] [2019-10-14 23:34:11,496 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:11,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:11,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1019862391, now seen corresponding path program 1 times [2019-10-14 23:34:11,497 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:11,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136249401] [2019-10-14 23:34:11,497 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:11,497 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:11,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,761 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:11,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:11,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136249401] [2019-10-14 23:34:11,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:11,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:34:11,916 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857005750] [2019-10-14 23:34:11,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:34:11,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:11,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:34:11,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:34:11,917 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 11 states. [2019-10-14 23:34:12,843 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:13,125 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:13,378 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:14,045 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:14,328 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:14,600 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:15,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:15,906 INFO L93 Difference]: Finished difference Result 830 states and 1030 transitions. [2019-10-14 23:34:15,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:34:15,906 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2019-10-14 23:34:15,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:15,910 INFO L225 Difference]: With dead ends: 830 [2019-10-14 23:34:15,910 INFO L226 Difference]: Without dead ends: 481 [2019-10-14 23:34:15,912 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 [2019-10-14 23:34:15,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2019-10-14 23:34:15,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 381. [2019-10-14 23:34:15,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-14 23:34:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 433 transitions. [2019-10-14 23:34:15,994 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 433 transitions. Word has length 98 [2019-10-14 23:34:15,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:15,994 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 433 transitions. [2019-10-14 23:34:15,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:34:15,994 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 433 transitions. [2019-10-14 23:34:15,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-14 23:34:15,996 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:15,996 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] [2019-10-14 23:34:15,996 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:15,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1027621750, now seen corresponding path program 1 times [2019-10-14 23:34:15,997 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:15,997 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232985542] [2019-10-14 23:34:15,998 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:15,998 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:15,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,293 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:16,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:16,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232985542] [2019-10-14 23:34:16,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:16,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:34:16,450 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934286789] [2019-10-14 23:34:16,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:34:16,451 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:16,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:34:16,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:34:16,451 INFO L87 Difference]: Start difference. First operand 381 states and 433 transitions. Second operand 7 states. [2019-10-14 23:34:16,867 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:17,371 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:19,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:19,509 INFO L93 Difference]: Finished difference Result 1133 states and 1452 transitions. [2019-10-14 23:34:19,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 23:34:19,510 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2019-10-14 23:34:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:19,515 INFO L225 Difference]: With dead ends: 1133 [2019-10-14 23:34:19,516 INFO L226 Difference]: Without dead ends: 776 [2019-10-14 23:34:19,517 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:34:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2019-10-14 23:34:19,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 677. [2019-10-14 23:34:19,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2019-10-14 23:34:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 803 transitions. [2019-10-14 23:34:19,693 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 803 transitions. Word has length 98 [2019-10-14 23:34:19,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:19,694 INFO L462 AbstractCegarLoop]: Abstraction has 677 states and 803 transitions. [2019-10-14 23:34:19,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:34:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 803 transitions. [2019-10-14 23:34:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-14 23:34:19,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:19,697 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] [2019-10-14 23:34:19,698 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:19,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:19,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1865521988, now seen corresponding path program 1 times [2019-10-14 23:34:19,698 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:19,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692755738] [2019-10-14 23:34:19,699 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:19,699 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:19,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:19,994 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:34:20,308 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692755738] [2019-10-14 23:34:20,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552539722] [2019-10-14 23:34:20,309 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 [2019-10-14 23:34:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:20,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-14 23:34:20,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:34:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:34:20,949 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:34:20,950 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2019-10-14 23:34:20,950 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558040168] [2019-10-14 23:34:20,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:34:20,951 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:20,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:34:20,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:34:20,952 INFO L87 Difference]: Start difference. First operand 677 states and 803 transitions. Second operand 8 states. [2019-10-14 23:34:21,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:21,469 INFO L93 Difference]: Finished difference Result 1296 states and 1548 transitions. [2019-10-14 23:34:21,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:34:21,470 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-10-14 23:34:21,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:21,476 INFO L225 Difference]: With dead ends: 1296 [2019-10-14 23:34:21,476 INFO L226 Difference]: Without dead ends: 643 [2019-10-14 23:34:21,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:34:21,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-10-14 23:34:21,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-10-14 23:34:21,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-10-14 23:34:21,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 749 transitions. [2019-10-14 23:34:21,619 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 749 transitions. Word has length 102 [2019-10-14 23:34:21,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:21,619 INFO L462 AbstractCegarLoop]: Abstraction has 643 states and 749 transitions. [2019-10-14 23:34:21,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:34:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 749 transitions. [2019-10-14 23:34:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-14 23:34:21,622 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:21,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:34:21,827 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:34:21,827 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:21,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:21,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1153565628, now seen corresponding path program 1 times [2019-10-14 23:34:21,828 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:21,828 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609175333] [2019-10-14 23:34:21,828 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:21,828 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:21,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,152 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-14 23:34:22,504 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609175333] [2019-10-14 23:34:22,504 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264122277] [2019-10-14 23:34:22,504 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 [2019-10-14 23:34:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-14 23:34:22,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:34:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-14 23:34:22,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:34:22,851 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2019-10-14 23:34:22,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888413512] [2019-10-14 23:34:22,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:34:22,852 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:22,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:34:22,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2019-10-14 23:34:22,853 INFO L87 Difference]: Start difference. First operand 643 states and 749 transitions. Second operand 8 states. [2019-10-14 23:34:23,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:23,190 INFO L93 Difference]: Finished difference Result 1085 states and 1284 transitions. [2019-10-14 23:34:23,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:34:23,191 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2019-10-14 23:34:23,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:23,192 INFO L225 Difference]: With dead ends: 1085 [2019-10-14 23:34:23,192 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:34:23,196 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2019-10-14 23:34:23,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:34:23,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:34:23,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:34:23,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:34:23,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2019-10-14 23:34:23,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:23,198 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:34:23,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:34:23,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:34:23,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:34:23,405 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:34:23,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.