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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:35:05,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:35:05,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:35:05,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:35:05,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:35:05,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:35:05,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:35:05,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:35:05,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:35:05,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:35:05,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:35:05,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:35:05,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:35:05,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:35:05,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:35:05,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:35:05,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:35:05,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:35:05,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:35:05,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:35:05,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:35:05,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:35:05,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:35:05,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:35:05,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:35:05,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:35:05,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:35:05,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:35:05,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:35:05,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:35:05,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:35:06,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:35:06,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:35:06,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:35:06,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:35:06,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:35:06,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:35:06,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:35:06,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:35:06,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:35:06,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:35:06,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:35:06,035 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:35:06,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:35:06,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:35:06,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:35:06,037 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:35:06,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:35:06,038 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:35:06,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:35:06,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:35:06,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:35:06,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:35:06,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:35:06,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:35:06,040 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:35:06,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:35:06,040 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:35:06,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:35:06,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:35:06,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:35:06,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:35:06,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:35:06,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:35:06,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:35:06,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:35:06,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:35:06,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:35:06,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:35:06,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:35:06,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:35:06,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:35:06,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:35:06,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:35:06,396 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:35:06,396 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:35:06,397 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product64.cil.c [2019-10-13 19:35:06,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c97f72b0/93c61a58f6b149b78a52f2679d98986c/FLAG32e71ad4a [2019-10-13 19:35:06,946 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:35:06,947 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product64.cil.c [2019-10-13 19:35:06,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c97f72b0/93c61a58f6b149b78a52f2679d98986c/FLAG32e71ad4a [2019-10-13 19:35:07,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c97f72b0/93c61a58f6b149b78a52f2679d98986c [2019-10-13 19:35:07,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:35:07,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:35:07,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:35:07,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:35:07,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:35:07,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:35:07" (1/1) ... [2019-10-13 19:35:07,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d820fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:07, skipping insertion in model container [2019-10-13 19:35:07,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:35:07" (1/1) ... [2019-10-13 19:35:07,346 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:35:07,416 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:35:07,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:35:07,975 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:35:08,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:35:08,133 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:35:08,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08 WrapperNode [2019-10-13 19:35:08,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:35:08,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:35:08,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:35:08,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:35:08,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08" (1/1) ... [2019-10-13 19:35:08,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08" (1/1) ... [2019-10-13 19:35:08,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08" (1/1) ... [2019-10-13 19:35:08,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08" (1/1) ... [2019-10-13 19:35:08,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08" (1/1) ... [2019-10-13 19:35:08,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08" (1/1) ... [2019-10-13 19:35:08,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08" (1/1) ... [2019-10-13 19:35:08,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:35:08,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:35:08,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:35:08,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:35:08,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:35:08,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:35:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:35:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:35:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:35:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:35:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:35:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:35:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:35:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 19:35:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:35:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:35:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:35:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:35:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:35:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:35:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:35:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:35:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:35:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:35:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:35:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:35:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:35:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:35:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:35:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:35:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:35:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:35:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:35:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:35:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:35:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:35:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:35:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 19:35:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 19:35:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:35:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:35:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:35:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:35:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:35:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:35:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:35:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:35:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 19:35:08,331 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:35:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:35:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:35:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:35:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:35:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:35:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:35:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:35:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:35:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:35:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:35:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 19:35:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:35:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:35:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:35:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:35:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:35:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:35:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:35:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:35:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:35:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:35:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:35:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:35:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:35:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:35:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:35:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:35:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:35:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:35:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:35:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:35:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:35:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:35:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:35:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:35:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:35:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:35:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:35:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:35:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:35:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:35:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 19:35:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:35:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:35:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 19:35:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:35:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:35:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:35:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:35:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:35:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 19:35:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:35:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:35:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:35:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:35:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:35:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:35:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:35:09,450 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:35:09,450 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:35:09,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:35:09 BoogieIcfgContainer [2019-10-13 19:35:09,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:35:09,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:35:09,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:35:09,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:35:09,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:35:07" (1/3) ... [2019-10-13 19:35:09,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a5717f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:35:09, skipping insertion in model container [2019-10-13 19:35:09,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:08" (2/3) ... [2019-10-13 19:35:09,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a5717f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:35:09, skipping insertion in model container [2019-10-13 19:35:09,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:35:09" (3/3) ... [2019-10-13 19:35:09,462 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product64.cil.c [2019-10-13 19:35:09,473 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:35:09,482 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:35:09,494 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:35:09,527 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:35:09,528 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:35:09,528 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:35:09,528 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:35:09,528 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:35:09,529 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:35:09,529 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:35:09,530 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:35:09,558 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states. [2019-10-13 19:35:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 19:35:09,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:09,573 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:35:09,576 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:09,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1495966497, now seen corresponding path program 1 times [2019-10-13 19:35:09,591 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:09,591 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337423440] [2019-10-13 19:35:09,591 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:09,592 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:09,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:10,279 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:10,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337423440] [2019-10-13 19:35:10,399 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:10,399 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:35:10,400 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162870730] [2019-10-13 19:35:10,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:35:10,407 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:10,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:35:10,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:35:10,429 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 3 states. [2019-10-13 19:35:11,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:11,886 INFO L93 Difference]: Finished difference Result 368 states and 480 transitions. [2019-10-13 19:35:11,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:35:11,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-13 19:35:11,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:11,904 INFO L225 Difference]: With dead ends: 368 [2019-10-13 19:35:11,904 INFO L226 Difference]: Without dead ends: 199 [2019-10-13 19:35:11,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:35:11,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2019-10-13 19:35:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 160. [2019-10-13 19:35:12,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-10-13 19:35:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2019-10-13 19:35:12,025 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 46 [2019-10-13 19:35:12,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:12,026 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2019-10-13 19:35:12,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:35:12,026 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2019-10-13 19:35:12,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 19:35:12,030 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:12,030 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:35:12,030 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:12,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:12,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1681348133, now seen corresponding path program 1 times [2019-10-13 19:35:12,031 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:12,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940290808] [2019-10-13 19:35:12,031 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:12,032 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:12,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,400 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:12,441 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940290808] [2019-10-13 19:35:12,441 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:12,441 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:35:12,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465543542] [2019-10-13 19:35:12,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:35:12,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:12,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:35:12,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:35:12,444 INFO L87 Difference]: Start difference. First operand 160 states and 191 transitions. Second operand 4 states. [2019-10-13 19:35:12,932 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:14,080 INFO L93 Difference]: Finished difference Result 291 states and 359 transitions. [2019-10-13 19:35:14,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:35:14,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-10-13 19:35:14,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:14,085 INFO L225 Difference]: With dead ends: 291 [2019-10-13 19:35:14,085 INFO L226 Difference]: Without dead ends: 183 [2019-10-13 19:35:14,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:35:14,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-10-13 19:35:14,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 151. [2019-10-13 19:35:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-10-13 19:35:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 179 transitions. [2019-10-13 19:35:14,134 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 179 transitions. Word has length 47 [2019-10-13 19:35:14,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:14,135 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 179 transitions. [2019-10-13 19:35:14,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:35:14,135 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 179 transitions. [2019-10-13 19:35:14,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 19:35:14,137 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:14,137 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:35:14,138 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:14,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:14,138 INFO L82 PathProgramCache]: Analyzing trace with hash 833077427, now seen corresponding path program 1 times [2019-10-13 19:35:14,138 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:14,139 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404704267] [2019-10-13 19:35:14,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:14,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:14,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:14,514 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:14,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:14,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404704267] [2019-10-13 19:35:14,622 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:14,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:35:14,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058522931] [2019-10-13 19:35:14,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:35:14,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:14,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:35:14,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:35:14,624 INFO L87 Difference]: Start difference. First operand 151 states and 179 transitions. Second operand 8 states. [2019-10-13 19:35:15,119 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:15,485 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:35:15,832 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:16,100 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:16,916 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:19,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:19,563 INFO L93 Difference]: Finished difference Result 516 states and 644 transitions. [2019-10-13 19:35:19,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:35:19,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2019-10-13 19:35:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:19,568 INFO L225 Difference]: With dead ends: 516 [2019-10-13 19:35:19,568 INFO L226 Difference]: Without dead ends: 389 [2019-10-13 19:35:19,569 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:35:19,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-13 19:35:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 316. [2019-10-13 19:35:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2019-10-13 19:35:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 386 transitions. [2019-10-13 19:35:19,656 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 386 transitions. Word has length 52 [2019-10-13 19:35:19,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:19,656 INFO L462 AbstractCegarLoop]: Abstraction has 316 states and 386 transitions. [2019-10-13 19:35:19,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:35:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 386 transitions. [2019-10-13 19:35:19,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 19:35:19,660 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:19,660 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] [2019-10-13 19:35:19,660 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:19,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:19,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1106348516, now seen corresponding path program 1 times [2019-10-13 19:35:19,661 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:19,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687053783] [2019-10-13 19:35:19,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:19,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:19,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:19,994 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:20,076 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687053783] [2019-10-13 19:35:20,076 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:20,076 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:35:20,076 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209989742] [2019-10-13 19:35:20,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:35:20,077 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:20,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:35:20,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:35:20,078 INFO L87 Difference]: Start difference. First operand 316 states and 386 transitions. Second operand 8 states. [2019-10-13 19:35:20,671 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:21,711 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:22,194 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:22,528 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:22,804 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:23,521 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:24,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:24,906 INFO L93 Difference]: Finished difference Result 1025 states and 1329 transitions. [2019-10-13 19:35:24,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:35:24,907 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2019-10-13 19:35:24,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:24,913 INFO L225 Difference]: With dead ends: 1025 [2019-10-13 19:35:24,914 INFO L226 Difference]: Without dead ends: 733 [2019-10-13 19:35:24,915 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:35:24,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2019-10-13 19:35:25,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 587. [2019-10-13 19:35:25,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-10-13 19:35:25,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 722 transitions. [2019-10-13 19:35:25,071 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 722 transitions. Word has length 57 [2019-10-13 19:35:25,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:25,071 INFO L462 AbstractCegarLoop]: Abstraction has 587 states and 722 transitions. [2019-10-13 19:35:25,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:35:25,072 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 722 transitions. [2019-10-13 19:35:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-13 19:35:25,075 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:25,076 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] [2019-10-13 19:35:25,076 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:25,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:25,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1073775336, now seen corresponding path program 1 times [2019-10-13 19:35:25,077 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:25,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971922746] [2019-10-13 19:35:25,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:25,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:25,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,414 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:25,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971922746] [2019-10-13 19:35:25,523 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:25,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:35:25,524 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072461330] [2019-10-13 19:35:25,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:35:25,526 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:25,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:35:25,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:35:25,528 INFO L87 Difference]: Start difference. First operand 587 states and 722 transitions. Second operand 9 states. [2019-10-13 19:35:26,208 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:27,262 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:27,588 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:27,879 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:28,761 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:29,115 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:30,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:30,496 INFO L93 Difference]: Finished difference Result 1637 states and 2184 transitions. [2019-10-13 19:35:30,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:35:30,496 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2019-10-13 19:35:30,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:30,504 INFO L225 Difference]: With dead ends: 1637 [2019-10-13 19:35:30,504 INFO L226 Difference]: Without dead ends: 1074 [2019-10-13 19:35:30,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:35:30,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2019-10-13 19:35:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 887. [2019-10-13 19:35:30,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2019-10-13 19:35:30,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1087 transitions. [2019-10-13 19:35:30,691 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1087 transitions. Word has length 61 [2019-10-13 19:35:30,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:30,692 INFO L462 AbstractCegarLoop]: Abstraction has 887 states and 1087 transitions. [2019-10-13 19:35:30,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:35:30,692 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1087 transitions. [2019-10-13 19:35:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-13 19:35:30,695 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:30,696 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:35:30,696 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:30,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:30,696 INFO L82 PathProgramCache]: Analyzing trace with hash 2112269386, now seen corresponding path program 1 times [2019-10-13 19:35:30,697 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:30,697 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499831101] [2019-10-13 19:35:30,697 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:30,697 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:30,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:30,977 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:31,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:31,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499831101] [2019-10-13 19:35:31,145 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:31,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:35:31,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679690388] [2019-10-13 19:35:31,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:35:31,146 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:31,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:35:31,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:35:31,147 INFO L87 Difference]: Start difference. First operand 887 states and 1087 transitions. Second operand 9 states. [2019-10-13 19:35:32,621 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:32,916 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:35:33,216 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:33,519 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:34,969 INFO L93 Difference]: Finished difference Result 2021 states and 2716 transitions. [2019-10-13 19:35:34,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:35:34,970 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 104 [2019-10-13 19:35:34,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:34,978 INFO L225 Difference]: With dead ends: 2021 [2019-10-13 19:35:34,978 INFO L226 Difference]: Without dead ends: 1158 [2019-10-13 19:35:34,981 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:35:34,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-10-13 19:35:35,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 913. [2019-10-13 19:35:35,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-10-13 19:35:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1115 transitions. [2019-10-13 19:35:35,153 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1115 transitions. Word has length 104 [2019-10-13 19:35:35,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:35,154 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1115 transitions. [2019-10-13 19:35:35,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:35:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1115 transitions. [2019-10-13 19:35:35,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-13 19:35:35,158 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:35,159 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:35:35,159 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:35,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:35,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1759181004, now seen corresponding path program 1 times [2019-10-13 19:35:35,160 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:35,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328692597] [2019-10-13 19:35:35,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:35,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:35,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,466 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:35,626 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328692597] [2019-10-13 19:35:35,627 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:35,627 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:35:35,627 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35414509] [2019-10-13 19:35:35,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:35:35,628 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:35,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:35:35,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:35:35,630 INFO L87 Difference]: Start difference. First operand 913 states and 1115 transitions. Second operand 11 states. [2019-10-13 19:35:36,401 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:36,673 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:36,937 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:37,872 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:38,176 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:38,468 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:40,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:40,361 INFO L93 Difference]: Finished difference Result 2067 states and 2764 transitions. [2019-10-13 19:35:40,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:35:40,362 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 104 [2019-10-13 19:35:40,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:40,374 INFO L225 Difference]: With dead ends: 2067 [2019-10-13 19:35:40,375 INFO L226 Difference]: Without dead ends: 1178 [2019-10-13 19:35:40,387 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:35:40,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2019-10-13 19:35:40,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 929. [2019-10-13 19:35:40,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2019-10-13 19:35:40,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1131 transitions. [2019-10-13 19:35:40,578 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1131 transitions. Word has length 104 [2019-10-13 19:35:40,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:40,579 INFO L462 AbstractCegarLoop]: Abstraction has 929 states and 1131 transitions. [2019-10-13 19:35:40,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:35:40,579 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1131 transitions. [2019-10-13 19:35:40,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-13 19:35:40,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:40,582 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:35:40,582 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:40,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:40,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1402595699, now seen corresponding path program 1 times [2019-10-13 19:35:40,586 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:40,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149270294] [2019-10-13 19:35:40,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:40,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:40,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:40,923 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:41,163 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149270294] [2019-10-13 19:35:41,164 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:41,164 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:35:41,164 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483562314] [2019-10-13 19:35:41,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:35:41,165 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:41,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:35:41,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:35:41,166 INFO L87 Difference]: Start difference. First operand 929 states and 1131 transitions. Second operand 7 states. [2019-10-13 19:35:41,712 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:42,258 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186