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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:18:45,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:18:45,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:18:45,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:18:45,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:18:45,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:18:45,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:18:45,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:18:45,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:18:45,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:18:45,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:18:45,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:18:45,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:18:45,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:18:45,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:18:45,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:18:45,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:18:45,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:18:45,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:18:45,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:18:45,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:18:45,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:18:45,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:18:45,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:18:45,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:18:45,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:18:45,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:18:45,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:18:45,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:18:45,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:18:45,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:18:45,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:18:45,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:18:45,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:18:45,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:18:45,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:18:45,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:18:45,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:18:45,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:18:45,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:18:45,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:18:45,934 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 [2019-10-07 15:18:45,948 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:18:45,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:18:45,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:18:45,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:18:45,950 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:18:45,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:18:45,951 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:18:45,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:18:45,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:18:45,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:18:45,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:18:45,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:18:45,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:18:45,952 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:18:45,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:18:45,953 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:18:45,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:18:45,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:18:45,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:18:45,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:18:45,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:18:45,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:18:45,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:18:45,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:18:45,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:18:45,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:18:45,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:18:45,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:18:45,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:18:46,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:18:46,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:18:46,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:18:46,288 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:18:46,288 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:18:46,289 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2019-10-07 15:18:46,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5331dc6e1/2b14e7f9695b4ecbb33aa78bd280173f/FLAG58f9601cf [2019-10-07 15:18:46,914 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:18:46,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2019-10-07 15:18:46,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5331dc6e1/2b14e7f9695b4ecbb33aa78bd280173f/FLAG58f9601cf [2019-10-07 15:18:47,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5331dc6e1/2b14e7f9695b4ecbb33aa78bd280173f [2019-10-07 15:18:47,230 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:18:47,231 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:18:47,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:18:47,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:18:47,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:18:47,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:18:47" (1/1) ... [2019-10-07 15:18:47,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240d376e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:47, skipping insertion in model container [2019-10-07 15:18:47,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:18:47" (1/1) ... [2019-10-07 15:18:47,251 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:18:47,292 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:18:47,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:18:47,880 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:18:48,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:18:48,051 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:18:48,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48 WrapperNode [2019-10-07 15:18:48,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:18:48,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:18:48,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:18:48,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:18:48,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48" (1/1) ... [2019-10-07 15:18:48,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48" (1/1) ... [2019-10-07 15:18:48,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48" (1/1) ... [2019-10-07 15:18:48,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48" (1/1) ... [2019-10-07 15:18:48,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48" (1/1) ... [2019-10-07 15:18:48,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48" (1/1) ... [2019-10-07 15:18:48,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48" (1/1) ... [2019-10-07 15:18:48,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:18:48,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:18:48,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:18:48,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:18:48,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48" (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 [2019-10-07 15:18:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:18:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:18:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:18:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:18:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-07 15:18:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:18:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:18:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:18:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:18:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:18:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:18:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:18:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:18:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:18:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:18:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:18:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:18:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:18:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:18:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:18:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:18:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:18:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:18:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:18:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:18:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:18:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:18:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:18:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:18:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:18:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:18:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:18:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:18:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:18:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:18:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:18:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:18:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:18:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:18:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:18:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:18:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:18:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:18:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:18:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:18:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:18:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:18:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:18:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:18:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:18:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-07 15:18:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:18:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:18:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:18:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:18:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:18:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:18:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:18:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:18:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:18:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:18:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:18:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:18:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:18:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:18:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:18:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:18:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:18:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:18:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:18:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:18:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:18:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:18:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:18:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:18:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:18:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:18:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:18:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:18:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:18:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:18:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:18:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:18:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:18:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:18:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:18:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:18:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:18:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:18:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:18:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:18:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:18:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:18:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:18:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:18:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:18:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:18:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:18:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:18:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:18:49,871 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:18:49,871 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:18:49,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:18:49 BoogieIcfgContainer [2019-10-07 15:18:49,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:18:49,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:18:49,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:18:49,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:18:49,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:18:47" (1/3) ... [2019-10-07 15:18:49,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3681a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:18:49, skipping insertion in model container [2019-10-07 15:18:49,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:48" (2/3) ... [2019-10-07 15:18:49,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3681a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:18:49, skipping insertion in model container [2019-10-07 15:18:49,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:18:49" (3/3) ... [2019-10-07 15:18:49,882 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2019-10-07 15:18:49,893 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:18:49,902 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:18:49,914 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:18:49,947 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:18:49,948 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:18:49,948 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:18:49,948 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:18:49,948 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:18:49,948 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:18:49,949 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:18:49,949 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:18:49,973 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2019-10-07 15:18:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-07 15:18:49,985 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:49,986 INFO L385 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] [2019-10-07 15:18:49,989 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:49,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:49,995 INFO L82 PathProgramCache]: Analyzing trace with hash -855549024, now seen corresponding path program 1 times [2019-10-07 15:18:50,005 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:50,005 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:50,006 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:50,006 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:50,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:50,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:50,380 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:50,381 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:50,381 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:18:50,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:18:50,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:18:50,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:18:50,402 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2019-10-07 15:18:50,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:50,463 INFO L93 Difference]: Finished difference Result 271 states and 330 transitions. [2019-10-07 15:18:50,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:18:50,465 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2019-10-07 15:18:50,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:50,486 INFO L225 Difference]: With dead ends: 271 [2019-10-07 15:18:50,486 INFO L226 Difference]: Without dead ends: 136 [2019-10-07 15:18:50,497 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:18:50,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-07 15:18:50,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-10-07 15:18:50,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-07 15:18:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2019-10-07 15:18:50,602 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 47 [2019-10-07 15:18:50,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:50,602 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2019-10-07 15:18:50,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:18:50,603 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2019-10-07 15:18:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-07 15:18:50,608 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:50,608 INFO L385 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] [2019-10-07 15:18:50,609 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:50,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:50,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1912018837, now seen corresponding path program 1 times [2019-10-07 15:18:50,610 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:50,610 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:50,611 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:50,611 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:50,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:50,793 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:50,794 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:50,794 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:18:50,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:18:50,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:18:50,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:18:50,797 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 3 states. [2019-10-07 15:18:50,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:50,831 INFO L93 Difference]: Finished difference Result 225 states and 264 transitions. [2019-10-07 15:18:50,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:18:50,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-10-07 15:18:50,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:50,836 INFO L225 Difference]: With dead ends: 225 [2019-10-07 15:18:50,836 INFO L226 Difference]: Without dead ends: 128 [2019-10-07 15:18:50,841 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:18:50,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-07 15:18:50,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-07 15:18:50,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-07 15:18:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2019-10-07 15:18:50,875 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 48 [2019-10-07 15:18:50,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:50,876 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2019-10-07 15:18:50,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:18:50,876 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2019-10-07 15:18:50,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-07 15:18:50,885 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:50,885 INFO L385 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] [2019-10-07 15:18:50,886 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:50,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:50,886 INFO L82 PathProgramCache]: Analyzing trace with hash 385099890, now seen corresponding path program 1 times [2019-10-07 15:18:50,887 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:50,887 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:50,887 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:50,888 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:51,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:51,133 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:51,134 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:51,134 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:18:51,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:18:51,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:18:51,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:18:51,136 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 7 states. [2019-10-07 15:18:51,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:51,498 INFO L93 Difference]: Finished difference Result 234 states and 275 transitions. [2019-10-07 15:18:51,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:18:51,499 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-07 15:18:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:51,501 INFO L225 Difference]: With dead ends: 234 [2019-10-07 15:18:51,501 INFO L226 Difference]: Without dead ends: 128 [2019-10-07 15:18:51,503 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:18:51,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-07 15:18:51,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-07 15:18:51,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-07 15:18:51,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2019-10-07 15:18:51,518 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 51 [2019-10-07 15:18:51,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:51,519 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2019-10-07 15:18:51,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:18:51,519 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2019-10-07 15:18:51,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-07 15:18:51,521 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:51,521 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:18:51,522 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:51,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:51,522 INFO L82 PathProgramCache]: Analyzing trace with hash 882274702, now seen corresponding path program 1 times [2019-10-07 15:18:51,522 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:51,522 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:51,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:51,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:51,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:18:51,617 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:51,617 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:51,617 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:18:51,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:18:51,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:18:51,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:18:51,618 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 5 states. [2019-10-07 15:18:52,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:52,156 INFO L93 Difference]: Finished difference Result 346 states and 412 transitions. [2019-10-07 15:18:52,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:18:52,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-10-07 15:18:52,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:52,164 INFO L225 Difference]: With dead ends: 346 [2019-10-07 15:18:52,165 INFO L226 Difference]: Without dead ends: 240 [2019-10-07 15:18:52,166 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:18:52,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2019-10-07 15:18:52,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 223. [2019-10-07 15:18:52,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-10-07 15:18:52,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 248 transitions. [2019-10-07 15:18:52,217 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 248 transitions. Word has length 68 [2019-10-07 15:18:52,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:52,219 INFO L462 AbstractCegarLoop]: Abstraction has 223 states and 248 transitions. [2019-10-07 15:18:52,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:18:52,220 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 248 transitions. [2019-10-07 15:18:52,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-07 15:18:52,221 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:52,222 INFO L385 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] [2019-10-07 15:18:52,222 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:52,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:52,222 INFO L82 PathProgramCache]: Analyzing trace with hash 218550541, now seen corresponding path program 1 times [2019-10-07 15:18:52,223 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:52,223 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:52,223 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:52,223 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:52,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:52,340 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:52,340 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:52,340 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 15:18:52,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 15:18:52,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 15:18:52,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 15:18:52,343 INFO L87 Difference]: Start difference. First operand 223 states and 248 transitions. Second operand 6 states. [2019-10-07 15:18:52,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:52,537 INFO L93 Difference]: Finished difference Result 546 states and 623 transitions. [2019-10-07 15:18:52,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:18:52,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2019-10-07 15:18:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:52,543 INFO L225 Difference]: With dead ends: 546 [2019-10-07 15:18:52,544 INFO L226 Difference]: Without dead ends: 345 [2019-10-07 15:18:52,545 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:18:52,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-10-07 15:18:52,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 335. [2019-10-07 15:18:52,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-10-07 15:18:52,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 376 transitions. [2019-10-07 15:18:52,577 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 376 transitions. Word has length 78 [2019-10-07 15:18:52,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:52,577 INFO L462 AbstractCegarLoop]: Abstraction has 335 states and 376 transitions. [2019-10-07 15:18:52,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 15:18:52,578 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 376 transitions. [2019-10-07 15:18:52,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 15:18:52,579 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:52,579 INFO L385 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] [2019-10-07 15:18:52,580 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:52,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:52,580 INFO L82 PathProgramCache]: Analyzing trace with hash 313023912, now seen corresponding path program 1 times [2019-10-07 15:18:52,580 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:52,581 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:52,581 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:52,581 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:52,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:52,840 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:52,840 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:52,840 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:18:52,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:18:52,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:18:52,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:18:52,842 INFO L87 Difference]: Start difference. First operand 335 states and 376 transitions. Second operand 14 states. [2019-10-07 15:18:53,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:53,447 INFO L93 Difference]: Finished difference Result 665 states and 766 transitions. [2019-10-07 15:18:53,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:18:53,448 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2019-10-07 15:18:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:53,456 INFO L225 Difference]: With dead ends: 665 [2019-10-07 15:18:53,457 INFO L226 Difference]: Without dead ends: 464 [2019-10-07 15:18:53,458 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-10-07 15:18:53,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-07 15:18:53,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 444. [2019-10-07 15:18:53,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2019-10-07 15:18:53,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 506 transitions. [2019-10-07 15:18:53,513 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 506 transitions. Word has length 81 [2019-10-07 15:18:53,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:53,514 INFO L462 AbstractCegarLoop]: Abstraction has 444 states and 506 transitions. [2019-10-07 15:18:53,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:18:53,514 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 506 transitions. [2019-10-07 15:18:53,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-07 15:18:53,519 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:53,519 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:18:53,520 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:53,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:53,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1956980434, now seen corresponding path program 1 times [2019-10-07 15:18:53,520 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:53,521 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:53,521 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:53,521 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:53,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:53,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:18:53,658 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:53,658 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:18:53,658 INFO L95 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 [2019-10-07 15:18:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:53,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-07 15:18:53,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:18:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:54,078 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:18:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:18:54,665 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:18:54,665 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2019-10-07 15:18:54,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 15:18:54,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 15:18:54,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-07 15:18:54,666 INFO L87 Difference]: Start difference. First operand 444 states and 506 transitions. Second operand 8 states. [2019-10-07 15:18:55,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:55,311 INFO L93 Difference]: Finished difference Result 1267 states and 1475 transitions. [2019-10-07 15:18:55,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:18:55,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2019-10-07 15:18:55,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:55,320 INFO L225 Difference]: With dead ends: 1267 [2019-10-07 15:18:55,321 INFO L226 Difference]: Without dead ends: 845 [2019-10-07 15:18:55,324 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-07 15:18:55,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-07 15:18:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 830. [2019-10-07 15:18:55,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2019-10-07 15:18:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 950 transitions. [2019-10-07 15:18:55,396 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 950 transitions. Word has length 91 [2019-10-07 15:18:55,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:55,396 INFO L462 AbstractCegarLoop]: Abstraction has 830 states and 950 transitions. [2019-10-07 15:18:55,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 15:18:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 950 transitions. [2019-10-07 15:18:55,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-07 15:18:55,399 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:55,399 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:18:55,604 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:18:55,604 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:55,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:55,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1214498269, now seen corresponding path program 1 times [2019-10-07 15:18:55,605 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:55,608 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:55,608 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:55,608 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:55,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:18:55,815 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:55,815 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:55,815 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:18:55,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:18:55,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:18:55,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:18:55,817 INFO L87 Difference]: Start difference. First operand 830 states and 950 transitions. Second operand 12 states. [2019-10-07 15:18:57,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:57,547 INFO L93 Difference]: Finished difference Result 1655 states and 1929 transitions. [2019-10-07 15:18:57,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:18:57,550 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2019-10-07 15:18:57,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:57,559 INFO L225 Difference]: With dead ends: 1655 [2019-10-07 15:18:57,559 INFO L226 Difference]: Without dead ends: 1233 [2019-10-07 15:18:57,562 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2019-10-07 15:18:57,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2019-10-07 15:18:57,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1199. [2019-10-07 15:18:57,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2019-10-07 15:18:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1369 transitions. [2019-10-07 15:18:57,653 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1369 transitions. Word has length 94 [2019-10-07 15:18:57,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:57,654 INFO L462 AbstractCegarLoop]: Abstraction has 1199 states and 1369 transitions. [2019-10-07 15:18:57,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:18:57,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1369 transitions. [2019-10-07 15:18:57,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-07 15:18:57,661 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:57,661 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:18:57,662 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:57,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:57,662 INFO L82 PathProgramCache]: Analyzing trace with hash 393718867, now seen corresponding path program 1 times [2019-10-07 15:18:57,663 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:57,663 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:57,663 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:57,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:57,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:57,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:18:57,819 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:57,819 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:57,819 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 15:18:57,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 15:18:57,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 15:18:57,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:18:57,821 INFO L87 Difference]: Start difference. First operand 1199 states and 1369 transitions. Second operand 10 states. [2019-10-07 15:18:58,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:58,156 INFO L93 Difference]: Finished difference Result 2388 states and 2729 transitions. [2019-10-07 15:18:58,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 15:18:58,157 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 94 [2019-10-07 15:18:58,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:58,165 INFO L225 Difference]: With dead ends: 2388 [2019-10-07 15:18:58,165 INFO L226 Difference]: Without dead ends: 1211 [2019-10-07 15:18:58,169 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:18:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2019-10-07 15:18:58,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1115. [2019-10-07 15:18:58,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2019-10-07 15:18:58,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1222 transitions. [2019-10-07 15:18:58,263 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1222 transitions. Word has length 94 [2019-10-07 15:18:58,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:58,266 INFO L462 AbstractCegarLoop]: Abstraction has 1115 states and 1222 transitions. [2019-10-07 15:18:58,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 15:18:58,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1222 transitions. [2019-10-07 15:18:58,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 15:18:58,271 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:58,271 INFO L385 BasicCegarLoop]: trace histogram [4, 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] [2019-10-07 15:18:58,272 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:58,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:58,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1496595950, now seen corresponding path program 1 times [2019-10-07 15:18:58,272 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:58,272 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:58,273 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:58,273 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:58,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:58,431 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 15:18:58,432 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:58,432 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:18:58,432 INFO L95 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 [2019-10-07 15:18:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:58,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-07 15:18:58,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:18:58,777 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 15:18:58,778 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:18:58,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:58,981 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:59,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:59,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:59,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 15:18:59,268 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:18:59,268 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 21 [2019-10-07 15:18:59,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:18:59,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:18:59,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-10-07 15:18:59,270 INFO L87 Difference]: Start difference. First operand 1115 states and 1222 transitions. Second operand 9 states. [2019-10-07 15:18:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:59,864 INFO L93 Difference]: Finished difference Result 2525 states and 2814 transitions. [2019-10-07 15:18:59,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 15:18:59,865 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 132 [2019-10-07 15:18:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:59,879 INFO L225 Difference]: With dead ends: 2525 [2019-10-07 15:18:59,879 INFO L226 Difference]: Without dead ends: 1708 [2019-10-07 15:18:59,883 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2019-10-07 15:18:59,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2019-10-07 15:19:00,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1620. [2019-10-07 15:19:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1620 states. [2019-10-07 15:19:00,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 1774 transitions. [2019-10-07 15:19:00,011 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 1774 transitions. Word has length 132 [2019-10-07 15:19:00,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:00,014 INFO L462 AbstractCegarLoop]: Abstraction has 1620 states and 1774 transitions. [2019-10-07 15:19:00,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:19:00,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 1774 transitions. [2019-10-07 15:19:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 15:19:00,019 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:00,020 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:19:00,225 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:00,226 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:00,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:00,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1038300165, now seen corresponding path program 1 times [2019-10-07 15:19:00,227 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:00,228 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:00,228 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:00,228 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:00,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 15:19:00,419 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:00,419 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:19:00,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:00,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 15:19:00,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:19:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-07 15:19:00,703 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:19:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-07 15:19:01,381 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:19:01,381 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 11] total 24 [2019-10-07 15:19:01,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:19:01,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:19:01,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2019-10-07 15:19:01,382 INFO L87 Difference]: Start difference. First operand 1620 states and 1774 transitions. Second operand 11 states. [2019-10-07 15:19:02,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:02,046 INFO L93 Difference]: Finished difference Result 3295 states and 3754 transitions. [2019-10-07 15:19:02,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:19:02,050 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 145 [2019-10-07 15:19:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:02,052 INFO L225 Difference]: With dead ends: 3295 [2019-10-07 15:19:02,052 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 15:19:02,059 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2019-10-07 15:19:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 15:19:02,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 15:19:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 15:19:02,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 15:19:02,061 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2019-10-07 15:19:02,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:02,061 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 15:19:02,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:19:02,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 15:19:02,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 15:19:02,267 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:02,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 15:19:03,903 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2019-10-07 15:19:04,075 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2019-10-07 15:19:04,347 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 22 [2019-10-07 15:19:04,631 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 21 [2019-10-07 15:19:04,909 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2019-10-07 15:19:05,144 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-10-07 15:19:05,393 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 23 [2019-10-07 15:19:05,757 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2019-10-07 15:19:06,327 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 22 [2019-10-07 15:19:06,911 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 44 [2019-10-07 15:19:07,142 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 33 [2019-10-07 15:19:07,517 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 33 [2019-10-07 15:19:07,683 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2019-10-07 15:19:07,828 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2019-10-07 15:19:08,241 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 22 [2019-10-07 15:19:08,403 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 24 [2019-10-07 15:19:08,620 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-10-07 15:19:08,701 INFO L443 ceAbstractionStarter]: For program point L163-2(lines 163 184) no Hoare annotation was computed. [2019-10-07 15:19:08,701 INFO L443 ceAbstractionStarter]: For program point L185(lines 162 186) no Hoare annotation was computed. [2019-10-07 15:19:08,701 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 173) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 138 193) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 138 193) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point L220-2(lines 220 245) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point L246(lines 219 247) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 194 253) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point L239(line 239) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 194 253) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point L239-1(line 239) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 194 253) no Hoare annotation was computed. [2019-10-07 15:19:08,702 INFO L443 ceAbstractionStarter]: For program point L226(lines 226 230) no Hoare annotation was computed. [2019-10-07 15:19:08,703 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 582 588) the Hoare annotation is: true [2019-10-07 15:19:08,703 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 582 588) no Hoare annotation was computed. [2019-10-07 15:19:08,703 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 589 597) no Hoare annotation was computed. [2019-10-07 15:19:08,703 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 589 597) the Hoare annotation is: true [2019-10-07 15:19:08,703 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 992 1014) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:08,704 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 992 1014) no Hoare annotation was computed. [2019-10-07 15:19:08,704 INFO L439 ceAbstractionStarter]: At program point L1004(line 1004) the Hoare annotation is: (or (and (= main_~tmp~11 1) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~11 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:08,704 INFO L439 ceAbstractionStarter]: At program point L1004-1(line 1004) the Hoare annotation is: (or (and (= main_~tmp~11 1) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~11 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:08,704 INFO L443 ceAbstractionStarter]: For program point L1002(lines 1002 1009) no Hoare annotation was computed. [2019-10-07 15:19:08,704 INFO L443 ceAbstractionStarter]: For program point L1002-1(lines 1002 1009) no Hoare annotation was computed. [2019-10-07 15:19:08,705 INFO L443 ceAbstractionStarter]: For program point L1000(line 1000) no Hoare annotation was computed. [2019-10-07 15:19:08,705 INFO L439 ceAbstractionStarter]: At program point L999(line 999) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:08,705 INFO L439 ceAbstractionStarter]: At program point L998(line 998) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:08,705 INFO L439 ceAbstractionStarter]: At program point L998-1(line 998) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:08,705 INFO L443 ceAbstractionStarter]: For program point L961(line 961) no Hoare annotation was computed. [2019-10-07 15:19:08,706 INFO L443 ceAbstractionStarter]: For program point L960(line 960) no Hoare annotation was computed. [2019-10-07 15:19:08,706 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 951 974) no Hoare annotation was computed. [2019-10-07 15:19:08,706 INFO L443 ceAbstractionStarter]: For program point L959(line 959) no Hoare annotation was computed. [2019-10-07 15:19:08,706 INFO L443 ceAbstractionStarter]: For program point L958(line 958) no Hoare annotation was computed. [2019-10-07 15:19:08,706 INFO L443 ceAbstractionStarter]: For program point L957(line 957) no Hoare annotation was computed. [2019-10-07 15:19:08,706 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 951 974) no Hoare annotation was computed. [2019-10-07 15:19:08,706 INFO L443 ceAbstractionStarter]: For program point L956(line 956) no Hoare annotation was computed. [2019-10-07 15:19:08,706 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 951 974) no Hoare annotation was computed. [2019-10-07 15:19:08,706 INFO L443 ceAbstractionStarter]: For program point L969(line 969) no Hoare annotation was computed. [2019-10-07 15:19:08,707 INFO L443 ceAbstractionStarter]: For program point L968(line 968) no Hoare annotation was computed. [2019-10-07 15:19:08,707 INFO L443 ceAbstractionStarter]: For program point L967(line 967) no Hoare annotation was computed. [2019-10-07 15:19:08,707 INFO L443 ceAbstractionStarter]: For program point L966(line 966) no Hoare annotation was computed. [2019-10-07 15:19:08,707 INFO L443 ceAbstractionStarter]: For program point L965(line 965) no Hoare annotation was computed. [2019-10-07 15:19:08,707 INFO L443 ceAbstractionStarter]: For program point L964(line 964) no Hoare annotation was computed. [2019-10-07 15:19:08,707 INFO L443 ceAbstractionStarter]: For program point L963(line 963) no Hoare annotation was computed. [2019-10-07 15:19:08,707 INFO L443 ceAbstractionStarter]: For program point L962(line 962) no Hoare annotation was computed. [2019-10-07 15:19:08,707 INFO L443 ceAbstractionStarter]: For program point L673(lines 673 681) no Hoare annotation was computed. [2019-10-07 15:19:08,708 INFO L439 ceAbstractionStarter]: At program point L671(line 671) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,708 INFO L443 ceAbstractionStarter]: For program point L671-1(line 671) no Hoare annotation was computed. [2019-10-07 15:19:08,708 INFO L443 ceAbstractionStarter]: For program point L669(lines 669 686) no Hoare annotation was computed. [2019-10-07 15:19:08,708 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 665 689) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,708 INFO L439 ceAbstractionStarter]: At program point L684(line 684) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,709 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 665 689) no Hoare annotation was computed. [2019-10-07 15:19:08,709 INFO L443 ceAbstractionStarter]: For program point L684-1(lines 665 689) no Hoare annotation was computed. [2019-10-07 15:19:08,709 INFO L439 ceAbstractionStarter]: At program point L679(line 679) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,709 INFO L439 ceAbstractionStarter]: At program point L675(line 675) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,709 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 760 768) no Hoare annotation was computed. [2019-10-07 15:19:08,709 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 760 768) the Hoare annotation is: true [2019-10-07 15:19:08,710 INFO L446 ceAbstractionStarter]: At program point L831(line 831) the Hoare annotation is: true [2019-10-07 15:19:08,710 INFO L443 ceAbstractionStarter]: For program point L831-1(line 831) no Hoare annotation was computed. [2019-10-07 15:19:08,710 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 824 842) the Hoare annotation is: true [2019-10-07 15:19:08,710 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 824 842) no Hoare annotation was computed. [2019-10-07 15:19:08,710 INFO L443 ceAbstractionStarter]: For program point L799(line 799) no Hoare annotation was computed. [2019-10-07 15:19:08,710 INFO L443 ceAbstractionStarter]: For program point L799-1(line 799) no Hoare annotation was computed. [2019-10-07 15:19:08,710 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 769 804) no Hoare annotation was computed. [2019-10-07 15:19:08,710 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 769 804) no Hoare annotation was computed. [2019-10-07 15:19:08,711 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 575 581) no Hoare annotation was computed. [2019-10-07 15:19:08,711 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 575 581) the Hoare annotation is: true [2019-10-07 15:19:08,711 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 92 137) no Hoare annotation was computed. [2019-10-07 15:19:08,711 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 92 137) no Hoare annotation was computed. [2019-10-07 15:19:08,711 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 405 450) no Hoare annotation was computed. [2019-10-07 15:19:08,711 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 405 450) no Hoare annotation was computed. [2019-10-07 15:19:08,711 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 982 991) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:08,711 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 982 991) no Hoare annotation was computed. [2019-10-07 15:19:08,712 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 982 991) no Hoare annotation was computed. [2019-10-07 15:19:08,712 INFO L443 ceAbstractionStarter]: For program point L754-1(line 754) no Hoare annotation was computed. [2019-10-07 15:19:08,712 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 749 759) the Hoare annotation is: true [2019-10-07 15:19:08,712 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 749 759) no Hoare annotation was computed. [2019-10-07 15:19:08,712 INFO L446 ceAbstractionStarter]: At program point L754(line 754) the Hoare annotation is: true [2019-10-07 15:19:08,712 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 741 748) the Hoare annotation is: (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-07 15:19:08,712 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 741 748) no Hoare annotation was computed. [2019-10-07 15:19:08,713 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 537 550) no Hoare annotation was computed. [2019-10-07 15:19:08,713 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 537 550) the Hoare annotation is: true [2019-10-07 15:19:08,713 INFO L439 ceAbstractionStarter]: At program point L705(line 705) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,713 INFO L439 ceAbstractionStarter]: At program point L701(line 701) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,713 INFO L443 ceAbstractionStarter]: For program point L699(lines 699 707) no Hoare annotation was computed. [2019-10-07 15:19:08,713 INFO L439 ceAbstractionStarter]: At program point L697(line 697) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,713 INFO L443 ceAbstractionStarter]: For program point L697-1(line 697) no Hoare annotation was computed. [2019-10-07 15:19:08,714 INFO L443 ceAbstractionStarter]: For program point L695(lines 695 712) no Hoare annotation was computed. [2019-10-07 15:19:08,714 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 691 715) no Hoare annotation was computed. [2019-10-07 15:19:08,714 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 691 715) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,714 INFO L439 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,714 INFO L443 ceAbstractionStarter]: For program point L710-1(lines 691 715) no Hoare annotation was computed. [2019-10-07 15:19:08,714 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 631 637) no Hoare annotation was computed. [2019-10-07 15:19:08,714 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 631 637) the Hoare annotation is: true [2019-10-07 15:19:08,715 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 853 918) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:08,715 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 853 918) no Hoare annotation was computed. [2019-10-07 15:19:08,715 INFO L439 ceAbstractionStarter]: At program point L911(lines 862 912) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:08,715 INFO L439 ceAbstractionStarter]: At program point L901-2(lines 893 906) the Hoare annotation is: (let ((.cse7 (not (= |old(~methaneLevelCritical~0)| 0)))) (let ((.cse1 (= 0 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse5 (or .cse7 (= 1 ~methaneLevelCritical~0))) (.cse2 (= 0 test_~splverifierCounter~0)) (.cse3 (< ~waterLevel~0 3)) (.cse4 (= ~pumpRunning~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 .cse6) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse6) (not (= |old(~waterLevel~0)| 1)) .cse7 (and .cse0 .cse5 .cse2 .cse3 .cse4)))) [2019-10-07 15:19:08,715 INFO L443 ceAbstractionStarter]: For program point L864(lines 863 910) no Hoare annotation was computed. [2019-10-07 15:19:08,716 INFO L439 ceAbstractionStarter]: At program point L895(line 895) the Hoare annotation is: (let ((.cse7 (not (= |old(~methaneLevelCritical~0)| 0)))) (let ((.cse1 (= 0 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse5 (or .cse7 (= 1 ~methaneLevelCritical~0))) (.cse2 (= 0 test_~splverifierCounter~0)) (.cse3 (< ~waterLevel~0 3)) (.cse4 (= ~pumpRunning~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 .cse6) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse6) (not (= |old(~waterLevel~0)| 1)) .cse7 (and .cse0 .cse5 .cse2 .cse3 .cse4)))) [2019-10-07 15:19:08,716 INFO L443 ceAbstractionStarter]: For program point L893(lines 893 906) no Hoare annotation was computed. [2019-10-07 15:19:08,716 INFO L439 ceAbstractionStarter]: At program point L885(line 885) the Hoare annotation is: (let ((.cse1 (= 1 ~methaneLevelCritical~0)) (.cse5 (= ~pumpRunning~0 0)) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= 0 test_~splverifierCounter~0)) (.cse3 (< ~waterLevel~0 3))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse5) (and (and .cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) .cse2 .cse5) .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse4 (and .cse0 (= 0 ~methaneLevelCritical~0) .cse2)) .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-07 15:19:08,719 INFO L443 ceAbstractionStarter]: For program point L883(lines 883 889) no Hoare annotation was computed. [2019-10-07 15:19:08,720 INFO L443 ceAbstractionStarter]: For program point L883-1(lines 883 889) no Hoare annotation was computed. [2019-10-07 15:19:08,720 INFO L439 ceAbstractionStarter]: At program point L908(lines 863 910) the Hoare annotation is: (let ((.cse5 (= 0 ~methaneLevelCritical~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 test_~splverifierCounter~0)) (.cse3 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (not (= ~waterLevel~0 2)) .cse5 .cse2 .cse3 .cse6) (and .cse0 .cse5 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse6) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-07 15:19:08,720 INFO L439 ceAbstractionStarter]: At program point L875(line 875) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0)) (.cse5 (= 0 test_~splverifierCounter~0))) (let ((.cse0 (and .cse4 .cse5 (= ~pumpRunning~0 0))) (.cse3 (= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 ~methaneLevelCritical~0)) (.cse2 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse4 .cse3 .cse5 .cse2 .cse6) (and .cse4 .cse1 .cse5 .cse2 .cse6) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))))) [2019-10-07 15:19:08,720 INFO L443 ceAbstractionStarter]: For program point L873(lines 873 879) no Hoare annotation was computed. [2019-10-07 15:19:08,720 INFO L443 ceAbstractionStarter]: For program point L873-1(lines 873 879) no Hoare annotation was computed. [2019-10-07 15:19:08,720 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 853 918) no Hoare annotation was computed. [2019-10-07 15:19:08,721 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 359 404) no Hoare annotation was computed. [2019-10-07 15:19:08,721 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 359 404) no Hoare annotation was computed. [2019-10-07 15:19:08,721 INFO L439 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 716 723) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-10-07 15:19:08,721 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 716 723) no Hoare annotation was computed. [2019-10-07 15:19:08,721 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 551 559) the Hoare annotation is: true [2019-10-07 15:19:08,721 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 551 559) no Hoare annotation was computed. [2019-10-07 15:19:08,721 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 505 527) no Hoare annotation was computed. [2019-10-07 15:19:08,721 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 505 527) no Hoare annotation was computed. [2019-10-07 15:19:08,721 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 256 358) no Hoare annotation was computed. [2019-10-07 15:19:08,722 INFO L443 ceAbstractionStarter]: For program point L285(lines 285 301) no Hoare annotation was computed. [2019-10-07 15:19:08,722 INFO L443 ceAbstractionStarter]: For program point L306(lines 305 325) no Hoare annotation was computed. [2019-10-07 15:19:08,722 INFO L443 ceAbstractionStarter]: For program point L337(line 337) no Hoare annotation was computed. [2019-10-07 15:19:08,722 INFO L443 ceAbstractionStarter]: For program point L337-1(line 337) no Hoare annotation was computed. [2019-10-07 15:19:08,722 INFO L443 ceAbstractionStarter]: For program point L302(lines 302 343) no Hoare annotation was computed. [2019-10-07 15:19:08,722 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 256 358) no Hoare annotation was computed. [2019-10-07 15:19:08,722 INFO L443 ceAbstractionStarter]: For program point L321(line 321) no Hoare annotation was computed. [2019-10-07 15:19:08,722 INFO L443 ceAbstractionStarter]: For program point L321-1(line 321) no Hoare annotation was computed. [2019-10-07 15:19:08,723 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 284) no Hoare annotation was computed. [2019-10-07 15:19:08,723 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 256 358) no Hoare annotation was computed. [2019-10-07 15:19:08,723 INFO L443 ceAbstractionStarter]: For program point L305-2(lines 305 325) no Hoare annotation was computed. [2019-10-07 15:19:08,723 INFO L443 ceAbstractionStarter]: For program point L326(lines 304 327) no Hoare annotation was computed. [2019-10-07 15:19:08,723 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 565 574) no Hoare annotation was computed. [2019-10-07 15:19:08,723 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 565 574) no Hoare annotation was computed. [2019-10-07 15:19:08,723 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (or (< ~waterLevel~0 3) (<= 3 |old(~waterLevel~0)|)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2019-10-07 15:19:08,723 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 15:19:08,724 INFO L439 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (< ~waterLevel~0 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2) (or .cse0 (and (= ~methaneLevelCritical~0 activatePump_~tmp~7) (= ~pumpRunning~0 0)) .cse1 .cse2))) [2019-10-07 15:19:08,724 INFO L443 ceAbstractionStarter]: For program point L735-1(lines 724 740) no Hoare annotation was computed. [2019-10-07 15:19:08,724 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 724 740) no Hoare annotation was computed. [2019-10-07 15:19:08,724 INFO L443 ceAbstractionStarter]: For program point L731(lines 731 737) no Hoare annotation was computed. [2019-10-07 15:19:08,724 INFO L439 ceAbstractionStarter]: At program point L729(line 729) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-10-07 15:19:08,724 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 724 740) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-10-07 15:19:08,724 INFO L443 ceAbstractionStarter]: For program point L729-1(line 729) no Hoare annotation was computed. [2019-10-07 15:19:08,724 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 528 536) the Hoare annotation is: true [2019-10-07 15:19:08,725 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 528 536) no Hoare annotation was computed. [2019-10-07 15:19:08,725 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 805 823) no Hoare annotation was computed. [2019-10-07 15:19:08,725 INFO L446 ceAbstractionStarter]: At program point L812(line 812) the Hoare annotation is: true [2019-10-07 15:19:08,725 INFO L443 ceAbstractionStarter]: For program point L812-1(line 812) no Hoare annotation was computed. [2019-10-07 15:19:08,725 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 805 823) the Hoare annotation is: true [2019-10-07 15:19:08,725 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-07 15:19:08,725 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-07 15:19:08,725 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 484 495) the Hoare annotation is: (let ((.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse0 (not (< ~waterLevel~0 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1) .cse2) (or .cse2 (or .cse0 (or .cse1 (not (= 1 ~pumpRunning~0))))))) [2019-10-07 15:19:08,726 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 484 495) no Hoare annotation was computed. [2019-10-07 15:19:08,726 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 496 504) the Hoare annotation is: true [2019-10-07 15:19:08,726 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 496 504) no Hoare annotation was computed. [2019-10-07 15:19:08,726 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 607 630) the Hoare annotation is: (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (< ~waterLevel~0 3))) (and (or (or .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1)) (and .cse2 (= ~pumpRunning~0 1))) (or (not (< |old(~waterLevel~0)| 2)) .cse3 .cse1 (< ~waterLevel~0 2)) (or .cse3 (= 1 ~waterLevel~0) .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse0 .cse1 (and .cse2 (= ~pumpRunning~0 0))))) [2019-10-07 15:19:08,726 INFO L439 ceAbstractionStarter]: At program point L620(line 620) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 2)) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (and (= ~pumpRunning~0 1) .cse0) (or .cse1 (or (not (= 1 |old(~pumpRunning~0)|)) .cse2))) (or (not (< |old(~waterLevel~0)| 2)) .cse3 .cse2 .cse0) (or .cse3 (= 1 ~waterLevel~0) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse1 .cse2 (and (< ~waterLevel~0 3) (= ~pumpRunning~0 0))))) [2019-10-07 15:19:08,726 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 607 630) no Hoare annotation was computed. [2019-10-07 15:19:08,727 INFO L439 ceAbstractionStarter]: At program point L618(lines 618 624) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 2)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 1)) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse7 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0))) (and (or (and .cse0 .cse1) (or .cse2 (or (not (= 1 |old(~pumpRunning~0)|)) .cse3)) (and .cse4 .cse1)) (or .cse5 .cse6 .cse2 .cse3 (and .cse7 .cse0)) (or (not (< |old(~waterLevel~0)| 2)) .cse5 .cse3 .cse1) (or .cse5 (= 1 ~waterLevel~0) .cse3 (not (= |old(~waterLevel~0)| 1))) (or .cse5 (and .cse7 .cse4) .cse2 .cse3 (not .cse6) (and (not (= ~waterLevel~0 2)) .cse7 .cse0)))) [2019-10-07 15:19:08,727 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 607 630) no Hoare annotation was computed. [2019-10-07 15:19:08,727 INFO L439 ceAbstractionStarter]: At program point L613(line 613) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (< ~waterLevel~0 3) (= ~pumpRunning~0 1)) (or .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1))))) [2019-10-07 15:19:08,727 INFO L443 ceAbstractionStarter]: For program point L611(lines 610 629) no Hoare annotation was computed. [2019-10-07 15:19:08,727 INFO L446 ceAbstractionStarter]: At program point L931-2(lines 931 945) the Hoare annotation is: true [2019-10-07 15:19:08,728 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 921 950) no Hoare annotation was computed. [2019-10-07 15:19:08,728 INFO L446 ceAbstractionStarter]: At program point L927(line 927) the Hoare annotation is: true [2019-10-07 15:19:08,728 INFO L443 ceAbstractionStarter]: For program point L927-1(line 927) no Hoare annotation was computed. [2019-10-07 15:19:08,728 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 921 950) the Hoare annotation is: true [2019-10-07 15:19:08,728 INFO L446 ceAbstractionStarter]: At program point L946(lines 921 950) the Hoare annotation is: true [2019-10-07 15:19:08,728 INFO L443 ceAbstractionStarter]: For program point L942(line 942) no Hoare annotation was computed. [2019-10-07 15:19:08,728 INFO L443 ceAbstractionStarter]: For program point L935(lines 935 939) no Hoare annotation was computed. [2019-10-07 15:19:08,728 INFO L446 ceAbstractionStarter]: At program point L935-1(lines 935 939) the Hoare annotation is: true [2019-10-07 15:19:08,729 INFO L439 ceAbstractionStarter]: At program point L65(line 65) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (< ~waterLevel~0 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= 1 ~pumpRunning~0)) .cse2) (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 .cse2))) [2019-10-07 15:19:08,729 INFO L443 ceAbstractionStarter]: For program point L65-1(line 65) no Hoare annotation was computed. [2019-10-07 15:19:08,729 INFO L443 ceAbstractionStarter]: For program point L61(lines 61 81) no Hoare annotation was computed. [2019-10-07 15:19:08,729 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 52 84) no Hoare annotation was computed. [2019-10-07 15:19:08,729 INFO L446 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: true [2019-10-07 15:19:08,729 INFO L443 ceAbstractionStarter]: For program point L59-1(line 59) no Hoare annotation was computed. [2019-10-07 15:19:08,729 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 52 84) the Hoare annotation is: true [2019-10-07 15:19:08,729 INFO L439 ceAbstractionStarter]: At program point L75(line 75) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (< ~waterLevel~0 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (< ~waterLevel~0 2)) .cse0 .cse1) (or .cse2 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (= ~methaneLevelCritical~0 0) .cse2 .cse1))) [2019-10-07 15:19:08,730 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 77) no Hoare annotation was computed. [2019-10-07 15:19:08,730 INFO L439 ceAbstractionStarter]: At program point L69(line 69) the Hoare annotation is: (let ((.cse2 (not (= 1 ~pumpRunning~0))) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (< ~waterLevel~0 3))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (< ~waterLevel~0 2)) .cse4 .cse3) (or (= ~waterLevel~0 2) .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse3))) [2019-10-07 15:19:08,730 INFO L443 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2019-10-07 15:19:08,730 INFO L443 ceAbstractionStarter]: For program point L67(lines 67 80) no Hoare annotation was computed. [2019-10-07 15:19:08,730 INFO L443 ceAbstractionStarter]: For program point L67-1(lines 52 84) no Hoare annotation was computed. [2019-10-07 15:19:08,730 INFO L439 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 460 471) the Hoare annotation is: (or (< ~waterLevel~0 3) (or (not (= ~systemActive~0 1)) (not (< |old(~waterLevel~0)| 3)) (not (= 1 ~pumpRunning~0)))) [2019-10-07 15:19:08,730 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 460 471) no Hoare annotation was computed. [2019-10-07 15:19:08,731 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 975 981) no Hoare annotation was computed. [2019-10-07 15:19:08,731 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 975 981) the Hoare annotation is: true [2019-10-07 15:19:08,731 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 15:19:08,731 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-10-07 15:19:08,731 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 15:19:08,731 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 15:19:08,731 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 843 850) no Hoare annotation was computed. [2019-10-07 15:19:08,732 INFO L439 ceAbstractionStarter]: At program point startSystemENTRY(lines 843 850) the Hoare annotation is: (let ((.cse0 (not (< ~waterLevel~0 3))) (.cse1 (not (= |old(~systemActive~0)| 1))) (.cse2 (= 1 ~systemActive~0))) (and (or (or .cse0 (or (not (= 1 ~pumpRunning~0)) .cse1)) .cse2) (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 .cse2))) [2019-10-07 15:19:08,732 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 639 663) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,732 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 639 663) no Hoare annotation was computed. [2019-10-07 15:19:08,732 INFO L439 ceAbstractionStarter]: At program point L658(line 658) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,732 INFO L443 ceAbstractionStarter]: For program point L658-1(lines 639 663) no Hoare annotation was computed. [2019-10-07 15:19:08,733 INFO L439 ceAbstractionStarter]: At program point L653(line 653) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (and (not (= ~waterLevel~0 2)) (= ~pumpRunning~0 0))) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,733 INFO L439 ceAbstractionStarter]: At program point L649(line 649) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (and (or (not (= ~waterLevel~0 2)) (= 1 processEnvironment__wrappee__highWaterSensor_~tmp~4)) (= ~pumpRunning~0 0)) (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,733 INFO L443 ceAbstractionStarter]: For program point L647(lines 647 655) no Hoare annotation was computed. [2019-10-07 15:19:08,733 INFO L439 ceAbstractionStarter]: At program point L645(line 645) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:08,733 INFO L443 ceAbstractionStarter]: For program point L645-1(line 645) no Hoare annotation was computed. [2019-10-07 15:19:08,733 INFO L443 ceAbstractionStarter]: For program point L643(lines 643 660) no Hoare annotation was computed. [2019-10-07 15:19:08,733 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 472 483) no Hoare annotation was computed. [2019-10-07 15:19:08,734 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 472 483) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (< ~waterLevel~0 3))) (and (or (or .cse0 .cse1 (not (= 1 ~pumpRunning~0))) .cse2) (or (or .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)) .cse2))) [2019-10-07 15:19:08,734 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-07 15:19:08,734 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2019-10-07 15:19:08,734 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2019-10-07 15:19:08,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:19:08 BoogieIcfgContainer [2019-10-07 15:19:08,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 15:19:08,751 INFO L168 Benchmark]: Toolchain (without parser) took 21520.10 ms. Allocated memory was 136.8 MB in the beginning and 537.4 MB in the end (delta: 400.6 MB). Free memory was 98.7 MB in the beginning and 463.2 MB in the end (delta: -364.5 MB). Peak memory consumption was 378.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:08,752 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 118.5 MB in the beginning and 118.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:19:08,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.75 ms. Allocated memory was 136.8 MB in the beginning and 203.9 MB in the end (delta: 67.1 MB). Free memory was 98.5 MB in the beginning and 167.6 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:08,754 INFO L168 Benchmark]: Boogie Preprocessor took 129.44 ms. Allocated memory is still 203.9 MB. Free memory was 167.6 MB in the beginning and 163.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:08,755 INFO L168 Benchmark]: RCFGBuilder took 1690.77 ms. Allocated memory was 203.9 MB in the beginning and 230.7 MB in the end (delta: 26.7 MB). Free memory was 163.2 MB in the beginning and 141.0 MB in the end (delta: 22.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:08,756 INFO L168 Benchmark]: TraceAbstraction took 18875.38 ms. Allocated memory was 230.7 MB in the beginning and 537.4 MB in the end (delta: 306.7 MB). Free memory was 139.5 MB in the beginning and 463.2 MB in the end (delta: -323.7 MB). Peak memory consumption was 324.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:08,760 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 118.5 MB in the beginning and 118.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 819.75 ms. Allocated memory was 136.8 MB in the beginning and 203.9 MB in the end (delta: 67.1 MB). Free memory was 98.5 MB in the beginning and 167.6 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.44 ms. Allocated memory is still 203.9 MB. Free memory was 167.6 MB in the beginning and 163.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1690.77 ms. Allocated memory was 203.9 MB in the beginning and 230.7 MB in the end (delta: 26.7 MB). Free memory was 163.2 MB in the beginning and 141.0 MB in the end (delta: 22.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18875.38 ms. Allocated memory was 230.7 MB in the beginning and 537.4 MB in the end (delta: 306.7 MB). Free memory was 139.5 MB in the beginning and 463.2 MB in the end (delta: -323.7 MB). Peak memory consumption was 324.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: ((((((!(\old(systemActive) == 1) || ((((1 == systemActive && 1 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || !(0 == \old(pumpRunning))) || (((((1 == systemActive && !(waterLevel == 2)) && 0 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || ((((1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || ((((1 == systemActive && 1 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 206 locations, 1 error locations. Result: SAFE, OverallTime: 18.7s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, HoareTripleCheckerStatistics: 1889 SDtfs, 1689 SDslu, 6681 SDs, 0 SdLazy, 3266 SolverSat, 899 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 902 GetRequests, 759 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1620occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 280 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 72 LocationsWithAnnotation, 3518 PreInvPairs, 3664 NumberOfFragments, 1891 HoareAnnotationTreeSize, 3518 FomulaSimplifications, 7702 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 72 FomulaSimplificationsInter, 21445 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1297 NumberOfCodeBlocks, 1297 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1648 ConstructedInterpolants, 0 QuantifiedInterpolants, 330575 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2546 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 244/264 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...