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-f4eb214f-m [2019-10-13 23:16:20,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:16:20,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:16:20,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:16:20,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:16:20,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:16:20,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:16:20,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:16:20,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:16:20,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:16:20,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:16:20,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:16:20,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:16:20,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:16:20,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:16:20,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:16:20,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:16:20,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:16:20,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:16:20,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:16:20,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:16:20,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:16:20,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:16:20,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:16:20,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:16:20,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:16:20,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:16:20,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:16:20,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:16:20,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:16:20,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:16:20,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:16:20,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:16:20,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:16:20,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:16:20,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:16:20,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:16:20,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:16:20,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:16:20,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:16:20,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:16:20,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:16:21,005 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:16:21,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:16:21,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:16:21,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:16:21,007 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:16:21,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:16:21,010 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:16:21,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:16:21,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:16:21,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:16:21,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:16:21,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:16:21,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:16:21,012 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:16:21,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:16:21,013 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:16:21,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:16:21,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:16:21,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:16:21,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:16:21,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:16:21,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:16:21,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:16:21,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:16:21,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:16:21,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:16:21,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:16:21,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:16:21,016 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 [2019-10-13 23:16:21,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:16:21,321 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:16:21,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:16:21,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:16:21,330 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:16:21,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2019-10-13 23:16:21,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a465ba65/c9133b411a03440abbfb7440f7593940/FLAG97a55737f [2019-10-13 23:16:21,968 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:16:21,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2019-10-13 23:16:21,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a465ba65/c9133b411a03440abbfb7440f7593940/FLAG97a55737f [2019-10-13 23:16:22,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a465ba65/c9133b411a03440abbfb7440f7593940 [2019-10-13 23:16:22,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:16:22,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:16:22,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:22,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:16:22,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:16:22,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:22" (1/1) ... [2019-10-13 23:16:22,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6748c9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22, skipping insertion in model container [2019-10-13 23:16:22,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:22" (1/1) ... [2019-10-13 23:16:22,283 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:16:22,336 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:16:22,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:22,768 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:16:22,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:22,928 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:16:22,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22 WrapperNode [2019-10-13 23:16:22,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:22,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:16:22,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:16:22,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:16:22,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22" (1/1) ... [2019-10-13 23:16:22,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22" (1/1) ... [2019-10-13 23:16:22,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22" (1/1) ... [2019-10-13 23:16:22,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22" (1/1) ... [2019-10-13 23:16:22,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22" (1/1) ... [2019-10-13 23:16:23,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22" (1/1) ... [2019-10-13 23:16:23,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22" (1/1) ... [2019-10-13 23:16:23,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:16:23,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:16:23,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:16:23,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:16:23,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:16:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:16:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:16:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:16:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-13 23:16:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:16:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:16:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:16:23,100 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:16:23,100 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:16:23,100 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:16:23,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:16:23,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:16:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:16:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:16:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:16:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:16:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:16:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:16:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:16:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:16:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:16:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:16:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:16:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:16:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:16:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:16:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:16:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:16:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:16:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:16:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:16:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:16:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:16:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:16:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:16:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-13 23:16:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:16:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:16:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:16:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:16:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:16:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:16:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:16:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:16:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:16:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:16:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:16:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:16:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:16:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:16:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:16:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:16:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:16:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:16:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:16:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:16:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:16:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:16:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:16:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:16:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:16:24,947 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:16:24,947 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:16:24,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:16:24 BoogieIcfgContainer [2019-10-13 23:16:24,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:16:24,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:16:24,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:16:24,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:16:24,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:16:22" (1/3) ... [2019-10-13 23:16:24,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a528c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:16:24, skipping insertion in model container [2019-10-13 23:16:24,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:22" (2/3) ... [2019-10-13 23:16:24,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a528c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:16:24, skipping insertion in model container [2019-10-13 23:16:24,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:16:24" (3/3) ... [2019-10-13 23:16:24,958 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2019-10-13 23:16:24,968 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:16:24,978 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:16:24,989 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:16:25,022 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:16:25,022 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:16:25,022 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:16:25,022 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:16:25,024 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:16:25,025 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:16:25,025 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:16:25,025 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:16:25,053 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2019-10-13 23:16:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 23:16:25,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:25,064 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:25,066 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:25,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:25,072 INFO L82 PathProgramCache]: Analyzing trace with hash -855549024, now seen corresponding path program 1 times [2019-10-13 23:16:25,083 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:25,083 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248243864] [2019-10-13 23:16:25,084 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:25,084 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:25,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:25,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:25,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248243864] [2019-10-13 23:16:25,492 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:25,493 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:16:25,494 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118851576] [2019-10-13 23:16:25,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:16:25,507 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:25,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:16:25,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:16:25,536 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2019-10-13 23:16:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:25,625 INFO L93 Difference]: Finished difference Result 271 states and 330 transitions. [2019-10-13 23:16:25,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:16:25,627 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2019-10-13 23:16:25,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:25,644 INFO L225 Difference]: With dead ends: 271 [2019-10-13 23:16:25,644 INFO L226 Difference]: Without dead ends: 136 [2019-10-13 23:16:25,654 INFO L600 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 [2019-10-13 23:16:25,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-13 23:16:25,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-10-13 23:16:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-13 23:16:25,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2019-10-13 23:16:25,731 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 47 [2019-10-13 23:16:25,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:25,731 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2019-10-13 23:16:25,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:16:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2019-10-13 23:16:25,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-13 23:16:25,735 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:25,736 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:25,736 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:25,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1912018837, now seen corresponding path program 1 times [2019-10-13 23:16:25,737 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:25,737 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097660585] [2019-10-13 23:16:25,737 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:25,737 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:25,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:25,895 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097660585] [2019-10-13 23:16:25,896 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:25,896 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:16:25,896 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229054294] [2019-10-13 23:16:25,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:16:25,900 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:25,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:16:25,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:16:25,901 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 3 states. [2019-10-13 23:16:25,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:25,944 INFO L93 Difference]: Finished difference Result 225 states and 264 transitions. [2019-10-13 23:16:25,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:16:25,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-10-13 23:16:25,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:25,950 INFO L225 Difference]: With dead ends: 225 [2019-10-13 23:16:25,950 INFO L226 Difference]: Without dead ends: 128 [2019-10-13 23:16:25,956 INFO L600 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 [2019-10-13 23:16:25,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-13 23:16:25,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-13 23:16:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-13 23:16:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2019-10-13 23:16:25,990 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 48 [2019-10-13 23:16:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:25,990 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2019-10-13 23:16:25,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:16:25,991 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2019-10-13 23:16:25,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:16:25,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:26,002 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:26,002 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:26,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash 385099890, now seen corresponding path program 1 times [2019-10-13 23:16:26,003 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:26,004 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097164522] [2019-10-13 23:16:26,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:26,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:26,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:26,240 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097164522] [2019-10-13 23:16:26,240 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:26,241 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:16:26,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064380938] [2019-10-13 23:16:26,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:16:26,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:26,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:16:26,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:16:26,243 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 7 states. [2019-10-13 23:16:26,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:26,651 INFO L93 Difference]: Finished difference Result 234 states and 275 transitions. [2019-10-13 23:16:26,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:16:26,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-13 23:16:26,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:26,654 INFO L225 Difference]: With dead ends: 234 [2019-10-13 23:16:26,654 INFO L226 Difference]: Without dead ends: 128 [2019-10-13 23:16:26,657 INFO L600 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 [2019-10-13 23:16:26,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-13 23:16:26,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-13 23:16:26,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-13 23:16:26,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2019-10-13 23:16:26,681 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 51 [2019-10-13 23:16:26,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:26,682 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2019-10-13 23:16:26,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:16:26,682 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2019-10-13 23:16:26,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-13 23:16:26,686 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:26,687 INFO L380 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] [2019-10-13 23:16:26,687 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:26,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:26,687 INFO L82 PathProgramCache]: Analyzing trace with hash 882274702, now seen corresponding path program 1 times [2019-10-13 23:16:26,688 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:26,688 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128629986] [2019-10-13 23:16:26,688 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:26,689 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:26,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:26,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:16:26,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128629986] [2019-10-13 23:16:26,820 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:26,821 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:16:26,821 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583783221] [2019-10-13 23:16:26,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:16:26,822 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:26,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:16:26,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:16:26,822 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 5 states. [2019-10-13 23:16:27,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:27,424 INFO L93 Difference]: Finished difference Result 346 states and 412 transitions. [2019-10-13 23:16:27,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:16:27,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-10-13 23:16:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:27,431 INFO L225 Difference]: With dead ends: 346 [2019-10-13 23:16:27,431 INFO L226 Difference]: Without dead ends: 240 [2019-10-13 23:16:27,432 INFO L600 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 [2019-10-13 23:16:27,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2019-10-13 23:16:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 223. [2019-10-13 23:16:27,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-10-13 23:16:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 248 transitions. [2019-10-13 23:16:27,467 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 248 transitions. Word has length 68 [2019-10-13 23:16:27,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:27,468 INFO L462 AbstractCegarLoop]: Abstraction has 223 states and 248 transitions. [2019-10-13 23:16:27,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:16:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 248 transitions. [2019-10-13 23:16:27,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 23:16:27,469 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:27,469 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:27,470 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:27,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:27,470 INFO L82 PathProgramCache]: Analyzing trace with hash 218550541, now seen corresponding path program 1 times [2019-10-13 23:16:27,470 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:27,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596487005] [2019-10-13 23:16:27,471 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:27,471 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:27,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:27,606 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596487005] [2019-10-13 23:16:27,607 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:27,607 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:16:27,607 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677754141] [2019-10-13 23:16:27,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:16:27,608 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:27,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:16:27,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:16:27,609 INFO L87 Difference]: Start difference. First operand 223 states and 248 transitions. Second operand 6 states. [2019-10-13 23:16:27,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:27,821 INFO L93 Difference]: Finished difference Result 546 states and 623 transitions. [2019-10-13 23:16:27,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:16:27,824 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2019-10-13 23:16:27,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:27,829 INFO L225 Difference]: With dead ends: 546 [2019-10-13 23:16:27,830 INFO L226 Difference]: Without dead ends: 345 [2019-10-13 23:16:27,831 INFO L600 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 [2019-10-13 23:16:27,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-10-13 23:16:27,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 335. [2019-10-13 23:16:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-10-13 23:16:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 376 transitions. [2019-10-13 23:16:27,890 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 376 transitions. Word has length 78 [2019-10-13 23:16:27,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:27,891 INFO L462 AbstractCegarLoop]: Abstraction has 335 states and 376 transitions. [2019-10-13 23:16:27,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:16:27,891 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 376 transitions. [2019-10-13 23:16:27,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-13 23:16:27,893 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:27,893 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:27,893 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:27,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:27,894 INFO L82 PathProgramCache]: Analyzing trace with hash 313023912, now seen corresponding path program 1 times [2019-10-13 23:16:27,894 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:27,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060496716] [2019-10-13 23:16:27,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:27,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:27,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:28,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060496716] [2019-10-13 23:16:28,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:28,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:16:28,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941881542] [2019-10-13 23:16:28,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:16:28,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:28,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:16:28,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:16:28,253 INFO L87 Difference]: Start difference. First operand 335 states and 376 transitions. Second operand 14 states. [2019-10-13 23:16:28,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:28,744 INFO L93 Difference]: Finished difference Result 665 states and 766 transitions. [2019-10-13 23:16:28,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:16:28,745 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2019-10-13 23:16:28,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:28,754 INFO L225 Difference]: With dead ends: 665 [2019-10-13 23:16:28,756 INFO L226 Difference]: Without dead ends: 464 [2019-10-13 23:16:28,758 INFO L600 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 [2019-10-13 23:16:28,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-13 23:16:28,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 444. [2019-10-13 23:16:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2019-10-13 23:16:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 506 transitions. [2019-10-13 23:16:28,817 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 506 transitions. Word has length 81 [2019-10-13 23:16:28,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:28,819 INFO L462 AbstractCegarLoop]: Abstraction has 444 states and 506 transitions. [2019-10-13 23:16:28,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:16:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 506 transitions. [2019-10-13 23:16:28,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-13 23:16:28,824 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:28,824 INFO L380 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] [2019-10-13 23:16:28,824 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:28,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:28,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1956980434, now seen corresponding path program 1 times [2019-10-13 23:16:28,825 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:28,825 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277053447] [2019-10-13 23:16:28,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:28,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:28,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:28,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:16:28,955 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277053447] [2019-10-13 23:16:28,955 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066578965] [2019-10-13 23:16:28,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:29,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-13 23:16:29,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:16:29,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:29,374 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:16:29,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:16:29,923 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:16:29,923 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2019-10-13 23:16:29,924 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449988505] [2019-10-13 23:16:29,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:16:29,927 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:29,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:16:29,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:16:29,929 INFO L87 Difference]: Start difference. First operand 444 states and 506 transitions. Second operand 8 states. [2019-10-13 23:16:30,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:30,632 INFO L93 Difference]: Finished difference Result 1267 states and 1475 transitions. [2019-10-13 23:16:30,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:16:30,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2019-10-13 23:16:30,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:30,643 INFO L225 Difference]: With dead ends: 1267 [2019-10-13 23:16:30,643 INFO L226 Difference]: Without dead ends: 845 [2019-10-13 23:16:30,646 INFO L600 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 [2019-10-13 23:16:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-13 23:16:30,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 830. [2019-10-13 23:16:30,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2019-10-13 23:16:30,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 950 transitions. [2019-10-13 23:16:30,709 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 950 transitions. Word has length 91 [2019-10-13 23:16:30,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:30,709 INFO L462 AbstractCegarLoop]: Abstraction has 830 states and 950 transitions. [2019-10-13 23:16:30,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:16:30,710 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 950 transitions. [2019-10-13 23:16:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 23:16:30,712 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:30,712 INFO L380 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] [2019-10-13 23:16:30,917 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:30,918 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:30,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:30,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1214498269, now seen corresponding path program 1 times [2019-10-13 23:16:30,919 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:30,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007685476] [2019-10-13 23:16:30,919 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:30,919 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:30,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:16:31,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007685476] [2019-10-13 23:16:31,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:31,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:16:31,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508071291] [2019-10-13 23:16:31,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:16:31,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:31,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:16:31,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:16:31,079 INFO L87 Difference]: Start difference. First operand 830 states and 950 transitions. Second operand 12 states. [2019-10-13 23:16:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:32,932 INFO L93 Difference]: Finished difference Result 1655 states and 1929 transitions. [2019-10-13 23:16:32,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:16:32,933 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2019-10-13 23:16:32,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:32,941 INFO L225 Difference]: With dead ends: 1655 [2019-10-13 23:16:32,941 INFO L226 Difference]: Without dead ends: 1233 [2019-10-13 23:16:32,943 INFO L600 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 [2019-10-13 23:16:32,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2019-10-13 23:16:33,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1199. [2019-10-13 23:16:33,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2019-10-13 23:16:33,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1369 transitions. [2019-10-13 23:16:33,015 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1369 transitions. Word has length 94 [2019-10-13 23:16:33,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:33,016 INFO L462 AbstractCegarLoop]: Abstraction has 1199 states and 1369 transitions. [2019-10-13 23:16:33,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:16:33,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1369 transitions. [2019-10-13 23:16:33,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 23:16:33,018 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:33,018 INFO L380 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] [2019-10-13 23:16:33,019 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:33,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:33,019 INFO L82 PathProgramCache]: Analyzing trace with hash 393718867, now seen corresponding path program 1 times [2019-10-13 23:16:33,019 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:33,020 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80511834] [2019-10-13 23:16:33,020 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:33,020 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:33,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:16:33,133 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80511834] [2019-10-13 23:16:33,133 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:33,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:16:33,134 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081668645] [2019-10-13 23:16:33,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:16:33,135 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:33,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:16:33,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:16:33,136 INFO L87 Difference]: Start difference. First operand 1199 states and 1369 transitions. Second operand 10 states. [2019-10-13 23:16:33,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:33,489 INFO L93 Difference]: Finished difference Result 2388 states and 2729 transitions. [2019-10-13 23:16:33,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 23:16:33,490 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 94 [2019-10-13 23:16:33,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:33,498 INFO L225 Difference]: With dead ends: 2388 [2019-10-13 23:16:33,498 INFO L226 Difference]: Without dead ends: 1211 [2019-10-13 23:16:33,502 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:16:33,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2019-10-13 23:16:33,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1115. [2019-10-13 23:16:33,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2019-10-13 23:16:33,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1222 transitions. [2019-10-13 23:16:33,567 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1222 transitions. Word has length 94 [2019-10-13 23:16:33,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:33,567 INFO L462 AbstractCegarLoop]: Abstraction has 1115 states and 1222 transitions. [2019-10-13 23:16:33,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:16:33,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1222 transitions. [2019-10-13 23:16:33,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:16:33,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:33,573 INFO L380 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] [2019-10-13 23:16:33,573 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:33,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:33,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1496595950, now seen corresponding path program 1 times [2019-10-13 23:16:33,573 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:33,574 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026840737] [2019-10-13 23:16:33,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:33,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:33,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:16:33,664 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026840737] [2019-10-13 23:16:33,664 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351828923] [2019-10-13 23:16:33,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:33,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-13 23:16:33,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:16:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 23:16:34,027 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:16:34,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:34,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:34,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:34,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:34,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:16:34,533 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:16:34,533 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 21 [2019-10-13 23:16:34,533 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554087056] [2019-10-13 23:16:34,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:16:34,534 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:34,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:16:34,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:16:34,535 INFO L87 Difference]: Start difference. First operand 1115 states and 1222 transitions. Second operand 9 states. [2019-10-13 23:16:35,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:35,091 INFO L93 Difference]: Finished difference Result 2525 states and 2814 transitions. [2019-10-13 23:16:35,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 23:16:35,092 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 132 [2019-10-13 23:16:35,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:35,103 INFO L225 Difference]: With dead ends: 2525 [2019-10-13 23:16:35,103 INFO L226 Difference]: Without dead ends: 1708 [2019-10-13 23:16:35,107 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:16:35,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2019-10-13 23:16:35,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1620. [2019-10-13 23:16:35,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1620 states. [2019-10-13 23:16:35,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 1774 transitions. [2019-10-13 23:16:35,226 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 1774 transitions. Word has length 132 [2019-10-13 23:16:35,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:35,227 INFO L462 AbstractCegarLoop]: Abstraction has 1620 states and 1774 transitions. [2019-10-13 23:16:35,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:16:35,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 1774 transitions. [2019-10-13 23:16:35,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 23:16:35,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:35,233 INFO L380 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] [2019-10-13 23:16:35,439 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:35,440 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:35,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:35,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1038300165, now seen corresponding path program 1 times [2019-10-13 23:16:35,441 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:35,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554815686] [2019-10-13 23:16:35,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:35,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:35,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:35,687 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:16:35,688 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554815686] [2019-10-13 23:16:35,688 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006666857] [2019-10-13 23:16:35,688 INFO L94 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 [2019-10-13 23:16:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:35,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-13 23:16:35,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:16:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:16:35,973 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:16:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 23:16:36,559 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:16:36,559 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 11] total 24 [2019-10-13 23:16:36,559 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993891827] [2019-10-13 23:16:36,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:16:36,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:36,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:16:36,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2019-10-13 23:16:36,563 INFO L87 Difference]: Start difference. First operand 1620 states and 1774 transitions. Second operand 11 states. [2019-10-13 23:16:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:37,370 INFO L93 Difference]: Finished difference Result 3295 states and 3754 transitions. [2019-10-13 23:16:37,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:16:37,371 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 145 [2019-10-13 23:16:37,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:37,374 INFO L225 Difference]: With dead ends: 3295 [2019-10-13 23:16:37,375 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 23:16:37,386 INFO L600 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 [2019-10-13 23:16:37,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 23:16:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 23:16:37,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 23:16:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 23:16:37,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2019-10-13 23:16:37,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:37,388 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 23:16:37,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:16:37,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 23:16:37,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 23:16:37,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:37,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 23:16:39,163 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 23 [2019-10-13 23:16:39,368 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 23 [2019-10-13 23:16:39,477 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 22 [2019-10-13 23:16:39,751 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2019-10-13 23:16:39,920 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2019-10-13 23:16:40,388 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 21 [2019-10-13 23:16:40,684 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2019-10-13 23:16:40,930 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-10-13 23:16:41,282 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 23 [2019-10-13 23:16:41,624 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2019-10-13 23:16:42,672 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 44 [2019-10-13 23:16:42,904 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 33 [2019-10-13 23:16:43,268 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 33 [2019-10-13 23:16:43,447 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2019-10-13 23:16:43,627 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2019-10-13 23:16:44,192 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 24 [2019-10-13 23:16:44,401 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-10-13 23:16:44,489 INFO L443 ceAbstractionStarter]: For program point L163-2(lines 163 184) no Hoare annotation was computed. [2019-10-13 23:16:44,490 INFO L443 ceAbstractionStarter]: For program point L185(lines 162 186) no Hoare annotation was computed. [2019-10-13 23:16:44,490 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 173) no Hoare annotation was computed. [2019-10-13 23:16:44,490 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 138 193) no Hoare annotation was computed. [2019-10-13 23:16:44,490 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 138 193) no Hoare annotation was computed. [2019-10-13 23:16:44,490 INFO L443 ceAbstractionStarter]: For program point L220-2(lines 220 245) no Hoare annotation was computed. [2019-10-13 23:16:44,490 INFO L443 ceAbstractionStarter]: For program point L246(lines 219 247) no Hoare annotation was computed. [2019-10-13 23:16:44,490 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 194 253) no Hoare annotation was computed. [2019-10-13 23:16:44,490 INFO L443 ceAbstractionStarter]: For program point L239(line 239) no Hoare annotation was computed. [2019-10-13 23:16:44,491 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 194 253) no Hoare annotation was computed. [2019-10-13 23:16:44,491 INFO L443 ceAbstractionStarter]: For program point L239-1(line 239) no Hoare annotation was computed. [2019-10-13 23:16:44,491 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 194 253) no Hoare annotation was computed. [2019-10-13 23:16:44,491 INFO L443 ceAbstractionStarter]: For program point L226(lines 226 230) no Hoare annotation was computed. [2019-10-13 23:16:44,491 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 582 588) the Hoare annotation is: true [2019-10-13 23:16:44,491 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 582 588) no Hoare annotation was computed. [2019-10-13 23:16:44,491 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 589 597) no Hoare annotation was computed. [2019-10-13 23:16:44,492 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 589 597) the Hoare annotation is: true [2019-10-13 23:16:44,492 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))) [2019-10-13 23:16:44,492 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 992 1014) no Hoare annotation was computed. [2019-10-13 23:16:44,492 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))) [2019-10-13 23:16:44,492 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))) [2019-10-13 23:16:44,492 INFO L443 ceAbstractionStarter]: For program point L1002(lines 1002 1009) no Hoare annotation was computed. [2019-10-13 23:16:44,493 INFO L443 ceAbstractionStarter]: For program point L1002-1(lines 1002 1009) no Hoare annotation was computed. [2019-10-13 23:16:44,493 INFO L443 ceAbstractionStarter]: For program point L1000(line 1000) no Hoare annotation was computed. [2019-10-13 23:16:44,493 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))) [2019-10-13 23:16:44,493 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))) [2019-10-13 23:16:44,496 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))) [2019-10-13 23:16:44,496 INFO L443 ceAbstractionStarter]: For program point L961(line 961) no Hoare annotation was computed. [2019-10-13 23:16:44,496 INFO L443 ceAbstractionStarter]: For program point L960(line 960) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 951 974) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point L959(line 959) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point L958(line 958) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point L957(line 957) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 951 974) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point L956(line 956) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 951 974) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point L969(line 969) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point L968(line 968) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point L967(line 967) no Hoare annotation was computed. [2019-10-13 23:16:44,497 INFO L443 ceAbstractionStarter]: For program point L966(line 966) no Hoare annotation was computed. [2019-10-13 23:16:44,498 INFO L443 ceAbstractionStarter]: For program point L965(line 965) no Hoare annotation was computed. [2019-10-13 23:16:44,498 INFO L443 ceAbstractionStarter]: For program point L964(line 964) no Hoare annotation was computed. [2019-10-13 23:16:44,498 INFO L443 ceAbstractionStarter]: For program point L963(line 963) no Hoare annotation was computed. [2019-10-13 23:16:44,498 INFO L443 ceAbstractionStarter]: For program point L962(line 962) no Hoare annotation was computed. [2019-10-13 23:16:44,498 INFO L443 ceAbstractionStarter]: For program point L673(lines 673 681) no Hoare annotation was computed. [2019-10-13 23:16:44,498 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))) [2019-10-13 23:16:44,498 INFO L443 ceAbstractionStarter]: For program point L671-1(line 671) no Hoare annotation was computed. [2019-10-13 23:16:44,498 INFO L443 ceAbstractionStarter]: For program point L669(lines 669 686) no Hoare annotation was computed. [2019-10-13 23:16:44,498 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))) [2019-10-13 23:16:44,498 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))) [2019-10-13 23:16:44,499 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 665 689) no Hoare annotation was computed. [2019-10-13 23:16:44,499 INFO L443 ceAbstractionStarter]: For program point L684-1(lines 665 689) no Hoare annotation was computed. [2019-10-13 23:16:44,499 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))) [2019-10-13 23:16:44,499 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))) [2019-10-13 23:16:44,499 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 760 768) no Hoare annotation was computed. [2019-10-13 23:16:44,501 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 760 768) the Hoare annotation is: true [2019-10-13 23:16:44,501 INFO L446 ceAbstractionStarter]: At program point L831(line 831) the Hoare annotation is: true [2019-10-13 23:16:44,501 INFO L443 ceAbstractionStarter]: For program point L831-1(line 831) no Hoare annotation was computed. [2019-10-13 23:16:44,502 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 824 842) the Hoare annotation is: true [2019-10-13 23:16:44,502 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 824 842) no Hoare annotation was computed. [2019-10-13 23:16:44,502 INFO L443 ceAbstractionStarter]: For program point L799(line 799) no Hoare annotation was computed. [2019-10-13 23:16:44,502 INFO L443 ceAbstractionStarter]: For program point L799-1(line 799) no Hoare annotation was computed. [2019-10-13 23:16:44,502 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 769 804) no Hoare annotation was computed. [2019-10-13 23:16:44,502 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 769 804) no Hoare annotation was computed. [2019-10-13 23:16:44,502 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 575 581) no Hoare annotation was computed. [2019-10-13 23:16:44,503 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 575 581) the Hoare annotation is: true [2019-10-13 23:16:44,503 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 92 137) no Hoare annotation was computed. [2019-10-13 23:16:44,503 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 92 137) no Hoare annotation was computed. [2019-10-13 23:16:44,503 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 405 450) no Hoare annotation was computed. [2019-10-13 23:16:44,503 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 405 450) no Hoare annotation was computed. [2019-10-13 23:16:44,503 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))) [2019-10-13 23:16:44,503 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 982 991) no Hoare annotation was computed. [2019-10-13 23:16:44,504 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 982 991) no Hoare annotation was computed. [2019-10-13 23:16:44,504 INFO L443 ceAbstractionStarter]: For program point L754-1(line 754) no Hoare annotation was computed. [2019-10-13 23:16:44,504 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 749 759) the Hoare annotation is: true [2019-10-13 23:16:44,504 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 749 759) no Hoare annotation was computed. [2019-10-13 23:16:44,504 INFO L446 ceAbstractionStarter]: At program point L754(line 754) the Hoare annotation is: true [2019-10-13 23:16:44,504 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))) [2019-10-13 23:16:44,505 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 741 748) no Hoare annotation was computed. [2019-10-13 23:16:44,505 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 537 550) no Hoare annotation was computed. [2019-10-13 23:16:44,505 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 537 550) the Hoare annotation is: true [2019-10-13 23:16:44,505 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))) [2019-10-13 23:16:44,505 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))) [2019-10-13 23:16:44,505 INFO L443 ceAbstractionStarter]: For program point L699(lines 699 707) no Hoare annotation was computed. [2019-10-13 23:16:44,506 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))) [2019-10-13 23:16:44,506 INFO L443 ceAbstractionStarter]: For program point L697-1(line 697) no Hoare annotation was computed. [2019-10-13 23:16:44,506 INFO L443 ceAbstractionStarter]: For program point L695(lines 695 712) no Hoare annotation was computed. [2019-10-13 23:16:44,506 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 691 715) no Hoare annotation was computed. [2019-10-13 23:16:44,506 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))) [2019-10-13 23:16:44,506 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))) [2019-10-13 23:16:44,507 INFO L443 ceAbstractionStarter]: For program point L710-1(lines 691 715) no Hoare annotation was computed. [2019-10-13 23:16:44,507 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 631 637) no Hoare annotation was computed. [2019-10-13 23:16:44,507 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 631 637) the Hoare annotation is: true [2019-10-13 23:16:44,507 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))) [2019-10-13 23:16:44,507 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 853 918) no Hoare annotation was computed. [2019-10-13 23:16:44,507 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))) [2019-10-13 23:16:44,508 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)))) [2019-10-13 23:16:44,508 INFO L443 ceAbstractionStarter]: For program point L864(lines 863 910) no Hoare annotation was computed. [2019-10-13 23:16:44,508 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)))) [2019-10-13 23:16:44,508 INFO L443 ceAbstractionStarter]: For program point L893(lines 893 906) no Hoare annotation was computed. [2019-10-13 23:16:44,508 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)))) [2019-10-13 23:16:44,509 INFO L443 ceAbstractionStarter]: For program point L883(lines 883 889) no Hoare annotation was computed. [2019-10-13 23:16:44,509 INFO L443 ceAbstractionStarter]: For program point L883-1(lines 883 889) no Hoare annotation was computed. [2019-10-13 23:16:44,509 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)))) [2019-10-13 23:16:44,509 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))))) [2019-10-13 23:16:44,510 INFO L443 ceAbstractionStarter]: For program point L873(lines 873 879) no Hoare annotation was computed. [2019-10-13 23:16:44,510 INFO L443 ceAbstractionStarter]: For program point L873-1(lines 873 879) no Hoare annotation was computed. [2019-10-13 23:16:44,510 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 853 918) no Hoare annotation was computed. [2019-10-13 23:16:44,510 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 359 404) no Hoare annotation was computed. [2019-10-13 23:16:44,510 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 359 404) no Hoare annotation was computed. [2019-10-13 23:16:44,510 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)) [2019-10-13 23:16:44,510 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 716 723) no Hoare annotation was computed. [2019-10-13 23:16:44,511 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 551 559) the Hoare annotation is: true [2019-10-13 23:16:44,511 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 551 559) no Hoare annotation was computed. [2019-10-13 23:16:44,511 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 505 527) no Hoare annotation was computed. [2019-10-13 23:16:44,511 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 505 527) no Hoare annotation was computed. [2019-10-13 23:16:44,511 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 256 358) no Hoare annotation was computed. [2019-10-13 23:16:44,511 INFO L443 ceAbstractionStarter]: For program point L285(lines 285 301) no Hoare annotation was computed. [2019-10-13 23:16:44,511 INFO L443 ceAbstractionStarter]: For program point L306(lines 305 325) no Hoare annotation was computed. [2019-10-13 23:16:44,512 INFO L443 ceAbstractionStarter]: For program point L337(line 337) no Hoare annotation was computed. [2019-10-13 23:16:44,512 INFO L443 ceAbstractionStarter]: For program point L337-1(line 337) no Hoare annotation was computed. [2019-10-13 23:16:44,512 INFO L443 ceAbstractionStarter]: For program point L302(lines 302 343) no Hoare annotation was computed. [2019-10-13 23:16:44,512 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 256 358) no Hoare annotation was computed. [2019-10-13 23:16:44,512 INFO L443 ceAbstractionStarter]: For program point L321(line 321) no Hoare annotation was computed. [2019-10-13 23:16:44,512 INFO L443 ceAbstractionStarter]: For program point L321-1(line 321) no Hoare annotation was computed. [2019-10-13 23:16:44,512 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 284) no Hoare annotation was computed. [2019-10-13 23:16:44,512 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 256 358) no Hoare annotation was computed. [2019-10-13 23:16:44,513 INFO L443 ceAbstractionStarter]: For program point L305-2(lines 305 325) no Hoare annotation was computed. [2019-10-13 23:16:44,513 INFO L443 ceAbstractionStarter]: For program point L326(lines 304 327) no Hoare annotation was computed. [2019-10-13 23:16:44,513 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 565 574) no Hoare annotation was computed. [2019-10-13 23:16:44,513 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 565 574) no Hoare annotation was computed. [2019-10-13 23:16:44,513 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)|)) [2019-10-13 23:16:44,513 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 23:16:44,514 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))) [2019-10-13 23:16:44,514 INFO L443 ceAbstractionStarter]: For program point L735-1(lines 724 740) no Hoare annotation was computed. [2019-10-13 23:16:44,514 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 724 740) no Hoare annotation was computed. [2019-10-13 23:16:44,514 INFO L443 ceAbstractionStarter]: For program point L731(lines 731 737) no Hoare annotation was computed. [2019-10-13 23:16:44,514 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)) [2019-10-13 23:16:44,514 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)) [2019-10-13 23:16:44,514 INFO L443 ceAbstractionStarter]: For program point L729-1(line 729) no Hoare annotation was computed. [2019-10-13 23:16:44,515 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 528 536) the Hoare annotation is: true [2019-10-13 23:16:44,515 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 528 536) no Hoare annotation was computed. [2019-10-13 23:16:44,515 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 805 823) no Hoare annotation was computed. [2019-10-13 23:16:44,515 INFO L446 ceAbstractionStarter]: At program point L812(line 812) the Hoare annotation is: true [2019-10-13 23:16:44,515 INFO L443 ceAbstractionStarter]: For program point L812-1(line 812) no Hoare annotation was computed. [2019-10-13 23:16:44,515 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 805 823) the Hoare annotation is: true [2019-10-13 23:16:44,515 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 23:16:44,516 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 23:16:44,516 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))))))) [2019-10-13 23:16:44,516 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 484 495) no Hoare annotation was computed. [2019-10-13 23:16:44,516 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 496 504) the Hoare annotation is: true [2019-10-13 23:16:44,516 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 496 504) no Hoare annotation was computed. [2019-10-13 23:16:44,516 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))))) [2019-10-13 23:16:44,517 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))))) [2019-10-13 23:16:44,517 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 607 630) no Hoare annotation was computed. [2019-10-13 23:16:44,518 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)))) [2019-10-13 23:16:44,518 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 607 630) no Hoare annotation was computed. [2019-10-13 23:16:44,518 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))))) [2019-10-13 23:16:44,518 INFO L443 ceAbstractionStarter]: For program point L611(lines 610 629) no Hoare annotation was computed. [2019-10-13 23:16:44,519 INFO L446 ceAbstractionStarter]: At program point L931-2(lines 931 945) the Hoare annotation is: true [2019-10-13 23:16:44,519 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 921 950) no Hoare annotation was computed. [2019-10-13 23:16:44,519 INFO L446 ceAbstractionStarter]: At program point L927(line 927) the Hoare annotation is: true [2019-10-13 23:16:44,519 INFO L443 ceAbstractionStarter]: For program point L927-1(line 927) no Hoare annotation was computed. [2019-10-13 23:16:44,519 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 921 950) the Hoare annotation is: true [2019-10-13 23:16:44,519 INFO L446 ceAbstractionStarter]: At program point L946(lines 921 950) the Hoare annotation is: true [2019-10-13 23:16:44,519 INFO L443 ceAbstractionStarter]: For program point L942(line 942) no Hoare annotation was computed. [2019-10-13 23:16:44,519 INFO L443 ceAbstractionStarter]: For program point L935(lines 935 939) no Hoare annotation was computed. [2019-10-13 23:16:44,520 INFO L446 ceAbstractionStarter]: At program point L935-1(lines 935 939) the Hoare annotation is: true [2019-10-13 23:16:44,520 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))) [2019-10-13 23:16:44,520 INFO L443 ceAbstractionStarter]: For program point L65-1(line 65) no Hoare annotation was computed. [2019-10-13 23:16:44,520 INFO L443 ceAbstractionStarter]: For program point L61(lines 61 81) no Hoare annotation was computed. [2019-10-13 23:16:44,520 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 52 84) no Hoare annotation was computed. [2019-10-13 23:16:44,520 INFO L446 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: true [2019-10-13 23:16:44,521 INFO L443 ceAbstractionStarter]: For program point L59-1(line 59) no Hoare annotation was computed. [2019-10-13 23:16:44,521 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 52 84) the Hoare annotation is: true [2019-10-13 23:16:44,521 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))) [2019-10-13 23:16:44,521 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 77) no Hoare annotation was computed. [2019-10-13 23:16:44,521 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))) [2019-10-13 23:16:44,521 INFO L443 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2019-10-13 23:16:44,522 INFO L443 ceAbstractionStarter]: For program point L67(lines 67 80) no Hoare annotation was computed. [2019-10-13 23:16:44,522 INFO L443 ceAbstractionStarter]: For program point L67-1(lines 52 84) no Hoare annotation was computed. [2019-10-13 23:16:44,522 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)))) [2019-10-13 23:16:44,522 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 460 471) no Hoare annotation was computed. [2019-10-13 23:16:44,523 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 975 981) no Hoare annotation was computed. [2019-10-13 23:16:44,523 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 975 981) the Hoare annotation is: true [2019-10-13 23:16:44,523 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 23:16:44,524 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)) [2019-10-13 23:16:44,524 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 23:16:44,524 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 23:16:44,524 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 843 850) no Hoare annotation was computed. [2019-10-13 23:16:44,524 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))) [2019-10-13 23:16:44,524 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))) [2019-10-13 23:16:44,524 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 639 663) no Hoare annotation was computed. [2019-10-13 23:16:44,525 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))) [2019-10-13 23:16:44,526 INFO L443 ceAbstractionStarter]: For program point L658-1(lines 639 663) no Hoare annotation was computed. [2019-10-13 23:16:44,526 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))) [2019-10-13 23:16:44,526 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))) [2019-10-13 23:16:44,526 INFO L443 ceAbstractionStarter]: For program point L647(lines 647 655) no Hoare annotation was computed. [2019-10-13 23:16:44,527 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))) [2019-10-13 23:16:44,527 INFO L443 ceAbstractionStarter]: For program point L645-1(line 645) no Hoare annotation was computed. [2019-10-13 23:16:44,527 INFO L443 ceAbstractionStarter]: For program point L643(lines 643 660) no Hoare annotation was computed. [2019-10-13 23:16:44,527 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 472 483) no Hoare annotation was computed. [2019-10-13 23:16:44,527 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))) [2019-10-13 23:16:44,527 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-13 23:16:44,527 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2019-10-13 23:16:44,528 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2019-10-13 23:16:44,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:16:44 BoogieIcfgContainer [2019-10-13 23:16:44,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 23:16:44,549 INFO L168 Benchmark]: Toolchain (without parser) took 22279.27 ms. Allocated memory was 138.9 MB in the beginning and 555.7 MB in the end (delta: 416.8 MB). Free memory was 101.6 MB in the beginning and 334.7 MB in the end (delta: -233.1 MB). Peak memory consumption was 376.4 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:44,550 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-13 23:16:44,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.07 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 169.2 MB in the end (delta: -67.8 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:44,551 INFO L168 Benchmark]: Boogie Preprocessor took 92.56 ms. Allocated memory is still 202.9 MB. Free memory was 169.2 MB in the beginning and 164.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:44,552 INFO L168 Benchmark]: RCFGBuilder took 1926.78 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.6 MB in the beginning and 139.8 MB in the end (delta: 24.8 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:44,553 INFO L168 Benchmark]: TraceAbstraction took 19596.84 ms. Allocated memory was 235.9 MB in the beginning and 555.7 MB in the end (delta: 319.8 MB). Free memory was 139.8 MB in the beginning and 334.7 MB in the end (delta: -194.9 MB). Peak memory consumption was 317.6 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:44,557 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.07 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 169.2 MB in the end (delta: -67.8 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.56 ms. Allocated memory is still 202.9 MB. Free memory was 169.2 MB in the beginning and 164.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1926.78 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.6 MB in the beginning and 139.8 MB in the end (delta: 24.8 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19596.84 ms. Allocated memory was 235.9 MB in the beginning and 555.7 MB in the end (delta: 319.8 MB). Free memory was 139.8 MB in the beginning and 334.7 MB in the end (delta: -194.9 MB). Peak memory consumption was 317.6 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: 19.5s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, HoareTripleCheckerStatistics: 1889 SDtfs, 1689 SDslu, 6681 SDs, 0 SdLazy, 3266 SolverSat, 899 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s 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: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 280 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 72 LocationsWithAnnotation, 3518 PreInvPairs, 3664 NumberOfFragments, 1891 HoareAnnotationTreeSize, 3518 FomulaSimplifications, 7702 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 72 FomulaSimplificationsInter, 21445 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.4s 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...