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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:20:03,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:20:03,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:20:03,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:20:03,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:20:03,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:20:03,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:20:03,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:20:03,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:20:03,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:20:03,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:20:03,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:20:03,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:20:03,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:20:03,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:20:03,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:20:03,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:20:03,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:20:03,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:20:03,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:20:03,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:20:03,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:20:03,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:20:03,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:20:03,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:20:03,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:20:03,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:20:03,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:20:03,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:20:03,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:20:03,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:20:03,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:20:03,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:20:03,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:20:03,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:20:03,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:20:03,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:20:03,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:20:03,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:20:03,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:20:03,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:20:03,930 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 21:20:03,946 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:20:03,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:20:03,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:20:03,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:20:03,948 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:20:03,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:20:03,948 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:20:03,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:20:03,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:20:03,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:20:03,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:20:03,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:20:03,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:20:03,949 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:20:03,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:20:03,950 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:20:03,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:20:03,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:20:03,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:20:03,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:20:03,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:20:03,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:20:03,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:20:03,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:20:03,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:20:03,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:20:03,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:20:03,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:20:03,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:20:04,229 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:20:04,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:20:04,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:20:04,246 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:20:04,246 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:20:04,247 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2019-10-13 21:20:04,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f2915f4/de421c059487450383a7a35fb6b85a16/FLAG5e01e666d [2019-10-13 21:20:04,886 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:20:04,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2019-10-13 21:20:04,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f2915f4/de421c059487450383a7a35fb6b85a16/FLAG5e01e666d [2019-10-13 21:20:05,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f2915f4/de421c059487450383a7a35fb6b85a16 [2019-10-13 21:20:05,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:20:05,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:20:05,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:20:05,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:20:05,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:20:05,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:20:05" (1/1) ... [2019-10-13 21:20:05,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170a06bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05, skipping insertion in model container [2019-10-13 21:20:05,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:20:05" (1/1) ... [2019-10-13 21:20:05,192 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:20:05,258 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:20:05,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:20:05,698 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:20:05,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:20:05,855 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:20:05,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05 WrapperNode [2019-10-13 21:20:05,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:20:05,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:20:05,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:20:05,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:20:05,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05" (1/1) ... [2019-10-13 21:20:05,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05" (1/1) ... [2019-10-13 21:20:05,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05" (1/1) ... [2019-10-13 21:20:05,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05" (1/1) ... [2019-10-13 21:20:05,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05" (1/1) ... [2019-10-13 21:20:05,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05" (1/1) ... [2019-10-13 21:20:05,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05" (1/1) ... [2019-10-13 21:20:05,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:20:05,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:20:05,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:20:05,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:20:05,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05" (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 21:20:06,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:20:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:20:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:20:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 21:20:06,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:20:06,033 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:20:06,033 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:20:06,033 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:20:06,034 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:20:06,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:20:06,034 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:20:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:20:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:20:06,036 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:20:06,036 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:20:06,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:20:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:20:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:20:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 21:20:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:20:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 21:20:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:20:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:20:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:20:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:20:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:20:06,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:20:06,042 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 21:20:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:20:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:20:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:20:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:20:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:20:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:20:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:20:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:20:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:20:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:20:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:20:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:20:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:20:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:20:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:20:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:20:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:20:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:20:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 21:20:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:20:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:20:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:20:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:20:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:20:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:20:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:20:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:20:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:20:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:20:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:20:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:20:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:20:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:20:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:20:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 21:20:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:20:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:20:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:20:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 21:20:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:20:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 21:20:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:20:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:20:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:20:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:20:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:20:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:20:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:20:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:20:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:20:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:20:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:20:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:20:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:20:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:20:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:20:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:20:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:20:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:20:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:20:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:20:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:20:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:20:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:20:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:20:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:20:07,154 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:20:07,155 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:20:07,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:20:07 BoogieIcfgContainer [2019-10-13 21:20:07,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:20:07,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:20:07,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:20:07,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:20:07,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:20:05" (1/3) ... [2019-10-13 21:20:07,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336aee21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:20:07, skipping insertion in model container [2019-10-13 21:20:07,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:05" (2/3) ... [2019-10-13 21:20:07,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336aee21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:20:07, skipping insertion in model container [2019-10-13 21:20:07,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:20:07" (3/3) ... [2019-10-13 21:20:07,165 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2019-10-13 21:20:07,175 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:20:07,185 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:20:07,197 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:20:07,223 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:20:07,223 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:20:07,223 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:20:07,224 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:20:07,224 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:20:07,224 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:20:07,224 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:20:07,224 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:20:07,248 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-10-13 21:20:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 21:20:07,259 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:07,260 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:07,262 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:07,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:07,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1070296044, now seen corresponding path program 1 times [2019-10-13 21:20:07,278 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:07,279 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863361440] [2019-10-13 21:20:07,279 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:07,279 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:07,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:07,632 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 21:20:07,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863361440] [2019-10-13 21:20:07,634 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:07,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:20:07,635 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401268654] [2019-10-13 21:20:07,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:20:07,641 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:07,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:20:07,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:20:07,660 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2019-10-13 21:20:07,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:07,706 INFO L93 Difference]: Finished difference Result 272 states and 341 transitions. [2019-10-13 21:20:07,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:20:07,708 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-13 21:20:07,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:07,728 INFO L225 Difference]: With dead ends: 272 [2019-10-13 21:20:07,728 INFO L226 Difference]: Without dead ends: 136 [2019-10-13 21:20:07,736 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 21:20:07,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-13 21:20:07,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-10-13 21:20:07,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-13 21:20:07,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2019-10-13 21:20:07,809 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 46 [2019-10-13 21:20:07,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:07,810 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2019-10-13 21:20:07,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:20:07,810 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2019-10-13 21:20:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 21:20:07,816 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:07,817 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 21:20:07,817 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:07,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:07,819 INFO L82 PathProgramCache]: Analyzing trace with hash 689119196, now seen corresponding path program 1 times [2019-10-13 21:20:07,819 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:07,819 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844965297] [2019-10-13 21:20:07,820 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:07,820 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:07,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:07,976 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 21:20:07,976 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844965297] [2019-10-13 21:20:07,977 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:07,977 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:20:07,978 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394144268] [2019-10-13 21:20:07,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:20:07,983 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:07,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:20:07,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:20:07,983 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand 3 states. [2019-10-13 21:20:08,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:08,012 INFO L93 Difference]: Finished difference Result 215 states and 255 transitions. [2019-10-13 21:20:08,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:20:08,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-13 21:20:08,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:08,020 INFO L225 Difference]: With dead ends: 215 [2019-10-13 21:20:08,020 INFO L226 Difference]: Without dead ends: 127 [2019-10-13 21:20:08,022 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 21:20:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-13 21:20:08,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-10-13 21:20:08,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-10-13 21:20:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 150 transitions. [2019-10-13 21:20:08,043 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 150 transitions. Word has length 47 [2019-10-13 21:20:08,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:08,044 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 150 transitions. [2019-10-13 21:20:08,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:20:08,044 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2019-10-13 21:20:08,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 21:20:08,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:08,048 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 21:20:08,048 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:08,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:08,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1659347680, now seen corresponding path program 1 times [2019-10-13 21:20:08,051 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:08,051 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432519955] [2019-10-13 21:20:08,051 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:08,051 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:08,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:08,253 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 21:20:08,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432519955] [2019-10-13 21:20:08,254 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:08,254 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:20:08,255 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558988570] [2019-10-13 21:20:08,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:20:08,256 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:08,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:20:08,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:20:08,256 INFO L87 Difference]: Start difference. First operand 127 states and 150 transitions. Second operand 7 states. [2019-10-13 21:20:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:08,856 INFO L93 Difference]: Finished difference Result 383 states and 468 transitions. [2019-10-13 21:20:08,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:20:08,857 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-13 21:20:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:08,864 INFO L225 Difference]: With dead ends: 383 [2019-10-13 21:20:08,866 INFO L226 Difference]: Without dead ends: 280 [2019-10-13 21:20:08,867 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 21:20:08,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-10-13 21:20:08,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 272. [2019-10-13 21:20:08,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2019-10-13 21:20:08,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 332 transitions. [2019-10-13 21:20:08,911 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 332 transitions. Word has length 51 [2019-10-13 21:20:08,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:08,911 INFO L462 AbstractCegarLoop]: Abstraction has 272 states and 332 transitions. [2019-10-13 21:20:08,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:20:08,911 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 332 transitions. [2019-10-13 21:20:08,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 21:20:08,917 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:08,917 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:08,918 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:08,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:08,918 INFO L82 PathProgramCache]: Analyzing trace with hash -2103406603, now seen corresponding path program 1 times [2019-10-13 21:20:08,918 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:08,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743028226] [2019-10-13 21:20:08,919 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:08,919 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:08,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:09,044 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 21:20:09,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743028226] [2019-10-13 21:20:09,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:09,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:20:09,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349720935] [2019-10-13 21:20:09,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:20:09,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:09,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:20:09,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:20:09,047 INFO L87 Difference]: Start difference. First operand 272 states and 332 transitions. Second operand 6 states. [2019-10-13 21:20:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:09,288 INFO L93 Difference]: Finished difference Result 753 states and 944 transitions. [2019-10-13 21:20:09,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:09,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-10-13 21:20:09,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:09,296 INFO L225 Difference]: With dead ends: 753 [2019-10-13 21:20:09,297 INFO L226 Difference]: Without dead ends: 505 [2019-10-13 21:20:09,299 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 21:20:09,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2019-10-13 21:20:09,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 499. [2019-10-13 21:20:09,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2019-10-13 21:20:09,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 614 transitions. [2019-10-13 21:20:09,349 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 614 transitions. Word has length 57 [2019-10-13 21:20:09,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:09,350 INFO L462 AbstractCegarLoop]: Abstraction has 499 states and 614 transitions. [2019-10-13 21:20:09,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:20:09,351 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 614 transitions. [2019-10-13 21:20:09,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-13 21:20:09,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:09,357 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:09,357 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:09,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:09,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1216252231, now seen corresponding path program 1 times [2019-10-13 21:20:09,358 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:09,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097040392] [2019-10-13 21:20:09,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:09,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:09,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:09,461 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 21:20:09,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097040392] [2019-10-13 21:20:09,461 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:09,462 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:20:09,462 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316938010] [2019-10-13 21:20:09,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:20:09,463 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:09,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:20:09,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:20:09,463 INFO L87 Difference]: Start difference. First operand 499 states and 614 transitions. Second operand 7 states. [2019-10-13 21:20:10,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:10,193 INFO L93 Difference]: Finished difference Result 1320 states and 1731 transitions. [2019-10-13 21:20:10,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:20:10,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-10-13 21:20:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:10,206 INFO L225 Difference]: With dead ends: 1320 [2019-10-13 21:20:10,206 INFO L226 Difference]: Without dead ends: 845 [2019-10-13 21:20:10,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:20:10,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-13 21:20:10,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 749. [2019-10-13 21:20:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-13 21:20:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 911 transitions. [2019-10-13 21:20:10,308 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 911 transitions. Word has length 61 [2019-10-13 21:20:10,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:10,309 INFO L462 AbstractCegarLoop]: Abstraction has 749 states and 911 transitions. [2019-10-13 21:20:10,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:20:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 911 transitions. [2019-10-13 21:20:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 21:20:10,314 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:10,314 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:10,315 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:10,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:10,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1403376364, now seen corresponding path program 1 times [2019-10-13 21:20:10,315 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:10,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28588312] [2019-10-13 21:20:10,316 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:10,316 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:10,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:20:10,454 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28588312] [2019-10-13 21:20:10,454 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:10,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:20:10,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660286493] [2019-10-13 21:20:10,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:20:10,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:10,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:20:10,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:20:10,457 INFO L87 Difference]: Start difference. First operand 749 states and 911 transitions. Second operand 4 states. [2019-10-13 21:20:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:10,801 INFO L93 Difference]: Finished difference Result 2772 states and 3584 transitions. [2019-10-13 21:20:10,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:20:10,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-10-13 21:20:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:10,816 INFO L225 Difference]: With dead ends: 2772 [2019-10-13 21:20:10,817 INFO L226 Difference]: Without dead ends: 2047 [2019-10-13 21:20:10,820 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:20:10,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2019-10-13 21:20:10,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2001. [2019-10-13 21:20:10,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2019-10-13 21:20:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2521 transitions. [2019-10-13 21:20:10,967 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2521 transitions. Word has length 98 [2019-10-13 21:20:10,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:10,967 INFO L462 AbstractCegarLoop]: Abstraction has 2001 states and 2521 transitions. [2019-10-13 21:20:10,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:20:10,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2521 transitions. [2019-10-13 21:20:10,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 21:20:10,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:10,973 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:10,973 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:10,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:10,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1411135723, now seen corresponding path program 1 times [2019-10-13 21:20:10,974 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:10,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208984832] [2019-10-13 21:20:10,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:10,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:10,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:11,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:20:11,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208984832] [2019-10-13 21:20:11,052 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:11,053 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:20:11,053 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403380863] [2019-10-13 21:20:11,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:20:11,054 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:11,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:20:11,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:20:11,055 INFO L87 Difference]: Start difference. First operand 2001 states and 2521 transitions. Second operand 6 states. [2019-10-13 21:20:11,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:11,217 INFO L93 Difference]: Finished difference Result 4062 states and 5342 transitions. [2019-10-13 21:20:11,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:20:11,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2019-10-13 21:20:11,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:11,232 INFO L225 Difference]: With dead ends: 4062 [2019-10-13 21:20:11,233 INFO L226 Difference]: Without dead ends: 2085 [2019-10-13 21:20:11,240 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:20:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2019-10-13 21:20:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2061. [2019-10-13 21:20:11,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2061 states. [2019-10-13 21:20:11,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 2585 transitions. [2019-10-13 21:20:11,371 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 2585 transitions. Word has length 98 [2019-10-13 21:20:11,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:11,371 INFO L462 AbstractCegarLoop]: Abstraction has 2061 states and 2585 transitions. [2019-10-13 21:20:11,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:20:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 2585 transitions. [2019-10-13 21:20:11,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 21:20:11,376 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:11,377 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:11,377 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:11,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:11,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1990345235, now seen corresponding path program 1 times [2019-10-13 21:20:11,378 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:11,378 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730816221] [2019-10-13 21:20:11,378 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:11,378 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:11,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:20:11,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730816221] [2019-10-13 21:20:11,524 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:11,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:20:11,524 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072250245] [2019-10-13 21:20:11,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:20:11,525 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:11,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:20:11,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:20:11,526 INFO L87 Difference]: Start difference. First operand 2061 states and 2585 transitions. Second operand 8 states. [2019-10-13 21:20:11,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:11,651 INFO L93 Difference]: Finished difference Result 3744 states and 4844 transitions. [2019-10-13 21:20:11,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:11,652 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2019-10-13 21:20:11,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:11,665 INFO L225 Difference]: With dead ends: 3744 [2019-10-13 21:20:11,666 INFO L226 Difference]: Without dead ends: 1707 [2019-10-13 21:20:11,674 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:20:11,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2019-10-13 21:20:11,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2019-10-13 21:20:11,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-10-13 21:20:11,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2111 transitions. [2019-10-13 21:20:11,805 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2111 transitions. Word has length 98 [2019-10-13 21:20:11,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:11,806 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 2111 transitions. [2019-10-13 21:20:11,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:20:11,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2111 transitions. [2019-10-13 21:20:11,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-13 21:20:11,811 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:11,811 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:11,812 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:11,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:11,812 INFO L82 PathProgramCache]: Analyzing trace with hash 860662504, now seen corresponding path program 1 times [2019-10-13 21:20:11,813 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:11,813 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521926098] [2019-10-13 21:20:11,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:11,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:11,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:20:11,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521926098] [2019-10-13 21:20:11,970 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165423059] [2019-10-13 21:20:11,970 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 21:20:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:12,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 21:20:12,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:20:12,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:12,446 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:20:13,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:20:13,397 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:20:13,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-10-13 21:20:13,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811783821] [2019-10-13 21:20:13,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:20:13,398 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:13,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:20:13,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:20:13,399 INFO L87 Difference]: Start difference. First operand 1707 states and 2111 transitions. Second operand 8 states. [2019-10-13 21:20:14,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:14,090 INFO L93 Difference]: Finished difference Result 3364 states and 4178 transitions. [2019-10-13 21:20:14,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:14,091 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-10-13 21:20:14,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:14,107 INFO L225 Difference]: With dead ends: 3364 [2019-10-13 21:20:14,107 INFO L226 Difference]: Without dead ends: 1681 [2019-10-13 21:20:14,116 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 187 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:20:14,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2019-10-13 21:20:14,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1681. [2019-10-13 21:20:14,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2019-10-13 21:20:14,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2035 transitions. [2019-10-13 21:20:14,248 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2035 transitions. Word has length 102 [2019-10-13 21:20:14,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:14,251 INFO L462 AbstractCegarLoop]: Abstraction has 1681 states and 2035 transitions. [2019-10-13 21:20:14,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:20:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2035 transitions. [2019-10-13 21:20:14,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 21:20:14,262 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:14,262 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:14,467 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:14,468 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:14,468 INFO L82 PathProgramCache]: Analyzing trace with hash -860409938, now seen corresponding path program 1 times [2019-10-13 21:20:14,469 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:14,469 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132920961] [2019-10-13 21:20:14,469 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:14,470 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:14,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-13 21:20:14,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132920961] [2019-10-13 21:20:14,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419509042] [2019-10-13 21:20:14,569 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 21:20:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:14,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:20:14,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:20:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:20:14,875 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:20:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-13 21:20:15,223 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:20:15,224 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2019-10-13 21:20:15,224 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263182360] [2019-10-13 21:20:15,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:20:15,225 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:15,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:20:15,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:20:15,226 INFO L87 Difference]: Start difference. First operand 1681 states and 2035 transitions. Second operand 5 states. [2019-10-13 21:20:15,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:15,905 INFO L93 Difference]: Finished difference Result 3666 states and 4703 transitions. [2019-10-13 21:20:15,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:15,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2019-10-13 21:20:15,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:15,922 INFO L225 Difference]: With dead ends: 3666 [2019-10-13 21:20:15,922 INFO L226 Difference]: Without dead ends: 2325 [2019-10-13 21:20:15,927 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 314 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:20:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2019-10-13 21:20:16,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2117. [2019-10-13 21:20:16,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2019-10-13 21:20:16,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2617 transitions. [2019-10-13 21:20:16,081 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2617 transitions. Word has length 157 [2019-10-13 21:20:16,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:16,083 INFO L462 AbstractCegarLoop]: Abstraction has 2117 states and 2617 transitions. [2019-10-13 21:20:16,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:20:16,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2617 transitions. [2019-10-13 21:20:16,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 21:20:16,103 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:16,112 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:16,313 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:16,314 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:16,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:16,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1025619864, now seen corresponding path program 1 times [2019-10-13 21:20:16,315 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:16,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404200904] [2019-10-13 21:20:16,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:16,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:16,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 21:20:16,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404200904] [2019-10-13 21:20:16,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551725310] [2019-10-13 21:20:16,551 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 21:20:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:16,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 21:20:16,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:20:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 21:20:16,912 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:20:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 21:20:17,437 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:20:17,437 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-10-13 21:20:17,437 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871784822] [2019-10-13 21:20:17,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:20:17,438 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:17,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:20:17,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:20:17,439 INFO L87 Difference]: Start difference. First operand 2117 states and 2617 transitions. Second operand 8 states. [2019-10-13 21:20:17,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:17,860 INFO L93 Difference]: Finished difference Result 3715 states and 4685 transitions. [2019-10-13 21:20:17,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:17,861 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2019-10-13 21:20:17,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:17,862 INFO L225 Difference]: With dead ends: 3715 [2019-10-13 21:20:17,862 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:20:17,872 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 291 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:20:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:20:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:20:17,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:20:17,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:20:17,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2019-10-13 21:20:17,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:17,874 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:20:17,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:20:17,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:20:17,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:20:18,079 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:18,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:20:19,748 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 15 [2019-10-13 21:20:20,032 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 19 [2019-10-13 21:20:20,165 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 22 [2019-10-13 21:20:20,489 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 28 [2019-10-13 21:20:20,977 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 35 [2019-10-13 21:20:21,129 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 19 [2019-10-13 21:20:21,743 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 37 [2019-10-13 21:20:22,095 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 26 [2019-10-13 21:20:22,520 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 22 [2019-10-13 21:20:22,837 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 17 [2019-10-13 21:20:23,083 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 23 [2019-10-13 21:20:23,409 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 23 [2019-10-13 21:20:23,920 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 34 [2019-10-13 21:20:24,046 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 18 [2019-10-13 21:20:24,241 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 19 [2019-10-13 21:20:24,813 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 30 [2019-10-13 21:20:24,912 INFO L443 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2019-10-13 21:20:24,912 INFO L443 ceAbstractionStarter]: For program point L576-2(lines 576 597) no Hoare annotation was computed. [2019-10-13 21:20:24,913 INFO L443 ceAbstractionStarter]: For program point L598(lines 575 599) no Hoare annotation was computed. [2019-10-13 21:20:24,913 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 551 606) no Hoare annotation was computed. [2019-10-13 21:20:24,913 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 551 606) no Hoare annotation was computed. [2019-10-13 21:20:24,913 INFO L443 ceAbstractionStarter]: For program point L582(lines 582 586) no Hoare annotation was computed. [2019-10-13 21:20:24,913 INFO L443 ceAbstractionStarter]: For program point L582-1(lines 582 586) no Hoare annotation was computed. [2019-10-13 21:20:24,913 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 551 606) no Hoare annotation was computed. [2019-10-13 21:20:24,913 INFO L443 ceAbstractionStarter]: For program point L639(lines 639 643) no Hoare annotation was computed. [2019-10-13 21:20:24,914 INFO L443 ceAbstractionStarter]: For program point L639-1(lines 639 643) no Hoare annotation was computed. [2019-10-13 21:20:24,914 INFO L443 ceAbstractionStarter]: For program point L634(line 634) no Hoare annotation was computed. [2019-10-13 21:20:24,914 INFO L443 ceAbstractionStarter]: For program point L633-2(lines 633 658) no Hoare annotation was computed. [2019-10-13 21:20:24,914 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 607 666) no Hoare annotation was computed. [2019-10-13 21:20:24,914 INFO L443 ceAbstractionStarter]: For program point L659(lines 632 660) no Hoare annotation was computed. [2019-10-13 21:20:24,915 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 607 666) no Hoare annotation was computed. [2019-10-13 21:20:24,915 INFO L443 ceAbstractionStarter]: For program point L652(line 652) no Hoare annotation was computed. [2019-10-13 21:20:24,915 INFO L443 ceAbstractionStarter]: For program point L652-1(line 652) no Hoare annotation was computed. [2019-10-13 21:20:24,915 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 607 666) no Hoare annotation was computed. [2019-10-13 21:20:24,915 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 99 105) the Hoare annotation is: true [2019-10-13 21:20:24,915 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 99 105) no Hoare annotation was computed. [2019-10-13 21:20:24,916 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 106 114) no Hoare annotation was computed. [2019-10-13 21:20:24,916 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 106 114) the Hoare annotation is: true [2019-10-13 21:20:24,916 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 106 114) no Hoare annotation was computed. [2019-10-13 21:20:24,916 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 937 959) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:24,916 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 937 959) no Hoare annotation was computed. [2019-10-13 21:20:24,916 INFO L439 ceAbstractionStarter]: At program point L949(line 949) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~9 1) (= main_~tmp~9 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:24,917 INFO L439 ceAbstractionStarter]: At program point L949-1(line 949) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~9 1) (= main_~tmp~9 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:24,917 INFO L443 ceAbstractionStarter]: For program point L947(lines 947 954) no Hoare annotation was computed. [2019-10-13 21:20:24,917 INFO L443 ceAbstractionStarter]: For program point L947-1(lines 947 954) no Hoare annotation was computed. [2019-10-13 21:20:24,917 INFO L443 ceAbstractionStarter]: For program point L945(line 945) no Hoare annotation was computed. [2019-10-13 21:20:24,917 INFO L439 ceAbstractionStarter]: At program point L944(line 944) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:24,917 INFO L439 ceAbstractionStarter]: At program point L943(line 943) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:24,918 INFO L439 ceAbstractionStarter]: At program point L943-1(line 943) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:24,918 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 937 959) no Hoare annotation was computed. [2019-10-13 21:20:24,918 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 896 919) no Hoare annotation was computed. [2019-10-13 21:20:24,918 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 896 919) no Hoare annotation was computed. [2019-10-13 21:20:24,918 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 896 919) no Hoare annotation was computed. [2019-10-13 21:20:24,918 INFO L443 ceAbstractionStarter]: For program point L914(line 914) no Hoare annotation was computed. [2019-10-13 21:20:24,918 INFO L443 ceAbstractionStarter]: For program point L913(line 913) no Hoare annotation was computed. [2019-10-13 21:20:24,919 INFO L443 ceAbstractionStarter]: For program point L912(line 912) no Hoare annotation was computed. [2019-10-13 21:20:24,919 INFO L443 ceAbstractionStarter]: For program point L911(line 911) no Hoare annotation was computed. [2019-10-13 21:20:24,919 INFO L443 ceAbstractionStarter]: For program point L910(line 910) no Hoare annotation was computed. [2019-10-13 21:20:24,919 INFO L443 ceAbstractionStarter]: For program point L909(line 909) no Hoare annotation was computed. [2019-10-13 21:20:24,919 INFO L443 ceAbstractionStarter]: For program point L908(line 908) no Hoare annotation was computed. [2019-10-13 21:20:24,919 INFO L443 ceAbstractionStarter]: For program point L907(line 907) no Hoare annotation was computed. [2019-10-13 21:20:24,919 INFO L443 ceAbstractionStarter]: For program point L906(line 906) no Hoare annotation was computed. [2019-10-13 21:20:24,919 INFO L443 ceAbstractionStarter]: For program point L905(line 905) no Hoare annotation was computed. [2019-10-13 21:20:24,920 INFO L443 ceAbstractionStarter]: For program point L904(line 904) no Hoare annotation was computed. [2019-10-13 21:20:24,920 INFO L443 ceAbstractionStarter]: For program point L903(line 903) no Hoare annotation was computed. [2019-10-13 21:20:24,920 INFO L443 ceAbstractionStarter]: For program point L902(line 902) no Hoare annotation was computed. [2019-10-13 21:20:24,920 INFO L443 ceAbstractionStarter]: For program point L901(line 901) no Hoare annotation was computed. [2019-10-13 21:20:24,920 INFO L439 ceAbstractionStarter]: At program point L275(line 275) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2019-10-13 21:20:24,920 INFO L443 ceAbstractionStarter]: For program point L275-1(lines 256 280) no Hoare annotation was computed. [2019-10-13 21:20:24,920 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 256 280) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse0 (= ~pumpRunning~0 0)) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0))))) [2019-10-13 21:20:24,921 INFO L439 ceAbstractionStarter]: At program point L270(line 270) the Hoare annotation is: (let ((.cse1 (= processEnvironment__wrappee__methaneQuery_~tmp~1 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse0 (= ~systemActive~0 0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse0 (and .cse1 .cse2)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) .cse0 (not (= ~methaneLevelCritical~0 0))))) [2019-10-13 21:20:24,921 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 256 280) no Hoare annotation was computed. [2019-10-13 21:20:24,921 INFO L439 ceAbstractionStarter]: At program point L266(line 266) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 0)) (.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse2 (and .cse0 .cse1)))) [2019-10-13 21:20:24,921 INFO L443 ceAbstractionStarter]: For program point L264(lines 264 272) no Hoare annotation was computed. [2019-10-13 21:20:24,921 INFO L439 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (= ~pumpRunning~0 0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (not (= ~methaneLevelCritical~0 0))))) [2019-10-13 21:20:24,922 INFO L443 ceAbstractionStarter]: For program point L262-1(line 262) no Hoare annotation was computed. [2019-10-13 21:20:24,922 INFO L443 ceAbstractionStarter]: For program point L260(lines 260 277) no Hoare annotation was computed. [2019-10-13 21:20:24,922 INFO L443 ceAbstractionStarter]: For program point stopSystemEXIT(lines 415 429) no Hoare annotation was computed. [2019-10-13 21:20:24,922 INFO L439 ceAbstractionStarter]: At program point stopSystemENTRY(lines 415 429) the Hoare annotation is: (let ((.cse2 (= |old(~systemActive~0)| 0)) (.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0)))) (.cse3 (= 1 ~systemActive~0)) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= |old(~systemActive~0)| 1))) (.cse7 (= ~pumpRunning~0 0)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse1 .cse6 .cse7) (or .cse2 .cse0 .cse5) (or .cse3 .cse1 .cse4) (or .cse7 (or .cse6 .cse5)))) [2019-10-13 21:20:24,922 INFO L439 ceAbstractionStarter]: At program point L421(line 421) the Hoare annotation is: (let ((.cse3 (= |old(~systemActive~0)| 0)) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0)))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 1 ~systemActive~0)) (.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (= |old(~systemActive~0)| 1)))) (and (or .cse0 .cse1) (or .cse2 .cse0 .cse3) (or .cse4 .cse5 .cse6) (or .cse3 .cse2 .cse6) (or .cse1 .cse6) (or .cse4 .cse0 .cse5))) [2019-10-13 21:20:24,922 INFO L443 ceAbstractionStarter]: For program point stopSystemFINAL(lines 415 429) no Hoare annotation was computed. [2019-10-13 21:20:24,923 INFO L443 ceAbstractionStarter]: For program point L419(lines 419 425) no Hoare annotation was computed. [2019-10-13 21:20:24,923 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 351 359) no Hoare annotation was computed. [2019-10-13 21:20:24,923 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 351 359) the Hoare annotation is: true [2019-10-13 21:20:24,923 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 351 359) no Hoare annotation was computed. [2019-10-13 21:20:24,923 INFO L443 ceAbstractionStarter]: For program point L379(lines 379 387) no Hoare annotation was computed. [2019-10-13 21:20:24,923 INFO L443 ceAbstractionStarter]: For program point L379-2(lines 379 387) no Hoare annotation was computed. [2019-10-13 21:20:24,923 INFO L443 ceAbstractionStarter]: For program point L367(lines 367 375) no Hoare annotation was computed. [2019-10-13 21:20:24,923 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 360 395) no Hoare annotation was computed. [2019-10-13 21:20:24,924 INFO L443 ceAbstractionStarter]: For program point L367-2(lines 367 375) no Hoare annotation was computed. [2019-10-13 21:20:24,924 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 360 395) no Hoare annotation was computed. [2019-10-13 21:20:24,924 INFO L443 ceAbstractionStarter]: For program point L390(line 390) no Hoare annotation was computed. [2019-10-13 21:20:24,924 INFO L443 ceAbstractionStarter]: For program point L390-1(line 390) no Hoare annotation was computed. [2019-10-13 21:20:24,924 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 360 395) no Hoare annotation was computed. [2019-10-13 21:20:24,924 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 92 98) no Hoare annotation was computed. [2019-10-13 21:20:24,924 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 92 98) the Hoare annotation is: true [2019-10-13 21:20:24,924 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 505 550) no Hoare annotation was computed. [2019-10-13 21:20:24,925 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 505 550) no Hoare annotation was computed. [2019-10-13 21:20:24,925 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 505 550) no Hoare annotation was computed. [2019-10-13 21:20:24,925 INFO L443 ceAbstractionStarter]: For program point L832(lines 832 852) no Hoare annotation was computed. [2019-10-13 21:20:24,925 INFO L443 ceAbstractionStarter]: For program point L832-1(lines 832 852) no Hoare annotation was computed. [2019-10-13 21:20:24,925 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 818 863) no Hoare annotation was computed. [2019-10-13 21:20:24,925 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 818 863) no Hoare annotation was computed. [2019-10-13 21:20:24,925 INFO L443 ceAbstractionStarter]: For program point L838(lines 838 845) no Hoare annotation was computed. [2019-10-13 21:20:24,925 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 818 863) no Hoare annotation was computed. [2019-10-13 21:20:24,926 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 927 936) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:24,926 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 927 936) no Hoare annotation was computed. [2019-10-13 21:20:24,926 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 927 936) no Hoare annotation was computed. [2019-10-13 21:20:24,926 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 340 350) the Hoare annotation is: true [2019-10-13 21:20:24,926 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 340 350) no Hoare annotation was computed. [2019-10-13 21:20:24,926 INFO L446 ceAbstractionStarter]: At program point L345(line 345) the Hoare annotation is: true [2019-10-13 21:20:24,926 INFO L443 ceAbstractionStarter]: For program point L345-1(line 345) no Hoare annotation was computed. [2019-10-13 21:20:24,927 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 340 350) no Hoare annotation was computed. [2019-10-13 21:20:24,927 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 332 339) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2019-10-13 21:20:24,927 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 332 339) no Hoare annotation was computed. [2019-10-13 21:20:24,927 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 332 339) no Hoare annotation was computed. [2019-10-13 21:20:24,927 INFO L443 ceAbstractionStarter]: For program point L205(lines 205 211) no Hoare annotation was computed. [2019-10-13 21:20:24,927 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 201 214) no Hoare annotation was computed. [2019-10-13 21:20:24,927 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 201 214) the Hoare annotation is: true [2019-10-13 21:20:24,927 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 201 214) no Hoare annotation was computed. [2019-10-13 21:20:24,928 INFO L439 ceAbstractionStarter]: At program point L288(line 288) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse1 .cse3 .cse2) (or .cse4 .cse0 .cse1))) [2019-10-13 21:20:24,928 INFO L443 ceAbstractionStarter]: For program point L288-1(line 288) no Hoare annotation was computed. [2019-10-13 21:20:24,928 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 303) no Hoare annotation was computed. [2019-10-13 21:20:24,928 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 282 306) no Hoare annotation was computed. [2019-10-13 21:20:24,928 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 282 306) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2019-10-13 21:20:24,928 INFO L439 ceAbstractionStarter]: At program point L301(line 301) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2019-10-13 21:20:24,929 INFO L443 ceAbstractionStarter]: For program point L301-1(lines 282 306) no Hoare annotation was computed. [2019-10-13 21:20:24,929 INFO L439 ceAbstractionStarter]: At program point L296(line 296) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1))) [2019-10-13 21:20:24,929 INFO L439 ceAbstractionStarter]: At program point L292(line 292) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse2) (or .cse4 .cse1 (and .cse3 (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2))) (or .cse4 .cse0 .cse1))) [2019-10-13 21:20:24,929 INFO L443 ceAbstractionStarter]: For program point L290(lines 290 298) no Hoare annotation was computed. [2019-10-13 21:20:24,929 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 248 254) no Hoare annotation was computed. [2019-10-13 21:20:24,929 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 248 254) the Hoare annotation is: true [2019-10-13 21:20:24,929 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 432 497) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:24,930 INFO L443 ceAbstractionStarter]: For program point L444(lines 444 448) no Hoare annotation was computed. [2019-10-13 21:20:24,930 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 432 497) no Hoare annotation was computed. [2019-10-13 21:20:24,930 INFO L439 ceAbstractionStarter]: At program point L490(lines 441 491) 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 21:20:24,930 INFO L439 ceAbstractionStarter]: At program point L480(line 480) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 .cse3 .cse4) (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse4) (and .cse1 .cse3 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 21:20:24,930 INFO L443 ceAbstractionStarter]: For program point L478(lines 478 484) no Hoare annotation was computed. [2019-10-13 21:20:24,930 INFO L439 ceAbstractionStarter]: At program point L478-1(lines 472 485) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 .cse3 .cse4) (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse4) (and .cse1 .cse3 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 21:20:24,930 INFO L443 ceAbstractionStarter]: For program point L443(lines 442 489) no Hoare annotation was computed. [2019-10-13 21:20:24,931 INFO L443 ceAbstractionStarter]: For program point L472(lines 472 485) no Hoare annotation was computed. [2019-10-13 21:20:24,931 INFO L439 ceAbstractionStarter]: At program point L464(line 464) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 21:20:24,931 INFO L443 ceAbstractionStarter]: For program point L462(lines 462 468) no Hoare annotation was computed. [2019-10-13 21:20:24,931 INFO L443 ceAbstractionStarter]: For program point L462-1(lines 462 468) no Hoare annotation was computed. [2019-10-13 21:20:24,931 INFO L439 ceAbstractionStarter]: At program point L487(lines 442 489) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 21:20:24,931 INFO L439 ceAbstractionStarter]: At program point L454(line 454) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (not (= |old(~systemActive~0)| 1)) (and (and .cse1 .cse2) (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 .cse1 .cse2))) [2019-10-13 21:20:24,932 INFO L443 ceAbstractionStarter]: For program point L452(lines 452 458) no Hoare annotation was computed. [2019-10-13 21:20:24,932 INFO L443 ceAbstractionStarter]: For program point L452-1(lines 452 458) no Hoare annotation was computed. [2019-10-13 21:20:24,932 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 432 497) no Hoare annotation was computed. [2019-10-13 21:20:24,932 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 772 817) no Hoare annotation was computed. [2019-10-13 21:20:24,932 INFO L443 ceAbstractionStarter]: For program point L792(lines 792 799) no Hoare annotation was computed. [2019-10-13 21:20:24,932 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 772 817) no Hoare annotation was computed. [2019-10-13 21:20:24,932 INFO L443 ceAbstractionStarter]: For program point L786(lines 786 806) no Hoare annotation was computed. [2019-10-13 21:20:24,932 INFO L443 ceAbstractionStarter]: For program point L786-1(lines 786 806) no Hoare annotation was computed. [2019-10-13 21:20:24,933 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 772 817) no Hoare annotation was computed. [2019-10-13 21:20:24,933 INFO L439 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 307 314) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 0) (= ~systemActive~0 0) (not (<= 2 ~waterLevel~0)) (not (= ~methaneLevelCritical~0 0))) [2019-10-13 21:20:24,933 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 307 314) no Hoare annotation was computed. [2019-10-13 21:20:24,933 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 307 314) no Hoare annotation was computed. [2019-10-13 21:20:24,933 INFO L443 ceAbstractionStarter]: For program point L177(lines 177 185) no Hoare annotation was computed. [2019-10-13 21:20:24,933 INFO L443 ceAbstractionStarter]: For program point L177-2(lines 177 185) no Hoare annotation was computed. [2019-10-13 21:20:24,933 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 169 191) no Hoare annotation was computed. [2019-10-13 21:20:24,933 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 169 191) no Hoare annotation was computed. [2019-10-13 21:20:24,934 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 169 191) no Hoare annotation was computed. [2019-10-13 21:20:24,934 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 82 91) no Hoare annotation was computed. [2019-10-13 21:20:24,934 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 82 91) no Hoare annotation was computed. [2019-10-13 21:20:24,934 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 82 91) no Hoare annotation was computed. [2019-10-13 21:20:24,934 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 669 771) no Hoare annotation was computed. [2019-10-13 21:20:24,934 INFO L443 ceAbstractionStarter]: For program point L698(lines 698 714) no Hoare annotation was computed. [2019-10-13 21:20:24,934 INFO L443 ceAbstractionStarter]: For program point L758(lines 758 765) no Hoare annotation was computed. [2019-10-13 21:20:24,934 INFO L443 ceAbstractionStarter]: For program point L719(lines 718 738) no Hoare annotation was computed. [2019-10-13 21:20:24,934 INFO L443 ceAbstractionStarter]: For program point L750(line 750) no Hoare annotation was computed. [2019-10-13 21:20:24,935 INFO L443 ceAbstractionStarter]: For program point L750-1(line 750) no Hoare annotation was computed. [2019-10-13 21:20:24,935 INFO L443 ceAbstractionStarter]: For program point L715(lines 715 756) no Hoare annotation was computed. [2019-10-13 21:20:24,935 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 669 771) no Hoare annotation was computed. [2019-10-13 21:20:24,935 INFO L443 ceAbstractionStarter]: For program point L734(line 734) no Hoare annotation was computed. [2019-10-13 21:20:24,935 INFO L443 ceAbstractionStarter]: For program point L734-1(line 734) no Hoare annotation was computed. [2019-10-13 21:20:24,935 INFO L443 ceAbstractionStarter]: For program point L693(lines 693 697) no Hoare annotation was computed. [2019-10-13 21:20:24,935 INFO L443 ceAbstractionStarter]: For program point L757(lines 757 768) no Hoare annotation was computed. [2019-10-13 21:20:24,935 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 669 771) no Hoare annotation was computed. [2019-10-13 21:20:24,935 INFO L443 ceAbstractionStarter]: For program point L720(lines 720 724) no Hoare annotation was computed. [2019-10-13 21:20:24,936 INFO L443 ceAbstractionStarter]: For program point L718-2(lines 718 738) no Hoare annotation was computed. [2019-10-13 21:20:24,936 INFO L443 ceAbstractionStarter]: For program point L739(lines 717 740) no Hoare annotation was computed. [2019-10-13 21:20:24,936 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:20:24,936 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-13 21:20:24,936 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:20:24,936 INFO L439 ceAbstractionStarter]: At program point L320(line 320) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (not (<= 2 ~waterLevel~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse2 .cse3 .cse1))) [2019-10-13 21:20:24,936 INFO L443 ceAbstractionStarter]: For program point L320-1(line 320) no Hoare annotation was computed. [2019-10-13 21:20:24,937 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 315 331) no Hoare annotation was computed. [2019-10-13 21:20:24,937 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 315 331) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (not (<= 2 ~waterLevel~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse2 .cse3 .cse1))) [2019-10-13 21:20:24,937 INFO L439 ceAbstractionStarter]: At program point L326(line 326) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1 .cse2))) [2019-10-13 21:20:24,937 INFO L443 ceAbstractionStarter]: For program point L326-1(lines 315 331) no Hoare annotation was computed. [2019-10-13 21:20:24,937 INFO L443 ceAbstractionStarter]: For program point L322(lines 322 328) no Hoare annotation was computed. [2019-10-13 21:20:24,937 INFO L443 ceAbstractionStarter]: For program point getWaterLevelENTRY(lines 192 200) no Hoare annotation was computed. [2019-10-13 21:20:24,937 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 192 200) no Hoare annotation was computed. [2019-10-13 21:20:24,938 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 192 200) no Hoare annotation was computed. [2019-10-13 21:20:24,938 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 396 414) no Hoare annotation was computed. [2019-10-13 21:20:24,938 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 396 414) the Hoare annotation is: true [2019-10-13 21:20:24,938 INFO L443 ceAbstractionStarter]: For program point L405(lines 405 409) no Hoare annotation was computed. [2019-10-13 21:20:24,938 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 396 414) no Hoare annotation was computed. [2019-10-13 21:20:24,938 INFO L446 ceAbstractionStarter]: At program point L403(line 403) the Hoare annotation is: true [2019-10-13 21:20:24,938 INFO L443 ceAbstractionStarter]: For program point L405-2(lines 405 409) no Hoare annotation was computed. [2019-10-13 21:20:24,938 INFO L443 ceAbstractionStarter]: For program point L403-1(line 403) no Hoare annotation was computed. [2019-10-13 21:20:24,939 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 148 159) the Hoare annotation is: (let ((.cse1 (not (= 0 ~pumpRunning~0))) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse2 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or (not (<= 1 |old(~methaneLevelCritical~0)|)) .cse1 (<= 1 ~methaneLevelCritical~0)) (or (= ~systemActive~0 0) .cse0 .cse2))) [2019-10-13 21:20:24,939 INFO L443 ceAbstractionStarter]: For program point L152-1(lines 148 159) no Hoare annotation was computed. [2019-10-13 21:20:24,939 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 148 159) no Hoare annotation was computed. [2019-10-13 21:20:24,939 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:20:24,939 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:20:24,939 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:20:24,939 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 160 168) the Hoare annotation is: true [2019-10-13 21:20:24,939 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 160 168) no Hoare annotation was computed. [2019-10-13 21:20:24,940 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 160 168) no Hoare annotation was computed. [2019-10-13 21:20:24,940 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 224 247) the Hoare annotation is: (let ((.cse1 (= 1 ~waterLevel~0)) (.cse10 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= |old(~waterLevel~0)| 1))) (let ((.cse2 (not .cse5)) (.cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse10)) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not .cse1)) (.cse8 (= ~systemActive~0 0)) (.cse9 (and (= ~pumpRunning~0 0) .cse10)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6) (or .cse4 .cse0 .cse1 .cse2) (or .cse7 .cse4 .cse8) (or .cse4 .cse0 .cse9) (or .cse5 .cse0 .cse3 .cse6) (or .cse8 .cse7 .cse3) (or .cse4 .cse5 .cse6 .cse8) (or .cse6 .cse5 .cse8 .cse3) (or .cse9 .cse0 .cse3)))) [2019-10-13 21:20:24,940 INFO L439 ceAbstractionStarter]: At program point L237(line 237) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| 1)) (.cse6 (= 1 ~waterLevel~0))) (let ((.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not .cse6)) (.cse10 (= ~systemActive~0 0)) (.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~systemActive~0))) (.cse7 (not .cse1))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5) (or .cse5 .cse6 .cse7 .cse8) (or .cse5 (and .cse3 .cse4) .cse8) (or .cse9 .cse10 .cse8) (or .cse1 .cse5 .cse8 .cse2) (or .cse0 .cse10 .cse9) (or .cse0 .cse5 (and .cse6 .cse3) .cse7)))) [2019-10-13 21:20:24,940 INFO L439 ceAbstractionStarter]: At program point L235(lines 235 241) the Hoare annotation is: (let ((.cse4 (= 1 ~waterLevel~0)) (.cse10 (= ~pumpRunning~0 0)) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (not .cse7)) (.cse0 (and .cse10 .cse3)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not .cse4)) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse9 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2 (and (not (= 0 ~systemActive~0)) .cse3)) (or .cse1 .cse4 .cse5 .cse2) (or .cse6 .cse7 .cse1 .cse8) (or .cse6 .cse1 .cse4 .cse5) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0) .cse9 .cse2 .cse10) (or .cse6 .cse1 .cse0) (or .cse7 .cse1 .cse2 .cse8) (or .cse6 .cse9 .cse10)))) [2019-10-13 21:20:24,941 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 224 247) no Hoare annotation was computed. [2019-10-13 21:20:24,941 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 224 247) no Hoare annotation was computed. [2019-10-13 21:20:24,941 INFO L439 ceAbstractionStarter]: At program point L230(line 230) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= ~systemActive~0 0)) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1) (or .cse2 .cse0 .cse3) (or .cse1 .cse4) (or .cse3 .cse2 .cse4))) [2019-10-13 21:20:24,941 INFO L443 ceAbstractionStarter]: For program point L228(lines 227 246) no Hoare annotation was computed. [2019-10-13 21:20:24,941 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 866 895) no Hoare annotation was computed. [2019-10-13 21:20:24,941 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 866 895) the Hoare annotation is: true [2019-10-13 21:20:24,941 INFO L446 ceAbstractionStarter]: At program point L891(lines 866 895) the Hoare annotation is: true [2019-10-13 21:20:24,941 INFO L443 ceAbstractionStarter]: For program point L887(line 887) no Hoare annotation was computed. [2019-10-13 21:20:24,941 INFO L443 ceAbstractionStarter]: For program point L880(lines 880 884) no Hoare annotation was computed. [2019-10-13 21:20:24,942 INFO L446 ceAbstractionStarter]: At program point L880-1(lines 880 884) the Hoare annotation is: true [2019-10-13 21:20:24,942 INFO L443 ceAbstractionStarter]: For program point L877(line 877) no Hoare annotation was computed. [2019-10-13 21:20:24,942 INFO L446 ceAbstractionStarter]: At program point L876-2(lines 876 890) the Hoare annotation is: true [2019-10-13 21:20:24,942 INFO L446 ceAbstractionStarter]: At program point L872(line 872) the Hoare annotation is: true [2019-10-13 21:20:24,942 INFO L443 ceAbstractionStarter]: For program point L872-1(line 872) no Hoare annotation was computed. [2019-10-13 21:20:24,942 INFO L443 ceAbstractionStarter]: For program point L128-1(lines 124 135) no Hoare annotation was computed. [2019-10-13 21:20:24,942 INFO L439 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 124 135) the Hoare annotation is: (let ((.cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 (or .cse1 (not (= ~methaneLevelCritical~0 0)))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2019-10-13 21:20:24,942 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 124 135) no Hoare annotation was computed. [2019-10-13 21:20:24,943 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 920 926) no Hoare annotation was computed. [2019-10-13 21:20:24,943 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 920 926) the Hoare annotation is: true [2019-10-13 21:20:24,943 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:20:24,943 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 21:20:24,943 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:20:24,943 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:20:24,943 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 136 147) no Hoare annotation was computed. [2019-10-13 21:20:24,943 INFO L443 ceAbstractionStarter]: For program point L140-1(lines 136 147) no Hoare annotation was computed. [2019-10-13 21:20:24,944 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 136 147) the Hoare annotation is: (let ((.cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse4 (= 1 ~waterLevel~0)) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (or .cse2 .cse3)) (or .cse1 (or (= ~systemActive~0 0) .cse3)) (or .cse0 .cse2 .cse4 .cse5) (or .cse2 .cse4 .cse5 .cse3))) [2019-10-13 21:20:24,944 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 69 76) no Hoare annotation was computed. [2019-10-13 21:20:24,944 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 69 76) the Hoare annotation is: true [2019-10-13 21:20:24,944 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 69 76) no Hoare annotation was computed. [2019-10-13 21:20:24,944 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2019-10-13 21:20:24,944 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 43 67) the Hoare annotation is: true [2019-10-13 21:20:24,945 INFO L439 ceAbstractionStarter]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= 0 ~pumpRunning~0)))) (and (or (= ~systemActive~0 0) .cse0) (or .cse1 .cse0) (or (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2019-10-13 21:20:24,945 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 43 67) no Hoare annotation was computed. [2019-10-13 21:20:24,945 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2019-10-13 21:20:24,945 INFO L439 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~systemActive~0 0) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0))) [2019-10-13 21:20:24,945 INFO L443 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2019-10-13 21:20:24,945 INFO L443 ceAbstractionStarter]: For program point L51(lines 51 64) no Hoare annotation was computed. [2019-10-13 21:20:24,945 INFO L443 ceAbstractionStarter]: For program point L51-1(lines 43 67) no Hoare annotation was computed. [2019-10-13 21:20:24,945 INFO L446 ceAbstractionStarter]: At program point L49(line 49) the Hoare annotation is: true [2019-10-13 21:20:24,945 INFO L443 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2019-10-13 21:20:24,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:20:24 BoogieIcfgContainer [2019-10-13 21:20:24,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:20:24,962 INFO L168 Benchmark]: Toolchain (without parser) took 19786.82 ms. Allocated memory was 137.4 MB in the beginning and 562.6 MB in the end (delta: 425.2 MB). Free memory was 101.2 MB in the beginning and 324.5 MB in the end (delta: -223.3 MB). Peak memory consumption was 447.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:24,963 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-13 21:20:24,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.21 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 101.0 MB in the beginning and 168.1 MB in the end (delta: -67.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:24,965 INFO L168 Benchmark]: Boogie Preprocessor took 90.86 ms. Allocated memory is still 201.3 MB. Free memory was 168.1 MB in the beginning and 163.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:24,965 INFO L168 Benchmark]: RCFGBuilder took 1208.84 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 163.9 MB in the beginning and 196.0 MB in the end (delta: -32.2 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:24,966 INFO L168 Benchmark]: TraceAbstraction took 17802.35 ms. Allocated memory was 232.3 MB in the beginning and 562.6 MB in the end (delta: 330.3 MB). Free memory was 196.0 MB in the beginning and 324.5 MB in the end (delta: -128.4 MB). Peak memory consumption was 447.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:24,970 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.21 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 101.0 MB in the beginning and 168.1 MB in the end (delta: -67.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.86 ms. Allocated memory is still 201.3 MB. Free memory was 168.1 MB in the beginning and 163.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1208.84 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 163.9 MB in the beginning and 196.0 MB in the end (delta: -32.2 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17802.35 ms. Allocated memory was 232.3 MB in the beginning and 562.6 MB in the end (delta: 330.3 MB). Free memory was 196.0 MB in the beginning and 324.5 MB in the end (delta: -128.4 MB). Peak memory consumption was 447.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: 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: 442]: Loop Invariant Derived loop invariant: (((((((0 == methaneLevelCritical && 0 == splverifierCounter) && !(0 == systemActive)) || !(0 == \old(pumpRunning))) || ((0 == splverifierCounter && 1 <= methaneLevelCritical) && pumpRunning == 0)) || !(\old(systemActive) == 1)) || ((0 == methaneLevelCritical && 0 == splverifierCounter) && pumpRunning == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. Result: SAFE, OverallTime: 17.7s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, HoareTripleCheckerStatistics: 2103 SDtfs, 1134 SDslu, 5018 SDs, 0 SdLazy, 1785 SolverSat, 260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 934 GetRequests, 826 SyntacticMatches, 14 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2117occurred 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: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 388 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 5311 PreInvPairs, 5687 NumberOfFragments, 1865 HoareAnnotationTreeSize, 5311 FomulaSimplifications, 10197 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 63 FomulaSimplificationsInter, 22506 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1380 NumberOfCodeBlocks, 1380 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1775 ConstructedInterpolants, 0 QuantifiedInterpolants, 324747 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2566 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 302/318 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...