/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:08:02,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:08:02,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:08:02,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:08:02,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:08:02,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:08:02,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:08:02,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:08:02,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:08:02,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:08:02,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:08:02,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:08:02,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:08:02,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:08:02,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:08:02,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:08:02,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:08:02,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:08:02,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:08:02,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:08:02,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:08:02,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:08:02,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:08:02,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:08:03,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:08:03,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:08:03,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:08:03,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:08:03,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:08:03,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:08:03,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:08:03,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:08:03,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:08:03,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:08:03,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:08:03,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:08:03,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:08:03,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:08:03,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:08:03,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:08:03,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:08:03,011 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 01:08:03,038 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:08:03,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:08:03,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:08:03,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:08:03,039 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:08:03,039 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:08:03,040 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:08:03,040 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:08:03,040 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:08:03,040 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:08:03,041 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:08:03,041 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:08:03,041 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:08:03,041 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:08:03,041 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:08:03,041 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:08:03,041 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:08:03,041 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:08:03,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:08:03,042 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:08:03,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:08:03,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:08:03,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:08:03,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:08:03,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:08:03,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:08:03,043 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:08:03,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:08:03,043 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:08:03,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:08:03,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:08:03,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:08:03,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:08:03,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:08:03,044 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:08:03,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:08:03,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:08:03,044 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:08:03,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:08:03,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:08:03,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:08:03,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:08:03,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:08:03,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:08:03,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:08:03,296 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:08:03,296 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:08:03,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2023-04-03 01:08:04,458 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:08:04,710 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:08:04,711 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2023-04-03 01:08:04,726 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26efffebc/5c70a1d18aea4e499618956595853495/FLAG8a841ed00 [2023-04-03 01:08:04,739 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26efffebc/5c70a1d18aea4e499618956595853495 [2023-04-03 01:08:04,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:08:04,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:08:04,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:08:04,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:08:04,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:08:04,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:08:04" (1/1) ... [2023-04-03 01:08:04,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48708e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:04, skipping insertion in model container [2023-04-03 01:08:04,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:08:04" (1/1) ... [2023-04-03 01:08:04,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:08:04,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:08:04,971 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c[15018,15031] [2023-04-03 01:08:04,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:08:04,996 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:08:05,069 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c[15018,15031] [2023-04-03 01:08:05,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:08:05,106 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:08:05,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05 WrapperNode [2023-04-03 01:08:05,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:08:05,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:08:05,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:08:05,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:08:05,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (1/1) ... [2023-04-03 01:08:05,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (1/1) ... [2023-04-03 01:08:05,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (1/1) ... [2023-04-03 01:08:05,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (1/1) ... [2023-04-03 01:08:05,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (1/1) ... [2023-04-03 01:08:05,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (1/1) ... [2023-04-03 01:08:05,171 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (1/1) ... [2023-04-03 01:08:05,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (1/1) ... [2023-04-03 01:08:05,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:08:05,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:08:05,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:08:05,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:08:05,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (1/1) ... [2023-04-03 01:08:05,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:08:05,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:05,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 01:08:05,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 01:08:05,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:08:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:08:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:08:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:08:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:08:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:08:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:08:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:08:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:08:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:08:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:08:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:08:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:08:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:08:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:08:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:08:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:08:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-03 01:08:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-03 01:08:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:08:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:08:05,258 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:08:05,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-03 01:08:05,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-03 01:08:05,258 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-03 01:08:05,258 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:08:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:08:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:08:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:08:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:08:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:08:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:08:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:08:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:08:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:08:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:08:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:08:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:08:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:08:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:08:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:08:05,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:08:05,263 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:08:05,263 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:08:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:08:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:08:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:08:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:08:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:08:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:08:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-03 01:08:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-03 01:08:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:08:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:08:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-03 01:08:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:08:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 01:08:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-03 01:08:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:08:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-03 01:08:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-04-03 01:08:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:08:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-03 01:08:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:08:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:08:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:08:05,452 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:08:05,454 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:08:06,036 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:08:06,144 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:08:06,145 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:08:06,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:08:06 BoogieIcfgContainer [2023-04-03 01:08:06,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:08:06,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:08:06,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:08:06,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:08:06,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:08:04" (1/3) ... [2023-04-03 01:08:06,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201ff9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:08:06, skipping insertion in model container [2023-04-03 01:08:06,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:08:05" (2/3) ... [2023-04-03 01:08:06,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201ff9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:08:06, skipping insertion in model container [2023-04-03 01:08:06,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:08:06" (3/3) ... [2023-04-03 01:08:06,154 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2023-04-03 01:08:06,169 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:08:06,170 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:08:06,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:08:06,217 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a799bb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:08:06,217 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:08:06,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 79 states have (on average 1.2784810126582278) internal successors, (101), 96 states have internal predecessors, (101), 54 states have call successors, (54), 33 states have call predecessors, (54), 33 states have return successors, (54), 48 states have call predecessors, (54), 54 states have call successors, (54) [2023-04-03 01:08:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 01:08:06,228 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:06,229 INFO L195 NwaCegarLoop]: 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] [2023-04-03 01:08:06,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:06,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:06,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1769465352, now seen corresponding path program 1 times [2023-04-03 01:08:06,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:06,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596035946] [2023-04-03 01:08:06,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:06,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:08:06,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:06,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596035946] [2023-04-03 01:08:06,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596035946] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:06,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:08:06,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:08:06,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91174122] [2023-04-03 01:08:06,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:06,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:08:06,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:06,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:08:06,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:08:06,509 INFO L87 Difference]: Start difference. First operand has 169 states, 79 states have (on average 1.2784810126582278) internal successors, (101), 96 states have internal predecessors, (101), 54 states have call successors, (54), 33 states have call predecessors, (54), 33 states have return successors, (54), 48 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:08:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:06,612 INFO L93 Difference]: Finished difference Result 271 states and 332 transitions. [2023-04-03 01:08:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:08:06,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-03 01:08:06,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:06,623 INFO L225 Difference]: With dead ends: 271 [2023-04-03 01:08:06,623 INFO L226 Difference]: Without dead ends: 136 [2023-04-03 01:08:06,626 INFO L412 NwaCegarLoop]: 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 [2023-04-03 01:08:06,629 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:06,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:08:06,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-04-03 01:08:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2023-04-03 01:08:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 84 states have internal predecessors, (87), 39 states have call successors, (39), 31 states have call predecessors, (39), 26 states have return successors, (34), 28 states have call predecessors, (34), 34 states have call successors, (34) [2023-04-03 01:08:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 160 transitions. [2023-04-03 01:08:06,680 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 160 transitions. Word has length 42 [2023-04-03 01:08:06,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:06,681 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 160 transitions. [2023-04-03 01:08:06,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:08:06,681 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 160 transitions. [2023-04-03 01:08:06,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 01:08:06,683 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:06,683 INFO L195 NwaCegarLoop]: 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] [2023-04-03 01:08:06,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:08:06,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:06,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:06,684 INFO L85 PathProgramCache]: Analyzing trace with hash 898955910, now seen corresponding path program 1 times [2023-04-03 01:08:06,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:06,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248563506] [2023-04-03 01:08:06,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:06,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:08:06,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:06,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248563506] [2023-04-03 01:08:06,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248563506] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:06,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:08:06,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:08:06,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125161531] [2023-04-03 01:08:06,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:06,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:08:06,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:06,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:08:06,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:08:06,808 INFO L87 Difference]: Start difference. First operand 136 states and 160 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:08:06,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:06,882 INFO L93 Difference]: Finished difference Result 222 states and 260 transitions. [2023-04-03 01:08:06,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:08:06,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-03 01:08:06,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:06,884 INFO L225 Difference]: With dead ends: 222 [2023-04-03 01:08:06,884 INFO L226 Difference]: Without dead ends: 128 [2023-04-03 01:08:06,885 INFO L412 NwaCegarLoop]: 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 [2023-04-03 01:08:06,886 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 11 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 248 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:08:06,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-04-03 01:08:06,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-04-03 01:08:06,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 79 states have internal predecessors, (81), 36 states have call successors, (36), 30 states have call predecessors, (36), 26 states have return successors, (32), 26 states have call predecessors, (32), 32 states have call successors, (32) [2023-04-03 01:08:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2023-04-03 01:08:06,898 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 43 [2023-04-03 01:08:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:06,898 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2023-04-03 01:08:06,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:08:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2023-04-03 01:08:06,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-03 01:08:06,900 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:06,900 INFO L195 NwaCegarLoop]: 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] [2023-04-03 01:08:06,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:08:06,901 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:06,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:06,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2146183357, now seen corresponding path program 1 times [2023-04-03 01:08:06,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:06,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23659300] [2023-04-03 01:08:06,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:06,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:08:07,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:07,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23659300] [2023-04-03 01:08:07,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23659300] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:07,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:08:07,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:08:07,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773211078] [2023-04-03 01:08:07,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:07,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:08:07,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:07,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:08:07,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:08:07,218 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 01:08:07,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:07,551 INFO L93 Difference]: Finished difference Result 384 states and 460 transitions. [2023-04-03 01:08:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:08:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 46 [2023-04-03 01:08:07,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:07,567 INFO L225 Difference]: With dead ends: 384 [2023-04-03 01:08:07,567 INFO L226 Difference]: Without dead ends: 278 [2023-04-03 01:08:07,573 INFO L412 NwaCegarLoop]: 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 [2023-04-03 01:08:07,576 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 251 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:07,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 597 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:08:07,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-04-03 01:08:07,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 270. [2023-04-03 01:08:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 143 states have (on average 1.2727272727272727) internal successors, (182), 171 states have internal predecessors, (182), 72 states have call successors, (72), 60 states have call predecessors, (72), 54 states have return successors, (69), 52 states have call predecessors, (69), 68 states have call successors, (69) [2023-04-03 01:08:07,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 323 transitions. [2023-04-03 01:08:07,612 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 323 transitions. Word has length 46 [2023-04-03 01:08:07,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:07,612 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 323 transitions. [2023-04-03 01:08:07,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 01:08:07,613 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 323 transitions. [2023-04-03 01:08:07,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 01:08:07,616 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:07,616 INFO L195 NwaCegarLoop]: 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] [2023-04-03 01:08:07,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:08:07,616 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:07,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash 690955090, now seen corresponding path program 1 times [2023-04-03 01:08:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:07,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987005064] [2023-04-03 01:08:07,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:07,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:07,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:08:07,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:07,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987005064] [2023-04-03 01:08:07,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987005064] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:07,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:08:07,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-03 01:08:07,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941233970] [2023-04-03 01:08:07,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:07,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-03 01:08:07,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:07,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-03 01:08:07,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:08:07,849 INFO L87 Difference]: Start difference. First operand 270 states and 323 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:08:08,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:08,745 INFO L93 Difference]: Finished difference Result 1102 states and 1512 transitions. [2023-04-03 01:08:08,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-03 01:08:08,745 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 51 [2023-04-03 01:08:08,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:08,751 INFO L225 Difference]: With dead ends: 1102 [2023-04-03 01:08:08,751 INFO L226 Difference]: Without dead ends: 854 [2023-04-03 01:08:08,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2023-04-03 01:08:08,753 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 464 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:08,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 528 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 01:08:08,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2023-04-03 01:08:08,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 774. [2023-04-03 01:08:08,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 454 states have (on average 1.2577092511013215) internal successors, (571), 504 states have internal predecessors, (571), 167 states have call successors, (167), 138 states have call predecessors, (167), 152 states have return successors, (262), 164 states have call predecessors, (262), 163 states have call successors, (262) [2023-04-03 01:08:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1000 transitions. [2023-04-03 01:08:08,832 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1000 transitions. Word has length 51 [2023-04-03 01:08:08,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:08,833 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1000 transitions. [2023-04-03 01:08:08,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:08:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1000 transitions. [2023-04-03 01:08:08,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-03 01:08:08,836 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:08,836 INFO L195 NwaCegarLoop]: 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] [2023-04-03 01:08:08,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:08:08,836 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:08,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:08,837 INFO L85 PathProgramCache]: Analyzing trace with hash -166549922, now seen corresponding path program 1 times [2023-04-03 01:08:08,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:08,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120750172] [2023-04-03 01:08:08,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:08,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:08:08,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:08,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120750172] [2023-04-03 01:08:08,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120750172] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:08,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:08:08,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:08:08,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870838866] [2023-04-03 01:08:08,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:08,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:08:08,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:08,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:08:08,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:08:08,916 INFO L87 Difference]: Start difference. First operand 774 states and 1000 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 01:08:09,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:09,116 INFO L93 Difference]: Finished difference Result 1349 states and 1707 transitions. [2023-04-03 01:08:09,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:08:09,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2023-04-03 01:08:09,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:09,121 INFO L225 Difference]: With dead ends: 1349 [2023-04-03 01:08:09,121 INFO L226 Difference]: Without dead ends: 750 [2023-04-03 01:08:09,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:08:09,123 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 104 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:09,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 535 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:08:09,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-04-03 01:08:09,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 672. [2023-04-03 01:08:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 384 states have (on average 1.1979166666666667) internal successors, (460), 415 states have internal predecessors, (460), 137 states have call successors, (137), 131 states have call predecessors, (137), 150 states have return successors, (192), 143 states have call predecessors, (192), 133 states have call successors, (192) [2023-04-03 01:08:09,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 789 transitions. [2023-04-03 01:08:09,193 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 789 transitions. Word has length 54 [2023-04-03 01:08:09,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:09,193 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 789 transitions. [2023-04-03 01:08:09,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 01:08:09,193 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 789 transitions. [2023-04-03 01:08:09,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-03 01:08:09,196 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:09,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:08:09,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:08:09,197 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:09,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:09,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1395263698, now seen corresponding path program 1 times [2023-04-03 01:08:09,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:09,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738604948] [2023-04-03 01:08:09,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:09,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:09,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:08:09,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:09,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738604948] [2023-04-03 01:08:09,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738604948] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:09,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:08:09,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-03 01:08:09,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284195531] [2023-04-03 01:08:09,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:09,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-03 01:08:09,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:09,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-03 01:08:09,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-03 01:08:09,550 INFO L87 Difference]: Start difference. First operand 672 states and 789 transitions. Second operand has 11 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 5 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2023-04-03 01:08:11,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:11,076 INFO L93 Difference]: Finished difference Result 1907 states and 2400 transitions. [2023-04-03 01:08:11,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-03 01:08:11,077 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 5 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) Word has length 89 [2023-04-03 01:08:11,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:11,086 INFO L225 Difference]: With dead ends: 1907 [2023-04-03 01:08:11,086 INFO L226 Difference]: Without dead ends: 1493 [2023-04-03 01:08:11,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=1244, Unknown=0, NotChecked=0, Total=1560 [2023-04-03 01:08:11,090 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 701 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:11,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 434 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-03 01:08:11,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2023-04-03 01:08:11,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1281. [2023-04-03 01:08:11,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 745 states have (on average 1.185234899328859) internal successors, (883), 802 states have internal predecessors, (883), 253 states have call successors, (253), 245 states have call predecessors, (253), 282 states have return successors, (347), 268 states have call predecessors, (347), 249 states have call successors, (347) [2023-04-03 01:08:11,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1483 transitions. [2023-04-03 01:08:11,219 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1483 transitions. Word has length 89 [2023-04-03 01:08:11,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:11,220 INFO L495 AbstractCegarLoop]: Abstraction has 1281 states and 1483 transitions. [2023-04-03 01:08:11,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 5 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2023-04-03 01:08:11,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1483 transitions. [2023-04-03 01:08:11,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-03 01:08:11,230 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:11,230 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-03 01:08:11,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 01:08:11,231 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:11,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:11,232 INFO L85 PathProgramCache]: Analyzing trace with hash -454564876, now seen corresponding path program 1 times [2023-04-03 01:08:11,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:11,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983989384] [2023-04-03 01:08:11,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:11,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 01:08:11,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:11,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983989384] [2023-04-03 01:08:11,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983989384] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:11,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734829403] [2023-04-03 01:08:11,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:11,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:11,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:11,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:08:11,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 01:08:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:11,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-03 01:08:11,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:08:11,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:08:11,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734829403] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:11,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:08:11,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-04-03 01:08:11,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524245801] [2023-04-03 01:08:11,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:11,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:08:11,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:11,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:08:11,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-03 01:08:11,673 INFO L87 Difference]: Start difference. First operand 1281 states and 1483 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-04-03 01:08:11,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:11,834 INFO L93 Difference]: Finished difference Result 2015 states and 2364 transitions. [2023-04-03 01:08:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:08:11,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 150 [2023-04-03 01:08:11,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:11,840 INFO L225 Difference]: With dead ends: 2015 [2023-04-03 01:08:11,840 INFO L226 Difference]: Without dead ends: 1127 [2023-04-03 01:08:11,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-03 01:08:11,843 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 61 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:11,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 277 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:08:11,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-04-03 01:08:11,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1119. [2023-04-03 01:08:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 652 states have (on average 1.1687116564417177) internal successors, (762), 704 states have internal predecessors, (762), 218 states have call successors, (218), 212 states have call predecessors, (218), 248 states have return successors, (270), 235 states have call predecessors, (270), 214 states have call successors, (270) [2023-04-03 01:08:11,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1250 transitions. [2023-04-03 01:08:11,937 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1250 transitions. Word has length 150 [2023-04-03 01:08:11,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:11,938 INFO L495 AbstractCegarLoop]: Abstraction has 1119 states and 1250 transitions. [2023-04-03 01:08:11,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-04-03 01:08:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1250 transitions. [2023-04-03 01:08:11,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-03 01:08:11,942 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:11,942 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-03 01:08:11,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 01:08:12,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:12,149 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:12,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:12,149 INFO L85 PathProgramCache]: Analyzing trace with hash 237094354, now seen corresponding path program 1 times [2023-04-03 01:08:12,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:12,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333121385] [2023-04-03 01:08:12,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:12,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 01:08:12,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:12,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333121385] [2023-04-03 01:08:12,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333121385] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:12,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686136909] [2023-04-03 01:08:12,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:12,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:12,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:12,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:08:12,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 01:08:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:12,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 33 conjunts are in the unsatisfiable core [2023-04-03 01:08:12,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:13,137 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:08:13,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:08:13,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686136909] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:13,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:08:13,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 22 [2023-04-03 01:08:13,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661245080] [2023-04-03 01:08:13,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:13,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 01:08:13,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:13,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 01:08:13,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-04-03 01:08:13,140 INFO L87 Difference]: Start difference. First operand 1119 states and 1250 transitions. Second operand has 14 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-03 01:08:14,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:14,424 INFO L93 Difference]: Finished difference Result 2580 states and 3031 transitions. [2023-04-03 01:08:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-03 01:08:14,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) Word has length 146 [2023-04-03 01:08:14,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:14,432 INFO L225 Difference]: With dead ends: 2580 [2023-04-03 01:08:14,432 INFO L226 Difference]: Without dead ends: 1483 [2023-04-03 01:08:14,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2023-04-03 01:08:14,435 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 277 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:14,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 372 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 01:08:14,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2023-04-03 01:08:14,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1456. [2023-04-03 01:08:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 875 states have (on average 1.1737142857142857) internal successors, (1027), 934 states have internal predecessors, (1027), 287 states have call successors, (287), 283 states have call predecessors, (287), 293 states have return successors, (361), 290 states have call predecessors, (361), 283 states have call successors, (361) [2023-04-03 01:08:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1675 transitions. [2023-04-03 01:08:14,599 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1675 transitions. Word has length 146 [2023-04-03 01:08:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:14,599 INFO L495 AbstractCegarLoop]: Abstraction has 1456 states and 1675 transitions. [2023-04-03 01:08:14,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-03 01:08:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1675 transitions. [2023-04-03 01:08:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-03 01:08:14,604 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:14,604 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-04-03 01:08:14,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 01:08:14,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-04-03 01:08:14,812 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:14,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:14,813 INFO L85 PathProgramCache]: Analyzing trace with hash -331660986, now seen corresponding path program 1 times [2023-04-03 01:08:14,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120174355] [2023-04-03 01:08:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:14,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:15,208 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-03 01:08:15,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:15,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120174355] [2023-04-03 01:08:15,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120174355] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:15,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072988445] [2023-04-03 01:08:15,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:15,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:15,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:15,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:08:15,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 01:08:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:15,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:08:15,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:15,786 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-03 01:08:15,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:08:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-03 01:08:16,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072988445] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:08:16,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1362284278] [2023-04-03 01:08:16,665 INFO L159 IcfgInterpreter]: Started Sifa with 114 locations of interest [2023-04-03 01:08:16,665 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:08:16,669 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:08:16,673 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:08:16,673 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:08:16,835 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:08:16,879 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:08:17,090 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:08:17,104 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:08:19,959 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:08:19,965 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 36 for LOIs [2023-04-03 01:08:20,177 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 36 for LOIs [2023-04-03 01:08:20,183 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:08:20,327 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 27 for LOIs [2023-04-03 01:08:20,451 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:08:20,581 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:08:20,653 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:08:20,658 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:08:20,712 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 20 for LOIs [2023-04-03 01:08:20,726 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 20 for LOIs [2023-04-03 01:08:20,728 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-04-03 01:08:20,730 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:08:20,735 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:08:20,790 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:08:20,793 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:08:20,795 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:08:20,796 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:08:20,847 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:08:20,849 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:08:20,851 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:08:20,853 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:08:20,856 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:08:20,858 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:08:25,376 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24446#(and (<= 1 |#StackHeapBarrier|) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-03 01:08:25,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:08:25,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:08:25,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 17] total 36 [2023-04-03 01:08:25,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672567426] [2023-04-03 01:08:25,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:08:25,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-04-03 01:08:25,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:25,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-04-03 01:08:25,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=661, Invalid=8081, Unknown=0, NotChecked=0, Total=8742 [2023-04-03 01:08:25,382 INFO L87 Difference]: Start difference. First operand 1456 states and 1675 transitions. Second operand has 36 states, 25 states have (on average 6.0) internal successors, (150), 29 states have internal predecessors, (150), 11 states have call successors, (68), 12 states have call predecessors, (68), 18 states have return successors, (60), 18 states have call predecessors, (60), 11 states have call successors, (60) [2023-04-03 01:08:29,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:29,077 INFO L93 Difference]: Finished difference Result 5641 states and 7338 transitions. [2023-04-03 01:08:29,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-04-03 01:08:29,078 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 25 states have (on average 6.0) internal successors, (150), 29 states have internal predecessors, (150), 11 states have call successors, (68), 12 states have call predecessors, (68), 18 states have return successors, (60), 18 states have call predecessors, (60), 11 states have call successors, (60) Word has length 149 [2023-04-03 01:08:29,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:29,101 INFO L225 Difference]: With dead ends: 5641 [2023-04-03 01:08:29,102 INFO L226 Difference]: Without dead ends: 4901 [2023-04-03 01:08:29,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 360 SyntacticMatches, 18 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7722 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1340, Invalid=15690, Unknown=0, NotChecked=0, Total=17030 [2023-04-03 01:08:29,113 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 1210 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 4017 mSolverCounterSat, 930 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 4947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 930 IncrementalHoareTripleChecker+Valid, 4017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:29,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 1206 Invalid, 4947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [930 Valid, 4017 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-03 01:08:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4901 states. [2023-04-03 01:08:29,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4901 to 4106. [2023-04-03 01:08:29,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4106 states, 2469 states have (on average 1.1713244228432564) internal successors, (2892), 2624 states have internal predecessors, (2892), 812 states have call successors, (812), 796 states have call predecessors, (812), 824 states have return successors, (1116), 815 states have call predecessors, (1116), 808 states have call successors, (1116) [2023-04-03 01:08:29,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4106 states to 4106 states and 4820 transitions. [2023-04-03 01:08:29,517 INFO L78 Accepts]: Start accepts. Automaton has 4106 states and 4820 transitions. Word has length 149 [2023-04-03 01:08:29,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:29,519 INFO L495 AbstractCegarLoop]: Abstraction has 4106 states and 4820 transitions. [2023-04-03 01:08:29,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 25 states have (on average 6.0) internal successors, (150), 29 states have internal predecessors, (150), 11 states have call successors, (68), 12 states have call predecessors, (68), 18 states have return successors, (60), 18 states have call predecessors, (60), 11 states have call successors, (60) [2023-04-03 01:08:29,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4106 states and 4820 transitions. [2023-04-03 01:08:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-04-03 01:08:29,526 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:29,526 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:08:29,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 01:08:29,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:29,736 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:29,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:29,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2039256926, now seen corresponding path program 2 times [2023-04-03 01:08:29,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:29,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539479481] [2023-04-03 01:08:29,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:29,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:30,544 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 37 proven. 20 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-04-03 01:08:30,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:30,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539479481] [2023-04-03 01:08:30,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539479481] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:30,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003324602] [2023-04-03 01:08:30,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-04-03 01:08:30,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:30,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:30,549 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:08:30,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 01:08:30,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-04-03 01:08:30,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-03 01:08:30,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 43 conjunts are in the unsatisfiable core [2023-04-03 01:08:30,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:31,223 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-03 01:08:31,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:08:31,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003324602] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:31,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:08:31,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2023-04-03 01:08:31,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242541151] [2023-04-03 01:08:31,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:31,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-03 01:08:31,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:31,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-03 01:08:31,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2023-04-03 01:08:31,226 INFO L87 Difference]: Start difference. First operand 4106 states and 4820 transitions. Second operand has 12 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 4 states have call successors, (44), 4 states have call predecessors, (44), 6 states have return successors, (40), 6 states have call predecessors, (40), 4 states have call successors, (40) [2023-04-03 01:08:32,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:32,385 INFO L93 Difference]: Finished difference Result 7808 states and 9206 transitions. [2023-04-03 01:08:32,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-03 01:08:32,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 4 states have call successors, (44), 4 states have call predecessors, (44), 6 states have return successors, (40), 6 states have call predecessors, (40), 4 states have call successors, (40) Word has length 209 [2023-04-03 01:08:32,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:32,408 INFO L225 Difference]: With dead ends: 7808 [2023-04-03 01:08:32,408 INFO L226 Difference]: Without dead ends: 4396 [2023-04-03 01:08:32,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2023-04-03 01:08:32,417 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 128 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:32,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1319 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 01:08:32,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2023-04-03 01:08:32,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4259. [2023-04-03 01:08:32,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4259 states, 2563 states have (on average 1.167381974248927) internal successors, (2992), 2717 states have internal predecessors, (2992), 842 states have call successors, (842), 828 states have call predecessors, (842), 853 states have return successors, (1153), 843 states have call predecessors, (1153), 838 states have call successors, (1153) [2023-04-03 01:08:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4259 states to 4259 states and 4987 transitions. [2023-04-03 01:08:32,810 INFO L78 Accepts]: Start accepts. Automaton has 4259 states and 4987 transitions. Word has length 209 [2023-04-03 01:08:32,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:32,811 INFO L495 AbstractCegarLoop]: Abstraction has 4259 states and 4987 transitions. [2023-04-03 01:08:32,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 4 states have call successors, (44), 4 states have call predecessors, (44), 6 states have return successors, (40), 6 states have call predecessors, (40), 4 states have call successors, (40) [2023-04-03 01:08:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 4259 states and 4987 transitions. [2023-04-03 01:08:32,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-04-03 01:08:32,817 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:32,817 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:08:32,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 01:08:33,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:33,024 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:33,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:33,025 INFO L85 PathProgramCache]: Analyzing trace with hash 171955461, now seen corresponding path program 1 times [2023-04-03 01:08:33,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:33,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355761016] [2023-04-03 01:08:33,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:33,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:33,102 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-04-03 01:08:33,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:33,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355761016] [2023-04-03 01:08:33,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355761016] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:33,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988444139] [2023-04-03 01:08:33,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:33,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:33,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:33,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:08:33,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-03 01:08:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:33,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-03 01:08:33,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:33,281 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-04-03 01:08:33,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:08:33,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988444139] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:33,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:08:33,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2023-04-03 01:08:33,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382960992] [2023-04-03 01:08:33,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:33,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:08:33,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:33,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:08:33,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 01:08:33,284 INFO L87 Difference]: Start difference. First operand 4259 states and 4987 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-03 01:08:33,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:33,489 INFO L93 Difference]: Finished difference Result 5038 states and 5965 transitions. [2023-04-03 01:08:33,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:08:33,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 214 [2023-04-03 01:08:33,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:33,497 INFO L225 Difference]: With dead ends: 5038 [2023-04-03 01:08:33,498 INFO L226 Difference]: Without dead ends: 1796 [2023-04-03 01:08:33,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 01:08:33,504 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 38 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:33,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 285 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:08:33,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2023-04-03 01:08:33,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1570. [2023-04-03 01:08:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 931 states have (on average 1.1095596133190118) internal successors, (1033), 969 states have internal predecessors, (1033), 317 states have call successors, (317), 312 states have call predecessors, (317), 321 states have return successors, (423), 319 states have call predecessors, (423), 313 states have call successors, (423) [2023-04-03 01:08:33,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1773 transitions. [2023-04-03 01:08:33,648 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1773 transitions. Word has length 214 [2023-04-03 01:08:33,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:33,648 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 1773 transitions. [2023-04-03 01:08:33,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-03 01:08:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1773 transitions. [2023-04-03 01:08:33,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-04-03 01:08:33,651 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:33,651 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:08:33,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-03 01:08:33,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-04-03 01:08:33,858 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:33,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:33,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1973482691, now seen corresponding path program 1 times [2023-04-03 01:08:33,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:33,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797680872] [2023-04-03 01:08:33,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:33,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:34,110 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 65 proven. 46 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-04-03 01:08:34,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:34,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797680872] [2023-04-03 01:08:34,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797680872] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:34,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937207733] [2023-04-03 01:08:34,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:34,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:34,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:34,112 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:08:34,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-03 01:08:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:34,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 56 conjunts are in the unsatisfiable core [2023-04-03 01:08:34,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:34,839 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 165 proven. 27 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-04-03 01:08:34,840 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:08:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 73 proven. 7 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-04-03 01:08:36,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937207733] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:08:36,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1562151622] [2023-04-03 01:08:36,672 INFO L159 IcfgInterpreter]: Started Sifa with 117 locations of interest [2023-04-03 01:08:36,672 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:08:36,672 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:08:36,673 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:08:36,673 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:08:36,808 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:08:36,837 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:08:36,939 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:08:36,949 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:08:39,215 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:08:39,221 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 36 for LOIs [2023-04-03 01:08:39,365 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 36 for LOIs [2023-04-03 01:08:39,369 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:08:39,495 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 27 for LOIs [2023-04-03 01:08:39,602 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:08:39,732 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:08:39,798 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:08:39,802 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:08:39,862 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 20 for LOIs [2023-04-03 01:08:39,874 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 20 for LOIs [2023-04-03 01:08:39,876 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-04-03 01:08:39,878 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:08:39,879 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:08:39,932 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:08:39,935 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:08:39,936 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:08:39,937 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:08:39,962 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:08:39,963 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:08:39,965 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:08:39,967 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:08:39,969 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:08:39,970 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:08:45,517 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '67532#(and (<= 1 |#StackHeapBarrier|) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-03 01:08:45,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:08:45,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:08:45,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 22, 14] total 42 [2023-04-03 01:08:45,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014023730] [2023-04-03 01:08:45,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:08:45,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-04-03 01:08:45,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:45,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-04-03 01:08:45,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=576, Invalid=9324, Unknown=0, NotChecked=0, Total=9900 [2023-04-03 01:08:45,522 INFO L87 Difference]: Start difference. First operand 1570 states and 1773 transitions. Second operand has 42 states, 30 states have (on average 6.466666666666667) internal successors, (194), 30 states have internal predecessors, (194), 10 states have call successors, (70), 8 states have call predecessors, (70), 21 states have return successors, (83), 20 states have call predecessors, (83), 10 states have call successors, (83) [2023-04-03 01:08:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:49,737 INFO L93 Difference]: Finished difference Result 2303 states and 2638 transitions. [2023-04-03 01:08:49,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-04-03 01:08:49,738 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 30 states have (on average 6.466666666666667) internal successors, (194), 30 states have internal predecessors, (194), 10 states have call successors, (70), 8 states have call predecessors, (70), 21 states have return successors, (83), 20 states have call predecessors, (83), 10 states have call successors, (83) Word has length 251 [2023-04-03 01:08:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:49,739 INFO L225 Difference]: With dead ends: 2303 [2023-04-03 01:08:49,739 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 01:08:49,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 650 SyntacticMatches, 29 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10061 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=1622, Invalid=25438, Unknown=0, NotChecked=0, Total=27060 [2023-04-03 01:08:49,752 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 485 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 6542 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 6961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 6542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:49,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1746 Invalid, 6961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 6542 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-03 01:08:49,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 01:08:49,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 01:08:49,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-03 01:08:49,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 01:08:49,753 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 251 [2023-04-03 01:08:49,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:49,753 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 01:08:49,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 30 states have (on average 6.466666666666667) internal successors, (194), 30 states have internal predecessors, (194), 10 states have call successors, (70), 8 states have call predecessors, (70), 21 states have return successors, (83), 20 states have call predecessors, (83), 10 states have call successors, (83) [2023-04-03 01:08:49,754 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 01:08:49,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 01:08:49,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:08:49,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-03 01:08:49,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:49,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-03 01:09:02,023 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-03 01:09:02,023 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-03 01:09:02,023 INFO L899 garLoopResultBuilder]: For program point L127-2(lines 127 148) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point L149(lines 126 150) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 102 157) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 102 157) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 137) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 194) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point L184-2(lines 184 209) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point L210(lines 183 211) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point L203-1(line 203) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:09:02,024 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 545 553) no Hoare annotation was computed. [2023-04-03 01:09:02,025 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 545 553) the Hoare annotation is: true [2023-04-03 01:09:02,025 INFO L895 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or (< 2 ~waterLevel~0) (< ~pumpRunning~0 1) .cse0 (not (= ~methaneLevelCritical~0 0)) (< ~waterLevel~0 2)) (or .cse1 (< ~waterLevel~0 1) .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2023-04-03 01:09:02,025 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 576) no Hoare annotation was computed. [2023-04-03 01:09:02,025 INFO L895 garLoopResultBuilder]: At program point L568(line 568) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 0 ~systemActive~0)))) (and (or .cse0 (= ~waterLevel~0 0) .cse1) (or (< 2 ~waterLevel~0) (< ~pumpRunning~0 1) .cse2 (not (= ~methaneLevelCritical~0 0)) (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse2) (or .cse0 (= ~waterLevel~0 __utac_acc__Specification4_spec__1_~tmp~4) .cse1))) [2023-04-03 01:09:02,025 INFO L899 garLoopResultBuilder]: For program point L568-1(line 568) no Hoare annotation was computed. [2023-04-03 01:09:02,025 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 579) no Hoare annotation was computed. [2023-04-03 01:09:02,025 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 558 582) no Hoare annotation was computed. [2023-04-03 01:09:02,025 INFO L902 garLoopResultBuilder]: At program point L564(line 564) the Hoare annotation is: true [2023-04-03 01:09:02,026 INFO L899 garLoopResultBuilder]: For program point L564-1(line 564) no Hoare annotation was computed. [2023-04-03 01:09:02,026 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification4_spec__1EXIT(lines 558 582) no Hoare annotation was computed. [2023-04-03 01:09:02,026 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 558 582) the Hoare annotation is: true [2023-04-03 01:09:02,026 INFO L895 garLoopResultBuilder]: At program point L508(line 508) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~3 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:09:02,026 INFO L895 garLoopResultBuilder]: At program point L508-1(line 508) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~3 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:09:02,026 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 513) no Hoare annotation was computed. [2023-04-03 01:09:02,026 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 506 513) no Hoare annotation was computed. [2023-04-03 01:09:02,026 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 496 518) no Hoare annotation was computed. [2023-04-03 01:09:02,027 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2023-04-03 01:09:02,027 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-04-03 01:09:02,027 INFO L895 garLoopResultBuilder]: At program point L502(line 502) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-04-03 01:09:02,027 INFO L895 garLoopResultBuilder]: At program point L502-1(line 502) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-04-03 01:09:02,027 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 496 518) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-04-03 01:09:02,028 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 451 474) no Hoare annotation was computed. [2023-04-03 01:09:02,028 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 451 474) no Hoare annotation was computed. [2023-04-03 01:09:02,028 INFO L899 garLoopResultBuilder]: For program point L469(line 469) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L466(line 466) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L463(line 463) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L460(line 460) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 451 474) no Hoare annotation was computed. [2023-04-03 01:09:02,029 INFO L899 garLoopResultBuilder]: For program point L457(line 457) no Hoare annotation was computed. [2023-04-03 01:09:02,030 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2023-04-03 01:09:02,030 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 943 957) no Hoare annotation was computed. [2023-04-03 01:09:02,030 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 943 957) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse3 (= |old(~systemActive~0)| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 (= ~pumpRunning~0 0)) (or (not (= |old(~systemActive~0)| 1)) .cse1 (and .cse2 (= 1 ~systemActive~0))) (or .cse3 (and .cse2 (not .cse4)) .cse1 (< ~waterLevel~0 2)) (or (not .cse3) .cse0 .cse4))) [2023-04-03 01:09:02,030 INFO L895 garLoopResultBuilder]: At program point L949(line 949) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (< |old(~pumpRunning~0)| 1))) (and (not (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~systemActive~0)| 1)) .cse0 (and .cse1 (= 1 ~systemActive~0))) (or (= |old(~systemActive~0)| 0) (and .cse1 (not (= 0 ~systemActive~0))) .cse0 (< ~waterLevel~0 2)))) [2023-04-03 01:09:02,031 INFO L899 garLoopResultBuilder]: For program point L947(lines 947 953) no Hoare annotation was computed. [2023-04-03 01:09:02,031 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 924 942) the Hoare annotation is: true [2023-04-03 01:09:02,031 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 924 942) no Hoare annotation was computed. [2023-04-03 01:09:02,031 INFO L902 garLoopResultBuilder]: At program point L931(line 931) the Hoare annotation is: true [2023-04-03 01:09:02,031 INFO L899 garLoopResultBuilder]: For program point L931-1(line 931) no Hoare annotation was computed. [2023-04-03 01:09:02,031 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 531 537) no Hoare annotation was computed. [2023-04-03 01:09:02,031 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 531 537) the Hoare annotation is: true [2023-04-03 01:09:02,031 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 369 414) no Hoare annotation was computed. [2023-04-03 01:09:02,031 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 369 414) no Hoare annotation was computed. [2023-04-03 01:09:02,031 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 668 681) the Hoare annotation is: true [2023-04-03 01:09:02,031 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 668 681) no Hoare annotation was computed. [2023-04-03 01:09:02,032 INFO L895 garLoopResultBuilder]: At program point L801(line 801) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< |old(~pumpRunning~0)| 1))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 processEnvironment_~tmp~7)) .cse2 .cse1 .cse3) (or .cse2 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse3))) [2023-04-03 01:09:02,032 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 807) no Hoare annotation was computed. [2023-04-03 01:09:02,032 INFO L895 garLoopResultBuilder]: At program point L797(line 797) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))))) [2023-04-03 01:09:02,032 INFO L899 garLoopResultBuilder]: For program point L797-1(line 797) no Hoare annotation was computed. [2023-04-03 01:09:02,032 INFO L899 garLoopResultBuilder]: For program point L795(lines 795 812) no Hoare annotation was computed. [2023-04-03 01:09:02,032 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 791 815) no Hoare annotation was computed. [2023-04-03 01:09:02,032 INFO L895 garLoopResultBuilder]: At program point L810(line 810) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or (< ~waterLevel~0 1) .cse2 (< |old(~pumpRunning~0)| 1)) (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)))) [2023-04-03 01:09:02,032 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 791 815) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse2 (< |old(~pumpRunning~0)| 1)) (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)))) [2023-04-03 01:09:02,032 INFO L899 garLoopResultBuilder]: For program point L810-1(lines 791 815) no Hoare annotation was computed. [2023-04-03 01:09:02,032 INFO L895 garLoopResultBuilder]: At program point L805(line 805) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< |old(~pumpRunning~0)| 1))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or .cse2 .cse1 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 processEnvironment_~tmp~7))) (or .cse2 (= ~methaneLevelCritical~0 0) .cse1 .cse3))) [2023-04-03 01:09:02,032 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 731 737) no Hoare annotation was computed. [2023-04-03 01:09:02,033 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 731 737) the Hoare annotation is: true [2023-04-03 01:09:02,033 INFO L895 garLoopResultBuilder]: At program point L991(line 991) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= test_~splverifierCounter~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not .cse0) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 .cse2 (<= ~waterLevel~0 1) .cse3 .cse0 (<= 1 ~waterLevel~0)) (and .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse0 .cse4) (and .cse1 .cse2 .cse0 (= 0 ~systemActive~0)) (not (= |old(~systemActive~0)| 1)) (and (<= 1 ~pumpRunning~0) (<= (+ |old(~waterLevel~0)| 1) ~waterLevel~0) .cse2 (= ~methaneLevelCritical~0 0) .cse3 .cse4) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:09:02,033 INFO L899 garLoopResultBuilder]: For program point L989(lines 989 995) no Hoare annotation was computed. [2023-04-03 01:09:02,033 INFO L899 garLoopResultBuilder]: For program point L989-1(lines 989 995) no Hoare annotation was computed. [2023-04-03 01:09:02,033 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 959 1024) no Hoare annotation was computed. [2023-04-03 01:09:02,033 INFO L895 garLoopResultBuilder]: At program point L1014(lines 969 1016) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= test_~splverifierCounter~0 0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not .cse0) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 .cse2 (<= ~waterLevel~0 1) .cse3 .cse0 (<= 1 ~waterLevel~0)) (and .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse0 (not .cse4) .cse5) (and .cse1 .cse2 .cse0 (= 0 ~systemActive~0)) (not (= |old(~systemActive~0)| 1)) (and (<= 1 ~pumpRunning~0) (<= (+ |old(~waterLevel~0)| 1) ~waterLevel~0) .cse2 .cse4 .cse3 .cse5) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:09:02,033 INFO L895 garLoopResultBuilder]: At program point L981(line 981) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= test_~splverifierCounter~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not .cse0) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 .cse2 .cse3 .cse4 (<= 1 ~waterLevel~0)) (and .cse1 .cse2 .cse0 (= 0 ~systemActive~0)) (not (= |old(~systemActive~0)| 1)) (and (<= 1 ~pumpRunning~0) .cse2 (= ~methaneLevelCritical~0 0) (<= 2 ~waterLevel~0) .cse3 .cse0 .cse4) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:09:02,033 INFO L899 garLoopResultBuilder]: For program point L979(lines 979 985) no Hoare annotation was computed. [2023-04-03 01:09:02,034 INFO L899 garLoopResultBuilder]: For program point L979-1(lines 979 985) no Hoare annotation was computed. [2023-04-03 01:09:02,034 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 959 1024) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-04-03 01:09:02,034 INFO L895 garLoopResultBuilder]: At program point L1017(lines 968 1018) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:09:02,034 INFO L895 garLoopResultBuilder]: At program point L1007(line 1007) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (<= 1 ~pumpRunning~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (< 1 |old(~waterLevel~0)|) (not .cse0) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 .cse2 (= 1 ~systemActive~0) .cse0) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse2 .cse0) (and .cse1 .cse2 (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:09:02,034 INFO L899 garLoopResultBuilder]: For program point L1005(lines 1005 1011) no Hoare annotation was computed. [2023-04-03 01:09:02,034 INFO L895 garLoopResultBuilder]: At program point L1005-1(lines 999 1012) the Hoare annotation is: (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 2)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= test_~splverifierCounter~0 0)) (.cse0 (= |old(~pumpRunning~0)| 0))) (or (< 1 |old(~waterLevel~0)|) (not .cse0) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 .cse2 (<= ~waterLevel~0 1) .cse3 .cse0 (<= 1 ~waterLevel~0)) (and .cse1 .cse2 .cse4 .cse3 .cse0 .cse5) (and (<= 1 ~pumpRunning~0) .cse2 .cse4 .cse3 .cse5) (and .cse1 .cse2 .cse0 (= 0 ~systemActive~0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:09:02,034 INFO L899 garLoopResultBuilder]: For program point L970(lines 969 1016) no Hoare annotation was computed. [2023-04-03 01:09:02,035 INFO L899 garLoopResultBuilder]: For program point L999(lines 999 1012) no Hoare annotation was computed. [2023-04-03 01:09:02,035 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 959 1024) no Hoare annotation was computed. [2023-04-03 01:09:02,035 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 816 823) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0)) (< ~waterLevel~0 2)) [2023-04-03 01:09:02,035 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 816 823) no Hoare annotation was computed. [2023-04-03 01:09:02,035 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 682 690) the Hoare annotation is: true [2023-04-03 01:09:02,035 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 682 690) no Hoare annotation was computed. [2023-04-03 01:09:02,035 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 636 658) no Hoare annotation was computed. [2023-04-03 01:09:02,036 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 636 658) no Hoare annotation was computed. [2023-04-03 01:09:02,036 INFO L899 garLoopResultBuilder]: For program point L831(lines 831 837) no Hoare annotation was computed. [2023-04-03 01:09:02,036 INFO L895 garLoopResultBuilder]: At program point L829(line 829) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2)) [2023-04-03 01:09:02,036 INFO L899 garLoopResultBuilder]: For program point L829-1(line 829) no Hoare annotation was computed. [2023-04-03 01:09:02,036 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 824 840) no Hoare annotation was computed. [2023-04-03 01:09:02,036 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 824 840) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2)) [2023-04-03 01:09:02,036 INFO L895 garLoopResultBuilder]: At program point L835(line 835) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< ~waterLevel~0 2))) (and (or .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (and (= ~pumpRunning~0 0) (= activatePump_~tmp~8 0))))) [2023-04-03 01:09:02,036 INFO L899 garLoopResultBuilder]: For program point L835-1(lines 824 840) no Hoare annotation was computed. [2023-04-03 01:09:02,036 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 659 667) the Hoare annotation is: true [2023-04-03 01:09:02,036 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 659 667) no Hoare annotation was computed. [2023-04-03 01:09:02,036 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 905 923) no Hoare annotation was computed. [2023-04-03 01:09:02,037 INFO L902 garLoopResultBuilder]: At program point L912(line 912) the Hoare annotation is: true [2023-04-03 01:09:02,037 INFO L899 garLoopResultBuilder]: For program point L912-1(line 912) no Hoare annotation was computed. [2023-04-03 01:09:02,037 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 905 923) the Hoare annotation is: true [2023-04-03 01:09:02,037 INFO L895 garLoopResultBuilder]: At program point L720(line 720) the Hoare annotation is: (let ((.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (< 2 |old(~waterLevel~0)|)) (.cse4 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (< |old(~pumpRunning~0)| 1) .cse2) (or .cse3 .cse4 .cse0 .cse1 .cse2) (or (< 1 |old(~waterLevel~0)|) .cse3 .cse4 .cse0 (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) (or .cse3 (not (= 0 ~systemActive~0))))) [2023-04-03 01:09:02,037 INFO L895 garLoopResultBuilder]: At program point L718(lines 718 724) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse5 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse4 .cse7)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse2 .cse3 (< |old(~pumpRunning~0)| 1) (and .cse4 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) .cse5) (or .cse0 .cse2 .cse3 (not .cse6) (and (<= 1 ~pumpRunning~0) .cse7) .cse5) (or .cse0 .cse1 .cse6 .cse2 .cse3 .cse5) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2 (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))))) [2023-04-03 01:09:02,037 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 707 730) no Hoare annotation was computed. [2023-04-03 01:09:02,037 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 707 730) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (< |old(~waterLevel~0)| 2)) (.cse4 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse5)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5) (< |old(~pumpRunning~0)| 1) .cse4) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2 (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))))) [2023-04-03 01:09:02,037 INFO L895 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1) .cse1) (or .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~pumpRunning~0)| 1) .cse3) (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (= 0 ~systemActive~0))))) [2023-04-03 01:09:02,037 INFO L899 garLoopResultBuilder]: For program point L711(lines 710 729) no Hoare annotation was computed. [2023-04-03 01:09:02,037 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 707 730) no Hoare annotation was computed. [2023-04-03 01:09:02,038 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2023-04-03 01:09:02,038 INFO L902 garLoopResultBuilder]: At program point L443(lines 418 447) the Hoare annotation is: true [2023-04-03 01:09:02,038 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2023-04-03 01:09:02,038 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2023-04-03 01:09:02,038 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2023-04-03 01:09:02,038 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2023-04-03 01:09:02,038 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 418 447) the Hoare annotation is: true [2023-04-03 01:09:02,038 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2023-04-03 01:09:02,038 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2023-04-03 01:09:02,038 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 627 635) the Hoare annotation is: true [2023-04-03 01:09:02,038 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 627 635) no Hoare annotation was computed. [2023-04-03 01:09:02,038 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 591 602) no Hoare annotation was computed. [2023-04-03 01:09:02,038 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 591 602) the Hoare annotation is: (or (< ~pumpRunning~0 1) (not (= 1 ~systemActive~0)) (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0) (< 2 |old(~waterLevel~0)|)) [2023-04-03 01:09:02,039 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 739 763) no Hoare annotation was computed. [2023-04-03 01:09:02,039 INFO L895 garLoopResultBuilder]: At program point L758(line 758) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))))) [2023-04-03 01:09:02,039 INFO L899 garLoopResultBuilder]: For program point L758-1(lines 739 763) no Hoare annotation was computed. [2023-04-03 01:09:02,039 INFO L895 garLoopResultBuilder]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< 1 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 0)) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))))) [2023-04-03 01:09:02,039 INFO L895 garLoopResultBuilder]: At program point L749(line 749) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 1)) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))))) [2023-04-03 01:09:02,039 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2023-04-03 01:09:02,039 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 739 763) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)))) [2023-04-03 01:09:02,039 INFO L895 garLoopResultBuilder]: At program point L745(line 745) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)))) [2023-04-03 01:09:02,039 INFO L899 garLoopResultBuilder]: For program point L745-1(line 745) no Hoare annotation was computed. [2023-04-03 01:09:02,039 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2023-04-03 01:09:02,039 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 603 614) no Hoare annotation was computed. [2023-04-03 01:09:02,040 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 603 614) the Hoare annotation is: (let ((.cse3 (< |old(~waterLevel~0)| 2)) (.cse4 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or (< ~pumpRunning~0 1) .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse4) (or (and (or .cse0 .cse2 .cse3 .cse4) (or (< 1 |old(~waterLevel~0)|) (< |old(~waterLevel~0)| 1) .cse0 .cse2)) .cse1))) [2023-04-03 01:09:02,040 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 692 699) the Hoare annotation is: true [2023-04-03 01:09:02,040 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 696) no Hoare annotation was computed. [2023-04-03 01:09:02,040 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 692 699) no Hoare annotation was computed. [2023-04-03 01:09:02,040 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 538 544) the Hoare annotation is: true [2023-04-03 01:09:02,040 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 538 544) no Hoare annotation was computed. [2023-04-03 01:09:02,040 INFO L899 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2023-04-03 01:09:02,040 INFO L895 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or (< ~waterLevel~0 1) .cse2 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-04-03 01:09:02,040 INFO L899 garLoopResultBuilder]: For program point L784-1(lines 765 789) no Hoare annotation was computed. [2023-04-03 01:09:02,040 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 765 789) no Hoare annotation was computed. [2023-04-03 01:09:02,041 INFO L895 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or (< ~waterLevel~0 1) .cse1 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-04-03 01:09:02,041 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 765 789) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse2 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-04-03 01:09:02,041 INFO L895 garLoopResultBuilder]: At program point L775(line 775) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or (< ~waterLevel~0 1) .cse1 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= processEnvironment__wrappee__methaneQuery_~tmp~6 1))) (or .cse0 .cse1 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))))) [2023-04-03 01:09:02,041 INFO L899 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2023-04-03 01:09:02,044 INFO L895 garLoopResultBuilder]: At program point L771(line 771) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse1 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-04-03 01:09:02,044 INFO L899 garLoopResultBuilder]: For program point L771-1(line 771) no Hoare annotation was computed. [2023-04-03 01:09:02,044 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 860 868) no Hoare annotation was computed. [2023-04-03 01:09:02,044 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 860 868) the Hoare annotation is: true [2023-04-03 01:09:02,044 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 869 904) no Hoare annotation was computed. [2023-04-03 01:09:02,044 INFO L899 garLoopResultBuilder]: For program point L899(line 899) no Hoare annotation was computed. [2023-04-03 01:09:02,044 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 869 904) no Hoare annotation was computed. [2023-04-03 01:09:02,044 INFO L899 garLoopResultBuilder]: For program point L899-1(line 899) no Hoare annotation was computed. [2023-04-03 01:09:02,044 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 56 101) no Hoare annotation was computed. [2023-04-03 01:09:02,044 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 56 101) no Hoare annotation was computed. [2023-04-03 01:09:02,045 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 483 492) no Hoare annotation was computed. [2023-04-03 01:09:02,045 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 483 492) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-04-03 01:09:02,045 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 483 492) no Hoare annotation was computed. [2023-04-03 01:09:02,045 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 849 859) no Hoare annotation was computed. [2023-04-03 01:09:02,045 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 849 859) the Hoare annotation is: true [2023-04-03 01:09:02,045 INFO L902 garLoopResultBuilder]: At program point L854(line 854) the Hoare annotation is: true [2023-04-03 01:09:02,045 INFO L899 garLoopResultBuilder]: For program point L854-1(line 854) no Hoare annotation was computed. [2023-04-03 01:09:02,045 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 841 848) no Hoare annotation was computed. [2023-04-03 01:09:02,045 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 841 848) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 (< ~waterLevel~0 2) (= 0 ~systemActive~0)) (or .cse0 (not (= 1 ~systemActive~0)) .cse1))) [2023-04-03 01:09:02,045 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 323 368) no Hoare annotation was computed. [2023-04-03 01:09:02,046 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 323 368) no Hoare annotation was computed. [2023-04-03 01:09:02,046 INFO L899 garLoopResultBuilder]: For program point L285(line 285) no Hoare annotation was computed. [2023-04-03 01:09:02,046 INFO L899 garLoopResultBuilder]: For program point L285-1(line 285) no Hoare annotation was computed. [2023-04-03 01:09:02,046 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 248) no Hoare annotation was computed. [2023-04-03 01:09:02,046 INFO L899 garLoopResultBuilder]: For program point L269-2(lines 269 289) no Hoare annotation was computed. [2023-04-03 01:09:02,047 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:09:02,047 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:09:02,047 INFO L899 garLoopResultBuilder]: For program point L290(lines 268 291) no Hoare annotation was computed. [2023-04-03 01:09:02,047 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 265) no Hoare annotation was computed. [2023-04-03 01:09:02,047 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:09:02,047 INFO L899 garLoopResultBuilder]: For program point L270(lines 269 289) no Hoare annotation was computed. [2023-04-03 01:09:02,047 INFO L899 garLoopResultBuilder]: For program point L301(line 301) no Hoare annotation was computed. [2023-04-03 01:09:02,048 INFO L899 garLoopResultBuilder]: For program point L301-1(line 301) no Hoare annotation was computed. [2023-04-03 01:09:02,048 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 307) no Hoare annotation was computed. [2023-04-03 01:09:02,048 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 521 530) no Hoare annotation was computed. [2023-04-03 01:09:02,048 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 521 530) no Hoare annotation was computed. [2023-04-03 01:09:02,048 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) [2023-04-03 01:09:02,048 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:09:02,049 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:09:02,049 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-03 01:09:02,049 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 615 626) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse7 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse5 (< 2 ~waterLevel~0)) (.cse0 (not .cse7)) (.cse6 (< ~waterLevel~0 2)) (.cse1 (not (= ~pumpRunning~0 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (< 1 ~waterLevel~0)) (.cse8 (not .cse2))) (and (or .cse0 .cse1 (< ~waterLevel~0 1) .cse2 .cse3 .cse4) (or .cse5 (< ~pumpRunning~0 1) .cse0 .cse2 .cse3 .cse6) (or .cse5 .cse1 .cse3 .cse7 .cse8 .cse6) (or .cse5 .cse0 .cse1 .cse2 .cse3 .cse6) (or .cse1 .cse3 .cse7 (< ~waterLevel~0 (+ ~pumpRunning~0 1)) .cse4 .cse8)))) [2023-04-03 01:09:02,049 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 615 626) no Hoare annotation was computed. [2023-04-03 01:09:02,049 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 475 481) no Hoare annotation was computed. [2023-04-03 01:09:02,049 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 475 481) the Hoare annotation is: true [2023-04-03 01:09:02,049 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:09:02,049 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2023-04-03 01:09:02,049 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-03 01:09:02,049 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 01:09:02,053 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:09:02,055 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:09:02,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:09:02 BoogieIcfgContainer [2023-04-03 01:09:02,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:09:02,081 INFO L158 Benchmark]: Toolchain (without parser) took 57337.94ms. Allocated memory was 282.1MB in the beginning and 1.0GB in the end (delta: 767.6MB). Free memory was 235.2MB in the beginning and 776.7MB in the end (delta: -541.5MB). Peak memory consumption was 636.0MB. Max. memory is 8.0GB. [2023-04-03 01:09:02,082 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory was 142.1MB in the beginning and 141.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:09:02,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.07ms. Allocated memory is still 282.1MB. Free memory was 234.7MB in the beginning and 215.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-03 01:09:02,082 INFO L158 Benchmark]: Boogie Preprocessor took 72.07ms. Allocated memory is still 282.1MB. Free memory was 215.8MB in the beginning and 212.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-03 01:09:02,082 INFO L158 Benchmark]: RCFGBuilder took 967.75ms. Allocated memory is still 282.1MB. Free memory was 212.1MB in the beginning and 149.7MB in the end (delta: 62.4MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2023-04-03 01:09:02,083 INFO L158 Benchmark]: TraceAbstraction took 55931.83ms. Allocated memory was 282.1MB in the beginning and 1.0GB in the end (delta: 767.6MB). Free memory was 149.2MB in the beginning and 776.7MB in the end (delta: -627.5MB). Peak memory consumption was 550.0MB. Max. memory is 8.0GB. [2023-04-03 01:09:02,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory was 142.1MB in the beginning and 141.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 360.07ms. Allocated memory is still 282.1MB. Free memory was 234.7MB in the beginning and 215.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.07ms. Allocated memory is still 282.1MB. Free memory was 215.8MB in the beginning and 212.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 967.75ms. Allocated memory is still 282.1MB. Free memory was 212.1MB in the beginning and 149.7MB in the end (delta: 62.4MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * TraceAbstraction took 55931.83ms. Allocated memory was 282.1MB in the beginning and 1.0GB in the end (delta: 767.6MB). Free memory was 149.2MB in the beginning and 776.7MB in the end (delta: -627.5MB). Peak memory consumption was 550.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 696]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 208 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.9s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3877 SdHoareTripleChecker+Valid, 8.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3730 mSDsluCounter, 7699 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6160 mSDsCounter, 2331 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16376 IncrementalHoareTripleChecker+Invalid, 18707 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2331 mSolverCounterUnsat, 1539 mSDtfsCounter, 16376 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2256 GetRequests, 1762 SyntacticMatches, 47 SemanticMatches, 447 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18822 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4259occurred in iteration=10, InterpolantAutomatonStates: 240, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1571 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 72 LocationsWithAnnotation, 6516 PreInvPairs, 6725 NumberOfFragments, 2342 HoareAnnotationTreeSize, 6516 FomulaSimplifications, 81772 FormulaSimplificationTreeSizeReduction, 4.8s HoareSimplificationTime, 72 FomulaSimplificationsInter, 51736 FormulaSimplificationTreeSizeReductionInter, 7.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 2563 NumberOfCodeBlocks, 2499 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2943 ConstructedInterpolants, 0 QuantifiedInterpolants, 6533 SizeOfPredicates, 40 NumberOfNonLiveVariables, 3552 ConjunctsInSsa, 190 ConjunctsInUnsatCore, 20 InterpolantComputations, 10 PerfectInterpolantSequences, 1374/1515 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 968]: Loop Invariant Derived loop invariant: (((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1)) || \old(waterLevel) < \old(pumpRunning) + 1 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 969]: Loop Invariant Derived loop invariant: (((((((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || (((((pumpRunning == 0 && splverifierCounter == 0) && waterLevel <= 1) && 1 == systemActive) && \old(pumpRunning) == 0) && 1 <= waterLevel)) || ((((((pumpRunning == 0 && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) && \old(pumpRunning) == 0) && !(methaneLevelCritical == 0)) && waterLevel <= 2)) || (((pumpRunning == 0 && splverifierCounter == 0) && \old(pumpRunning) == 0) && 0 == systemActive)) || !(\old(systemActive) == 1)) || (((((1 <= pumpRunning && \old(waterLevel) + 1 <= waterLevel) && splverifierCounter == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel <= 2)) || \old(waterLevel) < \old(pumpRunning) + 1 RESULT: Ultimate proved your program to be correct! [2023-04-03 01:09:02,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...