/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 EqDomain -i ../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:00:17,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:00:17,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:00:17,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:00:17,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:00:17,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:00:17,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:00:17,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:00:17,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:00:17,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:00:17,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:00:17,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:00:17,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:00:17,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:00:17,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:00:17,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:00:17,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:00:17,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:00:17,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:00:17,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:00:17,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:00:17,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:00:17,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:00:17,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:00:17,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:00:17,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:00:17,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:00:17,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:00:17,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:00:17,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:00:17,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:00:17,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:00:17,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:00:17,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:00:17,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:00:17,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:00:17,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:00:17,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:00:17,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:00:17,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:00:17,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:00:17,859 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 [2023-04-01 12:00:17,877 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:00:17,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:00:17,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:00:17,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:00:17,878 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:00:17,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:00:17,879 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:00:17,879 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:00:17,879 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:00:17,879 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:00:17,880 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:00:17,880 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:00:17,880 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:00:17,880 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:00:17,880 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:00:17,880 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:00:17,880 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:00:17,880 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:00:17,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:00:17,881 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:00:17,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:00:17,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:00:17,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:00:17,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:00:17,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:00:17,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:00:17,882 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:00:17,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:00:17,882 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:00:17,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:00:17,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:00:17,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:00:17,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:00:17,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:00:17,883 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:00:17,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:00:17,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:00:17,883 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:00:17,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:00:17,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:00:17,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:00:17,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:00:18,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:00:18,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:00:18,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:00:18,072 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:00:18,073 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:00:18,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2023-04-01 12:00:19,151 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:00:19,523 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:00:19,523 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2023-04-01 12:00:19,556 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a7ec37ff/476438a2d961444f83176e8f77d8d453/FLAGf18d96a39 [2023-04-01 12:00:19,574 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a7ec37ff/476438a2d961444f83176e8f77d8d453 [2023-04-01 12:00:19,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:00:19,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:00:19,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:00:19,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:00:19,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:00:19,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:00:19" (1/1) ... [2023-04-01 12:00:19,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234bd006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:19, skipping insertion in model container [2023-04-01 12:00:19,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:00:19" (1/1) ... [2023-04-01 12:00:19,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:00:19,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:00:19,929 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_spec1_product19.cil.c[2044,2057] [2023-04-01 12:00:20,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:00:20,167 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:00:20,192 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_spec1_product19.cil.c[2044,2057] [2023-04-01 12:00:20,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:00:20,277 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:00:20,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20 WrapperNode [2023-04-01 12:00:20,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:00:20,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:00:20,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:00:20,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:00:20,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (1/1) ... [2023-04-01 12:00:20,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (1/1) ... [2023-04-01 12:00:20,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (1/1) ... [2023-04-01 12:00:20,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (1/1) ... [2023-04-01 12:00:20,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (1/1) ... [2023-04-01 12:00:20,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (1/1) ... [2023-04-01 12:00:20,392 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (1/1) ... [2023-04-01 12:00:20,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (1/1) ... [2023-04-01 12:00:20,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:00:20,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:00:20,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:00:20,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:00:20,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (1/1) ... [2023-04-01 12:00:20,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:00:20,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:00:20,491 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) [2023-04-01 12:00:20,494 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 [2023-04-01 12:00:20,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:00:20,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:00:20,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 12:00:20,561 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:00:20,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-01 12:00:20,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 12:00:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 12:00:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 12:00:20,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 12:00:20,565 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 12:00:20,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-01 12:00:20,565 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 12:00:20,565 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 12:00:20,565 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:00:20,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:00:20,565 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:00:20,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:00:20,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:00:20,566 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 12:00:20,566 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 12:00:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 12:00:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 12:00:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-01 12:00:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 12:00:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 12:00:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 12:00:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 12:00:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 12:00:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-01 12:00:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 12:00:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 12:00:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 12:00:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 12:00:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 12:00:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:00:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 12:00:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 12:00:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:00:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 12:00:20,570 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 12:00:20,571 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 12:00:20,571 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 12:00:20,571 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 12:00:20,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:00:20,572 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 12:00:20,572 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 12:00:20,572 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 12:00:20,572 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 12:00:20,572 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 12:00:20,572 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-01 12:00:20,572 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 12:00:20,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:00:20,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:00:20,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:00:20,786 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:00:20,788 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:00:21,259 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:00:21,372 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:00:21,372 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 12:00:21,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:00:21 BoogieIcfgContainer [2023-04-01 12:00:21,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:00:21,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:00:21,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:00:21,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:00:21,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:00:19" (1/3) ... [2023-04-01 12:00:21,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f34eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:00:21, skipping insertion in model container [2023-04-01 12:00:21,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:20" (2/3) ... [2023-04-01 12:00:21,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f34eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:00:21, skipping insertion in model container [2023-04-01 12:00:21,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:00:21" (3/3) ... [2023-04-01 12:00:21,380 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product19.cil.c [2023-04-01 12:00:21,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:00:21,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:00:21,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:00:21,431 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;@14bd22b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:00:21,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:00:21,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 71 states have internal predecessors, (76), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2023-04-01 12:00:21,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-01 12:00:21,441 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:21,441 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] [2023-04-01 12:00:21,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:21,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:21,445 INFO L85 PathProgramCache]: Analyzing trace with hash 721098008, now seen corresponding path program 1 times [2023-04-01 12:00:21,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:21,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086985115] [2023-04-01 12:00:21,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:21,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:21,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:00:21,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:21,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086985115] [2023-04-01 12:00:21,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086985115] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:21,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:21,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 12:00:21,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186041277] [2023-04-01 12:00:21,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:21,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 12:00:21,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:21,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 12:00:21,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:00:21,604 INFO L87 Difference]: Start difference. First operand has 130 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 71 states have internal predecessors, (76), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) 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) [2023-04-01 12:00:21,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:21,640 INFO L93 Difference]: Finished difference Result 189 states and 232 transitions. [2023-04-01 12:00:21,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 12:00:21,644 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 [2023-04-01 12:00:21,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:21,650 INFO L225 Difference]: With dead ends: 189 [2023-04-01 12:00:21,650 INFO L226 Difference]: Without dead ends: 95 [2023-04-01 12:00:21,652 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 [2023-04-01 12:00:21,654 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:21,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:00:21,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-04-01 12:00:21,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-04-01 12:00:21,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 58 states have internal predecessors, (61), 27 states have call successors, (27), 23 states have call predecessors, (27), 18 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2023-04-01 12:00:21,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2023-04-01 12:00:21,688 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 42 [2023-04-01 12:00:21,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:21,688 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2023-04-01 12:00:21,689 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) [2023-04-01 12:00:21,689 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2023-04-01 12:00:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-01 12:00:21,690 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:21,691 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] [2023-04-01 12:00:21,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 12:00:21,691 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:21,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:21,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2095000290, now seen corresponding path program 1 times [2023-04-01 12:00:21,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:21,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885833782] [2023-04-01 12:00:21,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:21,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:21,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:00:21,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:21,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885833782] [2023-04-01 12:00:21,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885833782] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:21,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:21,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 12:00:21,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976583429] [2023-04-01 12:00:21,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:21,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 12:00:21,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:21,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 12:00:21,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:00:21,769 INFO L87 Difference]: Start difference. First operand 95 states and 110 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) [2023-04-01 12:00:21,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:21,794 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2023-04-01 12:00:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 12:00:21,795 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 [2023-04-01 12:00:21,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:21,796 INFO L225 Difference]: With dead ends: 140 [2023-04-01 12:00:21,796 INFO L226 Difference]: Without dead ends: 87 [2023-04-01 12:00:21,797 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 [2023-04-01 12:00:21,798 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 11 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:21,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 158 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:00:21,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-04-01 12:00:21,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-04-01 12:00:21,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 44 states have (on average 1.25) internal successors, (55), 53 states have internal predecessors, (55), 24 states have call successors, (24), 22 states have call predecessors, (24), 18 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-04-01 12:00:21,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2023-04-01 12:00:21,806 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 43 [2023-04-01 12:00:21,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:21,806 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2023-04-01 12:00:21,806 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) [2023-04-01 12:00:21,806 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2023-04-01 12:00:21,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-01 12:00:21,807 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:21,807 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] [2023-04-01 12:00:21,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 12:00:21,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:21,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash -388581172, now seen corresponding path program 1 times [2023-04-01 12:00:21,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:21,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685406220] [2023-04-01 12:00:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:21,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:21,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:00:21,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:21,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685406220] [2023-04-01 12:00:21,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685406220] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:21,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:21,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:00:21,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780116864] [2023-04-01 12:00:21,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:21,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:00:21,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:21,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:00:21,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:00:21,965 INFO L87 Difference]: Start difference. First operand 87 states and 99 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) [2023-04-01 12:00:22,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:22,155 INFO L93 Difference]: Finished difference Result 261 states and 310 transitions. [2023-04-01 12:00:22,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 12:00:22,156 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 [2023-04-01 12:00:22,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:22,161 INFO L225 Difference]: With dead ends: 261 [2023-04-01 12:00:22,161 INFO L226 Difference]: Without dead ends: 196 [2023-04-01 12:00:22,166 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 [2023-04-01 12:00:22,168 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 151 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:22,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 444 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:00:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-04-01 12:00:22,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2023-04-01 12:00:22,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 119 states have internal predecessors, (130), 48 states have call successors, (48), 44 states have call predecessors, (48), 38 states have return successors, (45), 36 states have call predecessors, (45), 44 states have call successors, (45) [2023-04-01 12:00:22,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 223 transitions. [2023-04-01 12:00:22,218 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 223 transitions. Word has length 46 [2023-04-01 12:00:22,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:22,218 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 223 transitions. [2023-04-01 12:00:22,218 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) [2023-04-01 12:00:22,219 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 223 transitions. [2023-04-01 12:00:22,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 12:00:22,220 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:22,220 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] [2023-04-01 12:00:22,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 12:00:22,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:22,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1429099679, now seen corresponding path program 1 times [2023-04-01 12:00:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:22,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812651740] [2023-04-01 12:00:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:22,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:00:22,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:22,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812651740] [2023-04-01 12:00:22,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812651740] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:22,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:22,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 12:00:22,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2724900] [2023-04-01 12:00:22,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:22,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 12:00:22,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:22,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 12:00:22,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 12:00:22,337 INFO L87 Difference]: Start difference. First operand 188 states and 223 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-01 12:00:22,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:22,451 INFO L93 Difference]: Finished difference Result 505 states and 618 transitions. [2023-04-01 12:00:22,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 12:00:22,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2023-04-01 12:00:22,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:22,454 INFO L225 Difference]: With dead ends: 505 [2023-04-01 12:00:22,454 INFO L226 Difference]: Without dead ends: 339 [2023-04-01 12:00:22,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 12:00:22,456 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:22,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 365 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:00:22,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-04-01 12:00:22,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 327. [2023-04-01 12:00:22,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 180 states have (on average 1.288888888888889) internal successors, (232), 212 states have internal predecessors, (232), 81 states have call successors, (81), 73 states have call predecessors, (81), 65 states have return successors, (79), 61 states have call predecessors, (79), 77 states have call successors, (79) [2023-04-01 12:00:22,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 392 transitions. [2023-04-01 12:00:22,485 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 392 transitions. Word has length 51 [2023-04-01 12:00:22,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:22,485 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 392 transitions. [2023-04-01 12:00:22,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-01 12:00:22,486 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 392 transitions. [2023-04-01 12:00:22,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-01 12:00:22,487 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:22,488 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] [2023-04-01 12:00:22,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 12:00:22,488 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:22,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:22,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1517666051, now seen corresponding path program 1 times [2023-04-01 12:00:22,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:22,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049286174] [2023-04-01 12:00:22,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:22,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:00:22,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:22,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049286174] [2023-04-01 12:00:22,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049286174] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:22,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:22,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:00:22,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417126218] [2023-04-01 12:00:22,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:22,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:00:22,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:22,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:00:22,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:00:22,649 INFO L87 Difference]: Start difference. First operand 327 states and 392 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-01 12:00:22,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:22,805 INFO L93 Difference]: Finished difference Result 555 states and 692 transitions. [2023-04-01 12:00:22,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 12:00:22,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2023-04-01 12:00:22,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:22,807 INFO L225 Difference]: With dead ends: 555 [2023-04-01 12:00:22,808 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 12:00:22,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-04-01 12:00:22,812 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 65 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:22,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 130 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:00:22,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 12:00:22,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 12:00:22,813 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) [2023-04-01 12:00:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 12:00:22,813 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2023-04-01 12:00:22,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:22,814 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 12:00:22,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-01 12:00:22,814 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 12:00:22,814 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 12:00:22,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 12:00:22,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 12:00:22,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 12:00:23,427 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-01 12:00:23,428 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-01 12:00:23,428 INFO L899 garLoopResultBuilder]: For program point L282(lines 259 283) no Hoare annotation was computed. [2023-04-01 12:00:23,428 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 270) no Hoare annotation was computed. [2023-04-01 12:00:23,428 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 235 290) no Hoare annotation was computed. [2023-04-01 12:00:23,428 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 235 290) no Hoare annotation was computed. [2023-04-01 12:00:23,428 INFO L899 garLoopResultBuilder]: For program point L260-2(lines 260 281) no Hoare annotation was computed. [2023-04-01 12:00:23,428 INFO L899 garLoopResultBuilder]: For program point L317-2(lines 317 342) no Hoare annotation was computed. [2023-04-01 12:00:23,428 INFO L899 garLoopResultBuilder]: For program point L343(lines 316 344) no Hoare annotation was computed. [2023-04-01 12:00:23,428 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 291 350) no Hoare annotation was computed. [2023-04-01 12:00:23,429 INFO L899 garLoopResultBuilder]: For program point L336(line 336) no Hoare annotation was computed. [2023-04-01 12:00:23,429 INFO L899 garLoopResultBuilder]: For program point L336-1(line 336) no Hoare annotation was computed. [2023-04-01 12:00:23,429 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 291 350) no Hoare annotation was computed. [2023-04-01 12:00:23,429 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 291 350) no Hoare annotation was computed. [2023-04-01 12:00:23,429 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2023-04-01 12:00:23,429 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 577 585) no Hoare annotation was computed. [2023-04-01 12:00:23,429 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 577 585) the Hoare annotation is: true [2023-04-01 12:00:23,430 INFO L895 garLoopResultBuilder]: At program point L674-1(line 674) the Hoare annotation is: (or (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) (= main_~tmp~4 1))) [2023-04-01 12:00:23,430 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 679) no Hoare annotation was computed. [2023-04-01 12:00:23,430 INFO L899 garLoopResultBuilder]: For program point L672-1(lines 672 679) no Hoare annotation was computed. [2023-04-01 12:00:23,430 INFO L899 garLoopResultBuilder]: For program point L670(line 670) no Hoare annotation was computed. [2023-04-01 12:00:23,430 INFO L895 garLoopResultBuilder]: At program point L669(line 669) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,430 INFO L895 garLoopResultBuilder]: At program point L668(line 668) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,430 INFO L895 garLoopResultBuilder]: At program point L668-1(line 668) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,430 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 662 684) no Hoare annotation was computed. [2023-04-01 12:00:23,430 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 662 684) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,430 INFO L895 garLoopResultBuilder]: At program point L674(line 674) the Hoare annotation is: (or (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) (= main_~tmp~4 1))) [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 620 643) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L638(line 638) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L637(line 637) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L636(line 636) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 620 643) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L635(line 635) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L634(line 634) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L633(line 633) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L632(line 632) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L631(line 631) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L629(line 629) no Hoare annotation was computed. [2023-04-01 12:00:23,431 INFO L899 garLoopResultBuilder]: For program point L628(line 628) no Hoare annotation was computed. [2023-04-01 12:00:23,432 INFO L899 garLoopResultBuilder]: For program point L627(line 627) no Hoare annotation was computed. [2023-04-01 12:00:23,432 INFO L899 garLoopResultBuilder]: For program point L626(line 626) no Hoare annotation was computed. [2023-04-01 12:00:23,432 INFO L899 garLoopResultBuilder]: For program point L625(line 625) no Hoare annotation was computed. [2023-04-01 12:00:23,432 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 620 643) no Hoare annotation was computed. [2023-04-01 12:00:23,432 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 840 854) no Hoare annotation was computed. [2023-04-01 12:00:23,432 INFO L895 garLoopResultBuilder]: At program point L846(line 846) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-01 12:00:23,432 INFO L899 garLoopResultBuilder]: For program point L844(lines 844 850) no Hoare annotation was computed. [2023-04-01 12:00:23,432 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 840 854) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= |old(~systemActive~0)| 0) .cse0 (not (= 0 ~systemActive~0))) (or .cse0 (= 1 ~systemActive~0) (not (= |old(~systemActive~0)| 1))) (or .cse0 (= ~pumpRunning~0 0)))) [2023-04-01 12:00:23,432 INFO L902 garLoopResultBuilder]: At program point L828(line 828) the Hoare annotation is: true [2023-04-01 12:00:23,432 INFO L899 garLoopResultBuilder]: For program point L828-1(line 828) no Hoare annotation was computed. [2023-04-01 12:00:23,433 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 821 839) the Hoare annotation is: true [2023-04-01 12:00:23,433 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 821 839) no Hoare annotation was computed. [2023-04-01 12:00:23,433 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 563 569) no Hoare annotation was computed. [2023-04-01 12:00:23,433 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 563 569) the Hoare annotation is: true [2023-04-01 12:00:23,433 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 502 547) no Hoare annotation was computed. [2023-04-01 12:00:23,433 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 502 547) no Hoare annotation was computed. [2023-04-01 12:00:23,433 INFO L895 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-01 12:00:23,433 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 740) no Hoare annotation was computed. [2023-04-01 12:00:23,433 INFO L895 garLoopResultBuilder]: At program point L730(line 730) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-01 12:00:23,433 INFO L899 garLoopResultBuilder]: For program point L730-1(line 730) no Hoare annotation was computed. [2023-04-01 12:00:23,433 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 745) no Hoare annotation was computed. [2023-04-01 12:00:23,433 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 724 748) no Hoare annotation was computed. [2023-04-01 12:00:23,434 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 724 748) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-04-01 12:00:23,434 INFO L895 garLoopResultBuilder]: At program point L743(line 743) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-04-01 12:00:23,434 INFO L899 garLoopResultBuilder]: For program point L743-1(lines 724 748) no Hoare annotation was computed. [2023-04-01 12:00:23,434 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-01 12:00:23,434 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 716 722) no Hoare annotation was computed. [2023-04-01 12:00:23,434 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 716 722) the Hoare annotation is: true [2023-04-01 12:00:23,434 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 909) no Hoare annotation was computed. [2023-04-01 12:00:23,434 INFO L895 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,434 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 856 921) no Hoare annotation was computed. [2023-04-01 12:00:23,434 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 892) no Hoare annotation was computed. [2023-04-01 12:00:23,434 INFO L899 garLoopResultBuilder]: For program point L886-1(lines 886 892) no Hoare annotation was computed. [2023-04-01 12:00:23,435 INFO L895 garLoopResultBuilder]: At program point L911(lines 866 913) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,435 INFO L895 garLoopResultBuilder]: At program point L878(line 878) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,435 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 882) no Hoare annotation was computed. [2023-04-01 12:00:23,435 INFO L899 garLoopResultBuilder]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2023-04-01 12:00:23,435 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 856 921) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,435 INFO L895 garLoopResultBuilder]: At program point L914(lines 865 915) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,435 INFO L895 garLoopResultBuilder]: At program point L904(line 904) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,435 INFO L899 garLoopResultBuilder]: For program point L902(lines 902 908) no Hoare annotation was computed. [2023-04-01 12:00:23,435 INFO L895 garLoopResultBuilder]: At program point L902-1(lines 896 909) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,435 INFO L899 garLoopResultBuilder]: For program point L867(lines 866 913) no Hoare annotation was computed. [2023-04-01 12:00:23,435 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 856 921) no Hoare annotation was computed. [2023-04-01 12:00:23,436 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 173 181) the Hoare annotation is: true [2023-04-01 12:00:23,436 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 173 181) no Hoare annotation was computed. [2023-04-01 12:00:23,436 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 141 163) no Hoare annotation was computed. [2023-04-01 12:00:23,436 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 141 163) no Hoare annotation was computed. [2023-04-01 12:00:23,436 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 749 756) no Hoare annotation was computed. [2023-04-01 12:00:23,436 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 749 756) no Hoare annotation was computed. [2023-04-01 12:00:23,436 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 164 172) no Hoare annotation was computed. [2023-04-01 12:00:23,436 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 164 172) no Hoare annotation was computed. [2023-04-01 12:00:23,436 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 132 140) the Hoare annotation is: true [2023-04-01 12:00:23,436 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 132 140) no Hoare annotation was computed. [2023-04-01 12:00:23,436 INFO L895 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2023-04-01 12:00:23,436 INFO L895 garLoopResultBuilder]: At program point L703(lines 703 709) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-04-01 12:00:23,436 INFO L895 garLoopResultBuilder]: At program point L698(line 698) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-01 12:00:23,437 INFO L899 garLoopResultBuilder]: For program point L696(lines 695 714) no Hoare annotation was computed. [2023-04-01 12:00:23,437 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 692 715) no Hoare annotation was computed. [2023-04-01 12:00:23,437 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 692 715) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-04-01 12:00:23,437 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 692 715) no Hoare annotation was computed. [2023-04-01 12:00:23,437 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 589 618) no Hoare annotation was computed. [2023-04-01 12:00:23,437 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2023-04-01 12:00:23,437 INFO L902 garLoopResultBuilder]: At program point L603-1(lines 603 607) the Hoare annotation is: true [2023-04-01 12:00:23,437 INFO L902 garLoopResultBuilder]: At program point L599-2(lines 599 613) the Hoare annotation is: true [2023-04-01 12:00:23,437 INFO L902 garLoopResultBuilder]: At program point L595(line 595) the Hoare annotation is: true [2023-04-01 12:00:23,437 INFO L899 garLoopResultBuilder]: For program point L595-1(line 595) no Hoare annotation was computed. [2023-04-01 12:00:23,437 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 589 618) the Hoare annotation is: true [2023-04-01 12:00:23,437 INFO L902 garLoopResultBuilder]: At program point L614(lines 589 618) the Hoare annotation is: true [2023-04-01 12:00:23,438 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2023-04-01 12:00:23,438 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 96 107) no Hoare annotation was computed. [2023-04-01 12:00:23,438 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 96 107) the Hoare annotation is: true [2023-04-01 12:00:23,438 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 108 119) no Hoare annotation was computed. [2023-04-01 12:00:23,438 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 108 119) the Hoare annotation is: true [2023-04-01 12:00:23,438 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 79 86) the Hoare annotation is: true [2023-04-01 12:00:23,438 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2023-04-01 12:00:23,438 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 79 86) no Hoare annotation was computed. [2023-04-01 12:00:23,438 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 570 576) the Hoare annotation is: true [2023-04-01 12:00:23,438 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 570 576) no Hoare annotation was computed. [2023-04-01 12:00:23,438 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 776 784) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 776 784) the Hoare annotation is: true [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point L815(line 815) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point L815-1(line 815) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 785 820) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 785 820) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 189 234) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 189 234) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 652 661) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 652 661) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 652 661) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point L770-1(line 770) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 765 775) no Hoare annotation was computed. [2023-04-01 12:00:23,439 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 765 775) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point L770(line 770) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 757 764) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 757 764) the Hoare annotation is: true [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 456 501) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 456 501) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 398) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point L403(lines 402 422) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point L434-1(line 434) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 440) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 353 455) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 353 455) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point L418(line 418) no Hoare annotation was computed. [2023-04-01 12:00:23,440 INFO L899 garLoopResultBuilder]: For program point L418-1(line 418) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 381) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 353 455) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point L402-2(lines 402 422) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point L423(lines 401 424) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 553 562) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 553 562) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 120 131) the Hoare annotation is: true [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 120 131) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 644 650) no Hoare annotation was computed. [2023-04-01 12:00:23,441 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 644 650) the Hoare annotation is: true [2023-04-01 12:00:23,442 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 12:00:23,442 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2023-04-01 12:00:23,442 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 12:00:23,442 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 12:00:23,442 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2023-04-01 12:00:23,442 INFO L895 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0))) [2023-04-01 12:00:23,442 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed. [2023-04-01 12:00:23,442 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2023-04-01 12:00:23,442 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 53 77) no Hoare annotation was computed. [2023-04-01 12:00:23,442 INFO L902 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: true [2023-04-01 12:00:23,442 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-04-01 12:00:23,442 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification1_spec__1EXIT(lines 53 77) no Hoare annotation was computed. [2023-04-01 12:00:23,442 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 53 77) the Hoare annotation is: true [2023-04-01 12:00:23,443 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2023-04-01 12:00:23,446 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-01 12:00:23,447 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 12:00:23,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 12:00:23 BoogieIcfgContainer [2023-04-01 12:00:23,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 12:00:23,457 INFO L158 Benchmark]: Toolchain (without parser) took 3878.39ms. Allocated memory was 176.2MB in the beginning and 234.9MB in the end (delta: 58.7MB). Free memory was 142.0MB in the beginning and 137.4MB in the end (delta: 4.6MB). Peak memory consumption was 118.8MB. Max. memory is 8.0GB. [2023-04-01 12:00:23,457 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 12:00:23,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.80ms. Allocated memory is still 176.2MB. Free memory was 142.0MB in the beginning and 123.6MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 12:00:23,458 INFO L158 Benchmark]: Boogie Preprocessor took 118.20ms. Allocated memory is still 176.2MB. Free memory was 123.6MB in the beginning and 120.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 12:00:23,458 INFO L158 Benchmark]: RCFGBuilder took 977.18ms. Allocated memory is still 176.2MB. Free memory was 120.5MB in the beginning and 144.3MB in the end (delta: -23.9MB). Peak memory consumption was 62.6MB. Max. memory is 8.0GB. [2023-04-01 12:00:23,458 INFO L158 Benchmark]: TraceAbstraction took 2080.89ms. Allocated memory was 176.2MB in the beginning and 234.9MB in the end (delta: 58.7MB). Free memory was 143.8MB in the beginning and 137.4MB in the end (delta: 6.4MB). Peak memory consumption was 119.2MB. Max. memory is 8.0GB. [2023-04-01 12:00:23,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 688.80ms. Allocated memory is still 176.2MB. Free memory was 142.0MB in the beginning and 123.6MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 118.20ms. Allocated memory is still 176.2MB. Free memory was 123.6MB in the beginning and 120.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 977.18ms. Allocated memory is still 176.2MB. Free memory was 120.5MB in the beginning and 144.3MB in the end (delta: -23.9MB). Peak memory consumption was 62.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2080.89ms. Allocated memory was 176.2MB in the beginning and 234.9MB in the end (delta: 58.7MB). Free memory was 143.8MB in the beginning and 137.4MB in the end (delta: 6.4MB). Peak memory consumption was 119.2MB. 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: 83]: 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 39 procedures, 175 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 295 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 288 mSDsluCounter, 1204 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 787 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 526 IncrementalHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 417 mSDtfsCounter, 526 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=327occurred in iteration=4, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 430 PreInvPairs, 472 NumberOfFragments, 468 HoareAnnotationTreeSize, 430 FomulaSimplifications, 25 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 52 FomulaSimplificationsInter, 1946 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 231 ConstructedInterpolants, 0 QuantifiedInterpolants, 429 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 865]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && splverifierCounter == 0) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-01 12:00:23,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...