/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 05:54:36,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 05:54:36,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 05:54:36,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 05:54:36,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 05:54:36,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 05:54:36,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 05:54:36,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 05:54:36,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 05:54:36,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 05:54:36,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 05:54:36,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 05:54:36,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 05:54:36,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 05:54:36,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 05:54:36,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 05:54:36,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 05:54:36,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 05:54:36,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 05:54:36,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 05:54:36,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 05:54:36,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 05:54:36,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 05:54:36,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 05:54:36,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 05:54:36,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 05:54:36,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 05:54:36,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 05:54:36,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 05:54:36,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 05:54:36,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 05:54:36,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 05:54:36,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 05:54:36,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 05:54:36,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 05:54:36,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 05:54:36,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 05:54:36,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 05:54:36,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 05:54:36,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 05:54:36,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 05:54:36,734 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 05:54:36,769 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 05:54:36,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 05:54:36,770 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 05:54:36,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 05:54:36,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 05:54:36,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 05:54:36,771 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 05:54:36,771 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 05:54:36,772 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 05:54:36,772 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 05:54:36,772 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 05:54:36,773 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 05:54:36,773 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 05:54:36,773 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 05:54:36,773 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 05:54:36,773 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 05:54:36,773 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 05:54:36,773 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 05:54:36,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 05:54:36,774 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 05:54:36,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 05:54:36,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 05:54:36,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 05:54:36,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 05:54:36,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 05:54:36,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 05:54:36,775 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 05:54:36,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 05:54:36,775 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 05:54:36,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 05:54:36,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 05:54:36,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 05:54:36,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:54:36,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 05:54:36,776 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 05:54:36,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 05:54:36,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 05:54:36,776 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 05:54:36,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 05:54:36,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 05:54:36,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 05:54:36,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 05:54:37,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 05:54:37,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 05:54:37,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 05:54:37,029 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 05:54:37,029 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 05:54:37,031 INFO L432 ainManager$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 05:54:38,340 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 05:54:38,603 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 05:54:38,604 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2023-04-01 05:54:38,612 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3907302d9/b7496b93e38444a79936a814cc8d21bf/FLAGb07a199a8 [2023-04-01 05:54:38,624 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3907302d9/b7496b93e38444a79936a814cc8d21bf [2023-04-01 05:54:38,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 05:54:38,628 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 05:54:38,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 05:54:38,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 05:54:38,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 05:54:38,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:38,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200fe37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38, skipping insertion in model container [2023-04-01 05:54:38,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:38,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 05:54:38,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 05:54:38,804 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 05:54:38,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:54:38,899 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 05:54:38,912 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 05:54:38,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:54:38,965 INFO L208 MainTranslator]: Completed translation [2023-04-01 05:54:38,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38 WrapperNode [2023-04-01 05:54:38,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 05:54:38,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 05:54:38,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 05:54:38,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 05:54:38,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:38,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:38,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:38,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:39,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:39,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:39,029 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:39,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:39,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 05:54:39,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 05:54:39,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 05:54:39,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 05:54:39,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (1/1) ... [2023-04-01 05:54:39,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:54:39,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:54:39,082 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 05:54:39,098 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 05:54:39,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 05:54:39,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 05:54:39,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 05:54:39,123 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 05:54:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-01 05:54:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 05:54:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 05:54:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 05:54:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 05:54:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 05:54:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 05:54:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 05:54:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-01 05:54:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 05:54:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 05:54:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 05:54:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 05:54:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 05:54:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 05:54:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 05:54:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 05:54:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 05:54:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 05:54:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 05:54:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 05:54:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 05:54:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 05:54:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 05:54:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 05:54:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 05:54:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 05:54:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 05:54:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 05:54:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 05:54:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 05:54:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 05:54:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 05:54:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 05:54:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 05:54:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-01 05:54:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 05:54:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 05:54:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 05:54:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 05:54:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 05:54:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-01 05:54:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 05:54:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 05:54:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 05:54:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 05:54:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 05:54:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 05:54:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 05:54:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 05:54:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 05:54:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 05:54:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 05:54:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 05:54:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 05:54:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 05:54:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 05:54:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 05:54:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 05:54:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 05:54:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 05:54:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 05:54:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 05:54:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 05:54:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 05:54:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-01 05:54:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 05:54:39,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 05:54:39,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 05:54:39,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 05:54:39,323 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 05:54:39,326 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 05:54:39,784 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 05:54:39,916 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 05:54:39,916 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 05:54:39,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:54:39 BoogieIcfgContainer [2023-04-01 05:54:39,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 05:54:39,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 05:54:39,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 05:54:39,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 05:54:39,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 05:54:38" (1/3) ... [2023-04-01 05:54:39,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c6f165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:54:39, skipping insertion in model container [2023-04-01 05:54:39,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:38" (2/3) ... [2023-04-01 05:54:39,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c6f165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:54:39, skipping insertion in model container [2023-04-01 05:54:39,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:54:39" (3/3) ... [2023-04-01 05:54:39,927 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product19.cil.c [2023-04-01 05:54:39,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 05:54:39,945 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 05:54:40,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 05:54:40,013 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;@78b16093, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 05:54:40,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 05:54:40,017 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 05:54:40,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-01 05:54:40,025 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:40,026 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 05:54:40,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:40,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:40,031 INFO L85 PathProgramCache]: Analyzing trace with hash 721098008, now seen corresponding path program 1 times [2023-04-01 05:54:40,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:40,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676431555] [2023-04-01 05:54:40,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:40,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:40,257 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 05:54:40,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:40,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676431555] [2023-04-01 05:54:40,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676431555] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:40,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:40,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 05:54:40,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830377929] [2023-04-01 05:54:40,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:40,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 05:54:40,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:40,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 05:54:40,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:54:40,307 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 05:54:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:40,384 INFO L93 Difference]: Finished difference Result 189 states and 232 transitions. [2023-04-01 05:54:40,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 05:54:40,388 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 05:54:40,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:40,400 INFO L225 Difference]: With dead ends: 189 [2023-04-01 05:54:40,400 INFO L226 Difference]: Without dead ends: 95 [2023-04-01 05:54:40,404 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 05:54:40,408 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 05:54:40,409 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 05:54:40,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-04-01 05:54:40,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-04-01 05:54:40,458 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 05:54:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2023-04-01 05:54:40,466 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 42 [2023-04-01 05:54:40,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:40,467 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2023-04-01 05:54:40,467 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 05:54:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2023-04-01 05:54:40,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-01 05:54:40,473 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:40,473 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 05:54:40,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 05:54:40,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:40,474 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:40,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2095000290, now seen corresponding path program 1 times [2023-04-01 05:54:40,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:40,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491143242] [2023-04-01 05:54:40,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:40,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:40,595 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 05:54:40,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:40,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491143242] [2023-04-01 05:54:40,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491143242] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:40,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:40,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:54:40,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349556917] [2023-04-01 05:54:40,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:40,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:54:40,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:40,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:54:40,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:54:40,600 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 05:54:40,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:40,655 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2023-04-01 05:54:40,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:54:40,655 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 05:54:40,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:40,658 INFO L225 Difference]: With dead ends: 140 [2023-04-01 05:54:40,659 INFO L226 Difference]: Without dead ends: 87 [2023-04-01 05:54:40,663 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 05:54:40,665 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 05:54:40,665 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 05:54:40,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-04-01 05:54:40,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-04-01 05:54:40,676 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 05:54:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2023-04-01 05:54:40,677 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 43 [2023-04-01 05:54:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:40,678 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2023-04-01 05:54:40,678 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 05:54:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2023-04-01 05:54:40,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-01 05:54:40,679 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:40,679 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 05:54:40,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 05:54:40,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:40,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:40,680 INFO L85 PathProgramCache]: Analyzing trace with hash -388581172, now seen corresponding path program 1 times [2023-04-01 05:54:40,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:40,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008164003] [2023-04-01 05:54:40,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:40,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:40,920 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 05:54:40,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:40,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008164003] [2023-04-01 05:54:40,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008164003] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:40,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:40,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 05:54:40,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445549462] [2023-04-01 05:54:40,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:40,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 05:54:40,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:40,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 05:54:40,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:54:40,925 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 05:54:41,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:41,216 INFO L93 Difference]: Finished difference Result 261 states and 310 transitions. [2023-04-01 05:54:41,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 05:54:41,217 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 05:54:41,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:41,220 INFO L225 Difference]: With dead ends: 261 [2023-04-01 05:54:41,220 INFO L226 Difference]: Without dead ends: 196 [2023-04-01 05:54:41,221 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 05:54:41,222 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 151 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 05:54:41,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 444 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 05:54:41,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-04-01 05:54:41,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2023-04-01 05:54:41,247 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 05:54:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 223 transitions. [2023-04-01 05:54:41,248 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 223 transitions. Word has length 46 [2023-04-01 05:54:41,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:41,249 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 223 transitions. [2023-04-01 05:54:41,249 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 05:54:41,249 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 223 transitions. [2023-04-01 05:54:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 05:54:41,251 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:41,251 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 05:54:41,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 05:54:41,251 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:41,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:41,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1429099679, now seen corresponding path program 1 times [2023-04-01 05:54:41,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:41,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012579701] [2023-04-01 05:54:41,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:41,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:41,391 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 05:54:41,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:41,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012579701] [2023-04-01 05:54:41,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012579701] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:41,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:41,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 05:54:41,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709729524] [2023-04-01 05:54:41,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:41,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 05:54:41,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:41,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 05:54:41,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 05:54:41,393 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 05:54:41,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:41,537 INFO L93 Difference]: Finished difference Result 505 states and 618 transitions. [2023-04-01 05:54:41,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 05:54:41,537 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 05:54:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:41,544 INFO L225 Difference]: With dead ends: 505 [2023-04-01 05:54:41,544 INFO L226 Difference]: Without dead ends: 339 [2023-04-01 05:54:41,547 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 05:54:41,553 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 05:54:41,554 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 05:54:41,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-04-01 05:54:41,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 327. [2023-04-01 05:54:41,588 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 05:54:41,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 392 transitions. [2023-04-01 05:54:41,590 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 392 transitions. Word has length 51 [2023-04-01 05:54:41,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:41,590 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 392 transitions. [2023-04-01 05:54:41,591 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 05:54:41,591 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 392 transitions. [2023-04-01 05:54:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-01 05:54:41,598 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:41,598 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 05:54:41,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 05:54:41,598 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:41,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:41,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1517666051, now seen corresponding path program 1 times [2023-04-01 05:54:41,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:41,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628041008] [2023-04-01 05:54:41,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:41,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:41,769 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 05:54:41,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:41,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628041008] [2023-04-01 05:54:41,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628041008] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:41,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:41,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 05:54:41,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558005710] [2023-04-01 05:54:41,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:41,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 05:54:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:41,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 05:54:41,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:54:41,772 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 05:54:41,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:41,977 INFO L93 Difference]: Finished difference Result 555 states and 692 transitions. [2023-04-01 05:54:41,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 05:54:41,978 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 05:54:41,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:41,979 INFO L225 Difference]: With dead ends: 555 [2023-04-01 05:54:41,979 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 05:54:41,981 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 05:54:41,981 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 05:54:41,982 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 05:54:41,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 05:54:41,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 05:54:41,982 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 05:54:41,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 05:54:41,983 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2023-04-01 05:54:41,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:41,983 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 05:54:41,983 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 05:54:41,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 05:54:41,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 05:54:41,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 05:54:41,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 05:54:41,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 05:54:42,741 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-01 05:54:42,742 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-01 05:54:42,742 INFO L899 garLoopResultBuilder]: For program point L282(lines 259 283) no Hoare annotation was computed. [2023-04-01 05:54:42,742 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 270) no Hoare annotation was computed. [2023-04-01 05:54:42,742 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 235 290) no Hoare annotation was computed. [2023-04-01 05:54:42,742 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 235 290) no Hoare annotation was computed. [2023-04-01 05:54:42,742 INFO L899 garLoopResultBuilder]: For program point L260-2(lines 260 281) no Hoare annotation was computed. [2023-04-01 05:54:42,742 INFO L899 garLoopResultBuilder]: For program point L317-2(lines 317 342) no Hoare annotation was computed. [2023-04-01 05:54:42,742 INFO L899 garLoopResultBuilder]: For program point L343(lines 316 344) no Hoare annotation was computed. [2023-04-01 05:54:42,742 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 291 350) no Hoare annotation was computed. [2023-04-01 05:54:42,743 INFO L899 garLoopResultBuilder]: For program point L336(line 336) no Hoare annotation was computed. [2023-04-01 05:54:42,743 INFO L899 garLoopResultBuilder]: For program point L336-1(line 336) no Hoare annotation was computed. [2023-04-01 05:54:42,743 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 291 350) no Hoare annotation was computed. [2023-04-01 05:54:42,743 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 291 350) no Hoare annotation was computed. [2023-04-01 05:54:42,743 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2023-04-01 05:54:42,743 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 577 585) no Hoare annotation was computed. [2023-04-01 05:54:42,743 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 577 585) the Hoare annotation is: true [2023-04-01 05:54:42,744 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 05:54:42,744 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 679) no Hoare annotation was computed. [2023-04-01 05:54:42,744 INFO L899 garLoopResultBuilder]: For program point L672-1(lines 672 679) no Hoare annotation was computed. [2023-04-01 05:54:42,744 INFO L899 garLoopResultBuilder]: For program point L670(line 670) no Hoare annotation was computed. [2023-04-01 05:54:42,744 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 05:54:42,744 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 05:54:42,744 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 05:54:42,744 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 662 684) no Hoare annotation was computed. [2023-04-01 05:54:42,745 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 05:54:42,745 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 05:54:42,745 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 620 643) no Hoare annotation was computed. [2023-04-01 05:54:42,745 INFO L899 garLoopResultBuilder]: For program point L638(line 638) no Hoare annotation was computed. [2023-04-01 05:54:42,745 INFO L899 garLoopResultBuilder]: For program point L637(line 637) no Hoare annotation was computed. [2023-04-01 05:54:42,745 INFO L899 garLoopResultBuilder]: For program point L636(line 636) no Hoare annotation was computed. [2023-04-01 05:54:42,745 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 620 643) no Hoare annotation was computed. [2023-04-01 05:54:42,745 INFO L899 garLoopResultBuilder]: For program point L635(line 635) no Hoare annotation was computed. [2023-04-01 05:54:42,745 INFO L899 garLoopResultBuilder]: For program point L634(line 634) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point L633(line 633) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point L632(line 632) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point L631(line 631) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point L629(line 629) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point L628(line 628) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point L627(line 627) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point L626(line 626) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point L625(line 625) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 620 643) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 840 854) no Hoare annotation was computed. [2023-04-01 05:54:42,746 INFO L895 garLoopResultBuilder]: At program point L846(line 846) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-01 05:54:42,747 INFO L899 garLoopResultBuilder]: For program point L844(lines 844 850) no Hoare annotation was computed. [2023-04-01 05:54:42,747 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 05:54:42,747 INFO L902 garLoopResultBuilder]: At program point L828(line 828) the Hoare annotation is: true [2023-04-01 05:54:42,747 INFO L899 garLoopResultBuilder]: For program point L828-1(line 828) no Hoare annotation was computed. [2023-04-01 05:54:42,747 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 821 839) the Hoare annotation is: true [2023-04-01 05:54:42,747 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 821 839) no Hoare annotation was computed. [2023-04-01 05:54:42,747 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 563 569) no Hoare annotation was computed. [2023-04-01 05:54:42,747 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 563 569) the Hoare annotation is: true [2023-04-01 05:54:42,748 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 502 547) no Hoare annotation was computed. [2023-04-01 05:54:42,748 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 502 547) no Hoare annotation was computed. [2023-04-01 05:54:42,748 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 05:54:42,748 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 740) no Hoare annotation was computed. [2023-04-01 05:54:42,748 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 05:54:42,748 INFO L899 garLoopResultBuilder]: For program point L730-1(line 730) no Hoare annotation was computed. [2023-04-01 05:54:42,748 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 745) no Hoare annotation was computed. [2023-04-01 05:54:42,748 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 724 748) no Hoare annotation was computed. [2023-04-01 05:54:42,748 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 05:54:42,754 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 05:54:42,755 INFO L899 garLoopResultBuilder]: For program point L743-1(lines 724 748) no Hoare annotation was computed. [2023-04-01 05:54:42,755 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 05:54:42,755 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 716 722) no Hoare annotation was computed. [2023-04-01 05:54:42,755 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 716 722) the Hoare annotation is: true [2023-04-01 05:54:42,755 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 909) no Hoare annotation was computed. [2023-04-01 05:54:42,755 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 05:54:42,755 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 856 921) no Hoare annotation was computed. [2023-04-01 05:54:42,755 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 892) no Hoare annotation was computed. [2023-04-01 05:54:42,756 INFO L899 garLoopResultBuilder]: For program point L886-1(lines 886 892) no Hoare annotation was computed. [2023-04-01 05:54:42,756 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 05:54:42,756 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 05:54:42,757 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 882) no Hoare annotation was computed. [2023-04-01 05:54:42,757 INFO L899 garLoopResultBuilder]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2023-04-01 05:54:42,757 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 05:54:42,757 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 05:54:42,757 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 05:54:42,757 INFO L899 garLoopResultBuilder]: For program point L902(lines 902 908) no Hoare annotation was computed. [2023-04-01 05:54:42,757 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 05:54:42,757 INFO L899 garLoopResultBuilder]: For program point L867(lines 866 913) no Hoare annotation was computed. [2023-04-01 05:54:42,758 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 856 921) no Hoare annotation was computed. [2023-04-01 05:54:42,758 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 173 181) the Hoare annotation is: true [2023-04-01 05:54:42,758 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 173 181) no Hoare annotation was computed. [2023-04-01 05:54:42,758 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 141 163) no Hoare annotation was computed. [2023-04-01 05:54:42,758 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 141 163) no Hoare annotation was computed. [2023-04-01 05:54:42,758 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 749 756) no Hoare annotation was computed. [2023-04-01 05:54:42,759 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 749 756) no Hoare annotation was computed. [2023-04-01 05:54:42,759 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 164 172) no Hoare annotation was computed. [2023-04-01 05:54:42,759 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 164 172) no Hoare annotation was computed. [2023-04-01 05:54:42,759 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 132 140) the Hoare annotation is: true [2023-04-01 05:54:42,759 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 132 140) no Hoare annotation was computed. [2023-04-01 05:54:42,759 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 05:54:42,759 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 05:54:42,759 INFO L895 garLoopResultBuilder]: At program point L698(line 698) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-01 05:54:42,759 INFO L899 garLoopResultBuilder]: For program point L696(lines 695 714) no Hoare annotation was computed. [2023-04-01 05:54:42,759 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 692 715) no Hoare annotation was computed. [2023-04-01 05:54:42,760 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 05:54:42,760 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 692 715) no Hoare annotation was computed. [2023-04-01 05:54:42,760 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 589 618) no Hoare annotation was computed. [2023-04-01 05:54:42,760 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2023-04-01 05:54:42,760 INFO L902 garLoopResultBuilder]: At program point L603-1(lines 603 607) the Hoare annotation is: true [2023-04-01 05:54:42,760 INFO L902 garLoopResultBuilder]: At program point L599-2(lines 599 613) the Hoare annotation is: true [2023-04-01 05:54:42,760 INFO L902 garLoopResultBuilder]: At program point L595(line 595) the Hoare annotation is: true [2023-04-01 05:54:42,760 INFO L899 garLoopResultBuilder]: For program point L595-1(line 595) no Hoare annotation was computed. [2023-04-01 05:54:42,761 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 589 618) the Hoare annotation is: true [2023-04-01 05:54:42,761 INFO L902 garLoopResultBuilder]: At program point L614(lines 589 618) the Hoare annotation is: true [2023-04-01 05:54:42,761 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2023-04-01 05:54:42,761 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 96 107) no Hoare annotation was computed. [2023-04-01 05:54:42,761 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 96 107) the Hoare annotation is: true [2023-04-01 05:54:42,761 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 108 119) no Hoare annotation was computed. [2023-04-01 05:54:42,761 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 108 119) the Hoare annotation is: true [2023-04-01 05:54:42,761 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 79 86) the Hoare annotation is: true [2023-04-01 05:54:42,761 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2023-04-01 05:54:42,762 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 79 86) no Hoare annotation was computed. [2023-04-01 05:54:42,762 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 570 576) the Hoare annotation is: true [2023-04-01 05:54:42,762 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 570 576) no Hoare annotation was computed. [2023-04-01 05:54:42,762 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 776 784) no Hoare annotation was computed. [2023-04-01 05:54:42,763 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 776 784) the Hoare annotation is: true [2023-04-01 05:54:42,763 INFO L899 garLoopResultBuilder]: For program point L815(line 815) no Hoare annotation was computed. [2023-04-01 05:54:42,763 INFO L899 garLoopResultBuilder]: For program point L815-1(line 815) no Hoare annotation was computed. [2023-04-01 05:54:42,763 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 785 820) no Hoare annotation was computed. [2023-04-01 05:54:42,763 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 785 820) no Hoare annotation was computed. [2023-04-01 05:54:42,763 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 189 234) no Hoare annotation was computed. [2023-04-01 05:54:42,763 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 189 234) no Hoare annotation was computed. [2023-04-01 05:54:42,764 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 652 661) no Hoare annotation was computed. [2023-04-01 05:54:42,764 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 05:54:42,764 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 652 661) no Hoare annotation was computed. [2023-04-01 05:54:42,764 INFO L899 garLoopResultBuilder]: For program point L770-1(line 770) no Hoare annotation was computed. [2023-04-01 05:54:42,764 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 765 775) no Hoare annotation was computed. [2023-04-01 05:54:42,764 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 765 775) no Hoare annotation was computed. [2023-04-01 05:54:42,767 INFO L899 garLoopResultBuilder]: For program point L770(line 770) no Hoare annotation was computed. [2023-04-01 05:54:42,767 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 757 764) no Hoare annotation was computed. [2023-04-01 05:54:42,767 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 757 764) the Hoare annotation is: true [2023-04-01 05:54:42,767 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 456 501) no Hoare annotation was computed. [2023-04-01 05:54:42,767 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 456 501) no Hoare annotation was computed. [2023-04-01 05:54:42,767 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 398) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point L403(lines 402 422) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point L434-1(line 434) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 440) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 353 455) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 353 455) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point L418(line 418) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point L418-1(line 418) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 381) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 353 455) no Hoare annotation was computed. [2023-04-01 05:54:42,768 INFO L899 garLoopResultBuilder]: For program point L402-2(lines 402 422) no Hoare annotation was computed. [2023-04-01 05:54:42,769 INFO L899 garLoopResultBuilder]: For program point L423(lines 401 424) no Hoare annotation was computed. [2023-04-01 05:54:42,769 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 553 562) no Hoare annotation was computed. [2023-04-01 05:54:42,770 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 553 562) no Hoare annotation was computed. [2023-04-01 05:54:42,770 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-04-01 05:54:42,770 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:54:42,770 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 120 131) the Hoare annotation is: true [2023-04-01 05:54:42,770 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 120 131) no Hoare annotation was computed. [2023-04-01 05:54:42,770 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:54:42,770 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-01 05:54:42,770 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 644 650) no Hoare annotation was computed. [2023-04-01 05:54:42,770 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 644 650) the Hoare annotation is: true [2023-04-01 05:54:42,770 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:54:42,771 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 05:54:42,771 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 05:54:42,771 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 05:54:42,771 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2023-04-01 05:54:42,771 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 05:54:42,771 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed. [2023-04-01 05:54:42,771 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2023-04-01 05:54:42,773 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 53 77) no Hoare annotation was computed. [2023-04-01 05:54:42,773 INFO L902 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: true [2023-04-01 05:54:42,777 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-04-01 05:54:42,777 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification1_spec__1EXIT(lines 53 77) no Hoare annotation was computed. [2023-04-01 05:54:42,778 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 53 77) the Hoare annotation is: true [2023-04-01 05:54:42,778 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2023-04-01 05:54:42,781 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-01 05:54:42,783 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 05:54:42,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 05:54:42 BoogieIcfgContainer [2023-04-01 05:54:42,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 05:54:42,799 INFO L158 Benchmark]: Toolchain (without parser) took 4170.80ms. Allocated memory is still 232.8MB. Free memory was 188.7MB in the beginning and 114.8MB in the end (delta: 73.9MB). Peak memory consumption was 75.2MB. Max. memory is 8.0GB. [2023-04-01 05:54:42,799 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory was 148.9MB in the beginning and 148.7MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:54:42,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.81ms. Allocated memory is still 232.8MB. Free memory was 188.4MB in the beginning and 170.2MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 05:54:42,799 INFO L158 Benchmark]: Boogie Preprocessor took 79.08ms. Allocated memory is still 232.8MB. Free memory was 170.2MB in the beginning and 166.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 05:54:42,799 INFO L158 Benchmark]: RCFGBuilder took 872.05ms. Allocated memory is still 232.8MB. Free memory was 166.7MB in the beginning and 185.0MB in the end (delta: -18.2MB). Peak memory consumption was 44.3MB. Max. memory is 8.0GB. [2023-04-01 05:54:42,800 INFO L158 Benchmark]: TraceAbstraction took 2876.44ms. Allocated memory is still 232.8MB. Free memory was 184.4MB in the beginning and 114.8MB in the end (delta: 69.6MB). Peak memory consumption was 69.6MB. Max. memory is 8.0GB. [2023-04-01 05:54:42,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory was 148.9MB in the beginning and 148.7MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 337.81ms. Allocated memory is still 232.8MB. Free memory was 188.4MB in the beginning and 170.2MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 79.08ms. Allocated memory is still 232.8MB. Free memory was 170.2MB in the beginning and 166.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 872.05ms. Allocated memory is still 232.8MB. Free memory was 166.7MB in the beginning and 185.0MB in the end (delta: -18.2MB). Peak memory consumption was 44.3MB. Max. memory is 8.0GB. * TraceAbstraction took 2876.44ms. Allocated memory is still 232.8MB. Free memory was 184.4MB in the beginning and 114.8MB in the end (delta: 69.6MB). Peak memory consumption was 69.6MB. 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: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 295 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 288 mSDsluCounter, 1204 SdHoareTripleChecker+Invalid, 0.4s 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, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s 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 05:54:42,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...