/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/product-lines/minepump_spec2_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:01:22,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:01:22,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:01:22,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:01:22,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:01:22,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:01:22,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:01:22,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:01:22,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:01:22,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:01:22,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:01:22,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:01:22,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:01:22,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:01:22,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:01:22,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:01:22,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:01:22,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:01:22,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:01:22,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:01:22,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:01:22,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:01:22,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:01:22,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:01:22,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:01:22,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:01:22,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:01:22,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:01:22,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:01:22,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:01:22,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:01:22,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:01:22,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:01:22,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:01:22,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:01:22,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:01:22,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:01:22,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:01:22,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:01:22,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:01:22,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:01:22,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 12:01:22,934 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:01:22,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:01:22,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:01:22,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:01:22,936 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:01:22,936 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:01:22,937 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:01:22,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:01:22,937 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:01:22,937 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:01:22,938 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:01:22,938 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:01:22,938 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:01:22,938 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:01:22,938 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:01:22,938 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:01:22,938 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:01:22,938 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:01:22,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:01:22,939 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:01:22,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:01:22,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:01:22,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:01:22,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:01:22,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:01:22,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:01:22,940 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:01:22,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:01:22,941 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:01:22,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:01:22,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:01:22,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:01:22,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:01:22,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:01:22,941 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:01:22,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:01:22,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:01:22,942 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:01:22,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:01:22,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:01:22,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:01:22,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:01:23,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:01:23,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:01:23,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:01:23,163 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:01:23,164 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:01:23,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product19.cil.c [2023-04-01 12:01:24,337 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:01:24,526 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:01:24,526 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product19.cil.c [2023-04-01 12:01:24,536 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c393a25d6/1f89f4b1e1eb45f1b0793fa83581fc5c/FLAG1b7e7b410 [2023-04-01 12:01:24,545 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c393a25d6/1f89f4b1e1eb45f1b0793fa83581fc5c [2023-04-01 12:01:24,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:01:24,548 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:01:24,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:01:24,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:01:24,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:01:24,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17152630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24, skipping insertion in model container [2023-04-01 12:01:24,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:01:24,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:01:24,757 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_spec2_product19.cil.c[1605,1618] [2023-04-01 12:01:24,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:01:24,855 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:01:24,864 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_spec2_product19.cil.c[1605,1618] [2023-04-01 12:01:24,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:01:24,929 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:01:24,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24 WrapperNode [2023-04-01 12:01:24,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:01:24,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:01:24,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:01:24,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:01:24,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,970 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:01:24,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:01:24,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:01:24,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:01:24,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:01:25,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:01:25,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 12:01:25,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 12:01:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:01:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:01:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 12:01:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:01:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 12:01:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 12:01:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 12:01:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 12:01:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 12:01:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 12:01:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 12:01:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-01 12:01:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 12:01:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 12:01:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 12:01:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 12:01:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 12:01:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 12:01:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:01:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:01:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:01:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 12:01:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 12:01:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 12:01:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:01:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:01:25,218 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:01:25,220 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:01:25,578 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:01:25,714 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:01:25,714 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 12:01:25,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:01:25 BoogieIcfgContainer [2023-04-01 12:01:25,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:01:25,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:01:25,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:01:25,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:01:25,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:01:24" (1/3) ... [2023-04-01 12:01:25,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f967471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:01:25, skipping insertion in model container [2023-04-01 12:01:25,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24" (2/3) ... [2023-04-01 12:01:25,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f967471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:01:25, skipping insertion in model container [2023-04-01 12:01:25,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:01:25" (3/3) ... [2023-04-01 12:01:25,726 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product19.cil.c [2023-04-01 12:01:25,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:01:25,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:01:25,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:01:25,826 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;@5fc46b9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:01:25,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:01:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 73 states have internal predecessors, (79), 43 states have call successors, (43), 26 states have call predecessors, (43), 26 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2023-04-01 12:01:25,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-01 12:01:25,837 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:25,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:01:25,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:25,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:25,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1686885129, now seen corresponding path program 1 times [2023-04-01 12:01:25,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:25,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022009447] [2023-04-01 12:01:25,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:25,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:26,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:26,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:26,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022009447] [2023-04-01 12:01:26,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022009447] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:26,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:26,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 12:01:26,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134369563] [2023-04-01 12:01:26,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:26,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 12:01:26,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:26,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 12:01:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:01:26,085 INFO L87 Difference]: Start difference. First operand has 134 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 73 states have internal predecessors, (79), 43 states have call successors, (43), 26 states have call predecessors, (43), 26 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:01:26,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:26,159 INFO L93 Difference]: Finished difference Result 194 states and 239 transitions. [2023-04-01 12:01:26,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 12:01:26,161 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2023-04-01 12:01:26,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:26,168 INFO L225 Difference]: With dead ends: 194 [2023-04-01 12:01:26,168 INFO L226 Difference]: Without dead ends: 99 [2023-04-01 12:01:26,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:01:26,175 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:26,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:01:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-04-01 12:01:26,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-04-01 12:01:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 60 states have internal predecessors, (64), 28 states have call successors, (28), 24 states have call predecessors, (28), 19 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-01 12:01:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2023-04-01 12:01:26,225 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 46 [2023-04-01 12:01:26,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:26,225 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2023-04-01 12:01:26,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:01:26,225 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2023-04-01 12:01:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 12:01:26,227 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:26,227 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] [2023-04-01 12:01:26,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 12:01:26,228 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:26,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:26,228 INFO L85 PathProgramCache]: Analyzing trace with hash 708566558, now seen corresponding path program 1 times [2023-04-01 12:01:26,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:26,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531427202] [2023-04-01 12:01:26,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:26,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:26,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:26,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531427202] [2023-04-01 12:01:26,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531427202] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:26,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:26,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 12:01:26,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300237354] [2023-04-01 12:01:26,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:26,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 12:01:26,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:26,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 12:01:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:01:26,353 INFO L87 Difference]: Start difference. First operand 99 states and 115 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:01:26,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:26,412 INFO L93 Difference]: Finished difference Result 145 states and 167 transitions. [2023-04-01 12:01:26,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 12:01:26,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-04-01 12:01:26,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:26,414 INFO L225 Difference]: With dead ends: 145 [2023-04-01 12:01:26,414 INFO L226 Difference]: Without dead ends: 91 [2023-04-01 12:01:26,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:01:26,415 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 11 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:26,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 166 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:01:26,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-04-01 12:01:26,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-04-01 12:01:26,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 55 states have internal predecessors, (58), 25 states have call successors, (25), 23 states have call predecessors, (25), 19 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2023-04-01 12:01:26,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2023-04-01 12:01:26,424 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 47 [2023-04-01 12:01:26,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:26,424 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2023-04-01 12:01:26,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:01:26,424 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2023-04-01 12:01:26,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-01 12:01:26,425 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:26,425 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] [2023-04-01 12:01:26,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 12:01:26,426 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:26,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:26,426 INFO L85 PathProgramCache]: Analyzing trace with hash 649870203, now seen corresponding path program 1 times [2023-04-01 12:01:26,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:26,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929355185] [2023-04-01 12:01:26,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:26,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:26,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:26,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:26,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929355185] [2023-04-01 12:01:26,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929355185] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:26,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:26,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:01:26,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579706143] [2023-04-01 12:01:26,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:26,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:01:26,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:01:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:01:26,659 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 12:01:26,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:26,942 INFO L93 Difference]: Finished difference Result 268 states and 321 transitions. [2023-04-01 12:01:26,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 12:01:26,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 50 [2023-04-01 12:01:26,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:26,948 INFO L225 Difference]: With dead ends: 268 [2023-04-01 12:01:26,948 INFO L226 Difference]: Without dead ends: 202 [2023-04-01 12:01:26,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-01 12:01:26,956 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 202 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:26,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 423 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 12:01:26,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-04-01 12:01:26,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 194. [2023-04-01 12:01:26,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 105 states have (on average 1.3047619047619048) internal successors, (137), 123 states have internal predecessors, (137), 49 states have call successors, (49), 45 states have call predecessors, (49), 39 states have return successors, (46), 37 states have call predecessors, (46), 45 states have call successors, (46) [2023-04-01 12:01:26,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 232 transitions. [2023-04-01 12:01:26,983 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 232 transitions. Word has length 50 [2023-04-01 12:01:26,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:26,984 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 232 transitions. [2023-04-01 12:01:26,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 12:01:26,984 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 232 transitions. [2023-04-01 12:01:26,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-04-01 12:01:26,985 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:26,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:01:26,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 12:01:26,986 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:26,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:26,986 INFO L85 PathProgramCache]: Analyzing trace with hash 556782933, now seen corresponding path program 1 times [2023-04-01 12:01:26,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:26,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290019132] [2023-04-01 12:01:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:26,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:27,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:27,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:27,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290019132] [2023-04-01 12:01:27,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290019132] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:27,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:27,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 12:01:27,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340438531] [2023-04-01 12:01:27,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:27,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 12:01:27,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:27,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 12:01:27,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 12:01:27,134 INFO L87 Difference]: Start difference. First operand 194 states and 232 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-01 12:01:27,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:27,284 INFO L93 Difference]: Finished difference Result 514 states and 633 transitions. [2023-04-01 12:01:27,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 12:01:27,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 55 [2023-04-01 12:01:27,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:27,292 INFO L225 Difference]: With dead ends: 514 [2023-04-01 12:01:27,292 INFO L226 Difference]: Without dead ends: 345 [2023-04-01 12:01:27,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 12:01:27,305 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 63 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:27,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 381 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:01:27,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-04-01 12:01:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 333. [2023-04-01 12:01:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 184 states have (on average 1.298913043478261) internal successors, (239), 216 states have internal predecessors, (239), 82 states have call successors, (82), 74 states have call predecessors, (82), 66 states have return successors, (80), 62 states have call predecessors, (80), 78 states have call successors, (80) [2023-04-01 12:01:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 401 transitions. [2023-04-01 12:01:27,357 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 401 transitions. Word has length 55 [2023-04-01 12:01:27,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:27,358 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 401 transitions. [2023-04-01 12:01:27,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-01 12:01:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 401 transitions. [2023-04-01 12:01:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-01 12:01:27,361 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:27,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:01:27,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 12:01:27,362 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:27,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:27,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1811303774, now seen corresponding path program 1 times [2023-04-01 12:01:27,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:27,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517320437] [2023-04-01 12:01:27,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:27,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:27,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:27,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517320437] [2023-04-01 12:01:27,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517320437] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:27,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:27,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:01:27,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827208040] [2023-04-01 12:01:27,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:27,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:01:27,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:27,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:01:27,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:01:27,509 INFO L87 Difference]: Start difference. First operand 333 states and 401 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 12:01:27,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:27,662 INFO L93 Difference]: Finished difference Result 561 states and 704 transitions. [2023-04-01 12:01:27,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 12:01:27,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 58 [2023-04-01 12:01:27,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:27,663 INFO L225 Difference]: With dead ends: 561 [2023-04-01 12:01:27,663 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 12:01:27,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-04-01 12:01:27,664 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 67 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:27,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 133 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:01:27,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 12:01:27,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 12:01:27,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-01 12:01:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 12:01:27,665 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2023-04-01 12:01:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:27,665 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 12:01:27,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 12:01:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 12:01:27,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 12:01:27,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 12:01:27,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 12:01:27,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 12:01:28,305 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-01 12:01:28,308 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-01 12:01:28,309 INFO L899 garLoopResultBuilder]: For program point L158(lines 135 159) no Hoare annotation was computed. [2023-04-01 12:01:28,309 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 146) no Hoare annotation was computed. [2023-04-01 12:01:28,309 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 111 166) no Hoare annotation was computed. [2023-04-01 12:01:28,309 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 111 166) no Hoare annotation was computed. [2023-04-01 12:01:28,309 INFO L899 garLoopResultBuilder]: For program point L136-2(lines 136 157) no Hoare annotation was computed. [2023-04-01 12:01:28,309 INFO L899 garLoopResultBuilder]: For program point L193-2(lines 193 218) no Hoare annotation was computed. [2023-04-01 12:01:28,309 INFO L899 garLoopResultBuilder]: For program point L219(lines 192 220) no Hoare annotation was computed. [2023-04-01 12:01:28,310 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 167 226) no Hoare annotation was computed. [2023-04-01 12:01:28,310 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-04-01 12:01:28,310 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2023-04-01 12:01:28,310 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 167 226) no Hoare annotation was computed. [2023-04-01 12:01:28,310 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 167 226) no Hoare annotation was computed. [2023-04-01 12:01:28,310 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 203) no Hoare annotation was computed. [2023-04-01 12:01:28,310 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 927 935) no Hoare annotation was computed. [2023-04-01 12:01:28,310 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 927 935) the Hoare annotation is: true [2023-04-01 12:01:28,310 INFO L899 garLoopResultBuilder]: For program point L609(line 609) no Hoare annotation was computed. [2023-04-01 12:01:28,312 INFO L895 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,312 INFO L895 garLoopResultBuilder]: At program point L607(line 607) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,312 INFO L895 garLoopResultBuilder]: At program point L607-1(line 607) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,312 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 601 623) no Hoare annotation was computed. [2023-04-01 12:01:28,314 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 601 623) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,314 INFO L895 garLoopResultBuilder]: At program point L613(line 613) 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) (= main_~tmp~3 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,321 INFO L895 garLoopResultBuilder]: At program point L613-1(line 613) 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) (= main_~tmp~3 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,321 INFO L899 garLoopResultBuilder]: For program point L611(lines 611 618) no Hoare annotation was computed. [2023-04-01 12:01:28,321 INFO L899 garLoopResultBuilder]: For program point L611-1(lines 611 618) no Hoare annotation was computed. [2023-04-01 12:01:28,321 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 554 577) no Hoare annotation was computed. [2023-04-01 12:01:28,321 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 554 577) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L571(line 571) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L568(line 568) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L565(line 565) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L562(line 562) no Hoare annotation was computed. [2023-04-01 12:01:28,322 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2023-04-01 12:01:28,323 INFO L899 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2023-04-01 12:01:28,323 INFO L899 garLoopResultBuilder]: For program point L559(line 559) no Hoare annotation was computed. [2023-04-01 12:01:28,323 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 554 577) no Hoare annotation was computed. [2023-04-01 12:01:28,323 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 819 833) no Hoare annotation was computed. [2023-04-01 12:01:28,329 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 819 833) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= |old(~systemActive~0)| 0) .cse0 (not (= 0 ~systemActive~0))) (or .cse0 (= 1 ~systemActive~0) (not (= |old(~systemActive~0)| 1))) (or .cse0 (= ~pumpRunning~0 0)))) [2023-04-01 12:01:28,329 INFO L895 garLoopResultBuilder]: At program point L825(line 825) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-01 12:01:28,329 INFO L899 garLoopResultBuilder]: For program point L823(lines 823 829) no Hoare annotation was computed. [2023-04-01 12:01:28,329 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 800 818) the Hoare annotation is: true [2023-04-01 12:01:28,329 INFO L902 garLoopResultBuilder]: At program point L807(line 807) the Hoare annotation is: true [2023-04-01 12:01:28,329 INFO L899 garLoopResultBuilder]: For program point L807-1(line 807) no Hoare annotation was computed. [2023-04-01 12:01:28,329 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 800 818) no Hoare annotation was computed. [2023-04-01 12:01:28,330 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 913 919) no Hoare annotation was computed. [2023-04-01 12:01:28,331 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 913 919) the Hoare annotation is: true [2023-04-01 12:01:28,331 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 378 423) no Hoare annotation was computed. [2023-04-01 12:01:28,331 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 378 423) no Hoare annotation was computed. [2023-04-01 12:01:28,331 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 703 727) no Hoare annotation was computed. [2023-04-01 12:01:28,331 INFO L895 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-04-01 12:01:28,332 INFO L899 garLoopResultBuilder]: For program point L722-1(lines 703 727) no Hoare annotation was computed. [2023-04-01 12:01:28,332 INFO L895 garLoopResultBuilder]: At program point L717(line 717) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-01 12:01:28,332 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 703 727) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-04-01 12:01:28,332 INFO L895 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-01 12:01:28,333 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 719) no Hoare annotation was computed. [2023-04-01 12:01:28,333 INFO L895 garLoopResultBuilder]: At program point L709(line 709) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-01 12:01:28,333 INFO L899 garLoopResultBuilder]: For program point L709-1(line 709) no Hoare annotation was computed. [2023-04-01 12:01:28,333 INFO L899 garLoopResultBuilder]: For program point L707(lines 707 724) no Hoare annotation was computed. [2023-04-01 12:01:28,333 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 695 701) no Hoare annotation was computed. [2023-04-01 12:01:28,333 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 695 701) the Hoare annotation is: true [2023-04-01 12:01:28,333 INFO L899 garLoopResultBuilder]: For program point L865(lines 865 871) no Hoare annotation was computed. [2023-04-01 12:01:28,333 INFO L899 garLoopResultBuilder]: For program point L865-1(lines 865 871) no Hoare annotation was computed. [2023-04-01 12:01:28,333 INFO L895 garLoopResultBuilder]: At program point L890(lines 845 892) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,333 INFO L895 garLoopResultBuilder]: At program point L857(line 857) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,333 INFO L899 garLoopResultBuilder]: For program point L855(lines 855 861) no Hoare annotation was computed. [2023-04-01 12:01:28,333 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 835 900) no Hoare annotation was computed. [2023-04-01 12:01:28,334 INFO L899 garLoopResultBuilder]: For program point L855-1(lines 855 861) no Hoare annotation was computed. [2023-04-01 12:01:28,334 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 835 900) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,334 INFO L895 garLoopResultBuilder]: At program point L893(lines 844 894) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,334 INFO L895 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,334 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 887) no Hoare annotation was computed. [2023-04-01 12:01:28,334 INFO L895 garLoopResultBuilder]: At program point L881-1(lines 875 888) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,334 INFO L899 garLoopResultBuilder]: For program point L846(lines 845 892) no Hoare annotation was computed. [2023-04-01 12:01:28,334 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 888) no Hoare annotation was computed. [2023-04-01 12:01:28,335 INFO L895 garLoopResultBuilder]: At program point L867(line 867) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,335 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 835 900) no Hoare annotation was computed. [2023-04-01 12:01:28,335 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 511 519) the Hoare annotation is: true [2023-04-01 12:01:28,335 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 511 519) no Hoare annotation was computed. [2023-04-01 12:01:28,336 INFO L902 garLoopResultBuilder]: At program point L641(line 641) the Hoare annotation is: true [2023-04-01 12:01:28,336 INFO L899 garLoopResultBuilder]: For program point L641-1(line 641) no Hoare annotation was computed. [2023-04-01 12:01:28,336 INFO L895 garLoopResultBuilder]: At program point L650(line 650) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2023-04-01 12:01:28,336 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 635 663) the Hoare annotation is: true [2023-04-01 12:01:28,336 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 654) no Hoare annotation was computed. [2023-04-01 12:01:28,336 INFO L899 garLoopResultBuilder]: For program point L647(lines 647 657) no Hoare annotation was computed. [2023-04-01 12:01:28,336 INFO L895 garLoopResultBuilder]: At program point L645(line 645) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0))) [2023-04-01 12:01:28,336 INFO L899 garLoopResultBuilder]: For program point L645-1(line 645) no Hoare annotation was computed. [2023-04-01 12:01:28,336 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__2EXIT(lines 635 663) no Hoare annotation was computed. [2023-04-01 12:01:28,336 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 660) no Hoare annotation was computed. [2023-04-01 12:01:28,336 INFO L899 garLoopResultBuilder]: For program point L643-1(lines 635 663) no Hoare annotation was computed. [2023-04-01 12:01:28,336 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 479 501) no Hoare annotation was computed. [2023-04-01 12:01:28,336 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 479 501) no Hoare annotation was computed. [2023-04-01 12:01:28,337 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 627 634) the Hoare annotation is: true [2023-04-01 12:01:28,337 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1EXIT(lines 627 634) no Hoare annotation was computed. [2023-04-01 12:01:28,337 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 728 735) no Hoare annotation was computed. [2023-04-01 12:01:28,337 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 728 735) no Hoare annotation was computed. [2023-04-01 12:01:28,337 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 502 510) no Hoare annotation was computed. [2023-04-01 12:01:28,337 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 502 510) no Hoare annotation was computed. [2023-04-01 12:01:28,337 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 470 478) the Hoare annotation is: true [2023-04-01 12:01:28,337 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 470 478) no Hoare annotation was computed. [2023-04-01 12:01:28,337 INFO L895 garLoopResultBuilder]: At program point L684(line 684) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2023-04-01 12:01:28,338 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 671 694) no Hoare annotation was computed. [2023-04-01 12:01:28,338 INFO L895 garLoopResultBuilder]: At program point L682(lines 682 688) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-04-01 12:01:28,338 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 671 694) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-04-01 12:01:28,338 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 671 694) no Hoare annotation was computed. [2023-04-01 12:01:28,338 INFO L895 garLoopResultBuilder]: At program point L677(line 677) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-01 12:01:28,338 INFO L899 garLoopResultBuilder]: For program point L675(lines 674 693) no Hoare annotation was computed. [2023-04-01 12:01:28,338 INFO L899 garLoopResultBuilder]: For program point L544(line 544) no Hoare annotation was computed. [2023-04-01 12:01:28,339 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 523 552) no Hoare annotation was computed. [2023-04-01 12:01:28,339 INFO L899 garLoopResultBuilder]: For program point L537(lines 537 541) no Hoare annotation was computed. [2023-04-01 12:01:28,339 INFO L902 garLoopResultBuilder]: At program point L537-1(lines 537 541) the Hoare annotation is: true [2023-04-01 12:01:28,339 INFO L902 garLoopResultBuilder]: At program point L533-2(lines 533 547) the Hoare annotation is: true [2023-04-01 12:01:28,339 INFO L902 garLoopResultBuilder]: At program point L529(line 529) the Hoare annotation is: true [2023-04-01 12:01:28,339 INFO L899 garLoopResultBuilder]: For program point L529-1(line 529) no Hoare annotation was computed. [2023-04-01 12:01:28,339 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 523 552) the Hoare annotation is: true [2023-04-01 12:01:28,340 INFO L902 garLoopResultBuilder]: At program point L548(lines 523 552) the Hoare annotation is: true [2023-04-01 12:01:28,340 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 434 445) no Hoare annotation was computed. [2023-04-01 12:01:28,340 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 434 445) the Hoare annotation is: true [2023-04-01 12:01:28,340 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 446 457) no Hoare annotation was computed. [2023-04-01 12:01:28,340 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 446 457) the Hoare annotation is: true [2023-04-01 12:01:28,340 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 50 57) the Hoare annotation is: true [2023-04-01 12:01:28,340 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-04-01 12:01:28,340 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 50 57) no Hoare annotation was computed. [2023-04-01 12:01:28,340 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 920 926) the Hoare annotation is: true [2023-04-01 12:01:28,340 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 920 926) no Hoare annotation was computed. [2023-04-01 12:01:28,341 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 755 763) no Hoare annotation was computed. [2023-04-01 12:01:28,341 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 755 763) the Hoare annotation is: true [2023-04-01 12:01:28,341 INFO L899 garLoopResultBuilder]: For program point L794(line 794) no Hoare annotation was computed. [2023-04-01 12:01:28,341 INFO L899 garLoopResultBuilder]: For program point L794-1(line 794) no Hoare annotation was computed. [2023-04-01 12:01:28,341 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 764 799) no Hoare annotation was computed. [2023-04-01 12:01:28,341 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 764 799) no Hoare annotation was computed. [2023-04-01 12:01:28,341 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 65 110) no Hoare annotation was computed. [2023-04-01 12:01:28,341 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 65 110) no Hoare annotation was computed. [2023-04-01 12:01:28,341 INFO L895 garLoopResultBuilder]: At program point L592(line 592) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,341 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 587 597) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 587 597) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 587 597) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point L749(line 749) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point L749-1(line 749) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 744 754) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 744 754) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 736 743) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 736 743) the Hoare annotation is: true [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 332 377) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 332 377) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point L279(lines 278 298) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point L310(line 310) no Hoare annotation was computed. [2023-04-01 12:01:28,342 INFO L899 garLoopResultBuilder]: For program point L310-1(line 310) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 316) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 229 331) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point L294(line 294) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 229 331) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point L294-1(line 294) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point L253(lines 253 257) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point L278-2(lines 278 298) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 229 331) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point L299(lines 277 300) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 274) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 903 912) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 903 912) no Hoare annotation was computed. [2023-04-01 12:01:28,343 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-04-01 12:01:28,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 12:01:28,345 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-01 12:01:28,345 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-01 12:01:28,346 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 458 469) the Hoare annotation is: true [2023-04-01 12:01:28,346 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 458 469) no Hoare annotation was computed. [2023-04-01 12:01:28,346 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 578 584) no Hoare annotation was computed. [2023-04-01 12:01:28,346 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 578 584) the Hoare annotation is: true [2023-04-01 12:01:28,346 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 12:01:28,346 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2023-04-01 12:01:28,346 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 12:01:28,346 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 12:01:28,349 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-01 12:01:28,350 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 12:01:28,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 12:01:28 BoogieIcfgContainer [2023-04-01 12:01:28,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 12:01:28,360 INFO L158 Benchmark]: Toolchain (without parser) took 3811.96ms. Allocated memory was 256.9MB in the beginning and 330.3MB in the end (delta: 73.4MB). Free memory was 204.6MB in the beginning and 276.2MB in the end (delta: -71.6MB). Peak memory consumption was 127.6MB. Max. memory is 8.0GB. [2023-04-01 12:01:28,360 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 12:01:28,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.32ms. Allocated memory is still 256.9MB. Free memory was 204.0MB in the beginning and 185.7MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 12:01:28,361 INFO L158 Benchmark]: Boogie Preprocessor took 44.84ms. Allocated memory is still 256.9MB. Free memory was 185.7MB in the beginning and 182.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 12:01:28,361 INFO L158 Benchmark]: RCFGBuilder took 739.74ms. Allocated memory is still 256.9MB. Free memory was 182.5MB in the beginning and 123.3MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2023-04-01 12:01:28,361 INFO L158 Benchmark]: TraceAbstraction took 2640.80ms. Allocated memory was 256.9MB in the beginning and 330.3MB in the end (delta: 73.4MB). Free memory was 122.8MB in the beginning and 276.2MB in the end (delta: -153.4MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. [2023-04-01 12:01:28,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 381.32ms. Allocated memory is still 256.9MB. Free memory was 204.0MB in the beginning and 185.7MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.84ms. Allocated memory is still 256.9MB. Free memory was 185.7MB in the beginning and 182.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 739.74ms. Allocated memory is still 256.9MB. Free memory was 182.5MB in the beginning and 123.3MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2640.80ms. Allocated memory was 256.9MB in the beginning and 330.3MB in the end (delta: 73.4MB). Free memory was 122.8MB in the beginning and 276.2MB in the end (delta: -153.4MB). Peak memory consumption was 45.8MB. 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: 54]: 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 40 procedures, 179 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 350 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 343 mSDsluCounter, 1214 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 778 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 544 IncrementalHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 436 mSDtfsCounter, 544 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=333occurred 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, 54 LocationsWithAnnotation, 432 PreInvPairs, 474 NumberOfFragments, 492 HoareAnnotationTreeSize, 432 FomulaSimplifications, 25 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 54 FomulaSimplificationsInter, 1971 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 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: 523]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 845]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && splverifierCounter == 0) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-01 12:01:28,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...