./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:03,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:03,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:03,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:03,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:03,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:03,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:03,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:03,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:03,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:03,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:03,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:03,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:03,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:03,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:03,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:03,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:03,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:03,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:03,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:03,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:03,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:03,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:03,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:03,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:03,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:03,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:03,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:03,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:03,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:03,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:03,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:03,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:03,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:03,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:03,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:03,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:03,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:03,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:03,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:03,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:03,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:03,906 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:03,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:03,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:03,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:03,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:03,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:03,908 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:03,909 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:03,909 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:03,909 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:03,909 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:03,910 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:03,910 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:03,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:03,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:03,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:03,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:03,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:03,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:03,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:03,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:03,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:03,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:03,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:03,912 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:03,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:03,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:03,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:03,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:03,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:03,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:03,914 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:03,914 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 [2022-02-21 04:18:04,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:04,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:04,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:04,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:04,136 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:04,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2022-02-21 04:18:04,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e75eea4/8309d26b608648188dd805965659be0b/FLAGb57b31cbe [2022-02-21 04:18:04,593 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:04,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2022-02-21 04:18:04,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e75eea4/8309d26b608648188dd805965659be0b/FLAGb57b31cbe [2022-02-21 04:18:04,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e75eea4/8309d26b608648188dd805965659be0b [2022-02-21 04:18:04,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:04,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:04,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:04,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:04,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:04,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:04" (1/1) ... [2022-02-21 04:18:04,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42dcdc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:04, skipping insertion in model container [2022-02-21 04:18:04,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:04" (1/1) ... [2022-02-21 04:18:04,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:04,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:04,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c[18533,18546] [2022-02-21 04:18:04,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:04,947 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:05,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c[18533,18546] [2022-02-21 04:18:05,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:05,030 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:05,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05 WrapperNode [2022-02-21 04:18:05,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:05,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:05,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:05,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:05,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,119 INFO L137 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 56, calls inlined = 138, statements flattened = 1004 [2022-02-21 04:18:05,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:05,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:05,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:05,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:05,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:05,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:05,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:05,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:05,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:05,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:05,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:05,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:05,281 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:05,283 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:05,793 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:05,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:05,799 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:05,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:05 BoogieIcfgContainer [2022-02-21 04:18:05,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:05,802 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:05,802 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:05,809 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:05,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:05,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:04" (1/3) ... [2022-02-21 04:18:05,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c7c7d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:05, skipping insertion in model container [2022-02-21 04:18:05,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:05,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05" (2/3) ... [2022-02-21 04:18:05,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c7c7d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:05, skipping insertion in model container [2022-02-21 04:18:05,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:05,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:05" (3/3) ... [2022-02-21 04:18:05,812 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product54.cil.c [2022-02-21 04:18:05,848 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:05,849 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:05,849 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:05,849 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:05,849 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:05,850 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:05,850 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:05,850 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:05,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 271 states, 270 states have (on average 1.3703703703703705) internal successors, (370), 270 states have internal predecessors, (370), 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) [2022-02-21 04:18:05,948 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 177 [2022-02-21 04:18:05,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:05,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:05,953 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:05,954 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:05,954 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:05,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 271 states, 270 states have (on average 1.3703703703703705) internal successors, (370), 270 states have internal predecessors, (370), 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) [2022-02-21 04:18:05,981 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 177 [2022-02-21 04:18:05,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:05,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:05,983 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:05,984 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:05,991 INFO L791 eck$LassoCheckResult]: Stem: 266#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 181#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~4#1, main_~tmp~7#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 94#L990true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 140#L983true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 206#L998true main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 49#L476true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 91#L450true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 179#L65-2true [2022-02-21 04:18:05,991 INFO L793 eck$LassoCheckResult]: Loop: 179#L65-2true assume !false; 41#L66true assume test_~splverifierCounter~0#1 < 4; 265#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 200#L75true assume !(0 != test_~tmp~0#1); 113#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 43#L85true assume !(0 != test_~tmp___0~0#1); 145#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 226#L95true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 263#L103true assume 0 != test_~tmp___1~0#1; 233#L103-2true assume { :begin_inline_timeShift } true; 38#L139true assume !(0 != ~pumpRunning~0); 160#L139-2true assume !(0 != ~systemActive~0); 163#L146-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 11#L931true __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 115#L373true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 162#L373-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 128#L156true assume { :end_inline_timeShift } true; 179#L65-2true [2022-02-21 04:18:05,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:05,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:06,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:06,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959064262] [2022-02-21 04:18:06,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:06,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:06,143 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:06,188 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:06,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:06,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1150976386, now seen corresponding path program 1 times [2022-02-21 04:18:06,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:06,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823826944] [2022-02-21 04:18:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:06,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:06,208 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:06,220 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:06,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:06,223 INFO L85 PathProgramCache]: Analyzing trace with hash 219294782, now seen corresponding path program 1 times [2022-02-21 04:18:06,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:06,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024937322] [2022-02-21 04:18:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:06,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:06,323 INFO L290 TraceCheckUtils]: 0: Hoare triple {279#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {281#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:06,324 INFO L290 TraceCheckUtils]: 1: Hoare triple {281#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~4#1, main_~tmp~7#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {281#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:06,324 INFO L290 TraceCheckUtils]: 2: Hoare triple {281#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {281#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:06,325 INFO L290 TraceCheckUtils]: 3: Hoare triple {281#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; {282#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:06,325 INFO L290 TraceCheckUtils]: 4: Hoare triple {282#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret24#1;havoc main_#t~ret24#1; {283#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:18:06,325 INFO L290 TraceCheckUtils]: 5: Hoare triple {283#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,326 INFO L290 TraceCheckUtils]: 6: Hoare triple {284#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,326 INFO L290 TraceCheckUtils]: 7: Hoare triple {284#(not (= 0 ~systemActive~0))} assume !false; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,327 INFO L290 TraceCheckUtils]: 8: Hoare triple {284#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,327 INFO L290 TraceCheckUtils]: 9: Hoare triple {284#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,328 INFO L290 TraceCheckUtils]: 10: Hoare triple {284#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,328 INFO L290 TraceCheckUtils]: 11: Hoare triple {284#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,329 INFO L290 TraceCheckUtils]: 12: Hoare triple {284#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,329 INFO L290 TraceCheckUtils]: 13: Hoare triple {284#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,330 INFO L290 TraceCheckUtils]: 14: Hoare triple {284#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,330 INFO L290 TraceCheckUtils]: 15: Hoare triple {284#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,330 INFO L290 TraceCheckUtils]: 16: Hoare triple {284#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,331 INFO L290 TraceCheckUtils]: 17: Hoare triple {284#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {284#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:06,331 INFO L290 TraceCheckUtils]: 18: Hoare triple {284#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {280#false} is VALID [2022-02-21 04:18:06,332 INFO L290 TraceCheckUtils]: 19: Hoare triple {280#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {280#false} is VALID [2022-02-21 04:18:06,332 INFO L290 TraceCheckUtils]: 20: Hoare triple {280#false} __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; {280#false} is VALID [2022-02-21 04:18:06,333 INFO L290 TraceCheckUtils]: 21: Hoare triple {280#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); {280#false} is VALID [2022-02-21 04:18:06,333 INFO L290 TraceCheckUtils]: 22: Hoare triple {280#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {280#false} is VALID [2022-02-21 04:18:06,334 INFO L290 TraceCheckUtils]: 23: Hoare triple {280#false} assume { :end_inline_timeShift } true; {280#false} is VALID [2022-02-21 04:18:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:06,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:06,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024937322] [2022-02-21 04:18:06,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024937322] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:06,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:06,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:06,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917355155] [2022-02-21 04:18:06,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:06,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:06,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:06,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:06,486 INFO L87 Difference]: Start difference. First operand has 271 states, 270 states have (on average 1.3703703703703705) internal successors, (370), 270 states have internal predecessors, (370), 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) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-02-21 04:18:07,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:07,006 INFO L93 Difference]: Finished difference Result 268 states and 356 transitions. [2022-02-21 04:18:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:07,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-02-21 04:18:07,026 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:07,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 268 states and 356 transitions. [2022-02-21 04:18:07,037 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 173 [2022-02-21 04:18:07,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 268 states to 258 states and 346 transitions. [2022-02-21 04:18:07,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 258 [2022-02-21 04:18:07,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 258 [2022-02-21 04:18:07,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 258 states and 346 transitions. [2022-02-21 04:18:07,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:07,050 INFO L681 BuchiCegarLoop]: Abstraction has 258 states and 346 transitions. [2022-02-21 04:18:07,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states and 346 transitions. [2022-02-21 04:18:07,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-02-21 04:18:07,086 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:07,087 INFO L82 GeneralOperation]: Start isEquivalent. First operand 258 states and 346 transitions. Second operand has 258 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 257 states have internal predecessors, (346), 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) [2022-02-21 04:18:07,088 INFO L74 IsIncluded]: Start isIncluded. First operand 258 states and 346 transitions. Second operand has 258 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 257 states have internal predecessors, (346), 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) [2022-02-21 04:18:07,090 INFO L87 Difference]: Start difference. First operand 258 states and 346 transitions. Second operand has 258 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 257 states have internal predecessors, (346), 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) [2022-02-21 04:18:07,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:07,109 INFO L93 Difference]: Finished difference Result 258 states and 346 transitions. [2022-02-21 04:18:07,110 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 346 transitions. [2022-02-21 04:18:07,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:07,112 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:07,112 INFO L74 IsIncluded]: Start isIncluded. First operand has 258 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 257 states have internal predecessors, (346), 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) Second operand 258 states and 346 transitions. [2022-02-21 04:18:07,113 INFO L87 Difference]: Start difference. First operand has 258 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 257 states have internal predecessors, (346), 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) Second operand 258 states and 346 transitions. [2022-02-21 04:18:07,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:07,119 INFO L93 Difference]: Finished difference Result 258 states and 346 transitions. [2022-02-21 04:18:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 346 transitions. [2022-02-21 04:18:07,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:07,121 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:07,121 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:07,121 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 257 states have internal predecessors, (346), 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) [2022-02-21 04:18:07,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 346 transitions. [2022-02-21 04:18:07,129 INFO L704 BuchiCegarLoop]: Abstraction has 258 states and 346 transitions. [2022-02-21 04:18:07,129 INFO L587 BuchiCegarLoop]: Abstraction has 258 states and 346 transitions. [2022-02-21 04:18:07,129 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:07,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 346 transitions. [2022-02-21 04:18:07,131 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 173 [2022-02-21 04:18:07,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:07,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:07,131 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:07,131 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:07,132 INFO L791 eck$LassoCheckResult]: Stem: 813#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 780#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~4#1, main_~tmp~7#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 705#L990 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 706#L983 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 752#L998 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 643#L476 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 644#L450 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 702#L65-2 [2022-02-21 04:18:07,132 INFO L793 eck$LassoCheckResult]: Loop: 702#L65-2 assume !false; 631#L66 assume test_~splverifierCounter~0#1 < 4; 632#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 789#L75 assume !(0 != test_~tmp~0#1); 729#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 635#L85 assume !(0 != test_~tmp___0~0#1); 637#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 756#L95 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 805#L103 assume 0 != test_~tmp___1~0#1; 809#L103-2 assume { :begin_inline_timeShift } true; 623#L139 assume !(0 != ~pumpRunning~0); 624#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 670#L223 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret11#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 671#L899 isMethaneAlarm_#t~ret11#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret11#1;havoc isMethaneAlarm_#t~ret11#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 772#L267 processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; 707#L227 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 708#L257 assume { :end_inline_deactivatePump } true; 588#L223-1 assume { :end_inline_processEnvironment } true; 759#L146-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 576#L931 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 577#L373 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 731#L373-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 741#L156 assume { :end_inline_timeShift } true; 702#L65-2 [2022-02-21 04:18:07,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:07,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:07,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541552336] [2022-02-21 04:18:07,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:07,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,144 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,173 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:07,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:07,174 INFO L85 PathProgramCache]: Analyzing trace with hash 520278859, now seen corresponding path program 1 times [2022-02-21 04:18:07,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:07,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884701864] [2022-02-21 04:18:07,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:07,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:07,188 INFO L290 TraceCheckUtils]: 0: Hoare triple {1336#true} assume !false; {1336#true} is VALID [2022-02-21 04:18:07,189 INFO L290 TraceCheckUtils]: 1: Hoare triple {1336#true} assume test_~splverifierCounter~0#1 < 4; {1336#true} is VALID [2022-02-21 04:18:07,189 INFO L290 TraceCheckUtils]: 2: Hoare triple {1336#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {1336#true} is VALID [2022-02-21 04:18:07,189 INFO L290 TraceCheckUtils]: 3: Hoare triple {1336#true} assume !(0 != test_~tmp~0#1); {1336#true} is VALID [2022-02-21 04:18:07,189 INFO L290 TraceCheckUtils]: 4: Hoare triple {1336#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1336#true} is VALID [2022-02-21 04:18:07,190 INFO L290 TraceCheckUtils]: 5: Hoare triple {1336#true} assume !(0 != test_~tmp___0~0#1); {1336#true} is VALID [2022-02-21 04:18:07,190 INFO L290 TraceCheckUtils]: 6: Hoare triple {1336#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1336#true} is VALID [2022-02-21 04:18:07,190 INFO L290 TraceCheckUtils]: 7: Hoare triple {1336#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {1336#true} is VALID [2022-02-21 04:18:07,190 INFO L290 TraceCheckUtils]: 8: Hoare triple {1336#true} assume 0 != test_~tmp___1~0#1; {1336#true} is VALID [2022-02-21 04:18:07,190 INFO L290 TraceCheckUtils]: 9: Hoare triple {1336#true} assume { :begin_inline_timeShift } true; {1336#true} is VALID [2022-02-21 04:18:07,191 INFO L290 TraceCheckUtils]: 10: Hoare triple {1336#true} assume !(0 != ~pumpRunning~0); {1338#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:07,191 INFO L290 TraceCheckUtils]: 11: Hoare triple {1338#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {1338#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:07,192 INFO L290 TraceCheckUtils]: 12: Hoare triple {1338#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret11#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {1337#false} is VALID [2022-02-21 04:18:07,192 INFO L290 TraceCheckUtils]: 13: Hoare triple {1337#false} isMethaneAlarm_#t~ret11#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret11#1;havoc isMethaneAlarm_#t~ret11#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; {1337#false} is VALID [2022-02-21 04:18:07,192 INFO L290 TraceCheckUtils]: 14: Hoare triple {1337#false} processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; {1337#false} is VALID [2022-02-21 04:18:07,192 INFO L290 TraceCheckUtils]: 15: Hoare triple {1337#false} assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1337#false} is VALID [2022-02-21 04:18:07,192 INFO L290 TraceCheckUtils]: 16: Hoare triple {1337#false} assume { :end_inline_deactivatePump } true; {1337#false} is VALID [2022-02-21 04:18:07,193 INFO L290 TraceCheckUtils]: 17: Hoare triple {1337#false} assume { :end_inline_processEnvironment } true; {1337#false} is VALID [2022-02-21 04:18:07,193 INFO L290 TraceCheckUtils]: 18: Hoare triple {1337#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {1337#false} is VALID [2022-02-21 04:18:07,193 INFO L290 TraceCheckUtils]: 19: Hoare triple {1337#false} __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; {1337#false} is VALID [2022-02-21 04:18:07,193 INFO L290 TraceCheckUtils]: 20: Hoare triple {1337#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); {1337#false} is VALID [2022-02-21 04:18:07,193 INFO L290 TraceCheckUtils]: 21: Hoare triple {1337#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {1337#false} is VALID [2022-02-21 04:18:07,194 INFO L290 TraceCheckUtils]: 22: Hoare triple {1337#false} assume { :end_inline_timeShift } true; {1337#false} is VALID [2022-02-21 04:18:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:07,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:07,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884701864] [2022-02-21 04:18:07,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884701864] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:07,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:07,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:07,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958674802] [2022-02-21 04:18:07,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:07,195 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:07,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:07,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:07,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:07,196 INFO L87 Difference]: Start difference. First operand 258 states and 346 transitions. cyclomatic complexity: 90 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-02-21 04:18:07,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:07,435 INFO L93 Difference]: Finished difference Result 269 states and 340 transitions. [2022-02-21 04:18:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:07,435 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-02-21 04:18:07,448 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:07,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 340 transitions. [2022-02-21 04:18:07,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 186 [2022-02-21 04:18:07,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 269 states and 340 transitions. [2022-02-21 04:18:07,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 269 [2022-02-21 04:18:07,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 269 [2022-02-21 04:18:07,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 269 states and 340 transitions. [2022-02-21 04:18:07,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:07,461 INFO L681 BuchiCegarLoop]: Abstraction has 269 states and 340 transitions. [2022-02-21 04:18:07,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states and 340 transitions. [2022-02-21 04:18:07,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2022-02-21 04:18:07,467 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:07,467 INFO L82 GeneralOperation]: Start isEquivalent. First operand 269 states and 340 transitions. Second operand has 269 states, 269 states have (on average 1.2639405204460967) internal successors, (340), 268 states have internal predecessors, (340), 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) [2022-02-21 04:18:07,468 INFO L74 IsIncluded]: Start isIncluded. First operand 269 states and 340 transitions. Second operand has 269 states, 269 states have (on average 1.2639405204460967) internal successors, (340), 268 states have internal predecessors, (340), 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) [2022-02-21 04:18:07,468 INFO L87 Difference]: Start difference. First operand 269 states and 340 transitions. Second operand has 269 states, 269 states have (on average 1.2639405204460967) internal successors, (340), 268 states have internal predecessors, (340), 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) [2022-02-21 04:18:07,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:07,473 INFO L93 Difference]: Finished difference Result 269 states and 340 transitions. [2022-02-21 04:18:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 340 transitions. [2022-02-21 04:18:07,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:07,475 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:07,476 INFO L74 IsIncluded]: Start isIncluded. First operand has 269 states, 269 states have (on average 1.2639405204460967) internal successors, (340), 268 states have internal predecessors, (340), 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) Second operand 269 states and 340 transitions. [2022-02-21 04:18:07,476 INFO L87 Difference]: Start difference. First operand has 269 states, 269 states have (on average 1.2639405204460967) internal successors, (340), 268 states have internal predecessors, (340), 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) Second operand 269 states and 340 transitions. [2022-02-21 04:18:07,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:07,482 INFO L93 Difference]: Finished difference Result 269 states and 340 transitions. [2022-02-21 04:18:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 340 transitions. [2022-02-21 04:18:07,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:07,483 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:07,483 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:07,483 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:07,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 269 states have (on average 1.2639405204460967) internal successors, (340), 268 states have internal predecessors, (340), 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) [2022-02-21 04:18:07,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 340 transitions. [2022-02-21 04:18:07,488 INFO L704 BuchiCegarLoop]: Abstraction has 269 states and 340 transitions. [2022-02-21 04:18:07,489 INFO L587 BuchiCegarLoop]: Abstraction has 269 states and 340 transitions. [2022-02-21 04:18:07,489 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:07,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 269 states and 340 transitions. [2022-02-21 04:18:07,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 186 [2022-02-21 04:18:07,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:07,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:07,493 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:07,493 INFO L843 BuchiCegarLoop]: Counterexample loop 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] [2022-02-21 04:18:07,494 INFO L791 eck$LassoCheckResult]: Stem: 1821#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1788#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~4#1, main_~tmp~7#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1714#L990 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1715#L983 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1755#L998 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 1672#L476 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1673#L450 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1711#L65-2 [2022-02-21 04:18:07,494 INFO L793 eck$LassoCheckResult]: Loop: 1711#L65-2 assume !false; 1663#L66 assume test_~splverifierCounter~0#1 < 4; 1664#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1797#L75 assume !(0 != test_~tmp~0#1); 1738#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1667#L85 assume !(0 != test_~tmp___0~0#1); 1669#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1869#L95 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1867#L359 assume { :end_inline_startSystem } true; 1816#L103-2 assume { :begin_inline_timeShift } true; 1656#L139 assume !(0 != ~pumpRunning~0); 1657#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1690#L223 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 1691#L197-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1809#L171-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 1783#L939-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 1747#L944-3 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1748#L325-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1766#L325-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1678#L331-3 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1679#L175-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1767#L163-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1616#L171-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1617#L197-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1634#L223-1 assume { :end_inline_processEnvironment } true; 1763#L146-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1625#L931 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 1626#L373 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1740#L373-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1745#L156 assume { :end_inline_timeShift } true; 1711#L65-2 [2022-02-21 04:18:07,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:07,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:07,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:07,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153931651] [2022-02-21 04:18:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:07,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,527 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,542 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:07,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:07,542 INFO L85 PathProgramCache]: Analyzing trace with hash 486048207, now seen corresponding path program 1 times [2022-02-21 04:18:07,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:07,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129007189] [2022-02-21 04:18:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:07,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,550 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,557 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:07,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:07,558 INFO L85 PathProgramCache]: Analyzing trace with hash 883239059, now seen corresponding path program 1 times [2022-02-21 04:18:07,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:07,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88182872] [2022-02-21 04:18:07,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:07,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,572 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,591 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:10,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:10 BoogieIcfgContainer [2022-02-21 04:18:10,180 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:10,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:10,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:10,180 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:10,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:05" (3/4) ... [2022-02-21 04:18:10,183 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:10,224 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:10,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:10,225 INFO L158 Benchmark]: Toolchain (without parser) took 5606.29ms. Allocated memory was 88.1MB in the beginning and 201.3MB in the end (delta: 113.2MB). Free memory was 52.7MB in the beginning and 133.8MB in the end (delta: -81.0MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:10,225 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 60.6MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:10,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.91ms. Allocated memory was 88.1MB in the beginning and 123.7MB in the end (delta: 35.7MB). Free memory was 52.6MB in the beginning and 87.2MB in the end (delta: -34.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:10,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.14ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 81.3MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:10,227 INFO L158 Benchmark]: Boogie Preprocessor took 32.52ms. Allocated memory is still 123.7MB. Free memory was 81.3MB in the beginning and 77.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:10,227 INFO L158 Benchmark]: RCFGBuilder took 647.36ms. Allocated memory is still 123.7MB. Free memory was 77.9MB in the beginning and 74.4MB in the end (delta: 3.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:10,228 INFO L158 Benchmark]: BuchiAutomizer took 4377.97ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 74.4MB in the beginning and 135.8MB in the end (delta: -61.5MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:10,228 INFO L158 Benchmark]: Witness Printer took 43.90ms. Allocated memory is still 201.3MB. Free memory was 135.8MB in the beginning and 133.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:10,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 60.6MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.91ms. Allocated memory was 88.1MB in the beginning and 123.7MB in the end (delta: 35.7MB). Free memory was 52.6MB in the beginning and 87.2MB in the end (delta: -34.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.14ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 81.3MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.52ms. Allocated memory is still 123.7MB. Free memory was 81.3MB in the beginning and 77.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 647.36ms. Allocated memory is still 123.7MB. Free memory was 77.9MB in the beginning and 74.4MB in the end (delta: 3.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 4377.97ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 74.4MB in the beginning and 135.8MB in the end (delta: -61.5MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. * Witness Printer took 43.90ms. Allocated memory is still 201.3MB. Free memory was 135.8MB in the beginning and 133.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 269 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 269 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1233 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1233 mSDsluCounter, 734 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 613 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7467b9f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@440517b3=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72488c43=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e7a5e1d=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@399e7483=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6af15d8e=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@124a430b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b1cad07=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68511ee4=29, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, tmp=1, \result=1, \result=1, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28aac833=0, tmp=1, tmp___2=29, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6358c75a=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L391] int cleanupTimeShifts = 4; [L659] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L856] int waterLevel = 1; [L857] int methaneLevelCritical = 0; [L467] int retValue_acc ; [L468] int tmp ; [L472] FCALL select_helpers() [L473] FCALL select_features() [L474] CALL, EXPR valid_product() [L994] int retValue_acc ; [L997] retValue_acc = 1 [L998] return (retValue_acc); [L474] RET, EXPR valid_product() [L474] tmp = valid_product() [L476] COND TRUE \read(tmp) [L478] FCALL setup() [L479] CALL runTest() [L458] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L97] CALL startSystem() [L358] systemActive = 1 [L97] RET startSystem() [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L220] int tmp ; [L223] COND FALSE !(\read(pumpRunning)) [L238] CALL processEnvironment__wrappee__lowWaterSensor() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L323] CALL, EXPR isHighWaterSensorDry() [L936] int retValue_acc ; [L939] COND TRUE waterLevel < 2 [L940] retValue_acc = 1 [L941] return (retValue_acc); [L323] RET, EXPR isHighWaterSensorDry() [L323] tmp = isHighWaterSensorDry() [L325] COND TRUE \read(tmp) [L326] tmp___0 = 0 [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L238] RET processEnvironment__wrappee__lowWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L371] CALL, EXPR getWaterLevel() [L927] int retValue_acc ; [L930] retValue_acc = waterLevel [L931] return (retValue_acc); [L371] RET, EXPR getWaterLevel() [L371] tmp = getWaterLevel() [L373] COND FALSE !(tmp == 0) [L154] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:10,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)