./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_spec3_product64.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 d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:58:45,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:58:45,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:58:45,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:58:45,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:58:45,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:58:45,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:58:45,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:58:45,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:58:45,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:58:45,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:58:45,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:58:45,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:58:45,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:58:45,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:58:45,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:58:45,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:58:45,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:58:45,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:58:45,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:58:45,315 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:58:45,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:58:45,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:58:45,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:58:45,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:58:45,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:58:45,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:58:45,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:58:45,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:58:45,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:58:45,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:58:45,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:58:45,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:58:45,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:58:45,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:58:45,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:58:45,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:58:45,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:58:45,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:58:45,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:58:45,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:58:45,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:58:45,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:58:45,349 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:58:45,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:58:45,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:58:45,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:58:45,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:58:45,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:58:45,352 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:58:45,352 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:58:45,352 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:58:45,353 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:58:45,353 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:58:45,353 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:58:45,353 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:58:45,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:58:45,354 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:58:45,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:58:45,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:58:45,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:58:45,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:58:45,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:58:45,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:58:45,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:58:45,355 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:58:45,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:58:45,356 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:58:45,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:58:45,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:58:45,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:58:45,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:58:45,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:58:45,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:58:45,359 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:58:45,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f [2022-07-14 15:58:45,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:58:45,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:58:45,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:58:45,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:58:45,582 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:58:45,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2022-07-14 15:58:45,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae24326c/307ccb77870c428caebc0987dcc84dbd/FLAG2a5b5e3ce [2022-07-14 15:58:46,075 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:58:46,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2022-07-14 15:58:46,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae24326c/307ccb77870c428caebc0987dcc84dbd/FLAG2a5b5e3ce [2022-07-14 15:58:46,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae24326c/307ccb77870c428caebc0987dcc84dbd [2022-07-14 15:58:46,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:58:46,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:58:46,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:58:46,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:58:46,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:58:46,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:46,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7759c18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46, skipping insertion in model container [2022-07-14 15:58:46,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:46,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:58:46,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:58:46,816 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_spec3_product64.cil.c[19022,19035] [2022-07-14 15:58:46,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:58:46,825 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:58:46,902 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_spec3_product64.cil.c[19022,19035] [2022-07-14 15:58:46,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:58:46,919 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:58:46,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46 WrapperNode [2022-07-14 15:58:46,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:58:46,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:58:46,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:58:46,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:58:46,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:46,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:47,010 INFO L137 Inliner]: procedures = 59, calls = 164, calls flagged for inlining = 61, calls inlined = 179, statements flattened = 1296 [2022-07-14 15:58:47,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:58:47,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:58:47,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:58:47,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:58:47,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:47,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:47,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:47,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:47,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:47,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:47,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:47,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:58:47,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:58:47,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:58:47,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:58:47,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (1/1) ... [2022-07-14 15:58:47,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:58:47,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:58:47,116 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) [2022-07-14 15:58:47,131 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 [2022-07-14 15:58:47,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:58:47,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:58:47,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:58:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:58:47,241 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:58:47,242 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:58:47,903 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:58:47,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:58:47,920 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:58:47,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:58:47 BoogieIcfgContainer [2022-07-14 15:58:47,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:58:47,924 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:58:47,924 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:58:47,927 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:58:47,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:58:47,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:58:46" (1/3) ... [2022-07-14 15:58:47,929 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@379e6224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:58:47, skipping insertion in model container [2022-07-14 15:58:47,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:58:47,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:46" (2/3) ... [2022-07-14 15:58:47,930 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@379e6224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:58:47, skipping insertion in model container [2022-07-14 15:58:47,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:58:47,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:58:47" (3/3) ... [2022-07-14 15:58:47,932 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2022-07-14 15:58:47,986 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:58:47,987 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:58:47,987 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:58:47,987 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:58:47,987 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:58:47,987 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:58:47,987 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:58:47,987 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:58:47,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 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) [2022-07-14 15:58:48,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2022-07-14 15:58:48,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:48,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:48,027 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:48,027 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:48,027 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:58:48,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 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) [2022-07-14 15:58:48,037 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2022-07-14 15:58:48,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:48,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:48,038 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:48,038 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:48,042 INFO L752 eck$LassoCheckResult]: Stem: 319#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 204#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 241#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 323#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 36#L83true main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 51#L988true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 274#L965true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 23#L377-2true [2022-07-14 15:58:48,043 INFO L754 eck$LassoCheckResult]: Loop: 23#L377-2true assume !false; 176#L378true assume test_~splverifierCounter~0#1 < 4; 118#L379true test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 223#L387true assume !(0 != test_~tmp~6#1); 296#L387-2true test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 142#L397true assume !(0 != test_~tmp___0~2#1); 179#L397-2true test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 20#L407true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 26#L360true assume { :end_inline_startSystem } true; 162#L415-2true assume { :begin_inline_timeShift } true; 31#L108true assume !(0 != ~pumpRunning~0); 290#L108-2true assume !(0 != ~systemActive~0); 75#L115-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 231#L480-5true __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; 281#L1020true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1; 27#L1026-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 284#L125true assume { :end_inline_timeShift } true; 23#L377-2true [2022-07-14 15:58:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-14 15:58:48,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:48,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679537717] [2022-07-14 15:58:48,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:48,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:48,149 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:48,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:48,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:48,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1296505389, now seen corresponding path program 1 times [2022-07-14 15:58:48,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:48,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328929992] [2022-07-14 15:58:48,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:48,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:58:48,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:48,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328929992] [2022-07-14 15:58:48,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328929992] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:48,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:48,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:58:48,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554856515] [2022-07-14 15:58:48,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:48,324 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:58:48,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:48,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:58:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:58:48,361 INFO L87 Difference]: Start difference. First operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-07-14 15:58:48,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:48,467 INFO L93 Difference]: Finished difference Result 643 states and 855 transitions. [2022-07-14 15:58:48,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:58:48,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 643 states and 855 transitions. [2022-07-14 15:58:48,485 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 424 [2022-07-14 15:58:48,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 643 states to 623 states and 834 transitions. [2022-07-14 15:58:48,500 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 623 [2022-07-14 15:58:48,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 623 [2022-07-14 15:58:48,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 623 states and 834 transitions. [2022-07-14 15:58:48,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:48,513 INFO L369 hiAutomatonCegarLoop]: Abstraction has 623 states and 834 transitions. [2022-07-14 15:58:48,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states and 834 transitions. [2022-07-14 15:58:48,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 620. [2022-07-14 15:58:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 620 states have (on average 1.3387096774193548) internal successors, (830), 619 states have internal predecessors, (830), 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) [2022-07-14 15:58:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 830 transitions. [2022-07-14 15:58:48,559 INFO L392 hiAutomatonCegarLoop]: Abstraction has 620 states and 830 transitions. [2022-07-14 15:58:48,559 INFO L374 stractBuchiCegarLoop]: Abstraction has 620 states and 830 transitions. [2022-07-14 15:58:48,559 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:58:48,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 620 states and 830 transitions. [2022-07-14 15:58:48,563 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 421 [2022-07-14 15:58:48,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:48,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:48,564 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:48,564 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-14 15:58:48,565 INFO L752 eck$LassoCheckResult]: Stem: 1340#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1262#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1263#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1292#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1048#L83 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 1049#L988 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1077#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1315#L377-2 [2022-07-14 15:58:48,565 INFO L754 eck$LassoCheckResult]: Loop: 1315#L377-2 assume !false; 1350#L378 assume test_~splverifierCounter~0#1 < 4; 1351#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1598#L387 assume !(0 != test_~tmp~6#1); 1596#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1594#L397 assume !(0 != test_~tmp___0~2#1); 1592#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1591#L407 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1590#L415 assume !(0 != test_~tmp___1~0#1); 1032#L415-2 assume { :begin_inline_timeShift } true; 1418#L108 assume !(0 != ~pumpRunning~0); 1324#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1325#L192 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1369#L480 isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 1366#L253 processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; 1358#L196 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1356#L243-1 assume { :end_inline_deactivatePump } true; 1355#L192-1 assume { :end_inline_processEnvironment } true; 1354#L115-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1353#L480-5 __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; 1317#L1020 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1; 1033#L1026-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1034#L125 assume { :end_inline_timeShift } true; 1315#L377-2 [2022-07-14 15:58:48,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:48,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-14 15:58:48,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:48,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384968573] [2022-07-14 15:58:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:48,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:48,584 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:48,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:48,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:48,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1618536586, now seen corresponding path program 1 times [2022-07-14 15:58:48,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:48,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254422003] [2022-07-14 15:58:48,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:48,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:58:48,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:48,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254422003] [2022-07-14 15:58:48,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254422003] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:48,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:48,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:58:48,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308382787] [2022-07-14 15:58:48,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:48,621 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:58:48,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:48,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:58:48,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:58:48,622 INFO L87 Difference]: Start difference. First operand 620 states and 830 transitions. cyclomatic complexity: 213 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) [2022-07-14 15:58:48,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:48,712 INFO L93 Difference]: Finished difference Result 648 states and 827 transitions. [2022-07-14 15:58:48,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:58:48,714 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 648 states and 827 transitions. [2022-07-14 15:58:48,719 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 451 [2022-07-14 15:58:48,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 648 states to 648 states and 827 transitions. [2022-07-14 15:58:48,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 648 [2022-07-14 15:58:48,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 648 [2022-07-14 15:58:48,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 648 states and 827 transitions. [2022-07-14 15:58:48,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:48,729 INFO L369 hiAutomatonCegarLoop]: Abstraction has 648 states and 827 transitions. [2022-07-14 15:58:48,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states and 827 transitions. [2022-07-14 15:58:48,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 648. [2022-07-14 15:58:48,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 648 states have (on average 1.2762345679012346) internal successors, (827), 647 states have internal predecessors, (827), 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) [2022-07-14 15:58:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 827 transitions. [2022-07-14 15:58:48,749 INFO L392 hiAutomatonCegarLoop]: Abstraction has 648 states and 827 transitions. [2022-07-14 15:58:48,749 INFO L374 stractBuchiCegarLoop]: Abstraction has 648 states and 827 transitions. [2022-07-14 15:58:48,749 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:58:48,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 648 states and 827 transitions. [2022-07-14 15:58:48,752 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 451 [2022-07-14 15:58:48,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:48,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:48,753 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:48,754 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-14 15:58:48,754 INFO L752 eck$LassoCheckResult]: Stem: 2548#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 2484#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2485#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2514#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2309#L83 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 2310#L988 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2332#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2288#L377-2 [2022-07-14 15:58:48,754 INFO L754 eck$LassoCheckResult]: Loop: 2288#L377-2 assume !false; 2289#L378 assume test_~splverifierCounter~0#1 < 4; 2411#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2412#L387 assume !(0 != test_~tmp~6#1); 2675#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2673#L397 assume !(0 != test_~tmp___0~2#1); 2465#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2466#L407 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 2416#L415 assume !(0 != test_~tmp___1~0#1); 2293#L415-2 assume { :begin_inline_timeShift } true; 2303#L108 assume !(0 != ~pumpRunning~0); 2304#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2535#L192 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2536#L166-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2656#L140-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2541#L520-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2518#L525-3 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 2519#L311-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2645#L311-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2641#L317-3 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 2636#L144-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2637#L132-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2694#L140-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2691#L166-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2690#L192-1 assume { :end_inline_processEnvironment } true; 2689#L115-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2505#L480-5 __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; 2506#L1020 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1; 2294#L1026-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2295#L125 assume { :end_inline_timeShift } true; 2288#L377-2 [2022-07-14 15:58:48,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:48,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-14 15:58:48,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:48,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770243209] [2022-07-14 15:58:48,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:48,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:48,795 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:48,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:48,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:48,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1404974294, now seen corresponding path program 1 times [2022-07-14 15:58:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:48,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630453196] [2022-07-14 15:58:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:48,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:48,834 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:48,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:48,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1007783442, now seen corresponding path program 1 times [2022-07-14 15:58:48,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:48,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605691235] [2022-07-14 15:58:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:48,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:58:48,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:48,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605691235] [2022-07-14 15:58:48,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605691235] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:48,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:48,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 15:58:48,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870057694] [2022-07-14 15:58:48,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:49,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:49,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 15:58:49,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 15:58:49,156 INFO L87 Difference]: Start difference. First operand 648 states and 827 transitions. cyclomatic complexity: 182 Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-07-14 15:58:49,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:49,360 INFO L93 Difference]: Finished difference Result 2224 states and 2826 transitions. [2022-07-14 15:58:49,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 15:58:49,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2224 states and 2826 transitions. [2022-07-14 15:58:49,376 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1631 [2022-07-14 15:58:49,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2224 states to 2224 states and 2826 transitions. [2022-07-14 15:58:49,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2224 [2022-07-14 15:58:49,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2224 [2022-07-14 15:58:49,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2224 states and 2826 transitions. [2022-07-14 15:58:49,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:49,395 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2224 states and 2826 transitions. [2022-07-14 15:58:49,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states and 2826 transitions. [2022-07-14 15:58:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 1289. [2022-07-14 15:58:49,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1289 states have (on average 1.265321955003879) internal successors, (1631), 1288 states have internal predecessors, (1631), 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) [2022-07-14 15:58:49,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1631 transitions. [2022-07-14 15:58:49,425 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1289 states and 1631 transitions. [2022-07-14 15:58:49,425 INFO L374 stractBuchiCegarLoop]: Abstraction has 1289 states and 1631 transitions. [2022-07-14 15:58:49,426 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-14 15:58:49,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1289 states and 1631 transitions. [2022-07-14 15:58:49,439 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 902 [2022-07-14 15:58:49,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:49,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:49,441 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:49,441 INFO L180 hiAutomatonCegarLoop]: 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, 1, 1] [2022-07-14 15:58:49,441 INFO L752 eck$LassoCheckResult]: Stem: 5483#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 5389#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 5390#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5431#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 5202#L83 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 5203#L988 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 5225#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5179#L377-2 [2022-07-14 15:58:49,442 INFO L754 eck$LassoCheckResult]: Loop: 5179#L377-2 assume !false; 5180#L378 assume test_~splverifierCounter~0#1 < 4; 5982#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 5409#L387 assume !(0 != test_~tmp~6#1); 5411#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 5934#L397 assume !(0 != test_~tmp___0~2#1); 5931#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 5929#L407 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 5184#L360 assume { :end_inline_startSystem } true; 5185#L415-2 assume { :begin_inline_timeShift } true; 5193#L108 assume !(0 != ~pumpRunning~0); 5194#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 5464#L192 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 5461#L166-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 5400#L140-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 5401#L520-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 5471#L525-3 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 5466#L311-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 5334#L311-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 5335#L317-3 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 5260#L144-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5262#L132-6 assume { :end_inline_processEnvironment__wrappee__base } true; 5882#L140-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5875#L166-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 5869#L192-1 assume { :end_inline_processEnvironment } true; 5863#L115-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 5418#L480-5 __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; 5419#L1020 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 5368#L512 __utac_acc__Specification3_spec__1_#t~ret54#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret54#1;havoc __utac_acc__Specification3_spec__1_#t~ret54#1; 5369#L1026 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 5988#L1026-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5987#L125 assume { :end_inline_timeShift } true; 5179#L377-2 [2022-07-14 15:58:49,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:49,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-07-14 15:58:49,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:49,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621230366] [2022-07-14 15:58:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:49,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:49,460 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:49,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:49,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:49,490 INFO L85 PathProgramCache]: Analyzing trace with hash -634282005, now seen corresponding path program 1 times [2022-07-14 15:58:49,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:49,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951878577] [2022-07-14 15:58:49,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:49,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:49,502 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:49,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:49,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:49,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1185962577, now seen corresponding path program 1 times [2022-07-14 15:58:49,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:49,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218645218] [2022-07-14 15:58:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:49,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:49,529 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:49,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:52,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:58:52 BoogieIcfgContainer [2022-07-14 15:58:52,382 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:58:52,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:58:52,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:58:52,383 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:58:52,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:58:47" (3/4) ... [2022-07-14 15:58:52,386 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:58:52,447 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:58:52,448 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:58:52,449 INFO L158 Benchmark]: Toolchain (without parser) took 5992.10ms. Allocated memory was 107.0MB in the beginning and 163.6MB in the end (delta: 56.6MB). Free memory was 76.3MB in the beginning and 85.9MB in the end (delta: -9.6MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2022-07-14 15:58:52,449 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:58:52,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.97ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 74.1MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 15:58:52,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.12ms. Allocated memory is still 107.0MB. Free memory was 74.1MB in the beginning and 68.9MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 15:58:52,451 INFO L158 Benchmark]: Boogie Preprocessor took 65.40ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 65.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:58:52,452 INFO L158 Benchmark]: RCFGBuilder took 846.22ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 65.1MB in the beginning and 84.0MB in the end (delta: -18.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-07-14 15:58:52,452 INFO L158 Benchmark]: BuchiAutomizer took 4457.91ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 84.0MB in the beginning and 89.0MB in the end (delta: -5.0MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2022-07-14 15:58:52,452 INFO L158 Benchmark]: Witness Printer took 65.49ms. Allocated memory is still 163.6MB. Free memory was 89.0MB in the beginning and 85.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:58:52,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.97ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 74.1MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.12ms. Allocated memory is still 107.0MB. Free memory was 74.1MB in the beginning and 68.9MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.40ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 65.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 846.22ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 65.1MB in the beginning and 84.0MB in the end (delta: -18.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 4457.91ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 84.0MB in the beginning and 89.0MB in the end (delta: -5.0MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. * Witness Printer took 65.49ms. Allocated memory is still 163.6MB. Free memory was 89.0MB in the beginning and 85.9MB in the end (delta: 3.1MB). 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 1289 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 938 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1972 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1972 mSDsluCounter, 3376 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2119 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 218 IncrementalHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 1257 mSDtfsCounter, 218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 377]: 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@6c1d048f=0, tmp=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, \result=0, retValue_acc=0, retValue_acc=1, \result=1, \result=1, retValue_acc=1, tmp=1, tmp=1, tmp___0=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73c33497=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78931c12=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b5cb0e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cfe648=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@aac0646=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@578fea35=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c3ccd7f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b1503e3=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d3af370=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53aa40fa=0, \result=0, tmp=0, head=0, \result=1, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55a751d6=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L437] int waterLevel = 1; [L438] int methaneLevelCritical = 0; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int cleanupTimeShifts = 4; [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___2) [L409] CALL startSystem() [L359] systemActive = 1 [L409] RET startSystem() [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L517] int retValue_acc ; [L520] COND TRUE waterLevel < 2 [L521] retValue_acc = 1 [L522] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification3_spec__1() [L1012] int tmp ; [L1013] int tmp___0 ; [L1014] int tmp___1 ; [L1018] CALL, EXPR isMethaneLevelCritical() [L476] int retValue_acc ; [L479] retValue_acc = methaneLevelCritical [L480] return (retValue_acc); [L1018] RET, EXPR isMethaneLevelCritical() [L1018] tmp = isMethaneLevelCritical() [L1020] COND FALSE !(\read(tmp)) [L1024] CALL, EXPR getWaterLevel() [L508] int retValue_acc ; [L511] retValue_acc = waterLevel [L512] return (retValue_acc); [L1024] RET, EXPR getWaterLevel() [L1024] tmp___0 = getWaterLevel() [L1026] COND FALSE !(tmp___0 == 2) [L123] RET __utac_acc__Specification3_spec__1() [L424] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:58:52,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)