./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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_spec5_product34.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 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:27:54,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:27:54,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:27:54,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:27:54,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:27:54,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:27:54,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:27:54,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:27:54,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:27:54,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:27:54,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:27:54,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:27:54,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:27:54,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:27:54,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:27:54,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:27:54,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:27:54,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:27:54,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:27:54,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:27:54,357 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:27:54,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:27:54,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:27:54,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:27:54,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:27:54,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:27:54,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:27:54,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:27:54,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:27:54,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:27:54,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:27:54,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:27:54,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:27:54,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:27:54,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:27:54,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:27:54,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:27:54,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:27:54,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:27:54,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:27:54,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:27:54,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:27:54,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:27:54,391 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:27:54,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:27:54,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:27:54,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:27:54,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:27:54,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:27:54,394 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:27:54,394 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:27:54,394 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:27:54,395 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:27:54,395 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:27:54,395 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:27:54,395 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:27:54,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:27:54,395 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:27:54,396 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:27:54,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:27:54,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:27:54,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:27:54,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:27:54,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:27:54,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:27:54,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:27:54,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:27:54,398 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:27:54,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:27:54,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:27:54,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:27:54,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:27:54,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:27:54,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:27:54,399 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:27:54,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef [2022-07-23 15:27:54,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:27:54,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:27:54,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:27:54,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:27:54,598 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:27:54,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2022-07-23 15:27:54,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd55c313e/ae1e146e02954dd293c5a8ecb682c030/FLAG800c1808d [2022-07-23 15:27:55,026 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:27:55,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2022-07-23 15:27:55,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd55c313e/ae1e146e02954dd293c5a8ecb682c030/FLAG800c1808d [2022-07-23 15:27:55,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd55c313e/ae1e146e02954dd293c5a8ecb682c030 [2022-07-23 15:27:55,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:27:55,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:27:55,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:27:55,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:27:55,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:27:55,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f185fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55, skipping insertion in model container [2022-07-23 15:27:55,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:27:55,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:27:55,600 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_spec5_product34.cil.c[2141,2154] [2022-07-23 15:27:55,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:27:55,677 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:27:55,697 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_spec5_product34.cil.c[2141,2154] [2022-07-23 15:27:55,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:27:55,741 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:27:55,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55 WrapperNode [2022-07-23 15:27:55,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:27:55,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:27:55,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:27:55,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:27:55,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,775 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 50, calls inlined = 55, statements flattened = 432 [2022-07-23 15:27:55,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:27:55,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:27:55,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:27:55,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:27:55,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:27:55,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:27:55,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:27:55,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:27:55,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (1/1) ... [2022-07-23 15:27:55,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:27:55,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:27:55,865 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) [2022-07-23 15:27:55,870 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 [2022-07-23 15:27:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:27:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:27:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:27:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:27:55,946 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:27:55,947 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:27:56,231 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:27:56,236 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:27:56,236 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:27:56,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:56 BoogieIcfgContainer [2022-07-23 15:27:56,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:27:56,239 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:27:56,239 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:27:56,241 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:27:56,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:27:56,242 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:27:55" (1/3) ... [2022-07-23 15:27:56,242 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cfbe5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:27:56, skipping insertion in model container [2022-07-23 15:27:56,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:27:56,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:55" (2/3) ... [2022-07-23 15:27:56,243 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cfbe5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:27:56, skipping insertion in model container [2022-07-23 15:27:56,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:27:56,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:56" (3/3) ... [2022-07-23 15:27:56,244 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2022-07-23 15:27:56,280 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:27:56,280 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:27:56,280 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:27:56,280 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:27:56,280 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:27:56,280 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:27:56,280 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:27:56,280 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:27:56,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.373913043478261) internal successors, (158), 115 states have internal predecessors, (158), 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) [2022-07-23 15:27:56,304 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2022-07-23 15:27:56,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:56,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:56,310 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:56,310 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] [2022-07-23 15:27:56,310 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:27:56,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.373913043478261) internal successors, (158), 115 states have internal predecessors, (158), 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) [2022-07-23 15:27:56,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2022-07-23 15:27:56,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:56,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:56,315 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:56,315 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] [2022-07-23 15:27:56,323 INFO L752 eck$LassoCheckResult]: Stem: 93#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 29#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 44#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 106#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; 18#L83true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 57#L935true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 41#L911true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 102#L809true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 24#L577-2true [2022-07-23 15:27:56,324 INFO L754 eck$LassoCheckResult]: Loop: 24#L577-2true assume !false; 31#L578true assume test_~splverifierCounter~0#1 < 4; 9#L579true test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 111#L587true assume !(0 != test_~tmp~3#1); 45#L587-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 88#L597true assume !(0 != test_~tmp___0~0#1); 43#L597-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 23#L607true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 107#L799true assume { :end_inline_startSystem } true; 11#L615-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 108#L735true __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 35#L819true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 74#L650true assume !(0 != ~pumpRunning~0); 55#L650-2true assume !(0 != ~systemActive~0); 71#L657-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 17#L545true __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 78#L830true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 109#L830-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 27#L667true assume { :end_inline_timeShift } true; 24#L577-2true [2022-07-23 15:27:56,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-23 15:27:56,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:56,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570396143] [2022-07-23 15:27:56,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:56,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:56,408 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:56,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:56,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:56,458 INFO L85 PathProgramCache]: Analyzing trace with hash -650641333, now seen corresponding path program 1 times [2022-07-23 15:27:56,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:56,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255404816] [2022-07-23 15:27:56,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:56,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:27:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:27:56,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:27:56,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255404816] [2022-07-23 15:27:56,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255404816] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:27:56,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:27:56,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:27:56,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197007619] [2022-07-23 15:27:56,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:27:56,531 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:27:56,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:27:56,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:27:56,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:27:56,562 INFO L87 Difference]: Start difference. First operand has 116 states, 115 states have (on average 1.373913043478261) internal successors, (158), 115 states have internal predecessors, (158), 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 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-07-23 15:27:56,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:27:56,597 INFO L93 Difference]: Finished difference Result 113 states and 145 transitions. [2022-07-23 15:27:56,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:27:56,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 145 transitions. [2022-07-23 15:27:56,603 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-07-23 15:27:56,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 103 states and 134 transitions. [2022-07-23 15:27:56,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2022-07-23 15:27:56,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 103 [2022-07-23 15:27:56,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 134 transitions. [2022-07-23 15:27:56,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:27:56,608 INFO L369 hiAutomatonCegarLoop]: Abstraction has 103 states and 134 transitions. [2022-07-23 15:27:56,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 134 transitions. [2022-07-23 15:27:56,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-07-23 15:27:56,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 102 states have internal predecessors, (134), 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) [2022-07-23 15:27:56,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 134 transitions. [2022-07-23 15:27:56,627 INFO L392 hiAutomatonCegarLoop]: Abstraction has 103 states and 134 transitions. [2022-07-23 15:27:56,627 INFO L374 stractBuchiCegarLoop]: Abstraction has 103 states and 134 transitions. [2022-07-23 15:27:56,627 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:27:56,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 103 states and 134 transitions. [2022-07-23 15:27:56,629 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-07-23 15:27:56,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:56,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:56,630 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:56,630 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] [2022-07-23 15:27:56,630 INFO L752 eck$LassoCheckResult]: Stem: 337#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 283#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 284#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 302#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; 266#L83 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 267#L935 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 297#L911 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 298#L809 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 276#L577-2 [2022-07-23 15:27:56,630 INFO L754 eck$LassoCheckResult]: Loop: 276#L577-2 assume !false; 277#L578 assume test_~splverifierCounter~0#1 < 4; 249#L579 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 250#L587 assume !(0 != test_~tmp~3#1); 282#L587-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 303#L597 assume !(0 != test_~tmp___0~0#1); 301#L597-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 274#L607 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 275#L799 assume { :end_inline_startSystem } true; 244#L615-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 253#L735 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 290#L819 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 291#L650 assume !(0 != ~pumpRunning~0); 292#L650-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 314#L682 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 315#L674-1 assume { :end_inline_processEnvironment__wrappee__base } true; 252#L682-1 assume { :end_inline_processEnvironment } true; 270#L657-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 264#L545 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 265#L830 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 330#L830-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 280#L667 assume { :end_inline_timeShift } true; 276#L577-2 [2022-07-23 15:27:56,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:56,631 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-23 15:27:56,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:56,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818035617] [2022-07-23 15:27:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:56,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:56,652 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:56,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:56,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:56,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1135448784, now seen corresponding path program 1 times [2022-07-23 15:27:56,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:56,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130951846] [2022-07-23 15:27:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:56,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:27:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:27:56,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:27:56,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130951846] [2022-07-23 15:27:56,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130951846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:27:56,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:27:56,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:27:56,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300985116] [2022-07-23 15:27:56,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:27:56,681 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:27:56,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:27:56,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:27:56,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:27:56,682 INFO L87 Difference]: Start difference. First operand 103 states and 134 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-07-23 15:27:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:27:56,731 INFO L93 Difference]: Finished difference Result 165 states and 209 transitions. [2022-07-23 15:27:56,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:27:56,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 209 transitions. [2022-07-23 15:27:56,734 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-07-23 15:27:56,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 165 states and 209 transitions. [2022-07-23 15:27:56,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 165 [2022-07-23 15:27:56,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 165 [2022-07-23 15:27:56,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 209 transitions. [2022-07-23 15:27:56,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:27:56,737 INFO L369 hiAutomatonCegarLoop]: Abstraction has 165 states and 209 transitions. [2022-07-23 15:27:56,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 209 transitions. [2022-07-23 15:27:56,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-07-23 15:27:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 164 states have internal predecessors, (209), 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) [2022-07-23 15:27:56,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 209 transitions. [2022-07-23 15:27:56,744 INFO L392 hiAutomatonCegarLoop]: Abstraction has 165 states and 209 transitions. [2022-07-23 15:27:56,744 INFO L374 stractBuchiCegarLoop]: Abstraction has 165 states and 209 transitions. [2022-07-23 15:27:56,744 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:27:56,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 209 transitions. [2022-07-23 15:27:56,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-07-23 15:27:56,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:56,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:56,746 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:56,746 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] [2022-07-23 15:27:56,746 INFO L752 eck$LassoCheckResult]: Stem: 626#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 559#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 560#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 581#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; 541#L83 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 542#L935 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 576#L911 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 577#L809 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 552#L577-2 [2022-07-23 15:27:56,747 INFO L754 eck$LassoCheckResult]: Loop: 552#L577-2 assume !false; 553#L578 assume test_~splverifierCounter~0#1 < 4; 563#L579 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 662#L587 assume !(0 != test_~tmp~3#1); 660#L587-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 619#L597 assume !(0 != test_~tmp___0~0#1); 580#L597-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 550#L607 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 517#L615 assume 0 != test_~tmp___1~0#1; 518#L615-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 649#L735 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 648#L819 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 611#L650 assume !(0 != ~pumpRunning~0); 593#L650-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 594#L682 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 595#L553 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 601#L558 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 625#L784 assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1; 583#L784-2 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 584#L790 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 587#L686 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 535#L674 assume { :end_inline_processEnvironment__wrappee__base } true; 536#L682-1 assume { :end_inline_processEnvironment } true; 546#L657-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 539#L545 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 540#L830 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 614#L830-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 666#L667 assume { :end_inline_timeShift } true; 552#L577-2 [2022-07-23 15:27:56,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:56,747 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-07-23 15:27:56,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:56,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910322130] [2022-07-23 15:27:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:56,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:56,768 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:56,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:56,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:56,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1821184327, now seen corresponding path program 1 times [2022-07-23 15:27:56,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:56,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437365546] [2022-07-23 15:27:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:56,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:27:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:27:56,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:27:56,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437365546] [2022-07-23 15:27:56,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437365546] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:27:56,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:27:56,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:27:56,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521706299] [2022-07-23 15:27:56,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:27:56,833 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:27:56,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:27:56,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 15:27:56,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 15:27:56,834 INFO L87 Difference]: Start difference. First operand 165 states and 209 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-07-23 15:27:56,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:27:56,899 INFO L93 Difference]: Finished difference Result 390 states and 494 transitions. [2022-07-23 15:27:56,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 15:27:56,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 390 states and 494 transitions. [2022-07-23 15:27:56,902 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 283 [2022-07-23 15:27:56,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 390 states to 390 states and 494 transitions. [2022-07-23 15:27:56,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 390 [2022-07-23 15:27:56,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 390 [2022-07-23 15:27:56,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 390 states and 494 transitions. [2022-07-23 15:27:56,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:27:56,907 INFO L369 hiAutomatonCegarLoop]: Abstraction has 390 states and 494 transitions. [2022-07-23 15:27:56,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states and 494 transitions. [2022-07-23 15:27:56,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 174. [2022-07-23 15:27:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.2528735632183907) internal successors, (218), 173 states have internal predecessors, (218), 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) [2022-07-23 15:27:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 218 transitions. [2022-07-23 15:27:56,923 INFO L392 hiAutomatonCegarLoop]: Abstraction has 174 states and 218 transitions. [2022-07-23 15:27:56,923 INFO L374 stractBuchiCegarLoop]: Abstraction has 174 states and 218 transitions. [2022-07-23 15:27:56,923 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 15:27:56,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 218 transitions. [2022-07-23 15:27:56,924 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2022-07-23 15:27:56,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:56,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:56,926 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:56,927 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] [2022-07-23 15:27:56,927 INFO L752 eck$LassoCheckResult]: Stem: 1190#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1125#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1146#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; 1109#L83 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 1110#L935 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1141#L911 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1142#L809 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1196#L577-2 [2022-07-23 15:27:56,927 INFO L754 eck$LassoCheckResult]: Loop: 1196#L577-2 assume !false; 1230#L578 assume test_~splverifierCounter~0#1 < 4; 1229#L579 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1227#L587 assume !(0 != test_~tmp~3#1); 1225#L587-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1223#L597 assume !(0 != test_~tmp___0~0#1); 1221#L597-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1220#L607 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1218#L799 assume { :end_inline_startSystem } true; 1217#L615-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 1216#L735 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 1132#L819 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1133#L650 assume !(0 != ~pumpRunning~0); 1158#L650-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1159#L682 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 1161#L553 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 1167#L558 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1188#L784 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1148#L784-2 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 1149#L790 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 1202#L686 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1102#L674 assume { :end_inline_processEnvironment__wrappee__base } true; 1103#L682-1 assume { :end_inline_processEnvironment } true; 1238#L657-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 1237#L545 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 1233#L830 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 1232#L830-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1231#L667 assume { :end_inline_timeShift } true; 1196#L577-2 [2022-07-23 15:27:56,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:56,929 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-07-23 15:27:56,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:56,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712944745] [2022-07-23 15:27:56,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:56,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:56,938 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:56,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:56,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:56,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1323531432, now seen corresponding path program 1 times [2022-07-23 15:27:56,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:56,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564118378] [2022-07-23 15:27:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:56,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:27:56,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:27:56,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:27:56,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564118378] [2022-07-23 15:27:56,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564118378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:27:56,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:27:56,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:27:56,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944900279] [2022-07-23 15:27:56,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:27:56,983 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:27:56,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:27:56,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 15:27:56,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 15:27:56,984 INFO L87 Difference]: Start difference. First operand 174 states and 218 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-07-23 15:27:57,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:27:57,089 INFO L93 Difference]: Finished difference Result 702 states and 869 transitions. [2022-07-23 15:27:57,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 15:27:57,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 702 states and 869 transitions. [2022-07-23 15:27:57,094 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 489 [2022-07-23 15:27:57,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 702 states to 702 states and 869 transitions. [2022-07-23 15:27:57,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 702 [2022-07-23 15:27:57,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 702 [2022-07-23 15:27:57,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 702 states and 869 transitions. [2022-07-23 15:27:57,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:27:57,107 INFO L369 hiAutomatonCegarLoop]: Abstraction has 702 states and 869 transitions. [2022-07-23 15:27:57,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states and 869 transitions. [2022-07-23 15:27:57,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 337. [2022-07-23 15:27:57,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 337 states have (on average 1.2344213649851632) internal successors, (416), 336 states have internal predecessors, (416), 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) [2022-07-23 15:27:57,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 416 transitions. [2022-07-23 15:27:57,127 INFO L392 hiAutomatonCegarLoop]: Abstraction has 337 states and 416 transitions. [2022-07-23 15:27:57,128 INFO L374 stractBuchiCegarLoop]: Abstraction has 337 states and 416 transitions. [2022-07-23 15:27:57,128 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-23 15:27:57,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 337 states and 416 transitions. [2022-07-23 15:27:57,130 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 242 [2022-07-23 15:27:57,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:57,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:57,132 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:57,132 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] [2022-07-23 15:27:57,133 INFO L752 eck$LassoCheckResult]: Stem: 2100#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2022#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2023#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2048#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; 2005#L83 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 2006#L935 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 2042#L911 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2043#L809 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2015#L577-2 [2022-07-23 15:27:57,133 INFO L754 eck$LassoCheckResult]: Loop: 2015#L577-2 assume !false; 2016#L578 assume test_~splverifierCounter~0#1 < 4; 2027#L579 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 2283#L587 assume !(0 != test_~tmp~3#1); 2281#L587-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 2279#L597 assume !(0 != test_~tmp___0~0#1); 2277#L597-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 2276#L607 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2274#L799 assume { :end_inline_startSystem } true; 2252#L615-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 2251#L735 __utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1; 2250#L819 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2083#L650 assume !(0 != ~pumpRunning~0); 2084#L650-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 2061#L682 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 2062#L553 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 2069#L558 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 2098#L784 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2099#L784-2 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 2188#L790 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 2184#L686 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1998#L674 assume { :end_inline_processEnvironment__wrappee__base } true; 1999#L682-1 assume { :end_inline_processEnvironment } true; 2010#L657-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 2078#L545 __utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1; 2087#L830 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 2052#L735-1 __utac_acc__Specification5_spec__3_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 2053#L834 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2272#L830-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2271#L667 assume { :end_inline_timeShift } true; 2015#L577-2 [2022-07-23 15:27:57,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:57,133 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-07-23 15:27:57,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:57,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430883446] [2022-07-23 15:27:57,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:57,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:57,155 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:57,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:57,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:57,163 INFO L85 PathProgramCache]: Analyzing trace with hash -622484973, now seen corresponding path program 1 times [2022-07-23 15:27:57,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:57,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689497715] [2022-07-23 15:27:57,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:57,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:57,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:57,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:57,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1706624828, now seen corresponding path program 1 times [2022-07-23 15:27:57,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:57,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961051766] [2022-07-23 15:27:57,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:57,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:57,203 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:57,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:59,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:27:59 BoogieIcfgContainer [2022-07-23 15:27:59,628 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:27:59,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:27:59,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:27:59,628 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:27:59,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:56" (3/4) ... [2022-07-23 15:27:59,631 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:27:59,675 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:27:59,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:27:59,676 INFO L158 Benchmark]: Toolchain (without parser) took 4242.50ms. Allocated memory was 94.4MB in the beginning and 151.0MB in the end (delta: 56.6MB). Free memory was 60.7MB in the beginning and 120.8MB in the end (delta: -60.1MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:59,677 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:27:59,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.27ms. Allocated memory is still 94.4MB. Free memory was 60.5MB in the beginning and 61.5MB in the end (delta: -992.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-23 15:27:59,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.00ms. Allocated memory is still 94.4MB. Free memory was 61.5MB in the beginning and 58.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 15:27:59,678 INFO L158 Benchmark]: Boogie Preprocessor took 43.17ms. Allocated memory is still 94.4MB. Free memory was 58.5MB in the beginning and 56.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:59,678 INFO L158 Benchmark]: RCFGBuilder took 418.81ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 56.7MB in the beginning and 94.3MB in the end (delta: -37.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-07-23 15:27:59,678 INFO L158 Benchmark]: BuchiAutomizer took 3388.94ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 94.3MB in the beginning and 47.5MB in the end (delta: 46.8MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. [2022-07-23 15:27:59,678 INFO L158 Benchmark]: Witness Printer took 47.83ms. Allocated memory is still 151.0MB. Free memory was 47.5MB in the beginning and 120.8MB in the end (delta: -73.3MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-07-23 15:27:59,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.27ms. Allocated memory is still 94.4MB. Free memory was 60.5MB in the beginning and 61.5MB in the end (delta: -992.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.00ms. Allocated memory is still 94.4MB. Free memory was 61.5MB in the beginning and 58.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.17ms. Allocated memory is still 94.4MB. Free memory was 58.5MB in the beginning and 56.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 418.81ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 56.7MB in the beginning and 94.3MB in the end (delta: -37.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3388.94ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 94.3MB in the beginning and 47.5MB in the end (delta: 46.8MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. * Witness Printer took 47.83ms. Allocated memory is still 151.0MB. Free memory was 47.5MB in the beginning and 120.8MB in the end (delta: -73.3MB). Peak memory consumption was 3.4MB. 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 337 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 581 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, 1291 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1291 mSDsluCounter, 1936 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1198 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 738 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 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: 577]: 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, retValue_acc=0, NULL=0, tmp___0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@352fdf5=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4740df8f=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dda5cb8=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b912fcf=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, retValue_acc=0, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ccbb4ed=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@783c81db=29, retValue_acc=1, tmp=1, tmp=1, tmp=1, tmp___2=29, \result=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52cb0414=0, switchedOnBeforeTS=0, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e785239=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c4c8797=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57da3446=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 577]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L470] int waterLevel = 1; [L471] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L639] int systemActive = 1; [L803] int switchedOnBeforeTS ; [L852] int cleanupTimeShifts = 4; [L926] int retValue_acc ; [L927] int tmp ; [L931] FCALL select_helpers() [L932] FCALL select_features() [L933] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L933] RET, EXPR valid_product() [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L937] FCALL setup() [L938] CALL runTest() [L919] CALL __utac_acc__Specification5_spec__1() [L808] switchedOnBeforeTS = 0 [L919] RET __utac_acc__Specification5_spec__1() [L920] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L609] CALL startSystem() [L798] systemActive = 1 [L609] RET startSystem() [L622] CALL timeShift() [L648] CALL __utac_acc__Specification5_spec__2() [L817] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L817] RET, EXPR isPumpRunning() [L817] switchedOnBeforeTS = isPumpRunning() [L648] RET __utac_acc__Specification5_spec__2() [L650] COND FALSE !(\read(pumpRunning)) [L657] COND TRUE \read(systemActive) [L659] CALL processEnvironment() [L679] int tmp ; [L682] COND TRUE ! pumpRunning [L684] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L550] int retValue_acc ; [L553] COND TRUE waterLevel < 2 [L554] retValue_acc = 1 [L555] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L684] RET, EXPR isHighWaterLevel() [L684] tmp = isHighWaterLevel() [L686] COND FALSE !(\read(tmp)) [L692] FCALL processEnvironment__wrappee__base() [L659] RET processEnvironment() [L665] CALL __utac_acc__Specification5_spec__3() [L823] int tmp ; [L824] int tmp___0 ; [L828] CALL, EXPR getWaterLevel() [L541] int retValue_acc ; [L544] retValue_acc = waterLevel [L545] return (retValue_acc); [L828] RET, EXPR getWaterLevel() [L828] tmp = getWaterLevel() [L830] COND TRUE tmp != 2 [L832] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L832] RET, EXPR isPumpRunning() [L832] tmp___0 = isPumpRunning() [L834] COND FALSE !(\read(tmp___0)) [L665] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:27:59,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)