./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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_product59.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 bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:13:00,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:13:00,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:13:00,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:13:00,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:13:00,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:13:00,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:13:00,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:13:00,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:13:00,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:13:00,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:13:00,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:13:00,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:13:00,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:13:00,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:13:00,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:13:00,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:13:00,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:13:00,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:13:00,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:13:00,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:13:00,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:13:00,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:13:00,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:13:00,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:13:00,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:13:00,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:13:00,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:13:00,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:13:00,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:13:00,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:13:00,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:13:00,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:13:00,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:13:00,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:13:00,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:13:00,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:13:00,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:13:00,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:13:00,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:13:00,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:13:00,257 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:13:00,287 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:13:00,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:13:00,288 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:13:00,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:13:00,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:13:00,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:13:00,289 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:13:00,289 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:13:00,290 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:13:00,290 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:13:00,290 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:13:00,291 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:13:00,291 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:13:00,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:13:00,291 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:13:00,291 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:13:00,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:13:00,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:13:00,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:13:00,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:13:00,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:13:00,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:13:00,292 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:13:00,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:13:00,292 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:13:00,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:13:00,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:13:00,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:13:00,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:13:00,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:13:00,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:13:00,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:13:00,294 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:13:00,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c [2021-12-19 19:13:00,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:13:00,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:13:00,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:13:00,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:13:00,523 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:13:00,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2021-12-19 19:13:00,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ed99617/2a3b91d6322f4d6bbc19bd86d2bc662f/FLAG2279debf6 [2021-12-19 19:13:00,964 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:13:00,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2021-12-19 19:13:00,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ed99617/2a3b91d6322f4d6bbc19bd86d2bc662f/FLAG2279debf6 [2021-12-19 19:13:01,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ed99617/2a3b91d6322f4d6bbc19bd86d2bc662f [2021-12-19 19:13:01,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:13:01,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:13:01,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:13:01,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:13:01,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:13:01,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65daf733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01, skipping insertion in model container [2021-12-19 19:13:01,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:13:01,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:13:01,724 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_product59.cil.c[17002,17015] [2021-12-19 19:13:01,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:13:01,748 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:13:01,813 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_product59.cil.c[17002,17015] [2021-12-19 19:13:01,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:13:01,842 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:13:01,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01 WrapperNode [2021-12-19 19:13:01,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:13:01,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:13:01,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:13:01,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:13:01,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,892 INFO L137 Inliner]: procedures = 59, calls = 161, calls flagged for inlining = 58, calls inlined = 104, statements flattened = 772 [2021-12-19 19:13:01,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:13:01,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:13:01,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:13:01,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:13:01,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:13:01,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:13:01,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:13:01,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:13:01,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (1/1) ... [2021-12-19 19:13:01,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:13:01,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:13:01,986 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) [2021-12-19 19:13:01,988 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 [2021-12-19 19:13:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:13:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:13:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:13:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:13:02,089 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:13:02,090 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:13:02,418 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:13:02,428 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:13:02,430 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 19:13:02,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:13:02 BoogieIcfgContainer [2021-12-19 19:13:02,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:13:02,433 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:13:02,433 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:13:02,435 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:13:02,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:13:02,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:13:01" (1/3) ... [2021-12-19 19:13:02,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@579622a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:13:02, skipping insertion in model container [2021-12-19 19:13:02,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:13:02,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:01" (2/3) ... [2021-12-19 19:13:02,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@579622a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:13:02, skipping insertion in model container [2021-12-19 19:13:02,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:13:02,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:13:02" (3/3) ... [2021-12-19 19:13:02,439 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2021-12-19 19:13:02,479 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:13:02,479 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:13:02,479 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:13:02,479 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:13:02,479 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:13:02,479 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:13:02,480 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:13:02,480 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:13:02,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 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) [2021-12-19 19:13:02,524 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2021-12-19 19:13:02,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:02,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:02,532 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:02,532 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:02,533 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:13:02,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 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) [2021-12-19 19:13:02,546 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2021-12-19 19:13:02,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:02,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:02,551 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:02,551 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:02,560 INFO L791 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 134#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 117#L1016true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 113#L1009true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 118#L1024true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 164#L980true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 200#L953true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 153#L851true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 181#L174-2true [2021-12-19 19:13:02,561 INFO L793 eck$LassoCheckResult]: Loop: 181#L174-2true assume !false; 109#L175true assume test_~splverifierCounter~0#1 < 4; 135#L176true test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 63#L184true assume !(0 != test_~tmp~0#1); 151#L184-2true test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 166#L194true assume !(0 != test_~tmp___0~0#1); 196#L194-2true test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 93#L204true assume 0 != test_~tmp___2~0#1; 192#L210-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 115#L376true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 129#L861true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 91#L247true assume !(0 != ~pumpRunning~0); 149#L247-2true assume !(0 != ~systemActive~0); 9#L254-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 178#L133true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 154#L872true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 54#L872-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 141#L264true assume { :end_inline_timeShift } true; 181#L174-2true [2021-12-19 19:13:02,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:02,574 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-19 19:13:02,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:02,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402461656] [2021-12-19 19:13:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:02,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:02,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:02,746 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:02,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:02,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1566070476, now seen corresponding path program 1 times [2021-12-19 19:13:02,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:02,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998497372] [2021-12-19 19:13:02,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:02,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:02,757 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:02,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:02,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash 226718069, now seen corresponding path program 1 times [2021-12-19 19:13:02,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:02,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390881648] [2021-12-19 19:13:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:02,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:13:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:13:02,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:13:02,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390881648] [2021-12-19 19:13:02,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390881648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:13:02,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:13:02,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:13:02,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627945628] [2021-12-19 19:13:02,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:13:03,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:13:03,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 19:13:03,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-19 19:13:03,060 INFO L87 Difference]: Start difference. First operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-12-19 19:13:03,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:13:03,157 INFO L93 Difference]: Finished difference Result 459 states and 600 transitions. [2021-12-19 19:13:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 19:13:03,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 459 states and 600 transitions. [2021-12-19 19:13:03,167 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 297 [2021-12-19 19:13:03,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 459 states to 429 states and 570 transitions. [2021-12-19 19:13:03,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 429 [2021-12-19 19:13:03,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 429 [2021-12-19 19:13:03,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 429 states and 570 transitions. [2021-12-19 19:13:03,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:13:03,177 INFO L681 BuchiCegarLoop]: Abstraction has 429 states and 570 transitions. [2021-12-19 19:13:03,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states and 570 transitions. [2021-12-19 19:13:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 248. [2021-12-19 19:13:03,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 248 states have (on average 1.3266129032258065) internal successors, (329), 247 states have internal predecessors, (329), 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) [2021-12-19 19:13:03,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 329 transitions. [2021-12-19 19:13:03,233 INFO L704 BuchiCegarLoop]: Abstraction has 248 states and 329 transitions. [2021-12-19 19:13:03,234 INFO L587 BuchiCegarLoop]: Abstraction has 248 states and 329 transitions. [2021-12-19 19:13:03,234 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:13:03,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 329 transitions. [2021-12-19 19:13:03,236 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2021-12-19 19:13:03,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:03,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:03,236 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:03,237 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:03,237 INFO L791 eck$LassoCheckResult]: Stem: 861#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 768#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 711#L1016 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 698#L1009 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 699#L1024 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 716#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 843#L953 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 824#L851 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 802#L174-2 [2021-12-19 19:13:03,237 INFO L793 eck$LassoCheckResult]: Loop: 802#L174-2 assume !false; 679#L175 assume test_~splverifierCounter~0#1 < 4; 680#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 771#L184 assume !(0 != test_~tmp~0#1); 820#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 821#L194 assume !(0 != test_~tmp___0~0#1); 722#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 855#L204 assume 0 != test_~tmp___2~0#1; 703#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 707#L376 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 708#L861 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 760#L247 assume !(0 != ~pumpRunning~0); 815#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 799#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 761#L279-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 763#L271-3 assume { :end_inline_processEnvironment__wrappee__base } true; 783#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 746#L305-1 assume { :end_inline_processEnvironment } true; 705#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 706#L133 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 826#L872 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 730#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 801#L264 assume { :end_inline_timeShift } true; 802#L174-2 [2021-12-19 19:13:03,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:03,238 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-19 19:13:03,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:03,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763124253] [2021-12-19 19:13:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:03,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,248 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:03,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:03,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1867743236, now seen corresponding path program 1 times [2021-12-19 19:13:03,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:03,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576803450] [2021-12-19 19:13:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:03,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:13:03,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:13:03,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:13:03,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576803450] [2021-12-19 19:13:03,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576803450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:13:03,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:13:03,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:13:03,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525862966] [2021-12-19 19:13:03,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:13:03,298 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:13:03,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:13:03,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:13:03,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:13:03,298 INFO L87 Difference]: Start difference. First operand 248 states and 329 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:13:03,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:13:03,354 INFO L93 Difference]: Finished difference Result 313 states and 398 transitions. [2021-12-19 19:13:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 19:13:03,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 313 states and 398 transitions. [2021-12-19 19:13:03,357 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 221 [2021-12-19 19:13:03,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 313 states to 313 states and 398 transitions. [2021-12-19 19:13:03,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 313 [2021-12-19 19:13:03,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 313 [2021-12-19 19:13:03,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 313 states and 398 transitions. [2021-12-19 19:13:03,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:13:03,360 INFO L681 BuchiCegarLoop]: Abstraction has 313 states and 398 transitions. [2021-12-19 19:13:03,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states and 398 transitions. [2021-12-19 19:13:03,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2021-12-19 19:13:03,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.2715654952076678) internal successors, (398), 312 states have internal predecessors, (398), 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) [2021-12-19 19:13:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 398 transitions. [2021-12-19 19:13:03,366 INFO L704 BuchiCegarLoop]: Abstraction has 313 states and 398 transitions. [2021-12-19 19:13:03,366 INFO L587 BuchiCegarLoop]: Abstraction has 313 states and 398 transitions. [2021-12-19 19:13:03,366 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 19:13:03,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 398 transitions. [2021-12-19 19:13:03,368 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 221 [2021-12-19 19:13:03,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:03,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:03,368 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:03,368 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:03,368 INFO L791 eck$LassoCheckResult]: Stem: 1450#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1337#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1278#L1016 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1267#L1009 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1268#L1024 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1285#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1419#L953 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1397#L851 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1398#L174-2 [2021-12-19 19:13:03,369 INFO L793 eck$LassoCheckResult]: Loop: 1398#L174-2 assume !false; 1246#L175 assume test_~splverifierCounter~0#1 < 4; 1247#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1340#L184 assume !(0 != test_~tmp~0#1); 1393#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1394#L194 assume !(0 != test_~tmp___0~0#1); 1287#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 1441#L204 assume 0 != test_~tmp___2~0#1; 1272#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 1274#L376 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 1275#L861 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1327#L247 assume !(0 != ~pumpRunning~0); 1388#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1375#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1328#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1329#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1306#L146-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1307#L425-3 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1310#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1249#L431-1 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1250#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1399#L271-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1354#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1313#L305-1 assume { :end_inline_processEnvironment } true; 1269#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1270#L133 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 1535#L872 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 1534#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1533#L264 assume { :end_inline_timeShift } true; 1398#L174-2 [2021-12-19 19:13:03,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-19 19:13:03,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:03,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316096833] [2021-12-19 19:13:03,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:03,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:03,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:03,388 INFO L85 PathProgramCache]: Analyzing trace with hash 849815258, now seen corresponding path program 1 times [2021-12-19 19:13:03,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:03,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341024782] [2021-12-19 19:13:03,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:03,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:13:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:13:03,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:13:03,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341024782] [2021-12-19 19:13:03,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341024782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:13:03,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:13:03,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 19:13:03,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837514700] [2021-12-19 19:13:03,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:13:03,445 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:13:03,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:13:03,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 19:13:03,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 19:13:03,445 INFO L87 Difference]: Start difference. First operand 313 states and 398 transitions. cyclomatic complexity: 88 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-12-19 19:13:03,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:13:03,498 INFO L93 Difference]: Finished difference Result 612 states and 770 transitions. [2021-12-19 19:13:03,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 19:13:03,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 612 states and 770 transitions. [2021-12-19 19:13:03,503 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 438 [2021-12-19 19:13:03,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 612 states to 612 states and 770 transitions. [2021-12-19 19:13:03,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 612 [2021-12-19 19:13:03,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 612 [2021-12-19 19:13:03,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 612 states and 770 transitions. [2021-12-19 19:13:03,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:13:03,506 INFO L681 BuchiCegarLoop]: Abstraction has 612 states and 770 transitions. [2021-12-19 19:13:03,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states and 770 transitions. [2021-12-19 19:13:03,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 325. [2021-12-19 19:13:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 325 states have (on average 1.2615384615384615) internal successors, (410), 324 states have internal predecessors, (410), 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) [2021-12-19 19:13:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 410 transitions. [2021-12-19 19:13:03,523 INFO L704 BuchiCegarLoop]: Abstraction has 325 states and 410 transitions. [2021-12-19 19:13:03,523 INFO L587 BuchiCegarLoop]: Abstraction has 325 states and 410 transitions. [2021-12-19 19:13:03,523 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 19:13:03,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states and 410 transitions. [2021-12-19 19:13:03,525 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 229 [2021-12-19 19:13:03,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:03,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:03,527 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:03,527 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:03,527 INFO L791 eck$LassoCheckResult]: Stem: 2382#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2273#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2213#L1016 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2202#L1009 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2203#L1024 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2220#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2355#L953 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2335#L851 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2336#L174-2 [2021-12-19 19:13:03,527 INFO L793 eck$LassoCheckResult]: Loop: 2336#L174-2 assume !false; 2482#L175 assume test_~splverifierCounter~0#1 < 4; 2483#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 2502#L184 assume !(0 != test_~tmp~0#1); 2500#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 2498#L194 assume !(0 != test_~tmp___0~0#1); 2496#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 2371#L204 assume 0 != test_~tmp___2~0#1; 2205#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 2209#L376 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 2210#L861 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2263#L247 assume !(0 != ~pumpRunning~0); 2325#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2309#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2264#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2265#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2380#L146-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 2244#L425-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2245#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2184#L431-1 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 2185#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2337#L271-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2292#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2251#L305-1 assume { :end_inline_processEnvironment } true; 2252#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 2491#L133 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 2487#L872 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 2485#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2484#L264 assume { :end_inline_timeShift } true; 2336#L174-2 [2021-12-19 19:13:03,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:03,529 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-19 19:13:03,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:03,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225910978] [2021-12-19 19:13:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:03,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,536 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,550 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:03,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:03,550 INFO L85 PathProgramCache]: Analyzing trace with hash 591649820, now seen corresponding path program 1 times [2021-12-19 19:13:03,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:03,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866306320] [2021-12-19 19:13:03,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:03,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:13:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:13:03,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:13:03,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866306320] [2021-12-19 19:13:03,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866306320] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:13:03,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:13:03,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:13:03,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198455218] [2021-12-19 19:13:03,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:13:03,593 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:13:03,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:13:03,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 19:13:03,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 19:13:03,595 INFO L87 Difference]: Start difference. First operand 325 states and 410 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-12-19 19:13:03,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:13:03,735 INFO L93 Difference]: Finished difference Result 1408 states and 1768 transitions. [2021-12-19 19:13:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-19 19:13:03,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1408 states and 1768 transitions. [2021-12-19 19:13:03,742 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 979 [2021-12-19 19:13:03,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1408 states to 1408 states and 1768 transitions. [2021-12-19 19:13:03,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1408 [2021-12-19 19:13:03,747 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1408 [2021-12-19 19:13:03,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1408 states and 1768 transitions. [2021-12-19 19:13:03,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:13:03,748 INFO L681 BuchiCegarLoop]: Abstraction has 1408 states and 1768 transitions. [2021-12-19 19:13:03,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states and 1768 transitions. [2021-12-19 19:13:03,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 627. [2021-12-19 19:13:03,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 627 states have (on average 1.251993620414673) internal successors, (785), 626 states have internal predecessors, (785), 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) [2021-12-19 19:13:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 785 transitions. [2021-12-19 19:13:03,758 INFO L704 BuchiCegarLoop]: Abstraction has 627 states and 785 transitions. [2021-12-19 19:13:03,758 INFO L587 BuchiCegarLoop]: Abstraction has 627 states and 785 transitions. [2021-12-19 19:13:03,758 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-19 19:13:03,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 627 states and 785 transitions. [2021-12-19 19:13:03,760 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 448 [2021-12-19 19:13:03,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:03,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:03,761 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:03,761 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:03,761 INFO L791 eck$LassoCheckResult]: Stem: 4178#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 4031#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3965#L1016 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3952#L1009 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3953#L1024 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3970#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 4130#L953 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 4103#L851 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4104#L174-2 [2021-12-19 19:13:03,761 INFO L793 eck$LassoCheckResult]: Loop: 4104#L174-2 assume !false; 4372#L175 assume test_~splverifierCounter~0#1 < 4; 4373#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 4445#L184 assume !(0 != test_~tmp~0#1); 4443#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 4441#L194 assume !(0 != test_~tmp___0~0#1); 4439#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 4434#L204 assume 0 != test_~tmp___2~0#1; 4431#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 4430#L376 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 4429#L861 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4407#L247 assume !(0 != ~pumpRunning~0); 4093#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 4073#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 4021#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 4022#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3994#L146-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 3995#L425-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4001#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 3936#L431-1 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 3937#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4128#L271-2 assume { :end_inline_processEnvironment__wrappee__base } true; 4531#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4528#L305-1 assume { :end_inline_processEnvironment } true; 4386#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 4387#L133 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 4382#L872 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 4383#L376-1 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 4379#L876 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 4378#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 4374#L264 assume { :end_inline_timeShift } true; 4104#L174-2 [2021-12-19 19:13:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2021-12-19 19:13:03,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:03,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654893391] [2021-12-19 19:13:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:03,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,773 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,783 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:03,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1620698583, now seen corresponding path program 1 times [2021-12-19 19:13:03,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:03,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363959963] [2021-12-19 19:13:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:03,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,788 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,791 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:03,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash 808658382, now seen corresponding path program 1 times [2021-12-19 19:13:03,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:03,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46121187] [2021-12-19 19:13:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:03,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,798 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:03,806 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:05,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:13:05 BoogieIcfgContainer [2021-12-19 19:13:05,836 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:13:05,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:13:05,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:13:05,838 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:13:05,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:13:02" (3/4) ... [2021-12-19 19:13:05,840 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 19:13:05,921 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 19:13:05,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:13:05,922 INFO L158 Benchmark]: Toolchain (without parser) took 4573.00ms. Allocated memory was 107.0MB in the beginning and 218.1MB in the end (delta: 111.1MB). Free memory was 77.0MB in the beginning and 182.0MB in the end (delta: -105.1MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-12-19 19:13:05,923 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:13:05,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.24ms. Allocated memory was 107.0MB in the beginning and 165.7MB in the end (delta: 58.7MB). Free memory was 76.7MB in the beginning and 131.4MB in the end (delta: -54.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 19:13:05,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.36ms. Allocated memory is still 165.7MB. Free memory was 131.4MB in the beginning and 127.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:13:05,923 INFO L158 Benchmark]: Boogie Preprocessor took 55.70ms. Allocated memory is still 165.7MB. Free memory was 127.9MB in the beginning and 125.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-19 19:13:05,924 INFO L158 Benchmark]: RCFGBuilder took 482.19ms. Allocated memory is still 165.7MB. Free memory was 125.2MB in the beginning and 100.9MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-19 19:13:05,924 INFO L158 Benchmark]: BuchiAutomizer took 3403.69ms. Allocated memory was 165.7MB in the beginning and 218.1MB in the end (delta: 52.4MB). Free memory was 100.9MB in the beginning and 185.2MB in the end (delta: -84.3MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. [2021-12-19 19:13:05,924 INFO L158 Benchmark]: Witness Printer took 84.65ms. Allocated memory is still 218.1MB. Free memory was 185.2MB in the beginning and 182.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:13:05,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.24ms. Allocated memory was 107.0MB in the beginning and 165.7MB in the end (delta: 58.7MB). Free memory was 76.7MB in the beginning and 131.4MB in the end (delta: -54.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.36ms. Allocated memory is still 165.7MB. Free memory was 131.4MB in the beginning and 127.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.70ms. Allocated memory is still 165.7MB. Free memory was 127.9MB in the beginning and 125.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 482.19ms. Allocated memory is still 165.7MB. Free memory was 125.2MB in the beginning and 100.9MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3403.69ms. Allocated memory was 165.7MB in the beginning and 218.1MB in the end (delta: 52.4MB). Free memory was 100.9MB in the beginning and 185.2MB in the end (delta: -84.3MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. * Witness Printer took 84.65ms. Allocated memory is still 218.1MB. Free memory was 185.2MB in the beginning and 182.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 627 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1249 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 627 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2780 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2780 mSDsluCounter, 4136 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2862 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 1274 mSDtfsCounter, 295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 174]: 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, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fc1723c=29, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c4a321f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@707438f=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e74d6c6=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fdc168a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f6548af=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2845adb1=0, retValue_acc=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23a9d2ea=0, methaneLevelCritical=0, tmp=1, retValue_acc=0, \result=1, \result=1, tmp=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9ec33db=0, tmp___2=29, \result=0, tmp=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cfd3ba1=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@572cc840=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 174]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L845] int switchedOnBeforeTS ; [L894] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L1020] int retValue_acc ; [L1023] retValue_acc = 1 [L1024] return (retValue_acc); [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L961] CALL __utac_acc__Specification5_spec__1() [L850] switchedOnBeforeTS = 0 [L961] RET __utac_acc__Specification5_spec__1() [L962] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 Loop: [L174] COND TRUE 1 [L176] COND TRUE splverifierCounter < 4 [L182] tmp = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp)) [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp___2) [L219] CALL timeShift() [L245] CALL __utac_acc__Specification5_spec__2() [L859] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] switchedOnBeforeTS = isPumpRunning() [L245] RET __utac_acc__Specification5_spec__2() [L247] COND FALSE !(\read(pumpRunning)) [L254] COND TRUE \read(systemActive) [L256] CALL processEnvironment() [L302] int tmp ; [L305] COND FALSE !(\read(pumpRunning)) [L320] CALL processEnvironment__wrappee__highWaterSensor() [L276] int tmp ; [L279] COND TRUE ! pumpRunning [L281] CALL, EXPR isHighWaterLevel() [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L423] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L423] RET, EXPR isHighWaterSensorDry() [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); [L281] RET, EXPR isHighWaterLevel() [L281] tmp = isHighWaterLevel() [L283] COND FALSE !(\read(tmp)) [L289] FCALL processEnvironment__wrappee__base() [L320] RET processEnvironment__wrappee__highWaterSensor() [L256] RET processEnvironment() [L262] CALL __utac_acc__Specification5_spec__3() [L865] int tmp ; [L866] int tmp___0 ; [L870] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L870] RET, EXPR getWaterLevel() [L870] tmp = getWaterLevel() [L872] COND TRUE tmp != 2 [L874] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L874] RET, EXPR isPumpRunning() [L874] tmp___0 = isPumpRunning() [L876] COND FALSE !(\read(tmp___0)) [L262] RET __utac_acc__Specification5_spec__3() [L219] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 19:13:05,975 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)