./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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_spec4_product30.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 29e1776280b08715eabf298fe4ff149758448bf2 ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:29:14,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:29:14,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:29:15,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:29:15,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:29:15,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:29:15,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:29:15,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:29:15,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:29:15,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:29:15,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:29:15,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:29:15,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:29:15,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:29:15,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:29:15,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:29:15,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:29:15,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:29:15,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:29:15,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:29:15,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:29:15,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:29:15,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:29:15,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:29:15,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:29:15,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:29:15,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:29:15,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:29:15,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:29:15,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:29:15,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:29:15,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:29:15,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:29:15,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:29:15,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:29:15,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:29:15,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:29:15,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:29:15,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:29:15,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:29:15,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:29:15,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:29:15,100 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:29:15,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:29:15,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:29:15,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:29:15,103 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:29:15,103 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:29:15,103 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:29:15,103 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:29:15,104 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:29:15,104 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:29:15,104 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:29:15,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:29:15,105 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:29:15,105 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:29:15,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:29:15,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:29:15,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:29:15,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:29:15,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:29:15,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:29:15,106 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:29:15,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:29:15,106 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:29:15,106 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:29:15,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:29:15,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:29:15,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:29:15,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:29:15,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:29:15,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:29:15,108 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:29:15,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29e1776280b08715eabf298fe4ff149758448bf2 [2021-07-06 20:29:15,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:29:15,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:29:15,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:29:15,376 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:29:15,381 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:29:15,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2021-07-06 20:29:15,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2d6c7c1/1202985b50d64aadabe6e86a5ad99adc/FLAG9bf7e8b10 [2021-07-06 20:29:15,791 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:29:15,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2021-07-06 20:29:15,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2d6c7c1/1202985b50d64aadabe6e86a5ad99adc/FLAG9bf7e8b10 [2021-07-06 20:29:16,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2d6c7c1/1202985b50d64aadabe6e86a5ad99adc [2021-07-06 20:29:16,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:29:16,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:29:16,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:29:16,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:29:16,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:29:16,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367644e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16, skipping insertion in model container [2021-07-06 20:29:16,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:29:16,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:29:16,455 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c[17899,17912] [2021-07-06 20:29:16,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:29:16,471 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:29:16,545 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c[17899,17912] [2021-07-06 20:29:16,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:29:16,565 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:29:16,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16 WrapperNode [2021-07-06 20:29:16,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:29:16,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:29:16,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:29:16,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:29:16,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:29:16,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:29:16,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:29:16,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:29:16,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:29:16,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:29:16,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:29:16,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:29:16,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (1/1) ... [2021-07-06 20:29:16,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:29:16,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:29:16,671 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) [2021-07-06 20:29:16,684 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 [2021-07-06 20:29:16,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:29:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:29:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:29:16,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:29:17,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:29:17,263 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-07-06 20:29:17,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:29:17 BoogieIcfgContainer [2021-07-06 20:29:17,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:29:17,265 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:29:17,265 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:29:17,269 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:29:17,270 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:29:17,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:29:16" (1/3) ... [2021-07-06 20:29:17,271 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57963d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:29:17, skipping insertion in model container [2021-07-06 20:29:17,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:29:17,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:16" (2/3) ... [2021-07-06 20:29:17,272 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57963d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:29:17, skipping insertion in model container [2021-07-06 20:29:17,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:29:17,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:29:17" (3/3) ... [2021-07-06 20:29:17,273 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product30.cil.c [2021-07-06 20:29:17,299 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:29:17,299 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:29:17,300 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:29:17,300 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:29:17,300 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:29:17,300 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:29:17,300 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:29:17,300 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:29:17,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-07-06 20:29:17,330 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-07-06 20:29:17,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:29:17,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:29:17,335 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:29:17,335 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:29:17,335 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:29:17,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-07-06 20:29:17,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-07-06 20:29:17,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:29:17,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:29:17,341 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:29:17,341 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:29:17,344 INFO L791 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 4#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~9, main_~tmp~9;havoc main_~retValue_acc~9;havoc main_~tmp~9; 9#L929true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 12#L937true main_#t~ret79 := valid_product_#res;main_~tmp~9 := main_#t~ret79;havoc main_#t~ret79; 13#L893true assume 0 != main_~tmp~9; 66#L867true havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 84#L148-1true [2021-07-06 20:29:17,345 INFO L793 eck$LassoCheckResult]: Loop: 84#L148-1true assume !false; 33#L386true assume test_~splverifierCounter~0 < 4; 3#L387true test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 10#L395true assume !(0 != test_~tmp~5); 11#L395-1true test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 57#L405true assume !(0 != test_~tmp___0~2); 34#L405-1true test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 93#L415true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 104#L423-2true assume !(0 != ~pumpRunning~0); 92#L178true assume !(0 != ~systemActive~0); 50#L185true havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 55#L124true __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 86#L148true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 84#L148-1true [2021-07-06 20:29:17,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:17,348 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:29:17,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:17,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637019304] [2021-07-06 20:29:17,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:17,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:17,505 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:17,571 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:17,593 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:29:17,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:17,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1679344189, now seen corresponding path program 1 times [2021-07-06 20:29:17,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:17,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067760058] [2021-07-06 20:29:17,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:17,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:29:17,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:17,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:29:17,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:17,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:29:17,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:17,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:29:17,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:29:17,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:29:17,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067760058] [2021-07-06 20:29:17,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067760058] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:29:17,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:29:17,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:29:17,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269037548] [2021-07-06 20:29:17,642 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:29:17,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:29:17,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:29:17,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:29:17,655 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-07-06 20:29:17,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:29:17,698 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2021-07-06 20:29:17,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:29:17,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 143 transitions. [2021-07-06 20:29:17,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-07-06 20:29:17,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2021-07-06 20:29:17,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2021-07-06 20:29:17,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-07-06 20:29:17,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2021-07-06 20:29:17,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:29:17,713 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-07-06 20:29:17,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2021-07-06 20:29:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-07-06 20:29:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 94 states have internal predecessors, (135), 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) [2021-07-06 20:29:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-07-06 20:29:17,739 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-07-06 20:29:17,739 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-07-06 20:29:17,739 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:29:17,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2021-07-06 20:29:17,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-07-06 20:29:17,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:29:17,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:29:17,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:29:17,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:29:17,744 INFO L791 eck$LassoCheckResult]: Stem: 264#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 233#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~9, main_~tmp~9;havoc main_~retValue_acc~9;havoc main_~tmp~9; 234#L929 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 257#L937 main_#t~ret79 := valid_product_#res;main_~tmp~9 := main_#t~ret79;havoc main_#t~ret79; 263#L893 assume 0 != main_~tmp~9; 247#L867 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 248#L148-1 [2021-07-06 20:29:17,744 INFO L793 eck$LassoCheckResult]: Loop: 248#L148-1 assume !false; 285#L386 assume test_~splverifierCounter~0 < 4; 215#L387 test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 216#L395 assume !(0 != test_~tmp~5); 260#L395-1 test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 227#L405 assume !(0 != test_~tmp___0~2); 228#L405-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 300#L415 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 301#L423-2 assume !(0 != ~pumpRunning~0); 266#L178 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret20, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 299#L236 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret19, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 276#L210-1 assume !(0 != ~pumpRunning~0); 278#L185 havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 223#L124 __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 224#L148 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 248#L148-1 [2021-07-06 20:29:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:17,745 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:29:17,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:17,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090645227] [2021-07-06 20:29:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:17,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:17,789 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:17,818 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:17,826 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:29:17,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:17,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1091435467, now seen corresponding path program 1 times [2021-07-06 20:29:17,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:17,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046017205] [2021-07-06 20:29:17,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:17,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:17,835 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:17,848 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:17,851 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:29:17,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:17,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1358149583, now seen corresponding path program 1 times [2021-07-06 20:29:17,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:17,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513722026] [2021-07-06 20:29:17,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:17,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:17,879 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:17,901 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:17,914 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:29:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:29:56,623 WARN L205 SmtUtils]: Spent 38.60 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:29:56,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:56,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:30:17,209 WARN L205 SmtUtils]: Spent 20.53 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:30:17,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:30:17 BoogieIcfgContainer [2021-07-06 20:30:17,303 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:30:17,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:30:17,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:30:17,304 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:30:17,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:29:17" (3/4) ... [2021-07-06 20:30:17,307 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:30:17,363 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:30:17,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:30:17,366 INFO L168 Benchmark]: Toolchain (without parser) took 61162.20 ms. Allocated memory was 58.7 MB in the beginning and 104.9 MB in the end (delta: 46.1 MB). Free memory was 36.1 MB in the beginning and 79.2 MB in the end (delta: -43.2 MB). Peak memory consumption was 61.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:17,366 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:30:17,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.72 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.8 MB in the beginning and 45.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:17,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 71.3 MB. Free memory was 45.4 MB in the beginning and 42.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:17,368 INFO L168 Benchmark]: Boogie Preprocessor took 29.08 ms. Allocated memory is still 71.3 MB. Free memory was 42.0 MB in the beginning and 39.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:17,368 INFO L168 Benchmark]: RCFGBuilder took 615.83 ms. Allocated memory is still 71.3 MB. Free memory was 39.5 MB in the beginning and 36.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:17,368 INFO L168 Benchmark]: BuchiAutomizer took 60038.78 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 36.3 MB in the beginning and 20.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 52.9 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:17,369 INFO L168 Benchmark]: Witness Printer took 61.45 ms. Allocated memory is still 104.9 MB. Free memory was 20.7 MB in the beginning and 79.2 MB in the end (delta: -58.6 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:17,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 360.72 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.8 MB in the beginning and 45.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 71.3 MB. Free memory was 45.4 MB in the beginning and 42.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.08 ms. Allocated memory is still 71.3 MB. Free memory was 42.0 MB in the beginning and 39.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 615.83 ms. Allocated memory is still 71.3 MB. Free memory was 39.5 MB in the beginning and 36.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 60038.78 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 36.3 MB in the beginning and 20.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 52.9 MB. Max. memory is 16.1 GB. * Witness Printer took 61.45 ms. Allocated memory is still 104.9 MB. Free memory was 20.7 MB in the beginning and 79.2 MB in the end (delta: -58.6 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 59.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 59.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 17.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 140 SDtfs, 140 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 385]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=681} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=706, NULL=0, NULL=681, NULL=686, NULL=688, NULL=687, retValue_acc=0, NULL=702, NULL=690, methaneLevelCritical=0, NULL=705, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3defd0de=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=708, NULL=685, cleanupTimeShifts=4, NULL=701, NULL=699, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a69f82=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66dbdbda=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bcf33cc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66904007=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=700, NULL=0, NULL=682, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, NULL=692, NULL=0, NULL=697, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77025be7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bac0a1d=0, NULL=696, tmp=1, NULL=0, NULL=0, NULL=684, NULL=0, NULL=0, NULL=709, NULL=0, tmp___2=68, NULL=0, tmp___0=0, NULL=694, NULL=707, splverifierCounter=0, NULL=0, NULL=695, NULL=704, NULL=693, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=683, NULL=0, tmp=1, NULL=703, NULL=698, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56f32085=0, NULL=689, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c063fca=0, NULL=691} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L171] int pumpRunning = 0; [L172] int systemActive = 1; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L808] int cleanupTimeShifts = 4; [L884] int retValue_acc ; [L885] int tmp ; [L933] int retValue_acc ; [L936] retValue_acc = 1 [L937] return (retValue_acc); [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) [L376] int splverifierCounter ; [L377] int tmp ; [L378] int tmp___0 ; [L379] int tmp___1 ; [L380] int tmp___2 ; [L383] splverifierCounter = 0 Loop: [L385] COND TRUE 1 [L387] COND TRUE splverifierCounter < 4 [L393] tmp = __VERIFIER_nondet_int() [L395] COND FALSE !(\read(tmp)) [L403] tmp___0 = __VERIFIER_nondet_int() [L405] COND FALSE !(\read(tmp___0)) [L413] tmp___2 = __VERIFIER_nondet_int() [L415] COND TRUE \read(tmp___2) [L369] systemActive = 1 [L178] COND FALSE !(\read(pumpRunning)) [L185] COND TRUE \read(systemActive) [L233] int tmp ; [L236] COND FALSE !(\read(pumpRunning)) [L207] int tmp ; [L210] COND FALSE !(\read(pumpRunning)) [L141] int tmp ; [L142] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L146] tmp = getWaterLevel() [L148] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:30:17,431 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...