./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product02.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_spec1_product02.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 c57429e002f9d5550c9a9653029ab3d1b9a653f9 ...................................................................................................................................................................................................................................................................................................................... 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-dev-20ed64e [2021-08-27 15:51:38,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:51:38,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:51:38,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:51:38,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:51:38,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:51:38,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:51:38,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:51:38,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:51:38,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:51:38,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:51:38,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:51:38,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:51:38,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:51:38,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:51:38,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:51:38,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:51:38,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:51:38,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:51:38,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:51:38,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:51:38,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:51:38,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:51:38,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:51:38,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:51:38,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:51:38,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:51:38,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:51:38,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:51:38,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:51:38,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:51:38,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:51:38,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:51:38,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:51:38,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:51:38,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:51:38,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:51:38,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:51:38,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:51:38,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:51:38,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:51:38,853 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:51:38,872 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:51:38,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:51:38,872 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:51:38,873 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:51:38,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:51:38,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:51:38,874 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:51:38,874 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:51:38,874 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:51:38,875 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:51:38,875 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:51:38,875 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:51:38,875 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:51:38,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:51:38,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:51:38,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:51:38,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:51:38,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:51:38,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:51:38,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:51:38,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:51:38,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:51:38,877 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:51:38,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:51:38,877 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:51:38,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:51:38,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:51:38,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:51:38,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:51:38,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:51:38,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:51:38,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:51:38,879 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:51:38,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c57429e002f9d5550c9a9653029ab3d1b9a653f9 [2021-08-27 15:51:39,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:51:39,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:51:39,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:51:39,208 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:51:39,208 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:51:39,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product02.cil.c [2021-08-27 15:51:39,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6eb229d/61de3d3acaa24b198549c4838e737b1d/FLAGf793602db [2021-08-27 15:51:39,713 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:51:39,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product02.cil.c [2021-08-27 15:51:39,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6eb229d/61de3d3acaa24b198549c4838e737b1d/FLAGf793602db [2021-08-27 15:51:39,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6eb229d/61de3d3acaa24b198549c4838e737b1d [2021-08-27 15:51:39,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:51:39,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:51:39,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:51:39,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:51:39,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:51:39,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:51:39" (1/1) ... [2021-08-27 15:51:39,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0212f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:39, skipping insertion in model container [2021-08-27 15:51:39,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:51:39" (1/1) ... [2021-08-27 15:51:39,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:51:39,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:51:39,927 WARN L228 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_spec1_product02.cil.c[6849,6862] [2021-08-27 15:51:40,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:51:40,013 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:51:40,047 WARN L228 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_spec1_product02.cil.c[6849,6862] [2021-08-27 15:51:40,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:51:40,097 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:51:40,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40 WrapperNode [2021-08-27 15:51:40,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:51:40,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:51:40,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:51:40,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:51:40,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:51:40,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:51:40,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:51:40,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:51:40,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:51:40,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:51:40,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:51:40,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:51:40,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (1/1) ... [2021-08-27 15:51:40,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:51:40,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:51:40,191 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) [2021-08-27 15:51:40,200 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 [2021-08-27 15:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:51:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:51:40,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:51:40,925 INFO L299 CfgBuilder]: Removed 68 assume(true) statements. [2021-08-27 15:51:40,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:51:40 BoogieIcfgContainer [2021-08-27 15:51:40,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:51:40,929 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:51:40,929 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:51:40,933 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:51:40,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:51:40,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:51:39" (1/3) ... [2021-08-27 15:51:40,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78ca4c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:51:40, skipping insertion in model container [2021-08-27 15:51:40,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:51:40,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:40" (2/3) ... [2021-08-27 15:51:40,936 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78ca4c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:51:40, skipping insertion in model container [2021-08-27 15:51:40,936 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:51:40,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:51:40" (3/3) ... [2021-08-27 15:51:40,937 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product02.cil.c [2021-08-27 15:51:40,976 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:51:40,977 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:51:40,977 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:51:40,977 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:51:40,977 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:51:40,977 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:51:40,977 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:51:40,977 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:51:40,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 54 states, 53 states have (on average 1.528301886792453) internal successors, (81), 53 states have internal predecessors, (81), 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) [2021-08-27 15:51:41,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2021-08-27 15:51:41,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:51:41,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:51:41,021 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:51:41,021 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:51:41,021 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:51:41,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 54 states, 53 states have (on average 1.528301886792453) internal successors, (81), 53 states have internal predecessors, (81), 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) [2021-08-27 15:51:41,030 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2021-08-27 15:51:41,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:51:41,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:51:41,031 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:51:41,031 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:51:41,039 INFO L791 eck$LassoCheckResult]: Stem: 47#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 40#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 17#L385true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 22#L393true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 50#L132true assume 0 != main_~tmp~0; 23#L105true havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 15#L345-1true [2021-08-27 15:51:41,041 INFO L793 eck$LassoCheckResult]: Loop: 15#L345-1true assume !false; 28#L280true assume test_~splverifierCounter~0 < 4; 18#L281true test_~tmp~1 := test_#t~nondet25;havoc test_#t~nondet25; 33#L289true assume !(0 != test_~tmp~1); 4#L289-1true test_~tmp___0~0 := test_#t~nondet26;havoc test_#t~nondet26; 35#L299true assume !(0 != test_~tmp___0~0); 32#L299-1true test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 21#L309true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 44#L317-2true assume !(0 != ~pumpRunning~0); 14#L161true assume 0 != ~systemActive~0; 8#L168true havoc __utac_acc__Specification1_spec__1_#t~ret29, __utac_acc__Specification1_spec__1_#t~ret30, __utac_acc__Specification1_spec__1_~tmp~2, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~2;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 29#L442true __utac_acc__Specification1_spec__1_#t~ret29 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~2 := __utac_acc__Specification1_spec__1_#t~ret29;havoc __utac_acc__Specification1_spec__1_#t~ret29; 48#L345true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2); 15#L345-1true [2021-08-27 15:51:41,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:51:41,047 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 15:51:41,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:51:41,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420646440] [2021-08-27 15:51:41,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:51:41,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:51:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:41,290 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:51:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:41,441 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:51:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:51:41,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1681619226, now seen corresponding path program 1 times [2021-08-27 15:51:41,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:51:41,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805524169] [2021-08-27 15:51:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:51:41,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:51:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:41,457 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:51:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:41,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:51:41,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:51:41,482 INFO L82 PathProgramCache]: Analyzing trace with hash 32659712, now seen corresponding path program 1 times [2021-08-27 15:51:41,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:51:41,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394909017] [2021-08-27 15:51:41,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:51:41,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:51:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:41,536 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:51:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:41,620 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:52:21,317 WARN L207 SmtUtils]: Spent 39.53 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 15:53:00,351 WARN L207 SmtUtils]: Spent 19.65 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 15:53:00,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:53:00 BoogieIcfgContainer [2021-08-27 15:53:00,479 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:53:00,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:53:00,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:53:00,480 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:53:00,481 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:51:40" (3/4) ... [2021-08-27 15:53:00,482 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:53:00,514 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:53:00,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:53:00,515 INFO L168 Benchmark]: Toolchain (without parser) took 80775.54 ms. Allocated memory was 65.0 MB in the beginning and 104.9 MB in the end (delta: 39.8 MB). Free memory was 45.0 MB in the beginning and 43.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:00,515 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 65.0 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 45.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:53:00,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.10 ms. Allocated memory is still 65.0 MB. Free memory was 44.7 MB in the beginning and 42.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:00,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.22 ms. Allocated memory is still 65.0 MB. Free memory was 42.7 MB in the beginning and 40.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:00,516 INFO L168 Benchmark]: Boogie Preprocessor took 26.54 ms. Allocated memory is still 65.0 MB. Free memory was 40.2 MB in the beginning and 38.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:00,517 INFO L168 Benchmark]: RCFGBuilder took 757.56 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 38.3 MB in the beginning and 54.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:00,517 INFO L168 Benchmark]: BuchiAutomizer took 79550.18 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.8 MB in the beginning and 45.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:00,518 INFO L168 Benchmark]: Witness Printer took 34.25 ms. Allocated memory is still 104.9 MB. Free memory was 45.7 MB in the beginning and 43.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:00,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 65.0 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 45.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.10 ms. Allocated memory is still 65.0 MB. Free memory was 44.7 MB in the beginning and 42.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.22 ms. Allocated memory is still 65.0 MB. Free memory was 42.7 MB in the beginning and 40.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.54 ms. Allocated memory is still 65.0 MB. Free memory was 40.2 MB in the beginning and 38.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 757.56 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 38.3 MB in the beginning and 54.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 79550.18 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.8 MB in the beginning and 45.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. * Witness Printer took 34.25 ms. Allocated memory is still 104.9 MB. Free memory was 45.7 MB in the beginning and 43.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 79.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 79.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 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: 279]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31825} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=31840, NULL=0, retValue_acc=0, NULL=31825, NULL=31827, NULL=0, NULL=0, NULL=0, NULL=31850, NULL=31829, NULL=31844, methaneLevelCritical=0, NULL=31848, NULL=0, NULL=0, NULL=31835, NULL=31832, tmp___1=0, NULL=0, NULL=0, tmp___0=0, NULL=31849, NULL=31846, cleanupTimeShifts=4, tmp=0, NULL=31841, NULL=0, systemActive=1, waterLevel=1, NULL=31831, NULL=0, NULL=0, NULL=31851, NULL=0, retValue_acc=0, tmp___0=0, NULL=31833, NULL=31838, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d9e4f27=0, \result=1, NULL=31836, head=0, pumpRunning=0, tmp=1, \result=0, NULL=31828, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74dbf289=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4baaf5c7=52, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a1497f9=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14f8a898=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c686b1e=0, tmp=0, NULL=0, NULL=31842, retValue_acc=1, NULL=31845, NULL=31837, NULL=0, NULL=0, NULL=0, NULL=0, NULL=31853, tmp___2=52, splverifierCounter=0, NULL=0, \result=0, NULL=31826, NULL=31839, NULL=31830, head=0, NULL=31852, NULL=0, NULL=0, NULL=0, NULL=0, NULL=31847, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61299190=0, NULL=0, NULL=31834, NULL=31843} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L153] int pumpRunning = 0; [L154] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L657] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L389] int retValue_acc ; [L392] retValue_acc = 1 [L393] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L270] int splverifierCounter ; [L271] int tmp ; [L272] int tmp___0 ; [L273] int tmp___1 ; [L274] int tmp___2 ; [L277] splverifierCounter = 0 Loop: [L279] COND TRUE 1 [L281] COND TRUE splverifierCounter < 4 [L287] tmp = __VERIFIER_nondet_int() [L289] COND FALSE !(\read(tmp)) [L297] tmp___0 = __VERIFIER_nondet_int() [L299] COND FALSE !(\read(tmp___0)) [L307] tmp___2 = __VERIFIER_nondet_int() [L309] COND TRUE \read(tmp___2) [L264] systemActive = 1 [L161] COND FALSE !(\read(pumpRunning)) [L168] COND TRUE \read(systemActive) [L338] int tmp ; [L339] int tmp___0 ; [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] return (retValue_acc); [L343] tmp = isMethaneLevelCritical() [L345] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:53:00,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...