./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product27.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_spec1_product27.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 576a1858cb64f3543afb00cb741cc3175c43895a ........................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:11:54,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:11:54,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:11:54,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:11:54,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:11:54,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:11:54,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:11:54,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:11:54,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:11:54,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:11:54,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:11:54,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:11:54,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:11:54,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:11:54,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:11:54,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:11:54,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:11:54,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:11:54,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:11:54,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:11:54,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:11:54,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:11:54,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:11:54,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:11:54,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:11:54,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:11:54,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:11:54,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:11:54,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:11:54,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:11:54,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:11:54,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:11:54,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:11:54,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:11:54,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:11:54,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:11:54,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:11:54,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:11:54,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:11:54,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:11:54,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:11:54,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:11:54,770 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:11:54,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:11:54,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:11:54,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:11:54,772 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:11:54,772 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:11:54,772 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:11:54,772 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:11:54,772 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:11:54,773 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:11:54,773 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:11:54,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:11:54,773 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:11:54,773 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:11:54,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:11:54,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:11:54,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:11:54,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:11:54,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:11:54,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:11:54,775 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:11:54,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:11:54,775 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:11:54,775 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:11:54,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:11:54,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:11:54,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:11:54,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:11:54,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:11:54,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:11:54,778 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:11:54,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 576a1858cb64f3543afb00cb741cc3175c43895a [2021-07-06 20:11:55,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:11:55,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:11:55,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:11:55,105 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:11:55,106 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:11:55,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c [2021-07-06 20:11:55,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2be01b66e/9bc9925d39b042dfa24ed4be72df74f7/FLAGb0bdc8331 [2021-07-06 20:11:55,711 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:11:55,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c [2021-07-06 20:11:55,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2be01b66e/9bc9925d39b042dfa24ed4be72df74f7/FLAGb0bdc8331 [2021-07-06 20:11:56,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2be01b66e/9bc9925d39b042dfa24ed4be72df74f7 [2021-07-06 20:11:56,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:11:56,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:11:56,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:11:56,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:11:56,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:11:56,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c03c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56, skipping insertion in model container [2021-07-06 20:11:56,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:11:56,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:11:56,424 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_spec1_product27.cil.c[1817,1830] [2021-07-06 20:11:56,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:11:56,589 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:11:56,611 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_spec1_product27.cil.c[1817,1830] [2021-07-06 20:11:56,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:11:56,708 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:11:56,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56 WrapperNode [2021-07-06 20:11:56,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:11:56,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:11:56,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:11:56,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:11:56,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:11:56,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:11:56,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:11:56,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:11:56,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:11:56,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:11:56,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:11:56,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:11:56,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (1/1) ... [2021-07-06 20:11:56,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:11:56,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:11:56,890 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 20:11:56,909 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 20:11:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:11:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:11:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:11:56,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:11:57,649 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:11:57,649 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-07-06 20:11:57,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:11:57 BoogieIcfgContainer [2021-07-06 20:11:57,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:11:57,653 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:11:57,653 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:11:57,655 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:11:57,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:11:57,656 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:11:56" (1/3) ... [2021-07-06 20:11:57,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f48c7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:11:57, skipping insertion in model container [2021-07-06 20:11:57,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:11:57,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:56" (2/3) ... [2021-07-06 20:11:57,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f48c7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:11:57, skipping insertion in model container [2021-07-06 20:11:57,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:11:57,658 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:11:57" (3/3) ... [2021-07-06 20:11:57,659 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product27.cil.c [2021-07-06 20:11:57,698 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:11:57,699 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:11:57,699 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:11:57,699 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:11:57,699 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:11:57,699 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:11:57,699 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:11:57,700 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:11:57,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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 20:11:57,736 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-07-06 20:11:57,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:11:57,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:11:57,742 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:11:57,746 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:11:57,747 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:11:57,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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 20:11:57,760 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-07-06 20:11:57,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:11:57,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:11:57,762 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:11:57,762 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:11:57,766 INFO L791 eck$LassoCheckResult]: Stem: 39#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 12#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 58#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 70#L75true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 35#L297true assume 0 != main_~tmp~1; 67#L273true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 42#L194-1true [2021-07-06 20:11:57,773 INFO L793 eck$LassoCheckResult]: Loop: 42#L194-1true assume !false; 57#L689true assume test_~splverifierCounter~0 < 4; 73#L690true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 23#L698true assume !(0 != test_~tmp~5); 3#L698-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 63#L708true assume !(0 != test_~tmp___0~1); 65#L708-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 51#L718true assume 0 != test_~tmp___2~0; 15#L724-1true assume !(0 != ~pumpRunning~0); 43#L754true assume !(0 != ~systemActive~0); 24#L761true havoc __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_#t~ret19, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 41#L139true __utac_acc__Specification1_spec__1_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret18;havoc __utac_acc__Specification1_spec__1_#t~ret18; 45#L194true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 42#L194-1true [2021-07-06 20:11:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:57,778 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:11:57,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:57,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816907950] [2021-07-06 20:11:57,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:57,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:58,045 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:58,152 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:58,189 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:58,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095029, now seen corresponding path program 1 times [2021-07-06 20:11:58,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:58,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967876766] [2021-07-06 20:11:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:58,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:58,198 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:58,203 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:58,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:58,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:58,213 INFO L82 PathProgramCache]: Analyzing trace with hash 41183909, now seen corresponding path program 1 times [2021-07-06 20:11:58,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:58,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584271754] [2021-07-06 20:11:58,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:58,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:11:58,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:58,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:11:58,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:58,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:11:58,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:58,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:11:58,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:58,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:11:58,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:58,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:11:58,408 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 20:11:58,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:11:58,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584271754] [2021-07-06 20:11:58,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584271754] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:11:58,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:11:58,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:11:58,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956045336] [2021-07-06 20:11:58,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:58,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-06 20:11:58,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:11:58,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:11:58,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:11:58,551 INFO L87 Difference]: Start difference. First operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:11:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:11:58,848 INFO L93 Difference]: Finished difference Result 192 states and 264 transitions. [2021-07-06 20:11:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 20:11:58,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 192 states and 264 transitions. [2021-07-06 20:11:58,857 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 121 [2021-07-06 20:11:58,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 192 states to 171 states and 243 transitions. [2021-07-06 20:11:58,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2021-07-06 20:11:58,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2021-07-06 20:11:58,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 243 transitions. [2021-07-06 20:11:58,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:11:58,866 INFO L681 BuchiCegarLoop]: Abstraction has 171 states and 243 transitions. [2021-07-06 20:11:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 243 transitions. [2021-07-06 20:11:58,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 108. [2021-07-06 20:11:58,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 108 states have (on average 1.4166666666666667) internal successors, (153), 107 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 20:11:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2021-07-06 20:11:58,896 INFO L704 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2021-07-06 20:11:58,896 INFO L587 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2021-07-06 20:11:58,896 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:11:58,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states and 153 transitions. [2021-07-06 20:11:58,898 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2021-07-06 20:11:58,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:11:58,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:11:58,899 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:11:58,899 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:11:58,899 INFO L791 eck$LassoCheckResult]: Stem: 329#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 297#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 298#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 343#L75 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 325#L297 assume 0 != main_~tmp~1; 326#L273 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 319#L194-1 [2021-07-06 20:11:58,899 INFO L793 eck$LassoCheckResult]: Loop: 319#L194-1 assume !false; 332#L689 assume test_~splverifierCounter~0 < 4; 342#L690 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 314#L698 assume !(0 != test_~tmp~5); 284#L698-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 285#L708 assume !(0 != test_~tmp___0~1); 341#L708-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 338#L718 assume 0 != test_~tmp___2~0; 301#L724-1 assume !(0 != ~pumpRunning~0); 287#L754 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 304#L786 assume !(0 != ~pumpRunning~0); 306#L761 havoc __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_#t~ret19, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 316#L139 __utac_acc__Specification1_spec__1_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret18;havoc __utac_acc__Specification1_spec__1_#t~ret18; 331#L194 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 319#L194-1 [2021-07-06 20:11:58,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:58,900 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:11:58,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:58,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584304497] [2021-07-06 20:11:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:58,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:58,957 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:58,987 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:58,997 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:58,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:58,998 INFO L82 PathProgramCache]: Analyzing trace with hash -353331269, now seen corresponding path program 1 times [2021-07-06 20:11:58,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:58,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247016523] [2021-07-06 20:11:58,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:58,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:59,003 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:59,005 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:59,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:59,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:59,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708257, now seen corresponding path program 1 times [2021-07-06 20:11:59,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:59,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391003344] [2021-07-06 20:11:59,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:59,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:59,038 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:59,087 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:59,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:59,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:59,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:12:42,584 WARN L205 SmtUtils]: Spent 43.41 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:12:42,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:42,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:13:02,582 WARN L205 SmtUtils]: Spent 19.93 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:13:02,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:13:02 BoogieIcfgContainer [2021-07-06 20:13:02,694 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:13:02,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:13:02,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:13:02,695 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:13:02,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:11:57" (3/4) ... [2021-07-06 20:13:02,700 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:13:02,745 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:13:02,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:13:02,746 INFO L168 Benchmark]: Toolchain (without parser) took 66690.65 ms. Allocated memory was 50.3 MB in the beginning and 92.3 MB in the end (delta: 41.9 MB). Free memory was 25.1 MB in the beginning and 58.9 MB in the end (delta: -33.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:02,747 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:13:02,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.91 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 34.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:02,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.68 ms. Allocated memory is still 60.8 MB. Free memory was 33.8 MB in the beginning and 44.0 MB in the end (delta: -10.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:02,748 INFO L168 Benchmark]: Boogie Preprocessor took 55.86 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 41.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:02,748 INFO L168 Benchmark]: RCFGBuilder took 790.13 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 41.9 MB in the beginning and 53.6 MB in the end (delta: -11.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:02,748 INFO L168 Benchmark]: BuchiAutomizer took 65041.65 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 53.2 MB in the beginning and 60.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:02,748 INFO L168 Benchmark]: Witness Printer took 50.74 ms. Allocated memory is still 92.3 MB. Free memory was 60.9 MB in the beginning and 58.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:02,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 640.91 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 34.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.68 ms. Allocated memory is still 60.8 MB. Free memory was 33.8 MB in the beginning and 44.0 MB in the end (delta: -10.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.86 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 41.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 790.13 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 41.9 MB in the beginning and 53.6 MB in the end (delta: -11.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 65041.65 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 53.2 MB in the beginning and 60.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. * Witness Printer took 50.74 ms. Allocated memory is still 92.3 MB. Free memory was 60.9 MB in the beginning and 58.9 MB in the end (delta: 2.0 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 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 6 locations. The remainder module has 108 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 64.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 64.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 18.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 63 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 108 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 98 SDtfs, 370 SDslu, 524 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 174.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 688]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=25683, NULL=0, NULL=0, NULL=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=25680, NULL=25675, NULL=25692, methaneLevelCritical=0, NULL=25674, tmp=0, NULL=25669, NULL=0, NULL=0, NULL=25691, tmp___1=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70ffee60=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d09a3d8=0, NULL=25677, cleanupTimeShifts=4, NULL=25682, NULL=25690, NULL=25693, NULL=25667, NULL=0, systemActive=1, waterLevel=1, NULL=0, retValue_acc=0, NULL=25672, NULL=0, NULL=0, NULL=0, NULL=25688, \result=1, head=0, pumpRunning=0, NULL=25671, \result=0, NULL=25687, NULL=25673, NULL=25695, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=25668, NULL=0, NULL=0, NULL=0, NULL=25676, NULL=0, retValue_acc=1, tmp___2=64, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=25678, NULL=25681, NULL=25685, NULL=25689, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b3fd4a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51d7d1ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3848354e=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cf3d53a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ce9deee=0, head=0, tmp=0, NULL=0, NULL=25679, NULL=25670, NULL=0, NULL=0, NULL=25684, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5baf1450=0, NULL=25686} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L212] int cleanupTimeShifts = 4; [L480] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L747] int pumpRunning = 0; [L748] int systemActive = 1; [L288] int retValue_acc ; [L289] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L295] tmp = valid_product() [L297] COND TRUE \read(tmp) [L679] int splverifierCounter ; [L680] int tmp ; [L681] int tmp___0 ; [L682] int tmp___1 ; [L683] int tmp___2 ; [L686] splverifierCounter = 0 Loop: [L688] COND TRUE 1 [L690] COND TRUE splverifierCounter < 4 [L696] tmp = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp)) [L706] tmp___0 = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp___0)) [L716] tmp___2 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___2) [L754] COND FALSE !(\read(pumpRunning)) [L761] COND TRUE \read(systemActive) [L783] int tmp ; [L786] COND FALSE !(\read(pumpRunning)) [L187] int tmp ; [L188] int tmp___0 ; [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L192] tmp = isMethaneLevelCritical() [L194] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:13:02,797 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...