./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product29.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_spec5_product29.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 7e4f86dc48d359b31b3ab5f4412d745c46cabdc6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:23:28,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:23:28,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:23:28,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:23:28,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:23:28,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:23:28,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:23:28,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:23:28,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:23:28,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:23:28,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:23:28,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:23:28,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:23:28,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:23:28,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:23:28,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:23:28,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:23:28,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:23:28,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:23:28,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:23:28,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:23:28,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:23:28,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:23:28,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:23:28,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:23:28,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:23:28,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:23:28,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:23:28,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:23:28,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:23:28,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:23:28,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:23:28,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:23:28,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:23:28,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:23:28,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:23:28,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:23:28,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:23:28,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:23:28,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:23:28,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:23:28,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:23:28,889 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:23:28,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:23:28,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:23:28,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:23:28,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:23:28,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:23:28,891 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:23:28,891 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:23:28,891 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:23:28,891 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:23:28,891 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:23:28,891 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:23:28,891 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:23:28,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:23:28,892 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:23:28,892 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:23:28,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:23:28,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:23:28,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:23:28,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:23:28,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:23:28,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:23:28,893 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:23:28,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:23:28,893 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:23:28,893 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:23:28,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:23:28,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:23:28,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:23:28,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:23:28,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:23:28,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:23:28,895 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:23:28,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4f86dc48d359b31b3ab5f4412d745c46cabdc6 [2021-08-27 16:23:29,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:23:29,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:23:29,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:23:29,129 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:23:29,130 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:23:29,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product29.cil.c [2021-08-27 16:23:29,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21d35a935/34677b52c59443e2abb05ab19e4bf622/FLAG0b68c28d6 [2021-08-27 16:23:29,589 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:23:29,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product29.cil.c [2021-08-27 16:23:29,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21d35a935/34677b52c59443e2abb05ab19e4bf622/FLAG0b68c28d6 [2021-08-27 16:23:29,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21d35a935/34677b52c59443e2abb05ab19e4bf622 [2021-08-27 16:23:29,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:23:29,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:23:29,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:23:29,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:23:29,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:23:29,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:29,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594a243a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29, skipping insertion in model container [2021-08-27 16:23:29,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:29,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:23:29,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:23:29,833 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_spec5_product29.cil.c[1817,1830] [2021-08-27 16:23:29,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:23:29,933 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:23:29,942 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_spec5_product29.cil.c[1817,1830] [2021-08-27 16:23:29,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:23:29,989 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:23:29,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29 WrapperNode [2021-08-27 16:23:29,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:23:29,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:23:29,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:23:29,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:23:29,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:23:30,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:23:30,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:23:30,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:23:30,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:23:30,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:23:30,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:23:30,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:23:30,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (1/1) ... [2021-08-27 16:23:30,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:23:30,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:23:30,131 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 16:23:30,138 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 16:23:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:23:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:23:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:23:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:23:30,836 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:23:30,837 INFO L299 CfgBuilder]: Removed 170 assume(true) statements. [2021-08-27 16:23:30,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:23:30 BoogieIcfgContainer [2021-08-27 16:23:30,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:23:30,839 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:23:30,839 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:23:30,840 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:23:30,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:23:30,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:23:29" (1/3) ... [2021-08-27 16:23:30,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@cca21b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:23:30, skipping insertion in model container [2021-08-27 16:23:30,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:23:30,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:29" (2/3) ... [2021-08-27 16:23:30,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@cca21b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:23:30, skipping insertion in model container [2021-08-27 16:23:30,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:23:30,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:23:30" (3/3) ... [2021-08-27 16:23:30,843 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product29.cil.c [2021-08-27 16:23:30,867 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:23:30,867 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:23:30,867 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:23:30,867 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:23:30,867 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:23:30,867 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:23:30,867 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:23:30,868 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:23:30,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 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 16:23:30,904 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-08-27 16:23:30,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:23:30,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:23:30,909 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:30,909 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:30,909 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:23:30,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 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 16:23:30,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-08-27 16:23:30,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:23:30,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:23:30,917 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:30,917 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:30,922 INFO L791 eck$LassoCheckResult]: Stem: 102#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~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 30#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 101#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; 54#L75true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 32#L272true assume 0 != main_~tmp~0; 59#L246true ~switchedOnBeforeTS~0 := 0; 86#L926true havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, 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; 33#L947-1true [2021-08-27 16:23:30,933 INFO L793 eck$LassoCheckResult]: Loop: 33#L947-1true assume !false; 99#L500true assume test_~splverifierCounter~0 < 4; 39#L501true test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 35#L509true assume !(0 != test_~tmp~5); 76#L509-1true test_~tmp___0~1 := test_#t~nondet41;havoc test_#t~nondet41; 77#L519true assume !(0 != test_~tmp___0~1); 110#L519-1true test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 83#L529true assume 0 != test_~tmp___2~0; 105#L535-2true havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 75#L429true __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 27#L936true assume !(0 != ~pumpRunning~0); 81#L301true assume !(0 != ~systemActive~0); 11#L308true havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 95#L171true __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 45#L947true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 33#L947-1true [2021-08-27 16:23:30,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:30,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:23:30,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:30,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781550634] [2021-08-27 16:23:30,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:30,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:31,066 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:31,152 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:31,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:31,154 INFO L82 PathProgramCache]: Analyzing trace with hash 95582188, now seen corresponding path program 1 times [2021-08-27 16:23:31,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:31,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074805323] [2021-08-27 16:23:31,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:31,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:31,159 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:31,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:31,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:31,167 INFO L82 PathProgramCache]: Analyzing trace with hash 2029607398, now seen corresponding path program 1 times [2021-08-27 16:23:31,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:31,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427775220] [2021-08-27 16:23:31,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:31,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:23:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:23:31,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:23:31,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427775220] [2021-08-27 16:23:31,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427775220] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:23:31,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:23:31,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 16:23:31,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079005553] [2021-08-27 16:23:31,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:23:31,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 16:23:31,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-27 16:23:31,441 INFO L87 Difference]: Start difference. First operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 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 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:23:31,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:23:31,580 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2021-08-27 16:23:31,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 16:23:31,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 154 transitions. [2021-08-27 16:23:31,585 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-08-27 16:23:31,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2021-08-27 16:23:31,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-08-27 16:23:31,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2021-08-27 16:23:31,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2021-08-27 16:23:31,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:23:31,590 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-08-27 16:23:31,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2021-08-27 16:23:31,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-08-27 16:23:31,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.4134615384615385) internal successors, (147), 103 states have internal predecessors, (147), 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 16:23:31,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2021-08-27 16:23:31,609 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-08-27 16:23:31,610 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-08-27 16:23:31,610 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:23:31,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2021-08-27 16:23:31,612 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-08-27 16:23:31,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:23:31,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:23:31,613 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:31,613 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:31,613 INFO L791 eck$LassoCheckResult]: Stem: 343#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~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 283#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 284#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; 313#L75 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 287#L272 assume 0 != main_~tmp~0; 288#L246 ~switchedOnBeforeTS~0 := 0; 320#L926 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, 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; 277#L947-1 [2021-08-27 16:23:31,613 INFO L793 eck$LassoCheckResult]: Loop: 277#L947-1 assume !false; 289#L500 assume test_~splverifierCounter~0 < 4; 296#L501 test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 290#L509 assume !(0 != test_~tmp~5); 292#L509-1 test_~tmp___0~1 := test_#t~nondet41;havoc test_#t~nondet41; 330#L519 assume !(0 != test_~tmp___0~1); 325#L519-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 338#L529 assume 0 != test_~tmp___2~0; 334#L535-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 329#L429 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 278#L936 assume !(0 != ~pumpRunning~0); 279#L301 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret20, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 336#L359 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret19, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 339#L333-1 assume !(0 != ~pumpRunning~0); 252#L308 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 253#L171 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 303#L947 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 277#L947-1 [2021-08-27 16:23:31,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:31,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:23:31,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:31,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868780712] [2021-08-27 16:23:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:31,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:31,646 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:31,680 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:31,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:31,680 INFO L82 PathProgramCache]: Analyzing trace with hash -489209282, now seen corresponding path program 1 times [2021-08-27 16:23:31,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:31,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661243321] [2021-08-27 16:23:31,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:31,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:31,684 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:31,689 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:31,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:31,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1611821640, now seen corresponding path program 1 times [2021-08-27 16:23:31,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:31,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745395280] [2021-08-27 16:23:31,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:31,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:23:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:23:31,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:23:31,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745395280] [2021-08-27 16:23:31,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745395280] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:23:31,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:23:31,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:23:31,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112066865] [2021-08-27 16:23:31,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:23:31,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 16:23:31,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 16:23:31,870 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 16:23:31,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:23:31,986 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2021-08-27 16:23:31,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 16:23:31,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2021-08-27 16:23:31,990 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2021-08-27 16:23:31,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2021-08-27 16:23:31,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2021-08-27 16:23:31,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2021-08-27 16:23:31,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2021-08-27 16:23:31,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:23:31,995 INFO L681 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2021-08-27 16:23:31,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2021-08-27 16:23:32,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2021-08-27 16:23:32,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.3930348258706469) internal successors, (280), 200 states have internal predecessors, (280), 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 16:23:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2021-08-27 16:23:32,004 INFO L704 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2021-08-27 16:23:32,004 INFO L587 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2021-08-27 16:23:32,004 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 16:23:32,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2021-08-27 16:23:32,005 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2021-08-27 16:23:32,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:23:32,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:23:32,006 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:32,006 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:32,006 INFO L791 eck$LassoCheckResult]: Stem: 801#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~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 725#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 726#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; 760#L75 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 729#L272 assume 0 != main_~tmp~0; 730#L246 ~switchedOnBeforeTS~0 := 0; 768#L926 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, 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; 719#L947-1 [2021-08-27 16:23:32,007 INFO L793 eck$LassoCheckResult]: Loop: 719#L947-1 assume !false; 731#L500 assume test_~splverifierCounter~0 < 4; 740#L501 test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 733#L509 assume !(0 != test_~tmp~5); 735#L509-1 test_~tmp___0~1 := test_#t~nondet41;havoc test_#t~nondet41; 782#L519 assume !(0 != test_~tmp___0~1); 775#L519-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 790#L529 assume 0 != test_~tmp___2~0; 786#L535-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 781#L429 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 720#L936 assume !(0 != ~pumpRunning~0); 721#L301 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret20, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 788#L359 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret19, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 791#L333-1 assume !(0 != ~pumpRunning~0); 694#L308 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 695#L171 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 746#L947 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 747#L429-1 __utac_acc__Specification5_spec__3_#t~ret81 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 717#L951 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 719#L947-1 [2021-08-27 16:23:32,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:32,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-08-27 16:23:32,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:32,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201568786] [2021-08-27 16:23:32,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:32,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:32,027 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:32,052 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:32,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:32,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1978697447, now seen corresponding path program 1 times [2021-08-27 16:23:32,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:32,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279835642] [2021-08-27 16:23:32,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:32,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:32,057 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:32,060 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:32,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:32,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1522585107, now seen corresponding path program 1 times [2021-08-27 16:23:32,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:32,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688292883] [2021-08-27 16:23:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:32,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:32,080 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:32,123 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:24:13,506 WARN L207 SmtUtils]: Spent 41.20 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:24:55,946 WARN L207 SmtUtils]: Spent 20.57 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:24:56,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:24:56 BoogieIcfgContainer [2021-08-27 16:24:56,046 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:24:56,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:24:56,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:24:56,047 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:24:56,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:23:30" (3/4) ... [2021-08-27 16:24:56,049 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:24:56,079 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:24:56,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:24:56,080 INFO L168 Benchmark]: Toolchain (without parser) took 86461.74 ms. Allocated memory was 69.2 MB in the beginning and 132.1 MB in the end (delta: 62.9 MB). Free memory was 49.2 MB in the beginning and 50.6 MB in the end (delta: -1.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:56,080 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 69.2 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:24:56,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.21 ms. Allocated memory is still 69.2 MB. Free memory was 49.1 MB in the beginning and 43.8 MB in the end (delta: 5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:56,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.00 ms. Allocated memory is still 69.2 MB. Free memory was 43.8 MB in the beginning and 40.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:56,081 INFO L168 Benchmark]: Boogie Preprocessor took 48.84 ms. Allocated memory is still 69.2 MB. Free memory was 40.2 MB in the beginning and 37.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:56,082 INFO L168 Benchmark]: RCFGBuilder took 733.51 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 37.5 MB in the beginning and 64.7 MB in the end (delta: -27.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:56,082 INFO L168 Benchmark]: BuchiAutomizer took 85207.74 ms. Allocated memory was 86.0 MB in the beginning and 132.1 MB in the end (delta: 46.1 MB). Free memory was 64.7 MB in the beginning and 53.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 87.9 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:56,082 INFO L168 Benchmark]: Witness Printer took 32.75 ms. Allocated memory is still 132.1 MB. Free memory was 53.6 MB in the beginning and 50.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:56,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 69.2 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 369.21 ms. Allocated memory is still 69.2 MB. Free memory was 49.1 MB in the beginning and 43.8 MB in the end (delta: 5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.00 ms. Allocated memory is still 69.2 MB. Free memory was 43.8 MB in the beginning and 40.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.84 ms. Allocated memory is still 69.2 MB. Free memory was 40.2 MB in the beginning and 37.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 733.51 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 37.5 MB in the beginning and 64.7 MB in the end (delta: -27.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 85207.74 ms. Allocated memory was 86.0 MB in the beginning and 132.1 MB in the end (delta: 46.1 MB). Free memory was 64.7 MB in the beginning and 53.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 87.9 MB. Max. memory is 16.1 GB. * Witness Printer took 32.75 ms. Allocated memory is still 132.1 MB. Free memory was 53.6 MB in the beginning and 50.6 MB in the end (delta: 3.0 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 85.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 84.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 20.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 390 SDtfs, 1137 SDslu, 470 SDs, 0 SdLazy, 105 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 145.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 499]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=32285} State at position 1 is {NULL=40460, NULL=0, NULL=0, NULL=0, NULL=0, NULL=32285, NULL=32287, retValue_acc=0, NULL=40462, NULL=32288, NULL=44067, NULL=40454, NULL=40449, methaneLevelCritical=0, tmp=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=40453, NULL=40450, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f60183d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e69a02f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f5d97f=0, cleanupTimeShifts=4, NULL=40452, switchedOnBeforeTS=0, \result=0, NULL=40461, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17668e5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@723c6854=49, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cd89901=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@552b1250=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=40456, \result=1, head=0, pumpRunning=0, tmp___0=0, tmp=1, \result=0, NULL=44068, NULL=0, NULL=44066, NULL=0, NULL=0, NULL=0, NULL=40448, NULL=0, NULL=0, NULL=40465, NULL=0, NULL=0, NULL=40455, NULL=0, retValue_acc=1, tmp___2=49, NULL=0, NULL=40467, tmp___0=0, NULL=32286, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62978553=0, NULL=40464, NULL=40457, NULL=44069, NULL=40459, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=40463, NULL=0, NULL=40451, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@202f5d24=0, NULL=0, NULL=0, NULL=44065, NULL=40458, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@551bf27f=0, NULL=40466} - 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; [L185] int cleanupTimeShifts = 4; [L289] int pumpRunning = 0; [L290] int systemActive = 1; [L723] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L920] int switchedOnBeforeTS ; [L263] int retValue_acc ; [L264] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L270] tmp = valid_product() [L272] COND TRUE \read(tmp) [L925] switchedOnBeforeTS = 0 [L490] int splverifierCounter ; [L491] int tmp ; [L492] int tmp___0 ; [L493] int tmp___1 ; [L494] int tmp___2 ; [L497] splverifierCounter = 0 Loop: [L499] COND TRUE 1 [L501] COND TRUE splverifierCounter < 4 [L507] tmp = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp)) [L517] tmp___0 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___0)) [L527] tmp___2 = __VERIFIER_nondet_int() [L529] COND TRUE \read(tmp___2) [L425] int retValue_acc ; [L428] retValue_acc = pumpRunning [L429] return (retValue_acc); [L934] switchedOnBeforeTS = isPumpRunning() [L301] COND FALSE !(\read(pumpRunning)) [L308] COND TRUE \read(systemActive) [L356] int tmp ; [L359] COND FALSE !(\read(pumpRunning)) [L330] int tmp ; [L333] COND FALSE !(\read(pumpRunning)) [L940] int tmp ; [L941] int tmp___0 ; [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); [L945] tmp = getWaterLevel() [L947] COND TRUE tmp != 2 [L425] int retValue_acc ; [L428] retValue_acc = pumpRunning [L429] return (retValue_acc); [L949] tmp___0 = isPumpRunning() [L951] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:24:56,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...