./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt --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 78e630cdfb1cd89877a912be67c0a041bc0bca96 .......................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-12 23:59:05,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-12 23:59:05,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-12 23:59:05,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-12 23:59:05,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-12 23:59:05,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-12 23:59:05,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-12 23:59:05,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-12 23:59:05,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-12 23:59:05,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-12 23:59:05,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-12 23:59:05,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-12 23:59:05,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-12 23:59:05,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-12 23:59:05,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-12 23:59:05,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-12 23:59:05,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-12 23:59:05,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-12 23:59:05,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-12 23:59:05,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-12 23:59:05,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-12 23:59:05,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-12 23:59:05,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-12 23:59:05,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-12 23:59:05,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-12 23:59:05,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-12 23:59:05,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-12 23:59:05,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-12 23:59:05,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-12 23:59:05,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-12 23:59:05,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-12 23:59:05,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-12 23:59:05,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-12 23:59:05,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-12 23:59:05,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-12 23:59:05,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-12 23:59:05,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-12 23:59:05,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-12 23:59:05,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-12 23:59:05,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-12 23:59:05,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-12 23:59:05,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-12 23:59:05,789 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-12 23:59:05,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-12 23:59:05,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-12 23:59:05,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-12 23:59:05,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-12 23:59:05,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-12 23:59:05,793 INFO L138 SettingsManager]: * Use SBE=true [2021-10-12 23:59:05,793 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-12 23:59:05,793 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-12 23:59:05,793 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-12 23:59:05,794 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-12 23:59:05,795 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-12 23:59:05,795 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-12 23:59:05,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-12 23:59:05,796 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-12 23:59:05,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-12 23:59:05,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-12 23:59:05,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-12 23:59:05,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-12 23:59:05,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-12 23:59:05,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-12 23:59:05,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-12 23:59:05,797 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-12 23:59:05,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-12 23:59:05,798 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-12 23:59:05,798 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-12 23:59:05,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-12 23:59:05,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-12 23:59:05,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-12 23:59:05,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-12 23:59:05,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-12 23:59:05,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-12 23:59:05,801 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-12 23:59:05,801 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78e630cdfb1cd89877a912be67c0a041bc0bca96 [2021-10-12 23:59:06,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-12 23:59:06,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-12 23:59:06,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-12 23:59:06,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-12 23:59:06,081 INFO L275 PluginConnector]: CDTParser initialized [2021-10-12 23:59:06,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c [2021-10-12 23:59:06,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/data/a6267d193/ec5176689d0d4b46a23e764726748055/FLAG5337c18eb [2021-10-12 23:59:06,678 INFO L306 CDTParser]: Found 1 translation units. [2021-10-12 23:59:06,679 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c [2021-10-12 23:59:06,693 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/data/a6267d193/ec5176689d0d4b46a23e764726748055/FLAG5337c18eb [2021-10-12 23:59:07,024 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/data/a6267d193/ec5176689d0d4b46a23e764726748055 [2021-10-12 23:59:07,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-12 23:59:07,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-12 23:59:07,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:07,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-12 23:59:07,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-12 23:59:07,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5150da87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07, skipping insertion in model container [2021-10-12 23:59:07,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-12 23:59:07,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-12 23:59:07,352 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c[5507,5520] [2021-10-12 23:59:07,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:07,489 INFO L203 MainTranslator]: Completed pre-run [2021-10-12 23:59:07,544 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c[5507,5520] [2021-10-12 23:59:07,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:07,624 INFO L208 MainTranslator]: Completed translation [2021-10-12 23:59:07,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07 WrapperNode [2021-10-12 23:59:07,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:07,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:07,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-12 23:59:07,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-12 23:59:07,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:07,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-12 23:59:07,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-12 23:59:07,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-12 23:59:07,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-12 23:59:07,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-12 23:59:07,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-12 23:59:07,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-12 23:59:07,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (1/1) ... [2021-10-12 23:59:07,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-12 23:59:07,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:07,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-12 23:59:07,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-12 23:59:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-12 23:59:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-12 23:59:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-12 23:59:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-12 23:59:08,582 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-12 23:59:08,582 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-12 23:59:08,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:08 BoogieIcfgContainer [2021-10-12 23:59:08,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-12 23:59:08,586 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-12 23:59:08,586 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-12 23:59:08,590 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-12 23:59:08,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-12 23:59:08,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 11:59:07" (1/3) ... [2021-10-12 23:59:08,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5179100f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 11:59:08, skipping insertion in model container [2021-10-12 23:59:08,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-12 23:59:08,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:07" (2/3) ... [2021-10-12 23:59:08,593 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5179100f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 11:59:08, skipping insertion in model container [2021-10-12 23:59:08,593 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-12 23:59:08,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:08" (3/3) ... [2021-10-12 23:59:08,595 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product15.cil.c [2021-10-12 23:59:08,639 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-12 23:59:08,640 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-12 23:59:08,640 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-12 23:59:08,640 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-12 23:59:08,640 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-12 23:59:08,640 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-12 23:59:08,641 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-12 23:59:08,641 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-12 23:59:08,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 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) [2021-10-12 23:59:08,680 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-12 23:59:08,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:08,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:08,689 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:08,689 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:08,690 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-12 23:59:08,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 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) [2021-10-12 23:59:08,696 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-12 23:59:08,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:08,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:08,697 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:08,697 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:08,702 INFO L791 eck$LassoCheckResult]: Stem: 54#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 45#L-1true havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 9#L768true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 33#L776true main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 40#L903true assume 0 != main_~tmp~7; 22#L879true ~methAndRunningLastTime~0 := 0; 55#L787true havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 73#L798-1true [2021-10-12 23:59:08,703 INFO L793 eck$LassoCheckResult]: Loop: 73#L798-1true assume !false; 17#L231true assume test_~splverifierCounter~0 < 4; 70#L232true test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 29#L240true assume !(0 != test_~tmp~2); 49#L240-1true test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 25#L250true assume !(0 != test_~tmp___0~0); 30#L250-1true test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 68#L260true assume 0 != test_~tmp___2~0; 32#L266-1true assume !(0 != ~pumpRunning~0); 44#L59true assume !(0 != ~systemActive~0); 42#L66true havoc __utac_acc__Specification2_spec__2_#t~ret76, __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;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; 31#L331-1true __utac_acc__Specification2_spec__2_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret76;havoc __utac_acc__Specification2_spec__2_#t~ret76; 48#L798true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 73#L798-1true [2021-10-12 23:59:08,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:08,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-12 23:59:08,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:08,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732892948] [2021-10-12 23:59:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:08,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:08,935 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:09,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:09,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:09,091 INFO L82 PathProgramCache]: Analyzing trace with hash 10972499, now seen corresponding path program 1 times [2021-10-12 23:59:09,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:09,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612846739] [2021-10-12 23:59:09,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:09,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:09,116 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:09,138 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:09,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:09,140 INFO L82 PathProgramCache]: Analyzing trace with hash 844269005, now seen corresponding path program 1 times [2021-10-12 23:59:09,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:09,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300007102] [2021-10-12 23:59:09,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:09,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:09,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:09,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-12 23:59:09,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300007102] [2021-10-12 23:59:09,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300007102] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-12 23:59:09,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-12 23:59:09,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-12 23:59:09,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320125881] [2021-10-12 23:59:09,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-12 23:59:09,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-12 23:59:09,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-12 23:59:09,563 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 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 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-10-12 23:59:09,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-12 23:59:09,928 INFO L93 Difference]: Finished difference Result 190 states and 265 transitions. [2021-10-12 23:59:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-12 23:59:09,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 265 transitions. [2021-10-12 23:59:09,939 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 119 [2021-10-12 23:59:09,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 169 states and 244 transitions. [2021-10-12 23:59:09,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2021-10-12 23:59:09,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2021-10-12 23:59:09,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 244 transitions. [2021-10-12 23:59:09,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-12 23:59:09,950 INFO L681 BuchiCegarLoop]: Abstraction has 169 states and 244 transitions. [2021-10-12 23:59:09,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 244 transitions. [2021-10-12 23:59:09,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 109. [2021-10-12 23:59:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.4403669724770642) internal successors, (157), 108 states have internal predecessors, (157), 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) [2021-10-12 23:59:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2021-10-12 23:59:10,000 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 157 transitions. [2021-10-12 23:59:10,000 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 157 transitions. [2021-10-12 23:59:10,001 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-12 23:59:10,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 157 transitions. [2021-10-12 23:59:10,005 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2021-10-12 23:59:10,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:10,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:10,006 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:10,006 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:10,007 INFO L791 eck$LassoCheckResult]: Stem: 342#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 339#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 290#L768 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 291#L776 main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 334#L903 assume 0 != main_~tmp~7; 314#L879 ~methAndRunningLastTime~0 := 0; 315#L787 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 319#L798-1 [2021-10-12 23:59:10,007 INFO L793 eck$LassoCheckResult]: Loop: 319#L798-1 assume !false; 306#L231 assume test_~splverifierCounter~0 < 4; 307#L232 test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 326#L240 assume !(0 != test_~tmp~2); 328#L240-1 test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 320#L250 assume !(0 != test_~tmp___0~0); 322#L250-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 329#L260 assume 0 != test_~tmp___2~0; 300#L266-1 assume !(0 != ~pumpRunning~0); 333#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 325#L91 assume !(0 != ~pumpRunning~0); 317#L66 havoc __utac_acc__Specification2_spec__2_#t~ret76, __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;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; 330#L331-1 __utac_acc__Specification2_spec__2_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret76;havoc __utac_acc__Specification2_spec__2_#t~ret76; 331#L798 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 319#L798-1 [2021-10-12 23:59:10,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:10,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-12 23:59:10,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:10,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282297348] [2021-10-12 23:59:10,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:10,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:10,075 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:10,183 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:10,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:10,191 INFO L82 PathProgramCache]: Analyzing trace with hash 319619009, now seen corresponding path program 1 times [2021-10-12 23:59:10,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:10,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495106357] [2021-10-12 23:59:10,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:10,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:10,202 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:10,208 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:10,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:10,215 INFO L82 PathProgramCache]: Analyzing trace with hash 382006919, now seen corresponding path program 1 times [2021-10-12 23:59:10,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:10,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112324132] [2021-10-12 23:59:10,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:10,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:10,280 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:10,369 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:00:10,784 WARN L207 SmtUtils]: Spent 1.00 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:01:16,618 WARN L207 SmtUtils]: Spent 33.40 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:01:16,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:01:16 BoogieIcfgContainer [2021-10-13 00:01:16,860 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:01:16,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:01:16,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:01:16,861 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:01:16,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:08" (3/4) ... [2021-10-13 00:01:16,864 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:01:16,930 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:01:16,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:01:16,932 INFO L168 Benchmark]: Toolchain (without parser) took 129898.01 ms. Allocated memory was 107.0 MB in the beginning and 165.7 MB in the end (delta: 58.7 MB). Free memory was 74.8 MB in the beginning and 124.1 MB in the end (delta: -49.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:16,933 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:01:16,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.33 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 75.5 MB in the end (delta: -990.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:16,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.23 ms. Allocated memory is still 107.0 MB. Free memory was 75.5 MB in the beginning and 72.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:16,935 INFO L168 Benchmark]: Boogie Preprocessor took 52.85 ms. Allocated memory is still 107.0 MB. Free memory was 72.6 MB in the beginning and 70.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:16,936 INFO L168 Benchmark]: RCFGBuilder took 837.77 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 70.5 MB in the beginning and 90.6 MB in the end (delta: -20.1 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:16,937 INFO L168 Benchmark]: BuchiAutomizer took 128274.01 ms. Allocated memory was 130.0 MB in the beginning and 165.7 MB in the end (delta: 35.7 MB). Free memory was 90.0 MB in the beginning and 126.1 MB in the end (delta: -36.1 MB). Peak memory consumption was 85.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:16,938 INFO L168 Benchmark]: Witness Printer took 70.22 ms. Allocated memory is still 165.7 MB. Free memory was 126.1 MB in the beginning and 124.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:16,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 588.33 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 75.5 MB in the end (delta: -990.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.23 ms. Allocated memory is still 107.0 MB. Free memory was 75.5 MB in the beginning and 72.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.85 ms. Allocated memory is still 107.0 MB. Free memory was 72.6 MB in the beginning and 70.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 837.77 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 70.5 MB in the beginning and 90.6 MB in the end (delta: -20.1 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 128274.01 ms. Allocated memory was 130.0 MB in the beginning and 165.7 MB in the end (delta: 35.7 MB). Free memory was 90.0 MB in the beginning and 126.1 MB in the end (delta: -36.1 MB). Peak memory consumption was 85.8 MB. Max. memory is 16.1 GB. * Witness Printer took 70.22 ms. Allocated memory is still 165.7 MB. Free memory was 126.1 MB in the beginning and 124.1 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 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 127.6s. Construction of modules took 0.2s. 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 33.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 60 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 96 SDtfs, 444 SDslu, 470 SDs, 0 SdLazy, 38 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 271.6ms 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: 230]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28342} State at position 1 is {NULL=28355, NULL=0, NULL=0, NULL=0, NULL=28342, NULL=28352, NULL=0, NULL=0, NULL=28359, retValue_acc=0, NULL=28361, NULL=28370, methaneLevelCritical=0, NULL=28357, tmp=0, NULL=0, NULL=0, NULL=28358, NULL=28353, NULL=0, tmp___1=0, NULL=28347, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f79f594=0, NULL=28356, cleanupTimeShifts=4, NULL=28345, NULL=28363, NULL=28366, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=28351, NULL=28348, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b2463d1=0, retValue_acc=0, tmp___0=0, NULL=28360, NULL=0, NULL=28368, \result=1, head=0, pumpRunning=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1835ad74=0, NULL=28344, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5278e03=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54322d2e=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e388425=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d1d832b=0, NULL=28364, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@246da3ab=0, NULL=28350, NULL=28354, NULL=0, retValue_acc=1, NULL=0, NULL=28367, tmp___2=74, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=28343, NULL=28365, tmp=0, NULL=28362, head=0, NULL=28369, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=28349, NULL=28346, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L288] int waterLevel = 1; [L289] int methaneLevelCritical = 0; [L546] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L781] int methAndRunningLastTime ; [L820] int cleanupTimeShifts = 4; [L894] int retValue_acc ; [L895] int tmp ; [L772] int retValue_acc ; [L775] retValue_acc = 1 [L776] return (retValue_acc); [L901] tmp = valid_product() [L903] COND TRUE \read(tmp) [L786] methAndRunningLastTime = 0 [L221] int splverifierCounter ; [L222] int tmp ; [L223] int tmp___0 ; [L224] int tmp___1 ; [L225] int tmp___2 ; [L228] splverifierCounter = 0 Loop: [L230] COND TRUE 1 [L232] COND TRUE splverifierCounter < 4 [L238] tmp = __VERIFIER_nondet_int() [L240] COND FALSE !(\read(tmp)) [L248] tmp___0 = __VERIFIER_nondet_int() [L250] COND FALSE !(\read(tmp___0)) [L258] tmp___2 = __VERIFIER_nondet_int() [L260] COND TRUE \read(tmp___2) [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L88] int tmp ; [L91] COND FALSE !(\read(pumpRunning)) [L791] int tmp ; [L792] int tmp___0 ; [L327] int retValue_acc ; [L330] retValue_acc = methaneLevelCritical [L331] return (retValue_acc); [L796] tmp = isMethaneLevelCritical() [L798] COND FALSE !(\read(tmp)) [L814] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:01:17,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8955c06d-ae13-4105-80f9-8cc322327da7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...